7Baggers

BGC Partners, Inc
(NASDAQ:BGCP) 

BGCP stock logo

BGC Partners, Inc. operates as a brokerage and financial technology company in the United States, Canada, Europe, the United Kingdom, Latin America, Asia, Africa, the Middle East, and internationally. It offers various brokerage products, such as fixed income, such as government bonds, corporate bon...

Full Time Employees: 5,200
Sector: Financial Services
Industry: Capital Markets

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Quarterly
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    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-06-30 2014-09-30 2014-06-30 2014-03-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-06-30 2005-03-31 2004-12-31 2004-06-30 2003-12-31 2003-09-30 2003-06-30 
                                                                                    
      revenues:
                                                                                    
      commissions
    752,935,000 590,187,000 573,159,000 599,496,000 494,711,000 431,469,000 407,095,000 395,081,000 415,172,000 388,211,000 350,305,000 348,720,000 377,288,000 315,658,000 299,430,000 309,542,000 356,664,000 349,896,000 367,016,000 389,768,000 435,220,000 352,027,000 382,640,000 455,855,000 386,247,000 409,082,000 420,969,000 429,520,000 -487,851,000 671,318,000 658,320,000 580,033,000 547,126,000 524,287,000 496,265,000 498,588,000 475,087,000  487,810,000 331,466,000 291,666,000 303,598,000 283,293,000 324,832,000 298,704,000 292,367,000 303,124,000 308,030,000 272,488,000 250,921,000 261,496,000 244,714,000 206,275,000 208,918,000 213,863,000 222,033,000 182,014,000 175,219,000 164,305,000 172,280,000 179,144,000 225,482,000 212,541,000                  
      principal transactions
    142,892,000 104,398,000 99,951,000 120,403,000 116,078,000 84,590,000 93,551,000 98,439,000 112,849,000 73,563,000 84,725,000 94,883,000 114,929,000 82,169,000 79,568,000 88,169,000 115,601,000 73,004,000 73,997,000 81,997,000 98,763,000 65,182,000 99,453,000 113,311,000 71,725,000 75,536,000 90,432,000 84,230,000 62,787,000 73,360,000 84,988,000 80,360,000 85,743,000 70,262,000 76,332,000 86,448,000 92,439,000  95,349,000 51,327,000 72,751,000 79,507,000 67,785,000 85,349,000 87,997,000 76,312,000 76,417,000 83,686,000 99,745,000 79,888,000 94,997,000 98,109,000 91,466,000 83,381,000 99,606,000 103,128,000 91,460,000 90,608,000 106,438,000 91,261,000 80,614,000 48,832,000 66,062,000                  
      fees from related parties
    4,296,000 4,597,000 4,453,000 5,241,000 4,422,000 6,558,000 5,106,000 4,643,000 4,421,000 4,226,000 3,723,000 4,062,000 3,957,000 3,896,000 3,896,000 3,625,000 3,317,000 3,356,000 3,470,000 4,245,000 3,785,000 8,814,000 6,562,000 5,521,000 8,218,000 8,208,000 7,221,000 5,795,000 4,087,000 7,128,000 6,271,000 5,576,000 6,565,000 6,139,000 6,126,000 4,865,000 7,070,000  6,095,000 6,749,000 7,967,000 7,032,000 8,071,000 12,242,000 13,148,000 14,016,000 13,102,000 13,494,000 12,547,000 15,366,000 15,220,000 15,435,000 17,221,000 16,413,000 16,436,000 15,926,000 15,776,000 14,945,000 13,232,000 14,924,000 17,205,000 19,409,000 18,599,000                  
      data, network and post-trade
    34,468,000 36,669,000 34,349,000 35,462,000 32,500,000 32,587,000 32,661,000 30,812,000 30,903,000 29,551,000 27,797,000 27,000,000                                                                     
      interest and dividend income
    10,579,000 12,889,000 14,039,000 15,268,000 11,629,000 12,370,000 16,944,000 17,145,000 9,764,000 16,586,000 10,150,000 13,371,000 5,315,000 5,501,000 4,110,000 8,961,000 2,435,000 4,442,000 3,042,000 11,455,000 3,038,000 2,418,000 6,536,000                                                          
      other revenues
    10,311,000 7,627,000 10,898,000 8,134,000 4,900,000 4,758,000 5,754,000 4,641,000 5,505,000 4,623,000 5,994,000 5,044,000 4,256,000 4,228,000 5,755,000 2,068,000 4,320,000 6,756,000 3,984,000 3,383,000 4,784,000 5,075,000 3,758,000 4,921,000 -50,000 5,971,000 6,011,000 3,631,000 4,149,000 4,154,000 1,429,000 876,000 976,000 564,000 783,000 305,000 3,682,000  2,495,000 2,211,000 3,530,000 8,196,000 33,269,000 1,174,000 831,000 38,875,000 8,668,000 7,286,000 3,029,000 2,999,000 1,283,000 311,000 682,000 11,770,000 506,000 1,002,000 1,822,000 1,642,000 2,139,000 320,000                     
      total revenues
    955,481,000 756,367,000 736,849,000 784,004,000 664,240,000 572,332,000 561,111,000 550,761,000 578,614,000 516,760,000 482,694,000 493,080,000 532,867,000 436,515,000 416,567,000 435,756,000 506,464,000 461,591,000 473,747,000 512,450,000 567,576,000 455,039,000 519,088,000 603,167,000 487,156,000 521,137,000 551,187,000 544,751,000 -956,166,000 977,254,000 960,076,000 737,757,000 707,430,000 678,122,000 643,505,000 651,960,000 639,036,000  669,131,000 436,216,000 417,581,000 440,291,000 433,345,000 1,193,167,000 444,969,000 482,177,000 440,317,000 449,538,000 394,961,000 355,169,000 379,935,000 365,023,000 321,755,000 326,502,000 335,704,000 347,151,000 296,833,000 289,439,000 292,136,000 283,914,000 285,482,000 300,868,000 305,472,000 40,726,000 38,241,000 40,384,000 38,957,000 41,414,000 44,725,000 38,076,000 38,953,000 42,552,000  37,455,000 38,904,000  42,845,000 39,223,000 44,270,000 39,079,000 
      yoy
    43.85% 32.16% 31.32% 42.35% 14.80% 10.75% 16.25% 11.70% 8.59% 18.38% 15.87% 13.16% 5.21% -5.43% -12.07% -14.97% -10.77% 1.44% -8.73% -15.04% 16.51% -12.68% -5.82% 10.72% -150.95% -46.67% -42.59% -26.16% -235.16% 44.11% 49.19% 13.16% 10.70%  -3.83% 49.46% 53.03%  54.41% -63.44% -6.16% -8.69% -1.58% 165.42% 12.66% 35.76% 15.89% 23.15% 22.75% 8.78% 13.18% 5.15% 8.40% 12.81% 14.91% 22.27% 3.98% -3.80% -4.37% 597.13% 646.53% 645.02% 684.13% -1.66% -14.50% 6.06% 0.01% -2.67%  1.66% 0.13%   -4.51% -12.12%      
      qoq
    26.33% 2.65% -6.01% 18.03% 16.06% 2.00% 1.88% -4.81% 11.97% 7.06% -2.11% -7.47% 22.07% 4.79% -4.40% -13.96% 9.72% -2.57% -7.55% -9.71% 24.73% -12.34% -13.94% 23.81% -6.52% -5.45% 1.18% -156.97% -197.84% 1.79% 30.13% 4.29% 4.32% 5.38% -1.30% 2.02%   53.39% 4.46% -5.16% 1.60% -63.68% 168.15% -7.72% 9.51% -2.05% 13.82% 11.20% -6.52% 4.09% 13.45% -1.45% -2.74% -3.30% 16.95% 2.55% -0.92% 2.90% -0.55% -5.11% -1.51% 650.07% 6.50% -5.31% 3.66% -5.93% -7.40% 17.46% -2.25% -8.46%   -3.72%   9.23% -11.40% 13.28%  
      expenses:
                                                                                    
      compensation and employee benefits
    537,339,000 497,638,000 400,262,000 416,463,000 341,648,000 289,608,000 271,307,000 271,990,000 290,842,000 248,915,000 233,087,000 243,387,000 267,214,000 181,671,000 202,353,000 211,873,000 257,268,000 434,807,000 257,604,000 270,427,000 308,162,000 244,240,000 283,437,000 344,749,000 271,296,000 278,544,000 290,071,000 288,000,000 -569,170,000 517,865,000 524,030,000 454,099,000 437,491,000 410,112,000 415,697,000 418,621,000 409,183,000  432,176,000 270,642,000 264,318,000 275,299,000 264,018,000 765,679,000 289,392,000 316,097,000 288,669,000 308,029,000 246,869,000 216,298,000 253,879,000 208,969,000 179,600,000 179,871,000 207,558,000 271,688,000 187,232,000 181,479,000 180,591,000 175,837,000 190,208,000 177,739,000 176,921,000 14,256,000 27,983,000 16,022,000 15,046,000 14,166,000 12,919,000 13,616,000 12,372,000 13,858,000  12,890,000 13,051,000  9,768,000 8,241,000 9,790,000 9,239,000 
      equity-based compensation and allocations of net income to limited partnership units
    83,441,000                                                                                
      total compensation and employee benefits
    620,780,000 593,530,000 474,709,000 500,389,000 416,971,000 410,773,000 356,997,000 338,197,000 386,923,000 327,008,000 302,355,000 370,031,000 348,587,000 271,003,000 260,083,000 258,006,000 315,144,000 520,696,000 336,094,000 328,717,000 341,657,000 277,247,000 311,256,000 386,953,000 340,685,000 318,874,000 333,823,000 300,141,000 -609,709,000 585,784,000 630,575,000 504,336,000 500,684,000 470,376,000 474,468,000 459,596,000 442,107,000  458,376,000 323,158,000 286,720,000 306,622,000 269,007,000 811,763,000 296,830,000 321,116,000 288,725,000 309,938,000 252,849,000 216,298,000 253,879,000 218,169,000 191,920,000 185,695,000 212,721,000 271,688,000 190,967,000 183,206,000 186,781,000 180,916,000 190,208,000 181,754,000 184,306,000                  
      occupancy and equipment
    47,731,000 47,549,000 47,614,000 46,478,000 42,569,000 42,278,000 45,195,000 40,959,000 40,806,000 41,062,000 40,028,000 40,488,000 41,165,000 40,197,000 38,710,000 39,921,000 38,663,000 46,724,000 46,049,000 46,900,000 48,133,000 45,224,000 47,247,000 51,074,000 48,987,000 44,709,000 45,109,000 46,002,000 -15,811,000 58,193,000 52,428,000 49,296,000 49,863,000 53,822,000 46,513,000 49,511,000 50,002,000  63,108,000 35,575,000 35,701,000 40,921,000 37,908,000 37,340,000 39,227,000 40,018,000 40,010,000 39,092,000 36,229,000 34,118,000 29,943,000 29,286,000 28,982,000 28,161,000 28,249,000 28,128,000 27,015,000 27,653,000 27,522,000 25,824,000 26,723,000 25,686,000 28,775,000            7,409,000   8,383,000 8,191,000 7,571,000 
      fees to related parties
    8,073,000 10,191,000 9,346,000 10,409,000 8,350,000 9,054,000 8,251,000 8,009,000 7,215,000 9,172,000 7,046,000 7,991,000 8,440,000 7,377,000 6,551,000 6,009,000 5,725,000 8,456,000 5,674,000 4,452,000 5,291,000 7,610,000 5,194,000 5,435,000 2,858,000 7,123,000 6,457,000 2,927,000 -7,231,000 9,743,000 9,887,000 5,404,000 6,377,000 9,061,000 5,060,000 3,534,000 6,209,000  4,121,000 2,681,000 2,133,000 1,807,000 2,022,000 2,286,000 2,843,000 2,267,000 2,837,000 3,169,000 3,519,000 2,719,000 3,297,000 2,601,000 3,017,000 3,061,000 3,338,000 4,034,000 3,410,000 3,208,000 2,929,000 4,335,000 2,731,000 2,883,000 3,140,000                  
      professional and consulting fees
    16,920,000 17,269,000 18,303,000 15,796,000 15,669,000 17,701,000 20,184,000 12,805,000 14,259,000 16,144,000 13,734,000 14,819,000 15,701,000 24,286,000 15,048,000 13,810,000 15,631,000 14,813,000 16,836,000 17,820,000 16,140,000 15,637,000 19,805,000 19,956,000 27,553,000 21,262,000 23,347,000 20,005,000 -2,387,000 33,491,000 26,918,000 20,736,000 19,580,000 15,760,000 15,549,000 14,201,000 15,410,000  14,331,000 10,565,000 10,156,000 11,089,000 11,772,000 11,367,000 14,941,000 15,881,000 18,062,000 19,515,000 19,319,000 19,569,000 19,625,000 13,341,000 14,380,000 10,773,000 10,016,000 10,069,000 12,709,000 6,852,000 7,305,000 7,484,000 9,207,000 15,460,000 11,803,000 2,187,000 4,305,000 6,050,000 4,111,000 2,895,000 2,690,000 2,639,000 2,225,000 1,910,000  2,129,000 2,941,000  865,000 592,000 953,000 863,000 
      communications
    38,689,000 35,517,000 35,628,000 34,659,000 30,629,000 30,028,000 30,416,000 30,172,000 30,008,000 29,169,000 29,222,000 27,813,000 27,939,000 26,237,000 26,802,000 27,166,000 27,891,000 27,611,000 29,305,000 30,774,000 29,804,000 30,088,000 30,524,000 30,521,000 29,715,000 29,882,000 29,974,000 30,411,000 17,328,000 31,693,000 34,143,000 31,915,000 31,694,000 32,004,000 30,568,000 30,600,000 30,908,000  32,110,000 20,087,000 21,312,000 20,458,000 22,451,000 22,755,000 24,341,000 24,584,000 22,863,000 21,402,000 21,958,000 21,753,000 21,508,000 21,330,000 21,254,000 19,459,000 18,468,000 19,068,000 18,178,000 16,880,000 15,646,000 15,324,000 15,696,000 17,459,000                   
      selling and promotion
    29,131,000 30,525,000 26,461,000 28,810,000 19,441,000 18,605,000 17,376,000 17,714,000 16,771,000 17,009,000 14,939,000 15,320,000 14,616,000 14,461,000 11,373,000 12,443,000 10,938,000 12,356,000 9,586,000 8,616,000 7,488,000 5,943,000 6,634,000 18,699,000 21,432,000 20,320,000 21,491,000 18,402,000 -24,261,000 30,850,000 32,900,000 29,389,000 23,385,000 24,127,000 22,613,000 25,514,000 25,598,000  26,763,000 16,730,000 18,255,000 18,025,000 19,839,000 23,239,000 20,315,000 20,928,000 22,153,000 23,513,000 19,446,000 19,951,000 19,507,000 20,186,000 18,739,000 17,183,000 16,227,000 15,917,000 15,250,000 14,432,000 12,751,000 15,004,000 15,520,000 16,262,000 15,070,000                  
      commissions and floor brokerage
    21,656,000 18,737,000 17,340,000 16,690,000 17,492,000 18,453,000 17,539,000 17,414,000 17,392,000 15,342,000 14,755,000 16,161,000 15,265,000 13,591,000 13,104,000 14,239,000 17,343,000 16,563,000 15,908,000 14,308,000 17,929,000 12,933,000 13,520,000 19,277,000 16,377,000 15,831,000 16,791,000 14,618,000 16,791,000 15,382,000 15,623,000 10,203,000 10,170,000 10,280,000 8,493,000 10,097,000 9,043,000  10,473,000 4,806,000 5,575,000 4,206,000 5,075,000 6,397,000 5,771,000 5,545,000 5,675,000 5,833,000 5,680,000 6,311,000 6,539,000 6,095,000 5,688,000 4,564,000 4,916,000 4,887,000 4,702,000 4,084,000 4,075,000 3,675,000 11,284,000 3,418,000 6,185,000                  
      interest expense
    32,452,000 33,040,000 33,823,000 33,801,000 24,654,000 24,263,000 25,125,000 21,551,000 20,136,000 20,795,000 20,780,000 19,914,000 15,742,000 14,788,000 14,499,000 14,342,000 14,303,000 16,061,000 16,735,000 18,680,000 17,853,000 19,488,000 17,457,000 17,334,000 15,636,000 15,258,000 14,985,000 13,198,000 -46,318,000 33,472,000 27,441,000 16,676,000 14,821,000 14,172,000 15,383,000 14,624,000 13,458,000  18,439,000 9,197,000 9,230,000 9,335,000 9,164,000 9,989,000 9,700,000 9,991,000 9,758,000 7,578,000 7,558,000 8,689,000 6,754,000 4,395,000 3,777,000 3,796,000 3,596,000 2,911,000 2,535,000 2,476,000 2,512,000 2,397,000 5,442,000 2,217,000 3,628,000                  
      other expenses
    31,550,000 26,997,000 42,384,000 24,654,000 10,747,000 14,847,000 26,955,000 13,334,000 14,558,000 26,519,000 22,030,000 13,221,000 12,508,000 26,695,000 19,951,000 23,010,000 17,775,000 16,465,000 24,614,000 23,688,000 16,089,000 18,458,000 21,499,000 19,188,000 18,886,000 42,757,000 21,765,000 24,015,000 -140,295,000 69,706,000 66,307,000 30,759,000 27,988,000 17,664,000 19,709,000 23,684,000 22,811,000  27,179,000 26,732,000 13,584,000 16,582,000 13,444,000 59,780,000 17,304,000 13,084,000 26,622,000 15,048,000 9,491,000 14,939,000 23,365,000 25,081,000 7,038,000 27,436,000 20,652,000 4,389,000 8,584,000 22,593,000 10,990,000 7,630,000 9,347,000 17,603,000 3,391,000 4,227,000 3,002,000 3,372,000 2,433,000 2,439,000 2,441,000 1,888,000 1,915,000          
      total expenses
    846,982,000 813,355,000 705,608,000 711,686,000 586,522,000 586,002,000 548,038,000 500,155,000 548,068,000 502,220,000 464,889,000 525,758,000 499,963,000 438,635,000 406,121,000 408,946,000 463,413,000 679,745,000 500,801,000 493,955,000 500,384,000 432,628,000 473,136,000 568,437,000 522,129,000 516,016,000 513,742,000 469,719,000 -811,893,000 868,314,000 896,222,000 698,714,000 684,562,000 647,266,000 638,356,000 631,361,000 615,546,000  654,900,000 449,531,000 402,666,000 429,045,000 390,682,000 984,916,000 431,272,000 453,414,000 436,705,000 445,088,000 376,049,000 344,347,000 384,417,000 340,484,000 294,795,000 300,128,000 318,183,000 361,091,000 283,350,000 281,384,000 270,511,000 262,589,000 286,158,000 282,742,000 273,339,000              27,999,000 25,184,000 27,955,000 25,577,000 
      other income (losses), net:
                                                                                    
      gains on equity method investments
    4,585,000 1,301,000 2,290,000 2,379,000 2,358,000 1,536,000 2,360,000 2,744,000 1,790,000 2,584,000 2,094,000 2,412,000 2,062,000 2,158,000 3,230,000 2,729,000 2,803,000 2,101,000 1,816,000 1,323,000 1,466,000 1,527,000 1,119,000 1,023,000 1,064,000 1,530,000 738,000 783,000 -2,622,000 1,344,000 2,854,000 1,602,000 237,000 1,802,000 683,000 500,000 558,000  833,000                                          
      other income
    2,363,000 13,964,000 -35,000 581,000 -98,000 537,000 4,276,000 1,814,000 38,762,000 14,765,000 3,967,000 -1,011,000 -1,735,000 2,415,000 5,545,000 1,909,000 -496,000 7,922,000 4,513,000 1,864,000 5,406,000 4,779,000 1,129,000 -6,015,000 9,462,000 2,095,000 194,000 21,202,000 -91,440,000 108,776,000 -810,000 4,855,000 5,089,000 -1,169,000 91,653,000 10,012,000 -2,917,000  1,331,000 45,892,000                                         
      total other income (losses)
    6,948,000 81,983,000 2,255,000 2,960,000 2,260,000 40,842,000 6,636,000 4,558,000 40,552,000 17,349,000 6,061,000 1,401,000 327,000 3,727,000 8,592,000 4,638,000 2,307,000 322,904,000 6,421,000 3,155,000 6,872,000 6,297,000 2,248,000 -4,992,000 10,512,000 3,625,000 -687,000 42,039,000 -94,062,000 110,120,000 2,044,000 6,457,000 5,883,000 633,000 99,380,000 10,512,000 -2,359,000  3,058,000 43,252,000                                         
      income from operations before income taxes
    115,447,000 24,995,000 33,496,000 75,278,000 79,978,000 27,172,000 19,709,000 55,164,000 71,098,000 31,889,000 23,866,000 -31,277,000 33,231,000 1,607,000 19,038,000 31,448,000 45,358,000 104,750,000 -20,633,000 21,650,000 74,064,000 28,708,000 48,200,000 29,738,000    117,071,000 -238,335,000 219,060,000 65,898,000 45,500,000 28,751,000 31,489,000 104,529,000 31,111,000 21,131,000  17,289,000 29,937,000 14,915,000 11,246,000 42,663,000 208,251,000 13,697,000 28,763,000 3,612,000 4,450,000 18,912,000 10,822,000 -4,482,000 24,539,000                             
      provision for income taxes
    31,983,000 14,162,000 7,434,000 19,063,000 26,549,000 3,873,000 5,996,000 17,989,000 22,057,000 10,626,000 5,314,000 -9,067,000 12,061,000 -1,991,000 10,813,000 15,105,000 14,657,000 15,957,000 -6,692,000 -1,191,000 14,939,000 3,778,000 8,641,000 8,706,000 2,095,000 6,186,000 14,993,000 29,897,000 -32,307,000 56,756,000 15,908,000 16,547,000 6,659,000 14,601,000 30,263,000 10,548,000 4,840,000  2,272,000 18,808,000 3,600,000 744,000 10,675,000 78,711,000 3,095,000 10,329,000 2,623,000 70,000 7,202,000 3,905,000 -1,338,000 7,401,000 2,942,000 6,878,000 4,710,000 -2,987,000 6,390,000 3,310,000 6,944,000 7,031,000 -1,440,000 4,762,000 8,723,000     496,000 1,920,000 -306,000  1,391,000         
      consolidated net income
    83,464,000 10,833,000 26,062,000 56,215,000 53,429,000 23,299,000 13,713,000 37,175,000 49,041,000 21,263,000 18,552,000 -22,210,000 21,170,000 3,598,000 8,225,000 16,343,000 30,701,000 88,793,000 -13,941,000 22,841,000 59,125,000 24,930,000 39,559,000 21,032,000 -26,556,000 2,560,000 21,765,000 87,174,000 -29,859,000 162,304,000 49,990,000 28,953,000 22,092,000 16,888,000 74,266,000 20,563,000 16,291,000  15,017,000 11,129,000 11,315,000 10,502,000 31,988,000 129,540,000 10,602,000 18,434,000 989,000 4,380,000 11,710,000 6,917,000 -3,144,000 17,138,000 24,018,000 19,496,000 12,811,000 -10,953,000 7,093,000 4,745,000 14,681,000 14,294,000                     
      less: net income attributable to noncontrolling interest in subsidiaries
    -684,000 -3,538,000 -1,820,000 -1,330,000 -1,735,000 -1,904,000 -1,034,000 -653,000 -169,000 1,318,000 1,506,000 -2,506,000 2,192,000 1,382,000 2,463,000 1,581,000 4,729,000 12,340,000 -2,539,000 4,672,000 16,034,000 5,549,000 11,460,000 6,718,000     23,865,500 42,018,000 14,787,000 7,185,000 3,877,000 4,677,000 13,384,000 4,838,000 2,632,000  5,670,000 3,918,000 3,714,000 2,494,000 6,662,000 95,074,000 3,604,000 4,266,000 1,440,000 2,422,000 3,521,000 3,077,000 -1,111,000 8,472,000 12,267,000 13,272,000 5,413,000 -6,742,000 5,391,000 2,570,000 6,613,000 6,214,000                     
      net income available to common stockholders
    84,148,000 14,371,000 27,882,000 57,545,000 55,164,000 25,203,000 14,747,000 37,828,000 49,210,000 19,945,000 17,046,000 -19,704,000 18,978,000 2,216,000 5,762,000 14,762,000 25,972,000 76,453,000 -11,402,000 18,169,000 43,091,000 19,381,000 28,099,000 14,314,000 -16,243,000 -3,529,000 13,611,000 61,868,000 -16,743,000 120,286,000 35,203,000 21,768,000 18,215,000 12,211,000 60,882,000 15,725,000 13,659,000  9,347,000 7,211,000 7,601,000 8,008,000 25,326,000 34,466,000 6,998,000 14,168,000 -451,000 1,958,000 8,189,000 3,840,000 -2,033,000 8,666,000 11,751,000 6,224,000 7,398,000 -4,211,000 1,702,000 2,175,000 8,068,000 8,080,000 -13,000 6,853,000 11,984,000                  
      per share data
                                                                                    
      basic earnings per share
    0.17 0.03 0.06 0.11 0.11 0.06 0.03 0.08 0.1 0.04 0.03 -0.05 0.05  0.02 0.04 0.07 0.21 -0.03 0.05 0.12 0.05 0.08 0.04     0.168 0.36 0.11 0.08 0.06 0.04 0.22 0.06 0.05  0.04 0.03 0.03 0.04 0.12 0.2 0.04 0.09  0.01 0.06 0.02 -0.02 0.09 0.13 0.07 0.09 -0.05 0.02 0.03 0.1 0.1 -0.02 0.08 0.16  -0.41   0.02 0.07 -0.01  0.04  -0.03 0.03      
      net income attributable to common stockholders
    80,627 13,929 26,768 55,117 52,780 24,349 14,192 36,054 46,378 18,822 15,974                                                                      
      basic weighted-average shares of common stock outstanding
    474,199 476,364 474,642 480,138 479,166 473,390 473,435 475,272 470,517 426,436 468,544 391,745 375,220 371,561 371,108 375,613 368,323 379,215 387,121 384,902 374,318 363,244 360,614 358,001 344,332 346,060 341,272 338,403 322,141 327,932 321,199 286,840 283,399 277,073 278,601 275,997 273,780 243,460 244,862 220,388 220,770 220,608 219,174 171,758 163,225 144,886 146,703 140,368 136,124 116,132 124,279 97,326 88,294 91,225 84,473 82,873 80,350 79,891 78,929 80,561 105,771 82,432 75,194 50,825 50,466 50,455 50,448 50,423 50,214 50,176 50,142 50,077 51,349 51,281 53,141 54,978 56,153 55,345 55,291 55,056 
      fully diluted earnings per share
    0.17 0.03 0.06 0.11 0.11 0.05 0.03 0.08 0.1 0.04 0.03 -0.05 0.05 0.01 0.01 0.04 0.07 0.2 -0.03 0.05 0.11 0.05 0.07 0.04     0.16 0.35 0.1 0.07 0.06 0.04 0.21 0.06 0.05  0.04 0.03 0.03 0.04 0.11 0.18 0.04 0.09  0.01 0.06 0.02 -0.02 0.09 0.13 0.07 0.09 -0.05 0.058 0.03 0.1 0.1 -0.02 0.08 0.16                  
      net income for fully diluted shares
    80,659 13,928 26,774 55,136 52,806 24,353 14,194 36,070 46,417 18,836 15,989 -19,704 24,155 2,761 7,370 19,710 33,638 117,962 -11,402 26,023 62,248 29,575 40,436 20,259     77,730.5 171,720 50,445 33,094 27,610 18,012 92,121 25,359 22,203  13,256 10,749 11,105 11,558 40,600 69,944 13,546 27,398 -451 3,878 15,790 3,840 -2,033 20,834 28,734 15,979 19,567 -4,211 3,448 5,967 21,120 19,892 -13 16,446 30,069                  
      fully diluted weighted-average shares of common stock outstanding
    479,217 480,950 478,480 484,636 485,549 479,142 478,652 480,861 477,973 489,989 477,545 391,745 501,067 499,414 496,985 507,005 502,877 540,020 387,121 563,923 557,068 549,244 546,123 538,442 524,550 346,060 522,984 516,066 323,844 487,636 481,461 451,857 444,826 433,226 429,761 437,257 434,855 335,387 366,774 331,209 326,586 322,074 355,167 378,092 317,823 280,809 146,703 274,756 264,170 116,514 124,279 237,065 228,568 228,288 226,495 82,873 211,036 215,620 211,074 199,981 105,771  190,121                  
      equity-based compensation and allocations of net income to limited partnership units and fpus
     95,892,000 74,447,000 83,926,000 75,323,000 121,165,000 85,690,000 66,207,000 96,081,000 78,093,000 69,268,000 126,644,000 81,373,000 89,332,000 57,730,000 46,133,000 57,876,000 85,889,000 78,490,000 58,290,000 33,495,000 33,007,000 27,819,000 42,204,000 69,389,000 40,330,000 43,752,000 12,141,000                                                     
      gains on divestitures and sale of investments
                 -846,000 -183,000   312,881,000 92,000 -32,000     4,608,750  -1,619,000                                                      
      per share data:
                                                                                    
      data, software and post-trade
                27,122,000 25,063,000 23,808,000 23,391,000 24,127,000 24,137,000 22,238,000 21,602,000 21,986,000 21,523,000 20,139,000 19,398,000 18,151,000 18,364,000 18,741,000 17,910,000 18,169,000 16,547,000 15,370,000 13,322,000 13,087,000 17,710,000 11,834,000 12,448,000 12,317,000                                            
      other income (losses) , net:
                                                                                    
      gain on divestitures and sale of investments
                         -9,000                                                           
      interest income
                           4,161,000 2,865,000 3,976,000 7,813,000 3,665,000 -22,656,000 15,946,000 12,366,000 6,001,000 3,303,000 3,319,000 2,792,000 3,777,000 2,383,000  3,161,000 1,642,000 1,925,000 2,072,000 1,563,000 1,651,000 1,548,000 1,371,000 1,397,000 1,543,000 2,195,000 1,351,000 1,730,000 1,406,000 656,000 1,199,000 781,000 672,000 3,049,000 2,189,000 702,000 1,312,000 3,010,000 1,019,000 3,931,000 1,643,000 2,236,000 2,527,000 2,537,000 2,473,000 2,616,000 2,470,000 2,093,000 2,362,000  1,382,000 1,285,000  761,000 413,000 547,000  
      income from continuing operations before income taxes
                            40,643,750 8,746,000 36,758,000                          26,960,000 26,374,000 17,521,000 -13,940,000   21,625,000 21,325,000                     
      consolidated net income from continuing operations
                            -26,556,000 2,560,000 21,765,000 87,174,000                                                     
      consolidated net income from discontinued operations, net of tax
                                                                                    
      less: net income from continuing operations attributable to noncontrolling interest in subsidiaries
                            -10,313,000 6,089,000 8,154,000 25,306,000                                                     
      less: net income from discontinued operations attributable to noncontrolling interest in subsidiaries
                                                                                    
      basic earnings per share from continuing operations
                            -0.05 -0.01 0.04 0.18                                                     
      net income from continuing operations available to common stockholders
                            -16,243 -3,529 13,611 61,868                                                     
      fully diluted earnings per share from continuing operations
                            -0.05 -0.01 0.04 0.18                                                     
      net income from continuing operations for fully diluted shares
                            -24,847 -3,529 21,010 90,765                                                     
      gain on divestiture and sale of investments
                               20,054,000     557,000  7,044,000    894,000                                          
      gains from mortgage banking activities/originations
                                33,191,000 51,972,000 41,878,000                                                  
      real estate management and other services
                                76,470,000 101,881,000 107,121,000                                                  
      servicing fees
                                24,051,750 34,948,000 32,333,000                                                  
      allocations of net income and grant of exchangeability to limited partnership units and fpus
                                59,924,000 67,919,000 106,545,000 50,237,000 63,193,000 60,264,000 58,771,000 40,975,000 32,924,000  26,200,000 52,516,000 22,402,000 31,323,000                                       
      dividends declared per share of common stock
                                  0.18 0.18 0.16 0.16 0.16 0.16 0.14  0.14 0.12 0.12 0.12 0.12 0.12 0.12 0.12 0.17 0.17 0.17 0.17 0.17 0.14 0.14 0.14 0.14 0.06 0.08 0.09 0.09 0.09 0.04 0.1                   
      dividends declared and paid per share of common stock
                                  0.18 0.18 0.16 0.16 0.16 0.16 0.14  0.14 0.12 0.12 0.12 0.12 0.12 0.12 0.12 0.17 0.17 0.17 0.17 0.17 0.14 0.14 0.14 0.14 0.06 0.055 0.09 0.09  0.1                    
      real estate management services
                                   51,589,000 50,630,000 55,841,000 49,373,000 45,529,000 46,058,000  46,528,000 40,452,000 38,835,000 39,826,000 40,447,000 39,823,000 39,338,000 56,185,000 33,953,000 31,674,000                                 
      market data and software solutions
                                          27,693,000                                          
      market data
                                           1,660,000 1,492,000 1,634,000 1,178,000 3,643,000 4,125,000 4,182,000 4,166,000 3,990,000 4,964,000 4,042,000 4,556,000 4,576,000 4,869,000 4,614,000 4,444,000 4,387,000 4,265,000 4,824,000 4,402,000 4,462,000 3,917,000 4,842,000 5,101,000                  
      software solutions
                                           709,000 703,000 701,000 444,000 2,530,000 2,566,000 2,541,000 2,485,000 2,487,000 2,449,000 2,472,000 2,328,000 2,133,000 2,476,000 1,816,000 1,760,000 1,752,000 1,392,000 1,759,000 2,770,000 1,498,000 2,134,000 2,109,000 1,454,000                  
      losses on equity method investments
                                           -2,640,000 -1,288,000 -2,275,000                                       
      gain on divestiture
                                               723,147,000                                     
      losses on equity investments
                                              -2,705,000 -1,224,000 -3,288,000 -3,672,000 -2,995,000 -2,652,000 -2,456,000 -1,870,000 -1,675,000 -1,661,000 -1,890,000 -1,609,000 -1,692,000 -1,749,000 -2,945,000 -1,747,000 -1,852,000 -2,143,000                     
      allocations of net income to limited partnership units and founding/working partner units
                                              4,989,000 46,084,000 7,438,000 5,019,000 56,000 1,909,000 5,980,000   9,200,000 2,746,750 5,824,000                           
      allocation of net income to limited partnership units and founding/working partner units
                                                          5,163,000                          
      allocation of net income to limited partnership interests in bgc holdings
                                                                                    
      allocation of income to founding/working partner units
                                                            2,354,250 1,065,000 4,125,000 4,227,000                     
      allocation of income to reus
                                                            894,750 662,000 2,065,000 852,000                     
      income from continuing operations before income taxes and noncontrolling interest in subsidiaries
                                                            12,751,250 8,055,000                       
      other (losses) revenues
                                                                -1,062,750 -825,000 -2,216,000                  
      allocation of net income to founding/working partners units
                                                                2,712,250 3,716,000 7,133,000                  
      allocation of net income to reus
                                                                 299,000 252,000                  
      income from continuing operations before minority interest and income taxes
                                                                -676,000 18,126,000 32,133,000                  
      minority interest
                                                                777,000 6,511,000 11,426,000                  
      diluted weighted-average shares of common stock outstanding
                                                                 196,574  50,825 50,466 50,455 50,448 51,441 51,258 50,176 50,142 51,137 52,066 51,281 54,095 56,318 57,958 57,499 57,730 56,447 
      communicatons
                                                                  17,041,000                  
      transaction revenues:
                                                                                    
      fully electronic transactions with related parties
                                                                   13,506,000 15,630,000 16,150,000 15,721,000 16,440,000 16,101,000 14,598,000 15,704,000 15,681,000         
      fully electronic transactions with unrelated parties
                                                                    417,000 171,000 300,000 1,506,000 2,144,000 2,154,000 1,601,000 1,038,000         
      total fully electronic transactions
                                                                   13,506,000 16,047,000 16,321,000 16,021,000 17,946,000 18,245,000 16,752,000 17,305,000 16,719,000         
      voice-assisted brokerage transactions with related parties
                                                                   8,212,000 6,829,000 7,214,000 6,805,000 6,974,000 6,015,000 6,125,000 6,648,000 7,255,000         
      screen-assisted open outcry transactions with related parties
                                                                   2,313,000 1,736,000 2,349,000 2,070,000 1,732,000 1,413,000 1,398,000 1,438,000 1,426,000         
      total transaction revenues
                                                                   24,031,000 24,612,000 25,884,000 24,896,000 26,652,000 25,673,000 24,275,000 25,391,000 25,400,000         
      software solutions fees from related parties
                                                                   12,969,000 9,467,000 9,257,000 8,746,000 8,725,000 7,640,000 7,417,000 7,897,000 7,491,000  6,657,000 6,104,000  4,475,000 2,837,750 3,821,000 3,881,000 
      software solutions and licensing fees from unrelated parties
                                                                   2,083,000 1,926,000 2,716,000 2,778,000 3,564,000 5,696,000 3,914,000 3,572,000 3,799,000  3,765,000 4,177,000  3,107,000 1,665,500 2,321,000 2,209,000 
      occupancy and equipment:
                                                                                    
      amortization of software development costs and other intangible assets
                                                                   4,190,000 5,160,000 4,800,000 4,846,000 5,334,000             
      other occupancy and equipment
                                                                   10,091,000 10,151,000 8,510,000 9,029,000 9,377,000 8,871,000 8,130,000 11,646,000 8,633,000  7,536,000       
      administrative fees to related parties
                                                                   3,445,000 3,494,000 3,345,000 3,464,000 3,521,000 2,885,000 2,616,000 3,670,000 3,427,000  3,422,000 3,877,000  3,212,000 2,695,000 2,579,000 2,590,000 
      communications and client networks
                                                                   2,840,000 2,606,000 2,224,000 2,185,000 2,103,000 1,986,000 2,088,000 2,000,000 2,027,000  1,882,000 1,756,000  1,595,000 1,690,000 1,715,000 1,714,000 
      marketing
                                                                    218,000 244,000 230,000 226,000 110,000 145,000 265,000 332,000  369,000 493,000  379,000 339,000 373,000 408,000 
      total operating expenses
                                                                   41,236,000 59,002,000 49,665,000 49,061,000 40,061,000 39,555,000 38,886,000 39,720,000 39,141,000  39,862,000 36,801,000      
      income before income taxes
                                                                   -510,000 -20,761,000 -9,281,000 -10,104,000 1,353,000 5,170,000 -810,000 -767,000 3,411,000   2,103,000      
      income tax provision
                                                                   -55,000 243,000         -949,000 764,000  5,805,000 5,482,000 6,353,000 5,400,000 
      net income
                                                                   -455,000 -21,004,000 -6,005,000 -6,322,000 857,000 3,250,000 -504,000 -376,000 2,020,000  -1,458,000 1,339,000  9,041,000 8,557,000 9,962,000 8,102,000 
      yoy
                                                                   -153.09% -746.28% 1091.47% 1581.38% -57.57%  -65.43% -128.08%   -117.04% -86.56%      
      qoq
                                                                   -97.83% 249.78% -5.01% -837.69% -73.63% -744.84% 34.04% -118.61%   -208.89%   5.66% -14.10% 22.96%  
      net income margin %
    0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% NaN% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% -1.12% -54.93% -14.87% -16.23% 2.07% 7.27% -1.32% -0.97% 4.75% NaN% -3.89% 3.44% NaN% 21.10% 21.82% 22.50% 20.73% 
      basic income per share
                                                                   -0.01                 
      diluted income per share
                                                                   -0.01                 
      loss contingency
                                                                    875,000 3,500,000               
      acquisition related costs
                                                                    1,326,250 1,598,000 3,707,000       4,124,000       
      income tax benefit
                                                                     -3,276,000 -3,782,000    -391,000          
      basic loss per share
                                                                     -0.12 -0.13    -0.01          
      diluted loss per share
                                                                     -0.12 -0.13    -0.01          
      transaction revenues
                                                                                    
      impairment of long-lived assets
                                                                    747,000  4,010,000              
      insurance recovery from related parties
                                                                                    
      amortization of non-employee securities
                                                                                    
      diluted earnings per share
                                                                    -0.41   0.02 0.07 -0.01  0.04  -0.03 0.02      
      gain on sale of investments
                                                                                    
      amortization of software development costs and other intangibles
                                                                        4,563,750 5,738,000 5,627,000 6,890,000  4,504,000 4,666,000      
      amortization of business partner and non-employee securities
                                                                           19,000  143,000 117,000  142,000 452,000 648,000 362,000 
      acquisition-related costs
                                                                         2,026,000           
      insurance recovery
                                                                           3,500,000         
      other
                                                                           2,045,000  2,863,000 2,491,000  3,569,000 2,792,000 3,706,000 2,830,000 
      transaction revenues with related parties
                                                                                    
      fully electronic transactions
                                                                             18,804,000 20,437,000  29,154,000 20,587,000 32,300,000 27,538,000 
      voice-assisted brokerage transactions
                                                                             6,444,000 6,494,000  5,190,000 3,739,750 5,153,000 4,645,000 
      screen-assisted open outcry transactions
                                                                             403,000 407,000  158,000 105,000 128,000 243,000 
      total transaction revenues with related parties
                                                                             25,651,000 27,338,000  34,502,000 24,431,750 37,581,000 32,426,000 
      income before income tax provision
                                                                             -2,407,000   14,846,000 9,799,250 16,315,000 13,502,000 
      amortization of software development costs
                                                                                2,396,000    
      other occupancy and equipment costs
                                                                                6,073,000    
      earnings per share:
                                                                                    
      per share data:
                                                                                    
      basic
                                                                                0.16    
      diluted
                                                                                0.16    
      earnings per share:
                                                                                    
      basic
                                                                                 0.125 0.18 0.15 
      diluted
                                                                                 0.12 0.17 0.14 
      business interruption insurance proceeds from parent
                                                                                    
      interest income from related parties
                                                                                   563,000 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-09-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-06-30 2014-09-30 2014-06-30 2014-03-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-03-31 2011-12-31 2011-09-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2005-12-31 2005-06-30 2005-03-31 2004-12-31 2004-06-30 2003-12-31 2003-09-30 2003-06-30 
                                                                                
        assets
                                                                                
        cash and cash equivalents
      780,984,000 851,502,000 774,940,000 827,844,000 966,357,000 711,584,000 563,467,000 571,659,000 566,791,000 655,641,000 559,587,000 526,293,000 493,496,000 484,989,000 473,344,000 496,489,000 509,206,000 553,598,000 450,830,000 420,302,000 574,384,000 492,303,000 455,016,000 415,379,000 413,951,000 399,429,000 331,668,000 336,535,000 364,399,000 398,469,000 462,042,000 428,852,000 502,024,000 448,515,000 427,558,000 456,116,000 461,207,000 364,013,000 411,068,000 558,192,000 639,018,000 757,949,000 1,070,342,000 338,414,000 388,409,000 310,526,000 369,713,000 432,316,000 400,539,000 364,104,000 314,073,000 341,410,000 389,268,000 469,301,000 423,419,000 349,773,000 300,874,000 281,000 17,555,000 38,051,000 11,141,000 3,624,000 5,333,000 21,838,000 94,149,000 37,495,000 37,070,000 20,567,000 12,960,000 19,884,000   216,985,000  
        cash segregated under regulatory requirements
      22,120,000 22,171,000 24,256,000 14,235,000 19,409,000 21,689,000 20,033,000 14,486,000 18,317,000 17,255,000 16,407,000 16,314,000 16,424,000 17,021,000 12,517,000 12,652,000 14,380,000 13,201,000 19,059,000 36,365,000 257,512,000 244,230,000 202,346,000 220,735,000 223,529,000 216,690,000 196,448,000 80,243,000 150,427,000 164,879,000 119,470,000 94,118,000 6,895,000 6,911,000 16,495,000 5,751,000 3,199,000 8,435,000 9,965,000 15,821,000 15,573,000 8,562,000 6,570,000 3,019,000 3,392,000 3,372,000 2,968,000 3,336,000 3,112,000 2,398,000 2,855,000 2,547,000 2,651,000 2,200,000 2,199,000 2,185,000 2,437,000                  
        financial instruments owned, at fair value
      97,406,000 127,614,000 149,779,000 139,470,000 179,730,000 186,197,000 211,026,000 193,988,000 48,905,000 45,792,000 45,453,000 40,519,000 41,302,000 39,319,000 38,446,000                                                            
        receivables from broker-dealers, clearing organizations, customers and related broker-dealers
      1,832,901,000 468,035,000 1,899,691,000 951,387,000 1,279,425,000 365,490,000 1,172,822,000 1,062,588,000 1,517,757,000 350,036,000 1,175,253,000 1,262,933,000 1,852,062,000 559,680,000 2,196,110,000 2,359,053,000 2,379,937,000 782,446,000 1,818,893,000 1,455,333,000 1,822,549,000 1,140,121,000 2,302,726,000 551,445,000 3,469,098,000 2,273,726,000 2,007,606,000 941,866,000 2,770,378,000 1,731,288,000 1,647,686,000 1,678,145,000 497,557,000 1,763,834,000 2,022,920,000 1,704,582,000 812,240,000 1,119,812,000 1,001,541,000 812,844,000 1,383,984,000 1,192,754,000 1,431,962,000 1,192,519,000 297,688,000 598,610,000 192,053,000 748,850,000 569,200,000                          
        accrued commissions and other receivables
      612,506,000 482,013,000 526,319,000 526,742,000 401,539,000 324,213,000 362,036,000 358,657,000 348,228,000 305,793,000 320,521,000 320,516,000 330,544,000 288,471,000 296,994,000 308,881,000 341,658,000 296,423,000 322,250,000 338,313,000 854,761,000 689,045,000 820,887,000 778,415,000 535,553,000 602,279,000 596,126,000 516,091,000 885,597,000 798,848,000                                             
        loans, forgivable loans and other receivables from employees and partners
      470,048,000 436,082,000 479,716,000 468,259,000 404,569,000 360,060,000 398,223,000 394,527,000 396,107,000 367,805,000 348,484,000 325,823,000 352,719,000 319,612,000 313,827,000 304,138,000 296,185,000 286,967,000 375,982,000 370,800,000 419,638,000 401,633,000 339,259,000 315,590,000 266,920,000 259,400,000 240,283,000 216,868,000 466,919,000 409,553,000 299,595,000 278,959,000 267,527,000 254,000,000 247,922,000 228,008,000 158,176,000 174,843,000 143,282,000 154,891,000 137,566,000 127,390,000 124,798,000 212,870,000 220,098,000 198,183,000 192,658,000 179,760,000 164,674,000 151,328,000 147,593,000 138,213,000                       
        fixed assets
      181,034,000 182,080,000 192,579,000 189,526,000 189,474,000 190,012,000 188,193,000 182,887,000 176,786,000 178,300,000 176,399,000 182,624,000 181,059,000 183,478,000 182,079,000 181,942,000 186,456,000 190,112,000 199,349,000 204,531,000 211,233,000 218,654,000 203,015,000 204,841,000 195,380,000 179,324,000 169,599,000 157,169,000 216,131,000 210,462,000 175,737,000 167,385,000 165,867,000 155,340,000 148,018,000 145,378,000 145,873,000 147,261,000 114,367,000 116,645,000 119,745,000 131,263,000 132,203,000 139,548,000 141,109,000 135,568,000 136,068,000 129,233,000 133,291,000 133,428,000 136,248,000 134,379,000 136,859,000 132,966,000 134,120,000 133,760,000 135,433,000  60,627,000 61,257,000 60,680,000 53,064,000 57,483,000 57,207,000 56,732,000 56,412,000 58,291,000 56,849,000 54,380,000 50,605,000 44,012,000  28,563,000 26,038,000 
        investments
      48,376,000 37,765,000 38,963,000 43,573,000 41,644,000 39,267,000 43,208,000 40,954,000 40,233,000 38,314,000 35,718,000 40,031,000 38,810,000 38,575,000 36,295,000 37,507,000 36,108,000 33,039,000 30,782,000 33,400,000 40,004,000 40,169,000 38,966,000 40,349,000 35,969,000 36,661,000 36,708,000 35,403,000 164,892,000 167,759,000 35,122,000 33,397,000 33,439,000 42,709,000 42,117,000 41,111,000 33,813,000 33,233,000 18,554,000 21,065,000 15,522,000 19,436,000 21,727,000 23,168,000 25,556,000 34,283,000 20,367,000 21,783,000 23,998,000 25,107,000 19,987,000 21,018,000 22,134,000 23,173,000 25,451,000 26,513,000 25,287,000 859,000 26,944,000 9,415,000 8,700,000 9,012,000 7,802,000 7,780,000 7,776,000 7,787,000 7,742,000 12,504,000 12,673,000 12,709,000 12,355,000  11,476,000 11,402,000 
        goodwill
      646,569,000 648,616,000 649,076,000 625,648,000 540,666,000 540,290,000 505,555,000 505,426,000 506,548,000 506,344,000 500,797,000 503,374,000 502,017,000 486,585,000 487,021,000 487,214,000 487,751,000 486,919,000 486,885,000 487,434,000 556,392,000 553,688,000 552,001,000 553,745,000 552,427,000 560,284,000 560,181,000 504,646,000 979,627,000 946,855,000 884,753,000 882,735,000 863,690,000 830,246,000 816,156,000 814,105,000 811,766,000 933,579,000 244,805,000 184,237,000 171,415,000 163,702,000 163,684,000 163,474,000 164,874,000 142,179,000 141,142,000 81,651,000 83,085,000 82,853,000 87,133,000 76,663,000 76,802,000 77,118,000 75,851,000 75,726,000 63,500,000  12,184,000 12,184,000 12,184,000 12,184,000 12,184,000 12,184,000 12,184,000 12,184,000 12,184,000 11,968,000 11,968,000 11,949,000     
        other intangible assets
      420,432,000 427,950,000 435,536,000 445,771,000 235,957,000 240,910,000 197,400,000 201,823,000 206,355,000 211,285,000 196,532,000 200,461,000 204,553,000 192,783,000 196,550,000 200,237,000 204,110,000 207,747,000 212,048,000 219,291,000 281,571,000 291,339,000 302,424,000 303,224,000 308,500,000 310,751,000 319,101,000 298,779,000 293,980,000 298,109,000 316,049,000 329,095,000 247,723,000 219,059,000 223,758,000 228,493,000 233,967,000 337,189,000 24,747,000 17,219,000 17,741,000 19,379,000 20,644,000 19,854,000 20,320,000 16,299,000 16,994,000 11,528,000 12,952,000 13,603,000 11,651,000 12,297,000 13,083,000 13,912,000 14,451,000 15,456,000 16,240,000  5,523,000 5,578,000 5,984,000 5,981,000 6,203,000 6,949,000 8,479,000    14,922,000      
        receivables from related parties
      5,108,000 5,006,000 9,080,000 10,529,000 5,813,000 7,323,000 5,458,000 1,557,000 5,254,000 2,717,000 6,083,000 9,002,000 4,135,000 1,444,000 6,276,000 8,378,000 6,398,000 5,237,000 6,124,000 7,890,000 6,919,000 14,246,000 6,589,000 14,273,000 9,094,000 6,279,000 11,229,000 7,748,000 6,864,000 6,602,000 8,970,000 8,166,000 6,967,000 2,663,000 8,231,000 23,257,000 15,466,000 11,054,000 8,371,000 10,877,000 7,865,000 1,255,000 12,408,000 19,758,000 21,655,000 6,829,000 5,754,000 10,953,000 5,248,000 4,958,000 10,936,000 12,850,000 14,161,000 14,459,000 10,847,000 14,642,000 29,102,000 4,313,000       4,633,000 8,627,000    1,630,000     
        other assets
      741,326,000 723,155,000 645,216,000 649,058,000 619,893,000 604,932,000 564,306,000 550,643,000 544,371,000 496,655,000 477,024,000 453,797,000 467,150,000 463,014,000 431,627,000 450,955,000 441,178,000 445,233,000 452,841,000 461,379,000 485,837,000 450,007,000 447,156,000 446,371,000 464,018,000 472,138,000 485,792,000 246,937,000 406,188,000 381,641,000 301,879,000 294,837,000 287,141,000 318,922,000 319,420,000 311,037,000 290,687,000 376,467,000 187,615,000 198,634,000 206,134,000 118,195,000 118,954,000 109,491,000 101,536,000 92,531,000 87,655,000 85,640,000 72,284,000 68,705,000 72,775,000 57,307,000 50,987,000 65,789,000 54,399,000 54,549,000 58,161,000 2,223,000 19,242,000 12,716,000 13,862,000 12,732,000 12,286,000 13,725,000 13,231,000 15,831,000 8,581,000 8,144,000 8,373,000 7,455,000 2,687,000 2,707,000 6,776,000 3,817,000 
        total assets
      5,858,810,000 4,411,989,000 5,825,151,000 4,892,042,000 4,884,476,000 3,591,967,000 4,381,727,000 4,259,195,000 4,375,652,000 3,175,937,000 3,858,258,000 4,081,687,000 4,484,271,000 3,074,971,000 4,671,086,000 4,886,889,000 4,941,282,000 3,342,166,000 5,415,607,000 5,133,479,000 5,570,665,000 4,594,285,000 5,728,159,000 3,916,120,000 6,548,057,000 5,391,818,000 5,044,876,000 3,432,757,000 8,732,296,000 6,848,673,000 5,180,882,000 4,907,691,000 3,508,400,000 4,811,909,000 5,112,384,000 4,549,727,000 3,991,454,000 3,971,726,000 2,683,787,000 2,452,413,000 3,072,894,000 2,948,047,000 3,448,268,000 2,500,359,000 1,638,939,000 1,852,847,000 1,405,185,000 1,902,003,000 1,758,881,000 1,470,314,000 1,470,408,000 1,565,949,000 1,921,588,000 1,464,549,000 1,562,856,000 2,214,513,000 1,195,683,000 204,341,000 300,977,000 283,972,000 301,595,000 294,222,000 297,818,000 292,837,000 294,156,000 288,822,000 280,934,000 291,906,000 291,980,000 310,133,000 318,598,000 297,568,000 285,555,000 260,369,000 
        liabilities and equity
                                                                                
        liabilities
                                                                                
        short-term borrowings from related parties
       20,000,000       275,000,000                    80,000,000 130,000,000                                             
        accrued compensation
      352,814,000 364,016,000 307,258,000 309,565,000 189,222,000 227,869,000 187,378,000 194,020,000 169,930,000 206,364,000 174,476,000 177,114,000 176,629,000 176,781,000 180,906,000 187,381,000 203,156,000 214,379,000 169,183,000 187,166,000 202,918,000 212,561,000 234,826,000 215,085,000 216,062,000 205,405,000 196,318,000 195,234,000 545,004,000 471,329,000 345,425,000 303,981,000 333,144,000 332,976,000 322,196,000 290,839,000 303,959,000 318,086,000 231,578,000 201,907,000 200,862,000 182,546,000 273,870,000 143,630,000 125,793,000 138,536,000 143,800,000 157,360,000 164,610,000 155,538,000 182,704,000 171,036,000 180,083,000 143,283,000 150,613,000 150,957,000 128,108,000                  
        payables to broker-dealers, clearing organizations, customers and related broker-dealers
      1,634,704,000 306,364,000 1,715,473,000 777,209,000 1,113,821,000 225,377,000 998,528,000 880,404,000 1,339,095,000 202,266,000 1,002,912,000 1,066,948,000 1,675,926,000 404,675,000 2,012,127,000 2,173,291,000 2,205,427,000 656,278,000 1,662,463,000 1,305,743,000 1,676,985,000 988,329,000 2,178,000,000 416,566,000 3,299,451,000 2,107,383,000 1,805,004,000 769,833,000 2,505,198,000 1,516,934,000 1,488,148,000 1,519,638,000 375,152,000 1,613,337,000 1,857,733,000 1,601,927,000 714,823,000 977,635,000 944,009,000 742,800,000 1,335,502,000 1,189,500,000 1,424,751,000 1,112,473,000 254,289,000 530,051,000 144,683,000 690,871,000 682,174,000                          
        payables to related parties
      32,334,000 28,599,000 1,741,000 835,000 53,722,000 28,960,000 15,359,000 38,242,000 57,531,000 17,456,000 14,574,000 669,000 2,918,000 10,550,000 78,362,000 90,491,000 77,898,000 53,764,000 93,560,000 79,920,000 47,501,000 45,750,000 8,511,000 72,497,000 97,836,000 66,743,000 38,132,000 40,155,000 67,816,000 77,620,000 39,349,000 18,297,000 28,976,000 16,831,000 23,650,000 45,043,000 21,551,000 38,873,000 7,178,000 19,264,000 19,842,000 31,958,000 41,228,000 52,723,000 40,700,000 32,488,000 19,667,000 8,378,000 4,174,000 10,262,000 3,872,000 8,103,000 23,604,000 64,169,000 46,702,000 68,322,000 61,268,000 16,091,000       5,472,000 4,099,000   2,292,000 7,113,000     
        accounts payable, accrued and other liabilities
      790,047,000 771,963,000 821,873,000 777,915,000 696,120,000 692,982,000 694,736,000 657,389,000 664,264,000 668,189,000 627,194,000 623,803,000 688,801,000 683,104,000 619,367,000 632,825,000 637,678,000 679,254,000 627,994,000 652,366,000 1,435,951,000 1,197,615,000 1,191,856,000 1,283,046,000 985,413,000 1,055,082,000 1,058,877,000 754,819,000 1,067,516,000 1,022,681,000 900,841,000 817,595,000 599,046,000 636,188,000 568,623,000 546,533,000 692,639,000 567,863,000 383,840,000 373,869,000 359,825,000 312,557,000 446,619,000 254,255,000 260,462,000 248,270,000 250,552,000 240,264,000 273,883,000 256,023,000 238,261,000 222,221,000 278,427,000 256,452,000 200,728,000 185,601,000 169,744,000                  
        notes payable and other borrowings
      1,776,913,000 1,775,705,000 1,837,085,000 1,917,835,000 1,688,640,000 1,337,540,000 1,440,706,000 1,440,689,000 944,961,000 1,183,506,000 1,183,443,000 1,394,006,000 1,121,588,000 1,049,217,000 1,050,132,000 1,051,044,000 1,051,941,000 1,052,831,000 1,352,531,000 1,243,248,000 1,313,295,000 1,318,490,000 1,368,221,000 1,142,687,000 1,105,498,000 1,062,221,000 1,008,231,000 763,548,000 1,323,030,000 1,289,269,000                                             
        total liabilities
      4,586,812,000 3,266,647,000 4,683,430,000 3,783,359,000 3,741,525,000 2,512,728,000 3,338,669,000 3,217,325,000 3,450,781,000 2,277,781,000 3,002,599,000 3,262,540,000 3,667,830,000 2,326,244,000 3,943,757,000 4,139,750,000 4,187,832,000 2,660,090,000 4,711,771,000 4,324,552,000 4,680,254,000 3,768,380,000 4,988,746,000 3,148,745,000 5,723,958,000 4,515,443,000 4,141,090,000 2,544,877,000 6,791,867,000 5,134,203,000 4,009,977,000 3,715,059,000 2,302,085,000 3,568,443,000 3,904,428,000 3,324,811,000 2,691,739,000 2,841,449,000 1,981,937,000 1,750,671,000 2,325,854,000 2,139,551,000 2,610,273,000 2,009,583,000 1,132,688,000 1,347,642,000 904,218,000 1,436,802,000 1,314,544,000 1,045,272,000 1,050,777,000 1,154,553,000 1,528,224,000 1,026,651,000 1,117,704,000 1,762,587,000 747,782,000 16,091,000 65,852,000 50,101,000 57,433,000 44,756,000 40,966,000 37,662,000 43,225,000 38,102,000 34,830,000 39,395,000 31,217,000 39,919,000 23,839,000 25,883,000 30,435,000 22,824,000 
        commitments, contingencies and guarantees
                                                                                
        equity
                                                                                
        stockholders’ equity:
                                                                                
        class a common stock, par value 0.01 per share...
      4,513,000 4,449,000 4,402,000 4,364,000 4,314,000 4,244,000 4,189,000 4,153,000 4,103,000 4,036,000 3,972,000 5,086,000 4,878,000 4,719,000 4,643,000 4,518,000 4,455,000 4,359,000 4,260,000 4,169,000 3,858,000 3,658,000 3,616,000 3,584,000 3,528,000 3,484,000 3,439,000 3,417,000 3,438,000 3,410,000 2,997,000 2,967,000 2,925,000 2,895,000 2,861,000 2,807,000 2,559,000 2,497,000 2,170,000 2,120,000 2,091,000 1,980,000 1,544,000 1,489,000 1,419,000 1,228,000 1,152,000 1,102,000 923,000 881,000 858,000 814,000 724,000 707,000 695,000 649,000 617,000  380,000 368,000 365,000 365,000 364,000 364,000 362,000        303,000 300,000 
        class b common stock, par value 0.01 per share...
      1,095,000 1,095,000 1,095,000 1,095,000 1,095,000 1,095,000 1,095,000 1,095,000 1,095,000 1,095,000 1,095,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 459,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 348,000 258,000 258,000 258,000 258,000 264,000 264,000 264,000 291,000 301,000  195,000 205,000 205,000 205,000 205,000 205,000 205,000 211,000       254,000 254,000 
        additional paid-in capital
      2,587,661,000 2,532,497,000 2,460,423,000 2,403,039,000 2,348,207,000 2,311,104,000 2,223,773,000 2,166,717,000 2,162,454,000 2,105,130,000 2,059,436,000 2,667,812,000 2,604,259,000 2,559,418,000 2,527,199,000 2,499,393,000 2,481,408,000 2,451,135,000 2,421,098,000 2,367,458,000 2,365,750,000 2,317,706,000 2,293,065,000 2,271,947,000 2,243,889,000 2,228,854,000 2,210,033,000 2,208,221,000 2,116,514,000 2,104,898,000 1,520,627,000 1,495,859,000 1,466,586,000 1,448,601,000 1,413,245,000 1,380,354,000 1,109,000,000 1,018,902,000 801,494,000 772,501,000 762,809,000 729,184,000 717,066,000 583,791,000 575,381,000 515,127,000 489,369,000 478,205,000 393,184,000 366,827,000 348,010,000 328,147,000 295,996,000 292,881,000 288,345,000 269,443,000 269,641,000  314,955,000 313,238,000 302,555,000 301,741,000 300,732,000 299,682,000 299,943,000 298,274,000 294,987,000 294,635,000 294,281,000 294,115,000 290,420,000 287,593,000 280,040,000 273,028,000 
        treasury stock
      -617,013,000 -614,526,000 -545,663,000 -503,751,000 -355,084,000 -331,728,000 -281,476,000 -217,097,000 -137,455,000 -67,414,000 -40,335,000 -753,331,000 -715,081,000 -711,454,000 -690,633,000 -648,500,000 -623,734,000 -623,734,000 -513,963,000 -406,701,000 -318,864,000 -315,313,000 -315,308,000 -315,308,000 -315,308,000 -315,210,000 -315,210,000 -314,240,000 -313,427,000 -312,909,000 -297,378,000 -293,555,000 -288,743,000 -277,443,000 -267,703,000 -261,832,000 -212,331,000 -206,767,000 -179,506,000 -157,821,000 -136,238,000 -114,397,000 -110,219,000 -110,090,000 -110,090,000 -110,090,000 -109,870,000 -109,753,000 -109,682,000 -109,627,000 -109,603,000 -107,127,000 -103,127,000 -89,756,000 -89,756,000 -89,756,000 -88,540,000  -62,597,000 -62,597,000 -62,597,000 -62,597,000 -62,597,000 -62,597,000 -62,132,000 -62,132,000 -62,486,000 -53,409,000 -45,582,000 -33,972,000 -2,094,000 -2,094,000 -2,094,000 -2,094,000 
        retained deficit
      -835,965,000 -910,391,000 -915,108,000 -933,214,000 -981,052,000 -1,026,359,000 -1,041,840,000 -1,046,827,000 -1,074,819,000 -1,119,182,000 -1,134,204,000 -1,146,350,000 -1,122,827,000 -1,138,066,000 -1,136,566,000 -1,138,628,000 -1,149,657,000 -1,171,919,000 -1,244,718,000 -1,211,870,000 -1,226,187,000 -1,237,657,000 -1,277,956,000 -1,241,754,000 -1,176,741,000 -1,124,860,000 -1,090,585,000 -1,105,019,000 -798,717,000 -860,107,000 -415,053,000 -385,435,000 -358,526,000 -309,544,000 -326,018,000 -297,816,000 -273,492,000 -306,513,000 -223,901,000 -204,812,000 -186,291,000 -146,218,000 -145,835,000 -160,066,000 -147,452,000 -96,122,000 -80,726,000 -62,518,000 -28,721,000 -23,616,000 -22,125,000 -15,610,000 -11,390,000                      
        accumulated other comprehensive income
      -40,418,000 -40,641,000 -39,832,000 -41,071,000 -53,696,000 -59,849,000 -45,634,000 -49,908,000 -43,270,000 -38,582,000 -45,819,000 -41,128,000 -43,522,000 -45,431,000 -53,083,000 -46,456,000 -37,123,000 -40,548,000 -36,232,000 -30,605,000 -32,284,000 -39,405,000 -44,082,000 -33,102,000 -33,652,000 -26,390,000 -23,553,000 -24,465,000 -21,553,000 -19,374,000 -13,001,000 -17,774,000 -23,199,000 -19,976,000 -20,743,000 -19,073,000 -25,056,000 -16,252,000 6,196,000                532,000       24,000             
        total stockholders’ equity
      1,099,873,000 972,483,000 965,317,000 930,462,000 963,784,000 898,507,000 860,107,000 858,133,000 912,108,000 885,083,000 844,145,000 732,548,000 728,166,000 669,645,000 652,019,000 670,786,000 675,808,000 619,752,000 630,904,000 722,910,000 792,732,000 729,448,000 659,794,000 685,826,000 722,175,000 766,337,000 784,583,000 768,373,000 1,022,337,000 952,618,000 836,856,000 844,882,000 841,863,000 889,554,000 846,405,000 854,703,000 651,123,000 546,696,000 430,284,000 415,722,000 448,623,000 481,226,000 471,850,000 329,423,000 334,292,000 327,932,000 316,654,000 305,424,000 258,913,000 236,917,000 221,544,000 201,570,000 181,117,000 201,889,000 202,769,000 197,271,000 188,649,000  235,125,000 233,871,000 244,162,000 249,466,000 256,852,000 255,175,000           
        noncontrolling interest in subsidiaries
      172,125,000 172,859,000 176,404,000 178,221,000 179,167,000 180,732,000 182,951,000 183,737,000 12,763,000 13,073,000 11,514,000 86,599,000 72,852,000 63,563,000 59,325,000 59,907,000 59,856,000 43,563,000 54,261,000 66,435,000 77,690,000 73,177,000 56,162,000 57,911,000 77,364,000 85,109,000 94,063,000 94,801,000 867,822,000 714,736,000 282,574,000 295,917,000 311,875,000 297,471,000 306,089,000 314,764,000 591,447,000 179,267,000 210,533,000 217,954,000 231,420,000 249,435,000 286,771,000 82,462,000 93,120,000 95,194,000 98,044,000 72,465,000 88,513,000 94,939,000 106,154,000 113,336,000 110,689,000 132,189,000 138,466,000 143,715,000 146,393,000                  
        total equity
      1,271,998,000 1,145,342,000 1,141,721,000 1,108,683,000 1,142,951,000 1,079,239,000 1,043,058,000 1,041,870,000 924,871,000 898,156,000 855,659,000 819,147,000 801,018,000 733,208,000 711,344,000 730,693,000 735,664,000 663,315,000 685,165,000 789,345,000 870,422,000 802,625,000 715,956,000 743,737,000 799,539,000 851,446,000 878,646,000 863,174,000 1,890,159,000 1,667,354,000 1,119,430,000 1,140,799,000 1,153,738,000 1,187,025,000 1,152,494,000 1,169,467,000 1,242,570,000 725,963,000 640,817,000 633,676,000 680,043,000 730,661,000 758,621,000 411,885,000 427,412,000 423,126,000 414,698,000 377,889,000 347,426,000 331,856,000 327,698,000 314,906,000 291,806,000 334,078,000 341,235,000 340,986,000 335,042,000                  
        total liabilities and equity
      5,858,810,000 4,411,989,000 5,825,151,000 4,892,042,000                                                                       
        liabilities, redeemable partnership interest, and equity
                                                                                
        total liabilities, redeemable partnership interest, and equity
          4,884,476,000 3,591,967,000 4,381,727,000 4,259,195,000 4,375,652,000 3,175,937,000 3,858,258,000 4,081,687,000 4,484,271,000 3,074,971,000 4,671,086,000 4,886,889,000 4,941,282,000 3,342,166,000 5,415,607,000 5,133,479,000 5,570,665,000 4,594,285,000 5,728,159,000 3,916,120,000 6,548,057,000 5,391,818,000 5,044,876,000 3,432,757,000 8,732,296,000 6,848,673,000 5,180,882,000 4,907,691,000 3,508,400,000 4,811,909,000 5,112,384,000  3,991,454,000  2,683,787,000 2,452,413,000 3,072,894,000 2,948,047,000 3,448,268,000 2,500,359,000 1,638,939,000 1,852,847,000 1,405,185,000 1,902,003,000 1,758,881,000 1,470,314,000 1,470,408,000 1,565,949,000 1,921,588,000 1,464,549,000 1,562,856,000 2,214,513,000 1,195,683,000                  
        loan receivable from related parties
            150,000,000 180,000,000                                                                   
        repurchase agreements
            1,962,000 6,581,000       1,013,000 900,000 7,511,000  2,997,000  94,000 2,089,000 512,000  1,895,000 1,100,000 4,327,000 986,000 198,000 3,108,000  4,869,000                                           
        short-term borrowings
                  1,968,000 1,917,000 1,850,000 3,818,000 4,221,000 3,584,000 3,677,000 5,997,000 3,510,000 3,546,000 3,847,000 4,962,000 4,803,000 5,219,000 5,133,000 5,162,000 4,995,000 5,187,000 150,000,000               60,000,000 13,600,000                            
        redeemable partnership interest
                  15,423,000 15,519,000 15,985,000 16,446,000 17,786,000 18,761,000 18,671,000 19,582,000 19,989,000 23,280,000 23,457,000 23,638,000 24,560,000 24,929,000 25,140,000 24,706,000 50,270,000 47,116,000 51,475,000 51,833,000 52,577,000 56,441,000 55,462,000 55,449,000 57,145,000 58,976,000 61,033,000 68,066,000 66,997,000 77,835,000 79,374,000 78,891,000 78,839,000 82,079,000 86,269,000 87,312,000 96,911,000 93,186,000 91,933,000 96,490,000 101,558,000 103,820,000 103,917,000 110,940,000 112,859,000                  
        reverse repurchase agreements
                 200,000,000                     54,659,000          49,063,000      49,999,000      47,059,000                    
        securities owned
                     39,150,000 37,513,000 40,838,000 37,430,000 49,222,000 59,527,000 58,547,000 57,529,000 57,525,000 60,398,000 62,085,000 60,146,000 58,408,000 75,911,000 57,414,000 33,743,000 34,088,000 35,357,000 212,056,000 318,580,000 32,767,000 32,361,000 32,467,000 36,928,000 35,779,000 36,541,000 32,153,000 32,016,000 32,150,000 32,003,000 38,235,000 16,282,000 16,473,000 11,019,000 11,096,000 3,144,000 1,587,000 2,124,000  1,443,000 627,654,000 4,801,000                  
        marketable securities
                     293,000 402,000 406,000 348,000 360,000 338,000 303,000 245,000 14,228,000 13,220,000 12,772,000 29,989,000 32,064,000 152,485,000 78,109,000 169,241,000 163,208,000 164,820,000 179,904,000 152,995,000 191,697,000 650,400,000 48,278,000 176,679,000 50,260,000 41,653,000 36,935,000    291,000 1,238,000 2,279,000 3,278,000 4,600,000 4,231,000 3,693,000 1,534,000 1,510,000 1,565,000 1,498,000 1,106,000   2,353,000 2,393,000 2,357,000 2,209,000            
        assets held for sale
                        1,002,786,000 1,048,859,000                                                       
        liabilities held for sale
                        799,366,000 850,112,000                                                       
        securities loaned
                            2,973,000 13,902,000 13,000,000 12,290,000 25,068,000 15,140,000 66,318,000 77,504,000 95,327,000 87,293,000     117,890,000 47,792,000                                     
        assets from discontinued operations
                                                                                
        liabilities from discontinued operations
                                                                                
        contingent class a common stock
                                  35,734,000 36,352,000 38,316,000 42,472,000 42,472,000 44,673,000 44,415,000 49,915,000 50,095,000 54,481,000 23,483,000 9,367,000 11,713,000 15,791,000 15,791,000 18,868,000 18,868,000 19,763,000 20,133,000 3,171,000 3,171,000 3,171,000 4,806,000                        
        restricted cash
                                  260,592,000 258,677,000                                             
        loans held for sale, at fair value
                                  1,132,665,000 547,968,000                                             
        mortgage servicing rights
                                  405,241,000 392,040,000                                             
        warehouse notes payable
                                  1,131,792,000 540,571,000                                             
        accrued commissions receivable
                                    576,595,000 514,706,000 374,734,000 377,750,000 368,214,000 367,425,000 342,299,000 384,858,000 299,059,000 275,949,000 277,402,000 268,634,000 263,897,000 246,094,000 222,299,000 233,087,000 222,293,000 177,221,000 173,770,000 132,885,000 150,100,000 140,917,000 145,819,000 108,495,000 123,670,000 127,477,000 129,628,000                  
        loan receivables from related parties
                                    150,000,000                 980,000 980,000 980,000 980,000 980,000 980,000 980,000 980,000 980,000 980,000                  
        notes payable and collateralized borrowings
                                    990,887,000 963,386,000 965,767,000 969,111,000 1,132,226,000 838,635,000 840,877,000 841,200,000 260,348,000 259,148,000 257,957,000 272,990,000 273,805,000 296,502,000 301,444,000 188,297,000 181,916,000 336,671,000 185,560,000 189,258,000 177,052,000 164,672,000 166,144,000 167,586,000 169,000,000                    
        commitments and contingencies
                                                                                
        securities sold, not yet purchased
                                         1,834,000   4,984,000 3,683,000 1,866,000        61,000    39,000 11,000 2,121,000  1,151,000                  
        total liabilities, redeemable partnership and noncontrolling interests, and equity
                                         4,549,727,000  3,971,726,000                                     
        securities borrowed
                                           237,000 6,806,000  2,735,000 70,440,000    17,362,000   51,452,000  81,401,000 32,926,000 35,035,000   54,116,000 23,734,000                  
        notes payable to related parties
                                            150,000,000 150,000,000 150,000,000 150,000,000 150,000,000 150,000,000 150,000,000 150,000,000 150,000,000                            
        liabilities, redeemable partnership and noncontrolling interests, and equity
                                                                                
        short term borrowings
                                           50,000,000                                     
        redeemable noncontrolling interests
                                           345,338,000                                     
        accumulated other comprehensive loss
                                             -5,981,000 -5,809,000 -5,462,000 -6,845,000 -4,917,000 -4,182,000 -2,322,000 -3,752,000 -5,131,000 -220,000 -977,000 -660,000 -4,912,000 -1,350,000 -36,000  -1,462,000 -3,408,000   -61,000 -88,000  -20,000            
        notes receivable
                                                   25,492,000                             
        deferred revenue
                                                     3,258,000 4,082,000 4,714,000 6,722,000 8,235,000 9,162,000 9,805,000 11,252,000 12,107,000 12,896,000  18,674,000 6,852,000 7,069,000 7,477,000             
        receivables from brokers, dealers, clearing organizations, customers and related broker-dealers
                                                       474,269,000 427,301,000 589,162,000 894,692,000 413,980,000 545,947,000 600,850,000 250,755,000                  
        liabilities, redeemable partnership interest, and total equity
                                                                                
        payables to brokers, dealers, clearing organizations, customers and related broker-dealers
                                                       429,477,000 442,166,000 580,286,000 870,765,000 385,345,000 537,288,000 1,195,600,000 224,615,000                  
        forgivable loans and other receivables from employees and partners
                                                          135,459,000 138,113,000 98,329,000 103,263,000 90,634,000                  
        reverse repurchase agreements with related parties
                                                            3,126,000 26,071,000 63,011,000  1,240,000 59,806,000 92,326,000 184,897,000 187,231,000 166,009,000 96,972,000 140,666,000 141,365,000 161,592,000 176,704,000 189,804,000 205,483,000   195,074,000 
        securities owned:
                                                                                
        securities pledged as collateral
                                                                                
        securities unencumbered
                                                           2,553,000                     
        retained (deficit) earnings
                                                           -2,171,000                     
        retained earnings
                                                            2,689,000 18,106,000 10,038,000   -17,282,000 3,722,000 9,728,000 18,168,000 17,521,000 14,273,000 14,775,000 14,631,000 12,468,000 13,927,000 12,587,000 6,476,000    
        notes payable
                                                             150,000,000                   
        long-term debt
                                                              150,000,000                  
        secured loan receivable from related party
                                                                 65,000,000 80,000,000              
        investments in subsidiaries
                                                               196,665,000                 
        liabilities and stockholders’ equity
                                                                                
        total stockholders’ and members’ equity
                                                               188,250,000                 
        total liabilities and stockholders’ equity
                                                               204,341,000 300,977,000 283,972,000 301,595,000 294,222,000 297,818,000 292,837,000           
        total cash and cash equivalents
                                                                18,795,000 97,857,000 103,467,000 188,521,000 192,564,000 187,847,000 191,121,000 178,161,000 178,435,000 182,159,000 189,664,000 209,688,000 239,598,000   198,648,000 
        loan receivable from related party
                                                                115,000,000                
        securities owned, at fair value
                                                                2,267,000                
        receivable from related parties
                                                                40,395,000 17,612,000 14,325,000 10,371,000 7,087,000 7,145,000   4,345,000 6,061,000   1,125,000 1,518,000 2,467,000 817,000 
        current liabilities:
                                                                                
        payable to related parties
                                                                11,838,000 10,154,000 9,457,000 6,666,000 10,105,000 7,751,000   7,588,000 4,447,000   3,557,000 6,323,000 3,546,000 3,153,000 
        accounts payable and accrued liabilities
                                                                35,340,000 33,095,000 40,907,000 30,613,000 26,890,000 25,836,000 30,473,000 26,619,000 19,649,000 27,146,000 21,019,000 24,795,000 20,282,000 19,560,000 26,889,000 19,671,000 
        total current liabilities
                                                                47,178,000 43,249,000 50,364,000 37,279,000 36,995,000 33,587,000 35,945,000 30,718,000 27,237,000 31,593,000 23,311,000 31,908,000     
        accumulated deficit
                                                                -17,808,000             -13,263,000 -21,820,000 -31,782,000 
        deferred income
                                                                    3,971,000 4,075,000 7,280,000 7,384,000 7,593,000 7,802,000 7,906,000 8,011,000     
        unearned stock-based compensation
                                                                      -1,720,000 -763,000 -1,592,000  -2,427,000 -3,080,000     
        liabilities and stockholders' equity
                                                                                
        stockholders' equity:
                                                                                
        total stockholders' equity
                                                                      250,931,000 250,720,000 246,104,000 252,511,000 260,763,000 270,214,000 294,759,000 271,685,000 255,120,000 237,545,000 
        total liabilities and stockholders' equity
                                                                      294,156,000 288,822,000 280,934,000 291,906,000 291,980,000 310,133,000 318,598,000 297,568,000 285,555,000 260,369,000 
        other intangibles
                                                                       9,820,000 11,356,000   16,097,000     
        authorized; 35,541,521 and 34,387,380 shares issued at june 30, 2006
                                                                                
        and december 31, 2005, respectively
                                                                       355,000         
        class a common stock
                                                                        343,000 343,000 343,000 343,000 324,000 310,000   
        class b common stock
                                                                        221,000 221,000 221,000 221,000 239,000 251,000   
        intangible assets
                                                                         14,221,000   18,821,000 18,927,000 19,288,000 19,647,000 
        preferred stock, par value 0.01 per share...
                                                                             80,000 80,000 80,000 
        unearned stock based compensation
                                                                         -1,747,000       
        liabilities:
                                                                                
        cash & cash equivalents
                                                                            34,115,000    
        unamortized expense of business partner and non-employee securities
                                                                            -606,000 -1,192,000 -1,643,000 -2,241,000 
        cash and cash equivalents.
                                                                             228,500,000   
        fixed assets, net.
                                                                             34,467,000   
        investments.
                                                                             11,449,000   
        cash
                                                                               3,574,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-03-31 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2014-09-30 2014-06-30 2014-03-31 2013-09-30 2013-06-30 2013-03-31 2012-03-31 2011-12-31 2011-03-31 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2007-12-31 2007-03-31 2005-06-30 2005-03-31 2003-12-31 2003-09-30 
                                                               
          cash flows from operating activities:
                                                               
          consolidated net income
        83,464,000 10,833,000 26,062,000 56,215,000 53,429,000 23,299,000 13,713,000 37,175,000 49,041,000 21,263,000 18,552,000 -22,210,000 21,170,000 3,598,000 8,225,000 16,343,000 30,701,000 88,793,000 -17,271,000 22,841,000 59,125,000 21,032,000    162,304,000 28,953,000 22,092,000 16,888,000 74,266,000 20,563,000 16,291,000 11,129,000 11,315,000 10,502,000 31,988,000 129,540,000 10,602,000 11,710,000 6,917,000 17,138,000 12,811,000 -10,953,000 7,093,000 4,745,000 14,681,000 14,294,000         
          adjustments to reconcile consolidated net income to net cash from operating activities:
                                                               
          fixed asset depreciation and intangible asset amortization
        25,756,000 28,119,000 27,441,000 25,879,000 21,870,000 20,689,000 19,895,000 20,214,000 20,636,000 20,300,000 21,864,000 19,194,000 19,059,000 19,268,000 18,632,000 18,755,000 18,399,000 18,324,000 20,640,000 21,255,000 21,655,000 21,923,000    22,636,000 21,319,000 19,388,000 19,033,000 18,413,000 18,984,000 19,468,000 11,163,000 10,789,000 10,819,000 10,666,000 12,284,000 12,569,000 12,515,000 13,078,000 12,144,000 12,793,000 12,744,000 13,504,000 13,185,000 13,207,000 13,078,000 13,717,000 14,593,000       
          employee loan amortization and reserves on employee loans
        22,475,000 79,233,000 24,873,000 18,859,000 17,349,000 14,661,000 15,429,000 14,555,000 14,768,000 15,668,000 10,178,000 11,567,000 13,900,000 14,450,000 10,696,000 14,493,000 9,894,000 171,909,000 11,059,000 19,126,000 15,561,000 14,551,000    6,945,000 8,717,000 7,168,000 11,143,000 23,659,000 10,538,000 10,459,000 7,133,000 7,194,000 7,090,000                     
          equity-based compensation and allocations of net income to limited partnership units
        83,441,000                                                       
          deferred compensation expense
        775,000 233,000 243,000 227,000 59,000 14,000 10,000 11,000 16,000 16,000 18,000 9,000 11,000 -617,000 13,000 32,000 30,000 26,000 32,000 161,000 128,000 187,000    1,330,000 2,431,000 3,777,000 2,687,000 3,507,000 3,838,000 5,942,000                        
          losses on equity method investments
        -4,585,000 -1,301,000 -2,290,000 -2,379,000 -2,358,000 -1,536,000 -2,360,000 -2,732,000 -1,802,000 -2,584,000 -2,094,000 -2,412,000 -2,062,000 -2,158,000 -3,230,000 -2,729,000 -2,803,000 -2,035,000 -1,816,000 -1,323,000 -1,532,000 -1,023,000    -1,344,000 -1,602,000 -237,000 -1,802,000 -683,000   2,640,000 1,288,000 2,275,000                     
          unrealized/realized losses on financial instruments owned, at fair value and other investments
        -2,641,000 -7,218,000 155,000 -110,000 -665,000 192,000 -1,700,000 -106,000 -36,963,000 -5,320,000 -472,000 61,000 1,325,000 -226,000                                          
          amortization of discount (premium) on notes payable
        1,248,000 856,000 1,441,000 1,433,000 1,100,000 900,000 882,000 -1,287,000 791,000 954,000 804,000 1,049,000 855,000 702,000 703,000 696,000 700,000 754,000 871,000 986,000 981,000 1,098,000    3,907,000 -637,000 -628,000 -1,607,000                           
          impairment of fixed assets, intangible assets and investments
        101,000 1,125,000 65,000 1,231,000 372,000 295,000 173,000 69,000 209,000 131,000 246,000 997,000 1,770,000 571,000 342,000 3,106,000 2,120,000 7,353,000 628,000 1,256,000 2,009,000 7,253,000    668,000                              
          deferred tax provision
        1,707,000 -19,194,000 1,516,000 -876,000 3,515,000 -66,667,000 1,580,000 -4,065,000 -602,000 -37,878,000 -17,144,000 -6,662,000 1,128,000 -16,653,000 1,372,000 -856,000 1,509,000 -6,963,000 -583,000 -4,051,000 -350,000 786,000    2,627,000 -1,612,000 4,587,000 24,670,000 -50,244,000 -4,907,000 -2,764,000 -4,084,000 564,000 552,000                     
          change in estimated acquisition earn-out payables
        1,169,000 685,000 429,000 2,440,000 1,423,000 647,000 754,000 -96,000 -159,000 719,000 110,000 -61,000 674,000 1,550,000 -62,000 -678,000 224,000 2,272,000 74,000 837,000 1,102,000 -1,141,000    -1,029,000 -2,728,000 -1,042,000                            
          forfeitures of class a common stock
        -95,000 -376,000 -63,000 -89,000 -77,000 -136,000 -66,000 -786,000 -394,000 -747,000 -49,000 -75,000 -171,000   -223,000          -275,000                          
          other
        -104,000     7,501,000 29,829,000       -2,737,000 43,000 780,000 -737,000 -2,244,000 -882,000 -1,052,000      -1,000 -556,000 23,000 -414,000    -171,000 -145,000 225,000 -537,000 393,000 2,123,000 -1,289,000 -478,000 -592,000 287,000 501,000         
          consolidated net income, adjusted for non-cash and non-operating items
        212,711,000 124,564,000 154,382,000 186,782,000 171,328,000 82,064,000 137,092,000 129,879,000 141,230,000 90,968,000 101,330,000 127,429,000 139,154,000 110,771,000 94,757,000 93,647,000 119,294,000 52,727,000 89,514,000 118,232,000 131,133,000 106,621,000    -435,664,000 107,156,000 120,742,000 142,101,000 35,692,000 89,142,000 86,033,000 39,183,000 55,650,000 74,294,000                     
          decrease in operating assets:
                                                               
          financial instruments owned, at fair value
        31,768,000 21,568,000 -9,915,000 41,128,000 7,700,000 23,281,000 -16,716,000 -146,474,000 -3,524,000 87,000 -5,363,000 1,364,000 -1,563,000 -593,000                                          
          receivables from broker-dealers, clearing organizations, customers and related broker-dealers
        -1,364,336,000 1,430,950,000 -948,031,000 331,803,000 -912,230,000 802,975,000 -108,742,000 453,442,000 -1,169,259,000 827,266,000 85,833,000 590,715,000 -1,291,324,000 1,639,105,000 160,107,000 16,104,000 -1,592,749,000 1,034,707,000 -365,966,000 367,517,000 -1,518,927,000 -1,753,696,000    -993,817,000 30,798,000 -1,178,874,000 1,271,436,000 259,412,000 -318,058,000 -889,830,000 -189,639,000 571,519,000 -1,033,649,000 240,175,000 -238,819,000 -895,254,000 -413,452,000 558,318,000 -94,602,000               
          accrued commissions receivable
        -131,305,000 41,301,000 184,000 -31,134,000 -76,159,000 34,485,000 -1,341,000 -10,769,000 -43,178,000 21,098,000 -771,000 10,270,000 -36,347,000 10,368,000 10,281,000 31,020,000 -45,382,000 -20,431,000 79,730,000 -45,568,000 -115,045,000 -59,682,000     -55,839,000 -22,306,000 20,173,000 5,822,000 -865,000 -24,589,000 1,327,000 7,118,000 -11,176,000 -3,825,000 -24,061,000 -23,988,000 -11,131,000 39,497,000 -39,620,000               
          loans, forgivable loans and other receivables from employees and partners
        -53,305,000 -10,036,000 -30,572,000 -61,820,000 -51,405,000 29,041,000 -6,558,000 -11,183,000 -31,357,000 -29,939,000 -23,844,000 20,923,000 -44,604,000 -9,486,000 -17,018,000 -18,101,000 -16,600,000 -12,750,000 -13,421,000 18,801,000 -31,201,000 -34,183,000    -64,453,000 -29,411,000 -16,984,000 2,685,000 -29,686,000 -30,426,000 -80,089,000 4,143,000 -24,394,000 -1,696,000 -10,049,000 -20,455,000 -2,446,000 -12,797,000 -17,349,000 -21,867,000               
          receivables from related parties
        206,000 4,078,000 1,310,000 -5,768,000 921,000 -996,000 -4,306,000 3,638,000 -2,226,000 3,190,000 3,021,000 -4,974,000 -2,617,000 5,143,000 2,130,000 -1,478,000 -2,174,000 3,628,000 1,533,000 -653,000 3,869,000 9,004,000    -467,000 -774,000 -3,325,000 -10,477,000 5,935,000 15,222,000 -7,613,000 3,042,000 -3,405,000 6,882,000 10,354,000 -4,695,000 2,338,000 -786,000 2,932,000 -901,000            1,630,000   
          other assets
        11,852,000 51,805,000 -47,829,000 -29,513,000 -18,697,000 14,280,000 -21,049,000 10,339,000 -14,244,000 13,455,000 8,241,000 198,000 -2,091,000 2,360,000 -951,000 -4,586,000 -5,292,000 16,952,000 -5,454,000 -7,286,000 -2,669,000 7,698,000    -9,844,000 -4,309,000 -3,850,000 3,280,000 25,122,000 -3,548,000 -12,408,000 7,784,000 9,193,000 -30,416,000 2,231,000 -12,670,000 -7,134,000 -5,658,000 8,061,000 -2,737,000         4,869,000 193,000 1,548,000 -1,023,000 945,000 991,000 
          increase in operating liabilities:
                                                               
          accrued compensation
        -14,200,000 54,480,000 -6,365,000 35,995,000 -40,856,000 42,920,000 -9,020,000 23,046,000 -37,343,000 25,352,000 -2,171,000 566,000 -5,297,000 -1,837,000 -1,954,000 -13,023,000 -8,364,000 42,750,000 -7,790,000 -1,098,000 -15,873,000 22,413,000    31,321,000 22,371,000 -54,946,000 -27,485,000 -19,028,000 14,239,000 -26,896,000 -8,449,000 -2,503,000 7,797,000 -4,077,000 16,392,000 9,334,000 -9,424,000 -66,498,000 418,000               
          payables to broker-dealers, clearing organizations, customers and related broker-dealers
        1,328,119,000 -1,409,101,000 938,262,000 -336,643,000 888,421,000 -773,028,000 118,084,000 -458,600,000 1,136,863,000 -801,231,000 -63,363,000 -609,868,000 1,270,560,000 -1,607,851,000 -160,651,000 -30,409,000 1,546,421,000 -1,006,333,000 357,248,000 -371,065,000 1,497,233,000 1,760,191,000    988,269,000 -31,823,000 1,140,919,000 -1,238,052,000 -244,389,000 255,753,000 886,130,000 201,408,000 -592,707,000 1,031,984,000 -235,256,000 311,895,000 858,278,000 390,955,000 -546,192,000 248,496,000               
          payables to related parties
        3,735,000 26,858,000 906,000 -52,887,000 24,762,000 13,601,000 -22,883,000 -19,289,000 40,075,000 14,902,000 13,192,000 3,271,000 -7,220,000 -68,471,000 -11,642,000 12,379,000 23,952,000 -40,477,000 16,480,000 31,398,000 11,195,000 -59,153,000    -9,804,000 21,052,000 -10,679,000 11,226,000 -6,898,000 -21,223,000 23,326,000 -11,652,000 -642,000 4,335,000 -9,371,000 -11,148,000 12,006,000 12,812,000 11,289,000 -6,088,000            -4,821,000   
          accounts payable, accrued and other liabilities
        -5,054,000 -156,052,000 89,528,000 -6,704,000 7,054,000 -14,773,000 28,378,000 -33,560,000 11,055,000 8,354,000 -3,208,000 -45,577,000 5,836,000 13,929,000 2,140,000 -12,369,000 -41,541,000 46,701,000 -58,374,000 33,255,000 85,337,000 -60,259,000    -12,000 81,802,000 -358,000 -72,910,000 83,069,000 21,146,000 -37,122,000 5,318,000 4,199,000 -35,083,000 -129,240,000 193,163,000 872,000 6,854,000 -5,064,000 16,763,000               
          net cash from operating activities
        20,191,000 180,415,000 141,860,000 71,239,000 839,000 251,888,000 88,320,000 -52,950,000 28,092,000 173,502,000 312,897,000 -105,683,000 24,487,000 92,425,000 77,969,000 63,851,000 -9,883,000 111,064,000 107,806,000 154,124,000 44,191,000 -71,594,000    -563,898,000 123,875,000 109,148,000 224,027,000 231,159,000 -277,073,000 -202,077,000 51,667,000 29,094,000 64,000 42,535,000 52,507,000 7,517,000 -11,789,000 48,052,000 63,235,000 -7,601,000 -23,289,000 225,485,000 63,250,000 52,659,000 33,219,000 119,865,000 -22,909,000 -10,963,000 13,725,000 7,418,000 1,133,000 13,311,000 24,014,000 
          capital expenditures
           
          free cash flows
        20,191,000 180,415,000 141,860,000 71,239,000 839,000 251,888,000 88,320,000 -52,950,000 28,092,000 173,502,000 312,897,000 -105,683,000 24,487,000 92,425,000 77,969,000 63,851,000 -9,883,000 111,064,000 107,806,000 154,124,000 44,191,000 -71,594,000    -563,898,000 123,875,000 109,148,000 224,027,000 231,159,000 -277,073,000 -202,077,000 51,667,000 29,094,000 64,000 42,535,000 52,507,000 7,517,000 -11,789,000 48,052,000 63,235,000 -7,601,000 -23,289,000 225,485,000 63,250,000 52,659,000 33,219,000 119,865,000 -22,909,000 -10,963,000 13,725,000 7,418,000 1,133,000 13,311,000 24,014,000 
          cash flows from investing activities:
                                                               
          purchases of fixed assets
        -4,821,000 -5,293,000 -4,672,000 -6,269,000 -5,254,000 -6,312,000 -9,560,000 -10,522,000 -3,230,000 -5,823,000 -2,020,000 -4,754,000 -2,327,000 -4,157,000 -2,990,000 -2,414,000 -1,030,000 -2,066,000 -2,134,000 -4,205,000 -1,707,000 -6,631,000 -12,716,000 -12,123,000  -4,309,000 -11,468,000 -9,878,000 -15,815,000 -14,202,000 -10,748,000 -11,894,000 -4,839,000 -1,889,000 -3,315,000 -4,668,000 -2,155,000 -6,641,000 -7,650,000 -8,618,000 -7,637,000 -6,954,000 -12,656,000 -9,338,000 -8,521,000 -5,382,000 -5,895,000 -7,997,000 -10,749,000       
          capitalization of software development costs
        -9,942,000 -12,471,000 -13,696,000 -8,138,000 -10,241,000 -11,019,000 -10,998,000 -8,427,000 -11,987,000 -11,028,000 -9,476,000 -12,260,000 -12,210,000 -13,094,000 -12,630,000 -11,403,000 -11,042,000 -11,471,000 -7,812,000 -12,738,000 -11,157,000 -12,931,000 -12,159,000 -6,259,000  -18,560,000 -9,637,000 -4,704,000 -7,361,000 -7,328,000 -7,514,000 -2,753,000 -2,457,000 -4,737,000 -2,534,000 -3,805,000 -3,819,000 -3,909,000 -4,018,000 -4,417,000 -3,335,000 -4,110,000 -4,234,000 -3,099,000 -3,394,000 -4,888,000 -4,091,000 -4,484,000 -6,901,000  -6,197,000 1,635,000 -5,579,000 -3,032,000 -3,183,000 
          proceeds from equity method investments
        98,000 7,817,000   7,211,000   -46,000 6,446,000 1,193,000 1,828,000 4,584,000 1,457,000 77,000 97,000 4,614,000 5,241,000 77,000     4,340,000                              
          payments for acquisitions, net of cash acquired
         -1,614,000 -15,717,000 -262,781,000 -600,000                      -2,000 -63,293,000 -43,053,000 -6,061,000 -900,000 -112,251,000 -25,307,000 -8,222,000 -4,733,000 -108,000 -214,000 -1,500,000 -47,025,000                
          purchase of investment carried under measurement alternative
        -3,474,000     -9,456,000 -3,699,000                                               
          purchase of other assets
        -98,000 -175,000 -104,000 -175,000 -499,000 -129,000 -111,000 -144,000 -243,000                                               
          net cash from investing activities
        -18,237,000 37,315,000 -26,372,000 -276,994,000 -16,594,000 110,112,000 9,331,000 -197,278,000 -19,159,000 -30,226,000 -5,209,000 -16,276,000 -38,996,000 -16,906,000 -11,603,000 -12,483,000 -12,338,000 151,824,000 -5,577,000 -11,972,000 -13,142,000 -18,383,000 -4,016,000 12,068,000  -39,990,000 -21,356,000 -70,691,000 -41,342,000 26,174,000 24,180,000 324,763,000 -94,717,000 -29,493,000 -10,818,000 -186,232,000 740,912,000 -11,551,000 -50,926,000 -61,025,000 -11,773,000 -14,340,000 -17,918,000   15,049,000 80,002,000 -43,502,000 -81,631,000 5,063,000 -8,744,000 1,312,000 -9,700,000 -10,543,000 -6,770,000 
          cash flows from financing activities:
                                                               
          issuance of long-term debt, net of deferred issuance costs
         239,979,000                                                     
          repayment of short-term borrowings from related parties
        -20,000,000                                                     
          earnings distributions to limited partnership interests and other noncontrolling interests
         -470,000 -7,805,000 -5,223,000 445,000 -14,263,000 -3,633,000 -8,615,000 -9,761,000 -6,868,000 -9,240,000 -8,215,000 -14,941,000 -19,773,000 -29,578,000                 -29,841,000                 
          payments for tax obligations related to equity awards
        -39,652,000                                                       
          dividends to stockholders
        -9,722,000 -9,654,000 -9,776,000 -9,707,000 -9,857,000 -9,722,000 -9,760,000 -9,836,000 -4,847,000 -5,114,000 -4,709,000 -3,819,000 -3,739,000 -3,716,000 -3,700,000 -3,733,000 -3,710,000 -3,654,000 -3,818,000 -3,852,000 -3,774,000 -49,633,000 -41,569,000 -47,434,000 -55,218,000 -63,095,000 -51,386,000 -45,124,000 -44,477,000 -44,408,000 -43,930,000 -37,980,000 -26,300,000 -26,122,000 -26,376,000 -25,709,000 -20,235,000 -19,612,000 -23,585,000 -22,045,000 -13,771,000 -11,617,000 -5,008,000 -6,582,000 -7,173,000 -7,161,000 -3,255,000 -6,927,000        
          repurchase of class a common stock
        -2,259,000 -67,965,000 -41,914,000 -148,510,000 -23,125,000 -50,019,000 -64,075,000 -79,493,000 -68,624,000 -28,043,000 -40,056,000 -42,273,000 -4,208,000 -24,593,000 -52,887,000   -138,346,000 -119,269,000 -103,386,000 -4,397,000  -1,236,000 -633,000 -95,000 -4,470,000 -6,120,000 -23,325,000 -2,970,000 -7,051,000 -62,679,000 -28,323,000 -28,550,000 -19,135,000 -5,578,000   -337,000 -266,000 -55,000 -4,000,000 -13,371,000 -1,216,000 -6,695,000 -2,645,000 -15,252,000 -373,000  -11,610,000 
          payments on acquisition earn-outs
        -639,000 -603,000         -3,060,000 -7,302,000 -837,000 -3,928,000 -1,631,000 -5,903,000    -10,153,000                            
          net cash from financing activities
        -72,272,000 -142,044,000 -160,022,000 57,242,000 266,055,000 -205,739,000 -102,245,000 253,608,000 -94,642,000 -49,421,000 -262,353,000 148,179,000 16,715,000 -62,953,000 -86,368,000 -59,923,000 -23,962,000 -481,456,000 -73,070,000 -216,737,000 -48,274,000 124,721,000 -25,861,000 158,757,000 -653,249,000 557,098,000 -70,194,000 -113,543,000 -127,267,000 -236,461,000 223,925,000 -130,236,000 -101,300,000 -80,658,000 -67,271,000 -169,426,000 -60,671,000 -44,850,000 2,063,000 -48,338,000 -21,489,000 -25,124,000 -32,742,000 -20,284,000 -1,586,000 -20,295,000 -15,105,000 -23,567,000 -48,831,000 290,000 -264,000 3,789,000 -11,457,000 8,747,000 1,093,000 
          effect of exchange rate changes on cash and cash equivalents, and cash segregated under regulatory requirements
        -251,000 -1,209,000 1,651,000 4,826,000 2,193,000                                                   
          net increase in cash and cash equivalents, and cash segregated under regulatory requirements
        -70,569,000  -42,883,000 -143,687,000 252,493,000 149,773,000 -2,645,000 1,037,000 -87,788,000 96,902,000 33,387,000 32,687,000 7,910,000 16,149,000 -23,280,000 -14,445,000 -43,213,000 96,910,000 10,493,000                                     
          cash and cash equivalents, and cash segregated under regulatory requirements at beginning of period
        873,673,000 733,273,000                                                   
          cash and cash equivalents, and cash segregated under regulatory requirements at end of period
        803,104,000 74,477,000 -42,883,000 -143,687,000 985,766,000                                                   
          supplemental cash information:
                                                               
          cash paid during the period for taxes
        31,052,000 36,032,000 24,343,000 54,016,000 33,746,000 20,720,000 23,580,000 41,891,000 17,333,000 23,269,000 14,571,000 23,285,000 9,593,000 3,515,000 9,178,000 18,736,000 4,353,000 10,302,000 11,721,000 20,133,000 1,201,000 17,461,000 7,387,000 5,722,000 28,102,000 14,230,000 14,952,000 5,806,000 39,482,000 19,385,000 6,164,000 29,647,000 8,048,000 1,860,000 49,731,000 138,337,000    -4,309,000 9,806,000 11,686,000 4,458,000 2,161,000 3,337,000 4,484,000 5,895,000 12,983,000 6,651,000       
          cash paid during the period for interest
        5,328,000 60,342,000 3,346,000 41,049,000 4,681,000 47,238,000 2,498,000 32,959,000 5,697,000 32,873,000 16,979,000 16,197,000 14,615,000 13,791,000 13,445,000 13,136,000 13,283,000 15,424,000 15,674,000 22,013,000 13,339,000 15,394,000 11,925,000 13,835,000 -29,462,000 19,876,000 20,194,000 13,010,000 18,433,000 17,170,000 10,719,000 17,280,000 6,516,000 9,520,000 6,654,000 13,521,000 2,947,000 7,012,000 7,359,000 8,152,000 1,114,000 4,208,000 964,000 4,482,000 529,000 4,459,000 450,000 5,870,000 1,828,000       
          supplemental non-cash information:
                                                               
          issuance of class a and contingent class a common stock for acquisitions
        3,903,000                             4,011,000 1,195,000 651,000    2,000                    
          rou assets and liabilities
        34,603,000 31,922,000 18,461,000 44,480,000 2,762,000 3,400,000 5,302,000 10,124,000 1,283,000 126,000 24,580,000 870,000 1,625,000 27,629,000 801,000 14,007,000 1,686,000 4,420,000                                      
          equity-based compensation and allocations of net income to limited partnership units and fpus
         95,892,000 74,447,000 83,926,000 75,323,000 121,165,000 85,690,000 66,207,000 96,081,000 78,093,000 69,268,000 126,644,000 81,373,000 89,332,000 57,730,000 46,133,000 57,876,000 85,889,000 78,490,000 58,290,000 33,495,000 42,204,000    71,067,000 57,844,000 70,716,000 66,851,000 66,649,000 46,741,000 36,633,000 55,216,000 25,735,000 34,314,000                     
          loss on divestiture
                                                               
          proceeds from disposal of subsidiary
                                                               
          purchase of equity method investments
                   -122,000 -123,000 -343,000 -245,000 -245,000 -270,000 -355,000 -245,000 -367,000 -368,000    -521,000 6,377,000 -784,000 -6,828,000 -129,000 -6,829,000 -113,000                     
          loan to related parties
                                                           
          proceeds from repayment of related parties loan
                                                             
          repayments of long-term debt borrowings
         -300,000,000 -85,000,000   -300,000,000                                                 
          issuance of short term borrowings from related parties
                                                               
          redemption and repurchase of equity awards
         -23,801,000 -23,332,000 -11,528,000 -50,493,000 -41,562,000 -27,914,000 -21,052,000 -48,366,000 -15,373,000                                              
          proceeds from sale of cantor units in bgc holdings
                   540,000   2,749,000 5,145,000                                   
          short term borrowings, net of repayments
                                                             
          proceeds from noncontrolling interests
                                                               
          net increase in cash and cash equivalents, and cash segregated under regulatory requirements including cash and cash segregated under regulatory requirements
                                                               
          issuance of class a common stock upon exchange of limited partnership interests
                 14,689,000 31,179,000 409,000 21,701,000 -2,030,000 14,809,000 11,867,000 12,773,000 93,770,000 39,137,000 3,264,000 8,351,000 9,736,000 15,910,000 27,421,000 20,851,000 35,592,000 21,669,000 25,319,000 20,583,000 7,852,000 29,254,000 12,800,000 22,123,000 4,305,000 18,027,000 23,747,000 22,391,000                 
          issuance of class a and contingent class a common stock and limited partnership interests for acquisitions
         560,000 2,507,000 3,521,000 4,760,000 597,000 3,163,000 4,514,000 2,761,000 734,000 1,976,000 647,000 488,000 25,000 1,399,000 228,000 1,874,000 2,167,000 12,598,000 -410,000 4,635,000                            
          repurchase agreements
              -4,619,000        113,000 -6,611,000 7,511,000    94,000 512,000    -2,910,000  4,869,000                            
          issuance of short-term borrowings from related parties
              275,000,000                                               
          proceeds from non-controlling interest
                                                               
          proceeds from non-controlling interests
                                                             
          issuance of long-term debt borrowings, net of deferred issuance costs
            350,000,000  -496,000                                                 
          issuance of class a common stock upon exchange of contingent share obligations
                3,647,000                                               
          repayment of loan to related parties
             150,000,000                                                  
          net increase in cash and cash equivalents, and cash segregated under regulatory requirements including cash and cash segregated under regulatory requirements classified within assets held for sale
                          23,174,000                                     
          less: net increase in cash classified within assets held for sale
                          -12,681,000                                     
          pre-acquisition cash capital contribution to futures exchange group
                                                              
          effect of exchange rate changes on cash and cash equivalents and cash segregated under regulatory requirements
              1,949,000 -2,343,000 -2,079,000  -11,948,000 6,467,000 5,704,000  -3,278,000 -5,890,000 2,970,000  -5,985,000 2,034,000 -1,556,000 -13,496,000                                  
          cash and cash equivalents and cash segregated underregulatory requirements at beginning of period
              672,896,000  502,010,000                                           
          cash and cash equivalents and cash segregated under regulatory requirements at end of period
              -2,645,000 1,037,000 585,108,000  33,387,000 32,687,000 509,920,000  -23,280,000 -14,445,000 523,586,000  13,222,000 -375,229,000 831,896,000 657,362,000                                  
          reverse repurchase agreements
                                  54,659,000             -49,999,000            189,804,000   
          repayments of long-term debt and collateralized borrowings
                -240,000,000 -450,000,000 -111,630,000 -61,621,000  -1,602,000 -1,593,000 -1,584,000 -301,575,000 -1,567,000 -259,578,000 -3,524,000 -3,402,000 -21,863,000 -3,731,000                                
          issuance of long-term debt and collateralized borrowings, net of deferred issuance costs
                 -891,000 238,633,000 381,579,000 135,000,000  -12,000 -27,000 -6,000 -8,000 109,978,000 188,546,000 -97,000 227,837,000 75,004,000 249,450,000 -45,000                               
          gain on insurance business disposition
                                                               
          gross proceeds from insurance business disposition
                                                               
          cash and restricted cash transferred as part of insurance business disposition
                                                               
          acquisition of futures exchange group
                                                              
          payments for acquisitions, net of cash and restricted cash acquired
                  -325,000 -26,177,000         -7,938,000 26,265,000  -27,383,000                              
          purchase of assets
                  -159,000 -130,000 -110,000         -2,000,000                                  
          redemption and repurchase of limited partnership interests
                   -67,042,000 -34,454,000 -29,909,000 -19,552,000 -14,964,000 -11,794,000 -31,382,000 -39,943,000 -18,223,000 -21,017,000 -16,575,000 -8,404,000 -5,201,000 -22,522,000 -10,038,000 -9,973,000 -14,183,000 -24,328,000 -6,768,000 -10,635,000 -10,261,000                        
          financial instruments loaned, at fair value
                                                               
          proceeds from sale of financial instruments owned, at fair value
                                                               
          repayments of debt and collateralized borrowings
                                                               
          issuance of debt and collateralized borrowings, net of deferred issuance costs
                                                               
          cash and cash equivalents and cash segregated under regulatory requirements at beginning of period
                      566,799,000  2,729,000 850,677,000 636,114,000                                  
          losses on marketable securities and other investments
                                                               
          securities owned
                       -2,722,000 5,041,000 -3,413,000 11,309,000 10,685,000 -955,000 -131,000    -18,497,000 345,000 1,269,000 176,699,000 106,524,000 -285,813,000 -406,000 -1,149,000 762,000 -3,422,000 -75,000 -15,000 -156,000 -21,776,000 223,000 206,000               
          realized losses on marketable securities
                            11,000 -289,000    -1,661,000 -1,222,000 -1,618,000 -2,186,000                          
          unrealized losses on marketable securities
                        4,000 -57,000 11,000                                     
          loss (gains) on other investments
                        -140,000 140,000 -154,000   40,000                                  
          securities loaned
                             -10,929,000    -11,186,000 8,034,000 87,293,000 -77,000 -117,890,000                        
          proceeds from sale of marketable securities
                             11,362,000 20,073,000 4,553,000  6,670,000 7,829,000 17,556,000 51,771,000 55,158,000 511,161,000                        
          cancellation of rsus in satisfaction of withholding tax requirements
                                                               
          adjustments to reconcile consolidated net income to net cash from (used in) operating activities:
                                                               
          net increase in cash and cash equivalents and cash segregated under regulatory requirements
                            -18,781,000 21,248,000                                  
          right-of-use assets and liabilities
                             7,654,000                                  
          investment in memberships
                                                               
          cancellation of restricted stock units in satisfaction of withholding tax requirements
                                -52,000 -1,512,000 -30,000 -773,000     -1,411,000 -372,000        -465,000 -1,145,000       
          proceeds from issuance of class a common stock, net of costs
                                3,447,000   319,000                          
          loan from related parties, net of repayments
                                                               
          net cash from operating activities from discontinued operations
                                                               
          net cash from investing activities from discontinued operations
                                                               
          net cash from financing activities from discontinued operations
                                                               
          effect of exchange rate changes on cash and cash equivalents, restricted cash and cash segregated under regulatory requirements
                              -1,184,000 1,291,000 -3,007,000 183,000                              
          net increase in cash and cash equivalents, restricted cash and cash segregated under regulatory requirements
                              88,003,000 111,338,000 -358,640,000 -46,607,000                              
          cash and cash equivalents, restricted cash and cash segregated under regulatory requirements at beginning of period
                              416,778,000                              
          cash and cash equivalents, restricted cash and cash segregated under regulatory requirements at end of period
                              88,003,000 528,116,000 -358,640,000 -46,607,000                              
          earnings distributions
                               -27,188,000 18,796,000 -53,496,000 -32,146,000 -36,158,000 -9,111,000 -19,475,000 -23,563,000 -17,591,000 -12,513,000                       
          deemed contribution due to acquisition of lucera
                                                               
          acquisition of lucera
                                                               
          acquisition of berkeley point
                                                               
          proceeds from exercise of stock options
                                    335,000           8,134,000               
          proceeds from short-term borrowings
                                                               
          proceeds from sale of limited partnership interests
                                                               
          issuance of class a common stock upon conversion of convertible notes
                                                              
          value of shares received for nasdaq earn-out
                                                               
          amortization of mortgage servicing rights
                                 21,216,000                              
          gain on originated mortgage servicing rights
                                 -33,901,000                              
          unrealized losses on loans held for sale
                                 6,827,000                              
          loan originations - loans held for sale
                                 -3,278,137,000                              
          loan sales - loans held for sale
                                 2,686,613,000                              
          unrealized loss on marketable securities
                                 5,761,000 -5,518,000 -4,725,000 614,000 -3,910,000 -7,338,000 10,275,000  -1,667,000 2,838,000                     
          unrealized loss on derivative asset
                                 -9,135,000                              
          recognition of earn-out
                                                               
          loss on other investments
                                 -17,765,000                              
          mortgage servicing rights
                                                               
          accrued commissions and other receivables
                                 -36,834,000                              
          purchase of equity and cost method investments
                                 -232,000                              
          advances to related parties
                                                               
          repayments from related parties
                                                               
          purchase of mortgage servicing rights
                                 -516,000                              
          capitalization of trademarks, patent defense and registration costs
                                  -125,000 -124,000 -126,000 -57,000 -182,000 -181,000 -20,000 -21,000 -123,000 -22,000 -399,000 -380,000 -262,000 -544,000 -267,000               
          repayments of notes payable and other borrowings
                                 -539,366,000                              
          proceeds from warehouse notes payable
                                 3,278,137,000                              
          repayments on warehouse notes payable
                                 -2,686,916,000                              
          proceeds from issuance of exchangeable preferred partnership units in newmark partners, l.p.
                                 113,207,000                              
          advances from related parties
                                                               
          repayments to related parties
                                                               
          loan from related parties
                                 -50,000,000                              
          pre-acquisition distribution from berkeley point to ccre
                                                               
          payments on acquisitions earn-outs
                                 -3,928,000                              
          distribution from berkeley point to ccre
                                                               
          shares received for nasdaq earn-out
                                                              
          proceeds from notes payable and other borrowings
                                                               
          loans to related parties
                                                               
          impairment of fixed assets, intangible assets and equity method investments
                                  214,000 1,424,000                            
          sublease provision adjustment
                                    -258,000 -274,000 -275,000 269,000 -1,230,000 1,455,000     712,000                
          cash segregated under regulatory requirements
                                  -20,658,000 -9,281,000 10,000 9,584,000 -10,743,000 -2,545,000 5,856,000 -248,000 -6,886,000 -1,992,000 -3,551,000 373,000 -404,000 368,000 -714,000               
          purchase of cost and equity method investments
                                                               
          purchase of marketable securities
                                    -5,055,000 -10,850,000 -52,491,000 -61,965,000                 67,000 -2,229,000     
          repayments of collateralized borrowings
                                  -1,770,000 -1,753,000 -1,737,000 -1,721,000 -1,705,000 -1,695,000                        
          issuance of senior notes, net of deferred issuance costs
                                    6,000                          
          issuance of collateralized borrowings, net of deferred issuance costs
                                                               
          payments on acquistions earn-outs
                                                               
          effect of exchange rate changes on cash and cash equivalents
                                  865,000 1,914,000 -2,836,000 85,000 410,000 2,459,000 -2,774,000 231,000 124,000 730,000 -820,000 -1,111,000 1,465,000                 
          net increase in cash and cash equivalents
                                  33,190,000 -73,172,000 52,582,000    -147,124,000   -312,393,000   -59,187,000 -62,603,000 36,435,000 -47,858,000 -80,033,000 45,882,000 73,646,000 48,899,000 95,944,000 52,796,000 -153,371,000 -5,610,000 4,717,000 12,519,000 -20,024,000 11,515,000 18,337,000 
          cash and cash equivalents at beginning of period
                                  502,024,000 927,000 461,207,000 716,919,000 388,409,000 369,713,000 364,104,000 469,301,000 204,930,000 21,838,000 -196,728,000 209,688,000   
          cash and cash equivalents at end of period
                                  33,190,000 428,852,000 53,509,000 20,957,000 -28,558,000 456,116,000 -147,124,000 -80,826,000 639,018,000 -312,393,000 731,928,000 338,414,000 310,526,000 -62,603,000 400,539,000 -47,858,000 389,268,000 45,882,000 73,646,000 48,899,000 300,874,000 52,796,000 -153,371,000 26,910,000 5,333,000 -169,097,000 189,664,000   
          securities borrowed
                                          -2,735,000    -17,362,000  -51,452,000               
          securities sold, not yet purchased
                                       1,822,000 1,301,000 1,817,000 -165,000      61,000               
          proceeds from sale of cost method investments
                                                              
          impairment of fixed assets and intangible assets
                                                               
          recognition of earn-out and related hedges
                                                              
          loss (gains) on sale of cost method investments
                                                               
          loss (gains) on divestitures
                                                               
          proceeds from divestitures
                                                               
          repayments of convertible notes
                                                              
          repayments of short-term borrowings
                                                               
          shares received in trayport transaction
                                                               
          impairment of fixed assets
                                     568,000 1,378,000 1,791,000 376,000 474,000 3,249,000 410,000 351,000 413,000 773,000    492,000             
          change in the fair value of contingent consideration
                                                               
          loss on sale of cost method investment
                                                               
          loss on divestitures
                                                               
          disposal of assets and liabilities held for sale
                                                               
          cash and cash equivalents classified as assets held for sale
                                                               
          amortization of (premium)/discount on notes payable
                                      302,000 -1,316,000                        
          net decrease in cash and cash equivalents
                                      -28,558,000 -5,091,000   -77,901,000   -49,995,000                  
          issuance of class a common stock upon conversion of 8.75% convertible notes
                                                               
          gains on equity method investments
                                       -558,000                        
          realized gain on marketable securities
                                       -9,499,000                        
          accretion of discount on convertible notes
                                        1,203,000 1,188,000 1,200,000 1,174,000 1,511,000 1,207,000 1,082,000 1,016,000                
          cumulative realized gain on marketable securities
                                                               
          gain on divestitures and sale of investments
                                                               
          purchase of exchange membership
                                                               
          tax impact on delivery of equity awards
                                                               
          issuance of class a, contingent class a common stock and limited partnership interests for acquisitions
                                                               
          donations with respect to charity day
                                             7,446,000                
          gain on sale of divestitures
                                                               
          gain on divestiture
                                           172,388,000                    
          proceeds from divestiture
                                           -172,388,000                    
          repayments of collateral borrowings
                                        2,000 -1,601,000 -1,989,000                    
          redemption of limited partnership units
                                                               
          repurchase of limited partnership interests
                                                               
          proceeds from offering of class a common stock
                                           -106,000 -1,793,000 3,239,000 11,672,000 1,408,000 10,361,000               
          reserve on loans to employees and partners
                                                               
          redemption of limited partnership interests
                                         -9,933,000 -7,111,000 -92,409,000 -887,000 -2,609,000 -6,183,000 -28,000 -310,000               
          repurchase of limited partnership units
                                         -959,000 -897,000                     
          earnings distributions to noncontrolling interests
                                          -12,151,000 -48,367,000 -12,420,000 -19,718,000                  
          employee loan amortization and reserve on employee loans
                                                               
          equity-based compensation
                                           7,256,000 319,524,000 15,117,000 29,128,000                 
          allocations of net income to limited partnership units and founding/working partner units
                                           4,989,000 46,084,000 7,438,000 5,980,000 9,200,000               
          losses on equity investments
                                           2,705,000 1,224,000 3,288,000 2,456,000 1,870,000 1,661,000 1,692,000 1,749,000             
          impairment of marketable securities
                                                               
          deferred tax benefit
                                           -2,422,000 -62,390,000 -6,654,000   -689,000 -1,779,000 -1,742,000    -2,883,000 -9,199,000        
          investment in equity method investments
                                           -374,000 -390,000 -407,000                  
          sale of marketable securities
                                              906,000                 
          purchase of notes receivable
                                              -22,000,000                 
          proceeds from collateralized borrowings
                                                               
          issuance of class a common stock upon purchase of notes receivable
                                              3,055,000                 
          use of notes receivable in business acquisition
                                                               
          employee loan amortization
                                            10,223,000 9,459,000 6,953,000 7,886,000 8,925,000               
          impairment loss on marketable securities
                                                               
          notes receivable
                                              -442,000                 
          repayment of collateral borrowings
                                             -6,150,000                  
          cash paid (refunded) during the period for taxes
                                             7,570,000                  
          adjustments to reconcile net income to net cash from operating activities:
                                                               
          gain on sale of investment
                                                               
          recognition of deferred revenue
                                               -3,129,000 -632,000 -1,216,000 -1,250,000 5,164,000 -3,367,000 -3,604,000 -3,412,000 -4,565,000 -3,215,000 -1,497,000      
          proceeds from sale of investment
                                                               
          distribution from equity method investment
                                                               
          purchases of marketable securities
                                                               
          repayment of newmark debt
                                                               
          issuance of convertible notes, net of debt issuance costs
                                                               
          issuance of senior notes, net of debt issuance costs
                                                               
          purchase of capped call
                                                              
          partner purchase of founding/working partner units
                                                               
          proceeds from exercises of stock options
                                                          95,000    5,158,000 
          repayments of long-term borrowings
                                                               
          issuance of convertible notes to cantor
                                                               
          tax impact on exercise/delivery of equity awards
                                               76,000                
          conversion of class b common stock into class a common stock
                                                   27,000   17,000       
          issuance of class a common stock upon exchange of cantor units
                                                              
          issuance of class b common stock upon exchange of cantor units
                                                              
          reverse repurchase agreements with related parties
                                                               
          investment in unconsolidated entities
                                              -16,402,000 -421,000 -534,000 -70,000 -792,000 -667,000 -685,000 -3,078,000 -871,000 -883,000       
          collateralized borrowings
                                              5,348,000 -5,300,000 -3,698,000 -1,472,000 -1,442,000             
          short-term borrowings
                                              46,400,000                 
          cash (refunded) paid during the period for taxes
                                              -171,000                 
          issuance of convertible notes
                                                              
          earnings distributions to limited partnership interests in bgc holdings
                                               -21,882,000 -22,150,000               
          long-term borrowings
                                                             
          supplemental non-cash information
                                                               
          issuance of contingent class a common stock for acquisitions
                                                               
          stock-based compensation
                                                14,816,000 20,113,000 -6,044,000 5,219,000 7,584,000 6,645,000 2,686,000   10,417,000 794,000     
          deferred revenue
                                                         1,280,000      
          partner purchase of working partner units
                                                               
          effect of exchange rate changes on cash
                                                6,462,000 -793,000 -6,084,000 2,436,000 1,796,000 1,486,000 -2,172,000         
          tax impact on option exercise
                                                2,315,000               
          receivables from brokers, dealers, clearing organizations, customers and related broker-dealers
                                                               
          payables to brokers, dealers, clearing organizations, customers and related broker-dealers
                                                               
          capitalization of patent defense and registration costs
                                                 -204,000 -236,000 -553,000 -159,000 -394,000 -363,000 -779,000 -640,000  -435,000  -508,000   
          investment in liquidez, net of cash acquired
                                                              
          allocations of net income to limited partnership interests in bgc holdings
                                                               
          forgivable loan amortization
                                                  8,655,000 8,677,000 7,238,000 7,993,000 7,185,000 7,461,000 7,274,000       
          changes in operating assets and liabilities:
                                                               
          decrease in cash segregated under regulatory requirements
                                                  -451,000 -1,000 -14,000 252,000 2,664,000 -4,723,000 1,731,000       
          decrease in reverse repurchase agreements with related parties
                                                   3,126,000 22,945,000           
          decrease in securities borrowed
                                                  -35,035,000             
          decrease in securities owned
                                                  372,000 -806,000 626,211,000   16,337,000 12,095,000       
          decrease in receivables from brokers, dealers, clearing organizations, customers and related broker-dealers
                                                  -482,889,000    -76,162,000         
          decrease in accrued commissions receivable
                                                  -40,017,000 17,129,000 3,807,000           
          decrease in receivables from related parties
                                                  298,000 -3,612,000 3,795,000           
          decrease in forgivable loans and other receivables from employees and partners
                                                  -6,994,000             
          decrease in other assets
                                                  11,470,000 -15,342,000 26,000 3,270,000 2,232,000 2,351,000 5,472,000       
          increase increase in securities sold, not yet purchased
                                                  28,000             
          increase in payables to brokers, dealers, clearing organizations, customers and related broker-dealers
                                                  486,958,000 -154,156,000 -658,312,000 966,581,000 107,362,000         
          increase in accrued compensation
                                                  49,947,000 -14,597,000 -3,992,000 5,205,000 13,471,000 9,180,000 3,542,000       
          increase in deferred revenue
                                                  627,000 -6,516,000 2,577,000 2,655,000 2,534,000 3,331,000 1,447,000       
          increase in accounts payable, accrued and other liabilities
                                                  33,283,000 59,907,000 7,469,000           
          increase in payables to related parties
                                                  -43,248,000 15,799,000 -21,620,000 7,054,000 10,952,000 11,237,000 -81,433,000       
          redemption of fpus
                                                  -12,921,000             
          compensation related to partner redemptions and exchangeability of founding partner units
                                                    393,000           
          allocations of net income to founding/working partner units and reus/rpus
                                                               
          grant units
                                                               
          charitable contributions
                                                              
          decrease in reverse repurchase agreements
                                                               
          (increase) in forgivable loans and other receivables from employees and partners
                                                               
          increase in securities sold, not yet purchased
                                                   -2,110,000   830,000         
          (decrease) in securities sold under agreements to repurchase
                                                               
          secured loan to related party
                                                         -105,000,000      
          payment of secured loan by related party
                                                              
          decrease in restricted cash
                                                         1,322,000     
          purchase of investment
                                                               
          increase in loan receivables from related parties
                                                              
          capital distributions
                                                              
          long-term borrowings with related parties
                                                               
          repayments of long-term borrowings with related parties
                                                              
          proceeds from primary offering of class a common stock
                                                             
          proceeds from exercises of stock options and warrants
                                                       36,000   104,000 104,000   
          proceeds from working partner unit purchases
                                                               
          excess tax benefit from stock-based compensation
                                                       -109,000 -14,000     
          earnings distributions to cantor, founding/working and reu partners
                                                   -11,631,000 -13,413,000 -11,918,000 -5,155,000         
          investment of non-cash assets in elx
                                                              
          issuance of equity instruments upon merger
                                                       47,903,000       
          forgiveness/settlement of receivables from and payables to related parties, net, in conjunction with the separation and merger
                                                              
          allocation of income to founding/working partner units and reus
                                                    1,726,000 6,190,000 5,079,000         
          other investment losses
                                                    1,747,000 1,852,000 2,143,000 2,087,000        
          deferred tax
                                                               
          increase in reverse repurchase agreements with related parties
                                                      -3,009,000         
          increase in receivables from brokers, dealers, clearing organizations, customers and related broker-dealers
                                                               
          increase in forgivable loans and other receivables from employees and partners
                                                    -2,304,000 -20,528,000 -17,316,000         
          investment of cash with related party
                                                       -29,262,000        
          investment in radix
                                                               
          net cash provided/(used) by investing activities
                                                               
          capital distribution upon separation / merger
                                                               
          notes payable and collateralized borrowings
                                                               
          fees related to primary offering of class a common stock included in accounts payable and other accrued liabilities
                                                               
          forgiveness / net settlement of receivables from and payables to related parties, net, in conjunction with the separation and merger
                                                               
          deferred tax expense
                                                               
          increase in securities borrowed
                                                     -30,382,000 -23,734,000         
          (increase) in receivables from brokers, dealers, clearing organizations, customers and related broker-dealers
                                                               
          decrease in securities sold, not yet purchased
                                                               
          increase in securities loaned
                                                               
          notes payable
                                                               
          forgiveness / net settlement of receivables from and payables to related parties
                                                               
          adjustments to reconcile net income to net cash from (used in ) operating activities:
                                                               
          increase in securities owned
                                                      -3,967,000         
          increase in accrued commissions receivable
                                                      -2,398,000         
          increase in receivables from related parties
                                                      -14,055,000  63,715,000       
          decrease in accounts payable, accrued and other liabilities
                                                      -4,856,000         
          reverse repurchase agreements with related party
                                                      91,222,000         
          capital contributions
                                                               
          net income available to common stockholders
                                                       -13,000 6,853,000       
          allocations of net income to founding/working partner units and reus
                                                               
          gain on insurance recovery from related parties
                                                               
          non-cash charge relating to the acceleration of the exchangeability of founding partner units
                                                               
          minority interest
                                                       777,000 6,511,000       
          deferred compensation plan expense
                                                               
          decrease in payables to brokers, dealers, clearing organizations, customers and related broker-dealers
                                                               
          decrease in securities loaned to related parties
                                                               
          increase in securities sold under agreements to repurchase
                                                               
          insurance recovery from related parties
                                                               
          proceeds from the sale of equities brokerage business to related parties
                                                               
          repayment of short-term borrowings
                                                               
          compensation related to partner redemptions and exchangeability of founding partners units
                                                               
          allocations of net income to founding/working partners units and reus
                                                        4,015,000       
          impairment of long lived assets
                                                               
          decrease in reverse repurchases agreements
                                                               
          increase in forgivable and other loan receivables from employees and partners
                                                               
          decrease in securities sold under agreements to repurchase
                                                               
          acquisition of radix
                                                               
          intercompany long-term borrowings
                                                               
          earnings distributions to cantor
                                                               
          earnings distributions to reus
                                                               
          earnings distributions to founding partners
                                                               
          unpaid fees related to primary offering of class a common stock
                                                               
          cash flows from operating activites
                                                               
          adjustments to reconcile net income to net cash from operating activities
                                                               
          compensation related to partner redemptions
                                                               
          impairment of long-lived assets
                                                               
          unrealized loss on securities owned
                                                               
          equity in net loss of unconsolidated investments
                                                         449,000  -27,000 21,000   
          increase in securities purchased under agreements to resell
                                                               
          increase in receivables from brokers, dealers, clearing organizations, customers and related broker- dealers
                                                               
          increase in accrued commissions receivable, net of allowance for doubtful accounts
                                                               
          increase in forgivable loans and other receivables from employees
                                                               
          increase in payable to brokers, dealers, clearing organizations, customers and related broker-dealers
                                                               
          payments of secured loan by related party
                                                               
          capital distribution upon separation/merger
                                                               
          intercompany long-term repayments
                                                               
          investment in unconsolidated entity
                                                               
          fees related to primary offering of class a common stock included in accounts payable and accrued liabilities
                                                               
          forgiveness/net settlement of receivables from and payables to related parties
                                                               
          net income
                                                         -21,004,000 857,000 -2,797,000 1,339,000  9,962,000 
          depreciation and amortization
                                                         7,923,000 8,232,000 -26,000 7,098,000 5,000,000 4,604,000 
          loss on disposal of property
                                                               
          gain on sale of investments
                                                               
          deferred income tax expense
                                                         -1,357,000 352,000 -689,000 123,000 678,000 928,000 
          tax benefit from stock option and warrant exercises
                                                            38,000   
          receivable from related parties
                                                         -3,287,000 58,000   948,000 -1,650,000 
          payable to related parties
                                                         697,000 2,355,000   2,777,000 393,000 
          accounts payable and accrued expenses
                                                               
          purchase of fixed assets
                                                         -4,314,000 -1,205,000 -240,000 -3,613,000 -6,472,000  
          capitalized software development costs
                                                               
          capitalized patent defense and registration costs
                                                               
          investment in aqua
                                                               
          reverse repurchase agreements with related parties at beginning of period
                                                         166,009,000     
          total cash and cash equivalents at beginning of period
                                                         187,847,000     
          reverse repurchase agreements with related parties at end of period
                                                         -32,520,000 187,231,000     
          contribution of net fixed assets to related party
                                                               
          cash paid for income taxes
                                                          35,000  21,000   
          deemed dividend to cantor
                                                               
          impairment of capitalized software costs
                                                               
          tax benefit from stock-based compensation
                                                          22,000     
          accounts payable and accrued liabilities
                                                          1,002,000  -3,883,000 -8,007,000 6,289,000 
          insurance proceeds from related parties
                                                               
          total cash and cash equivalents at end of period
                                                          192,564,000     
          supplemental cash information—cash paid for income taxes
                                                               
          supplemental disclosure of non-cash investing activities—contribution of net fixed assets to related party
                                                               
          equity in net income of unconsolidated investments
                                                          -22,000     
          deferred income
                                                          -104,000 -1,000 -104,000   
          contribution of license from cantor
                                                               
          changes in operating assets and liabilities, net of effect of business acquisitions:
                                                               
          purchase of investment and acquisition, net of cash acquired
                                                               
          receivable from broker on stock option exercises
                                                            49,000   
          excess tax benefits from stock-based compensation
                                                               
          issuance of securities under employee benefit plan
                                                           1,000 62,000  30,000 
          proceeds from exercises of stock options and business partner warrants
                                                               
          cash and cash equivalents
                                                            19,884,000   
          supplemental disclosure of non-cash investing and financing activities:
                                                               
          dividend distribution to cantor
                                                               
          conversion of class b common stock to class a common stock
                                                               
          amortization of business partner and non-employee securities
                                                           26,000 117,000 452,000 648,000 
          amortization of employee stock-based compensation
                                                               
          impairment of capitalized software development costs
                                                               
          impairment of intangible patent costs
                                                               
          changes in operating assets and liabilities – net of effect of business acquisitions:
                                                               
          sale of premises and equipment
                                                               
          tax benefit from employee stock options and warrant exercises
                                                               
          capitalization of patents and related defense costs
                                                               
          purchase of class a common stock
                                                               
          receivable from ubs in relation to warrant exercises
                                                               
          receivable from broker in relation to stock option exercises
                                                               
          amortization of employee stock based compensation
                                                            536,000   
          cash paid for interest
                                                               
          asset impairment charges
                                                               
          loss on unconsolidated investment
                                                               
          provision for september 11 events
                                                               
          issuance of securities under employee benefit plans
                                                               
          sale of fixed assets
                                                              
          purchase of additional investment in tradespark
                                                               
          cash and cash equivalents, beginning of year
                                                               
          cash and cash equivalents, end of period
                                                              18,337,000 
          net income.
                                                               
          loss on unconsolidated investments
                                                               
          gain on replacement of fixed assets
                                                               
          purchase of patents and capitalization of related legal costs
                                                               
          insurance claim proceeds resulting from destruction of fixed assets
                                                               
          purchases of investments
                                                               
          cash payment for treasuryconnect llc
                                                               
          proceeds from issuances of securities
                                                               
          payments for issuance related expenses
                                                               
          cash and cash equivalents, end of year
                                                               
          equity in net loss of certain unconsolidated investments
                                                              41,000 
          tax benefit from employee stock option exercises
                                                              1,778,000 
          capitalization of patents and related legal costs
                                                               
          receivable from broker on exercises of stock options
                                                               
          cash and cash equivalents, beginning of period
                                                              
          supplemental cash flow information:
                                                               
          income taxes paid
                                                               
          purchase of premises and equipment