7Baggers

Janus Henderson Group plc
(NYSE:JHG) 

JHG stock logo

Janus Henderson Group plc is an asset management holding entity. Through its subsidiaries, the firm provides services to institutional, retail clients, and high net worth clients. It manages separate client-focused equity and fixed income portfolios. The firm also manages equity, fixed income, and b...

Founded: 2017
Full Time Employees: 2,335
Sector: Financial Services
Industry: Asset Management
Asset Management
Share this website to your friends
• Market Cap:
• Exchange:
• Shs Outstanding:
• Employees:
• Beta:
• Return on Equity (ROE) ttm:
• Return on Assets (ROA) ttm:
• EPS ttm:
• Book value per Share:
• Cash per Share:
• Current ast per Share:
• P/E ttm:
• P/E forward:
• P/E ttm high:
• P/E ttm low:
• P/S ttm:
• P/B ttm:
• P/FCF ttm:
• PEG ratio:
• Cash Ratio ttm:
• Quick Ratio ttm:
• Current Ratio ttm:
• Gross Mgn ttm:
• EBITDA Mgn ttm:
• Operating Mgn ttm:
• Net Income Mgn ttm:
• Trailing Div yield:
• Forward Div yield:
• Payout Ratio ttm:
• Ex-Dividend date:
• Target Price High:
• Target Price Low:
• Target Price Mean:
• Number of Analysts:
• Debt Ratio ttm:
• Debt to Equity ttm:
• Total Net Debt:
At a glance:
Bull Thesis:
Bear Thesis:
Main Competitors:
Moat:
Income 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 2020-12-31 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 2018-03-31 2017-09-30 2017-06-30 
                                       
      revenue:
    		                                   
      management fees
    		576,200,000 585,200,000 563,100,000 507,000,000 513,000,000 522,700,000 502,800,000 472,800,000 459,400,000 427,100,000 434,900,000 423,500,000 414,600,000 405,600,000 426,200,000 453,600,000 514,000,000 565,900,000 564,500,000 544,100,000 514,900,000 489,100,000 457,700,000 407,700,000 439,600,000 457,800,000 446,200,000 446,400,000 441,900,000 452,300,000 498,700,000 493,500,000 502,900,000 477,700,000 296,000,000 
      performance fees
    		-7,100,000 433,000,000 15,800,000 14,800,000 -3,600,000 67,500,000 8,600,000 7,400,000 -13,100,000 41,700,000 -15,800,000 -5,900,000 -14,900,000 14,300,000 -13,200,000 -3,400,000 -8,400,000 7,700,000 600,000 77,400,000 17,000,000 59,300,000 7,000,000 17,200,000 14,600,000 18,300,000 1,400,000 3,500,000 -5,600,000 3,500,000  13,500,000   57,700,000 
      shareowner servicing fees
    		67,500,000 69,200,000 66,700,000 60,000,000 61,400,000 63,600,000 61,400,000 58,500,000 57,200,000 53,600,000 54,900,000 53,300,000 51,500,000 51,300,000 54,000,000 56,300,000 62,400,000 68,300,000 67,600,000 64,000,000 60,800,000 57,900,000 53,700,000 47,300,000 50,300,000 71,900,000 39,300,000 38,300,000 35,900,000 57,800,000 33,100,000 31,800,000 31,500,000 30,200,000 9,900,000 
      other revenue
    		53,400,000 54,900,000 54,800,000 51,400,000 50,600,000 54,500,000 52,000,000 49,700,000 48,200,000 46,100,000 47,000,000 45,600,000 44,600,000 44,000,000 45,900,000 49,000,000 52,000,000 55,300,000 54,700,000 52,900,000 51,300,000 50,900,000 50,100,000 45,800,000 50,400,000 53,200,000 49,100,000 47,700,000 47,100,000 31,500,000 55,400,000 53,600,000 57,200,000 31,600,000 21,200,000 
      total revenue
    		690,000,000 1,142,300,000 700,400,000 633,200,000 621,400,000 708,300,000 624,800,000 588,400,000 551,700,000 568,500,000 521,000,000 516,500,000 495,800,000 515,200,000 512,900,000 555,500,000 620,000,000 697,200,000 687,400,000 738,400,000 644,000,000 657,200,000 568,500,000 518,000,000 554,900,000 601,200,000 536,000,000 535,900,000 519,300,000 545,100,000 581,200,000 592,400,000 587,700,000 537,400,000 384,800,000 
      yoy
    		11.04% 61.27% 12.10% 7.61% 12.63% 24.59% 19.92% 13.92% 11.27% 10.35% 1.58% -7.02% -20.03% -26.10% -25.39% -24.77% -3.73% 6.09% 20.91% 42.55% 16.06% 9.31% 6.06% -3.34% 6.86% 10.29% -7.78% -9.54% -11.64% 1.43% 51.04%     
      qoq
    		-39.60% 63.09% 10.61% 1.90% -12.27% 13.36% 6.19% 6.65% -2.96% 9.12% 0.87% 4.18% -3.77% 0.45% -7.67% -10.40% -11.07% 1.43% -6.91% 14.66% -2.01% 15.60% 9.75% -6.65% -7.70% 12.16% 0.02% 3.20% -4.73% -6.21% -1.89% 0.80% 9.36% 39.66%  
      operating expenses:
    		                                   
      employee compensation and benefits
    		201,000,000 306,200,000 205,400,000 179,000,000 181,500,000 207,000,000 177,000,000 166,300,000 165,800,000 156,100,000 149,200,000 147,700,000 140,300,000 159,400,000 142,500,000 145,000,000 164,600,000 160,100,000 166,200,000 192,400,000 174,600,000 162,300,000 154,900,000 145,800,000 155,600,000 163,100,000 147,900,000 146,500,000 145,000,000 155,800,000 159,500,000 151,000,000 146,700,000 176,700,000 123,600,000 
      long-term incentive plans
    		56,500,000 52,100,000 47,800,000 39,700,000 44,100,000 39,300,000 40,500,000 36,400,000 50,400,000 41,700,000 32,600,000 37,600,000 55,500,000 47,500,000 41,100,000 40,700,000 51,400,000 42,700,000 35,000,000 49,800,000 53,500,000 44,700,000 42,700,000 49,100,000 33,600,000 44,500,000 42,200,000 49,200,000 48,400,000 32,300,000 61,100,000 55,200,000 40,000,000 50,900,000 47,300,000 
      distribution expenses
    		148,400,000 145,700,000 145,600,000 132,900,000 132,100,000 138,200,000 133,700,000 126,600,000 122,400,000 113,300,000 116,000,000 114,600,000 112,000,000 110,000,000 118,700,000 127,800,000 141,800,000 147,300,000 142,100,000 134,800,000 127,400,000 128,700,000 118,800,000 104,700,000 112,200,000 138,100,000 102,800,000 101,500,000 101,900,000 102,400,000 112,300,000 114,700,000 117,300,000 82,800,000 60,700,000 
      investment administration
    		18,500,000 19,000,000 16,800,000 16,900,000 16,100,000 15,500,000 17,700,000 12,800,000 12,200,000 12,300,000 12,400,000 11,100,000 11,600,000 11,800,000 12,500,000 10,300,000 14,800,000 12,900,000 13,000,000 13,100,000 12,600,000 12,600,000 13,100,000 12,600,000 11,700,000 13,800,000 11,200,000 11,100,000 11,800,000 11,600,000 12,200,000 11,700,000 11,400,000 11,700,000 9,700,000 
      marketing
    		12,300,000 14,300,000 10,700,000 12,000,000 9,900,000 14,300,000 8,300,000 9,800,000 8,000,000 8,900,000 9,600,000 9,300,000 8,800,000 6,300,000 5,600,000 7,800,000 7,400,000 11,300,000 7,500,000 6,700,000 6,200,000 3,900,000 5,300,000 3,700,000 6,700,000 10,000,000 5,500,000 8,100,000 7,500,000 12,800,000 7,100,000 9,500,000 8,500,000 8,100,000 10,100,000 
      general, administrative and occupancy
    		128,000,000 107,700,000 84,600,000 80,400,000 75,600,000 87,900,000 77,400,000 66,900,000 68,600,000 87,600,000 73,700,000 72,200,000 61,100,000 69,200,000 64,700,000 72,300,000 73,100,000 77,600,000 65,500,000 65,700,000 63,000,000 66,400,000 65,600,000 58,000,000 65,200,000 60,300,000 67,600,000 67,700,000 65,200,000 62,400,000 59,900,000 59,200,000 72,200,000 54,200,000 67,300,000 
      depreciation and amortization
    		11,400,000 9,900,000 9,400,000 8,500,000 8,500,000 8,600,000 5,500,000 5,300,000 5,100,000 4,900,000 5,800,000 6,100,000 6,100,000 7,400,000 7,100,000 7,700,000 9,500,000 10,200,000 9,800,000 10,100,000 10,600,000 11,600,000 11,600,000 11,000,000 15,000,000 17,100,000 15,200,000 33,300,000 15,000,000 17,800,000 20,800,000 15,800,000 15,400,000 14,800,000 9,400,000 
      total operating expenses
    		576,100,000 654,900,000 528,400,000 469,400,000 467,800,000 510,800,000 460,100,000 424,100,000 432,500,000 424,800,000 399,300,000 398,600,000 395,400,000 447,400,000 392,200,000 411,600,000 495,400,000 539,600,000 439,100,000 513,400,000 451,500,000 430,200,000 412,000,000 411,300,000 887,300,000 446,900,000 392,400,000 417,400,000 394,800,000 395,100,000 432,900,000 417,100,000 411,500,000 399,200,000 328,100,000 
      operating income:
    		113,900,000 122,350,000 172,000,000 163,800,000 153,600,000 112,050,000 164,700,000 164,300,000 119,200,000 85,000,000 121,700,000 117,900,000 100,400,000                       
      interest expense
    		-6,300,000 -6,100,000 -6,300,000 -5,900,000 -5,900,000 -7,200,000 -4,500,000 -3,200,000 -3,100,000 -3,200,000 -3,200,000 -3,200,000 -3,100,000 -3,100,000 -3,100,000 -3,200,000 -3,200,000 -3,200,000 -3,200,000 -3,200,000 -3,200,000 -3,200,000 -3,200,000 -3,200,000 -3,300,000 -3,300,000 -3,500,000 -4,200,000 -4,100,000       
      investment gains
    		12,800,000 44,700,000 55,100,000 52,600,000 -5,500,000 6,900,000 35,000,000 6,400,000 22,500,000 24,800,000 -5,900,000 6,900,000 17,600,000 17,300,000 11,000,000 -109,400,000 -32,200,000 -7,300,000 4,700,000 1,800,000 1,600,000 32,200,000 25,500,000 50,300,000 -50,500,000 12,100,000 4,000,000 4,800,000 13,300,000     6,100,000 9,800,000 
      other non-operating income
    		15,500,000 21,100,000 5,200,000 21,100,000 6,400,000 -27,200,000 -101,600,000 7,600,000 34,600,000 11,900,000 -13,400,000   4,800,000 13,900,000       -200,000 -900,000 8,600,000  7,325,000 4,700,000 28,500,000  13,775,000 2,300,000  38,900,000   
      income before taxes
    		135,900,000 547,100,000 226,000,000 231,600,000 148,600,000 170,000,000 93,600,000 175,100,000 173,200,000 177,200,000 99,200,000 128,600,000 122,000,000 86,800,000 142,500,000 29,600,000 81,400,000 155,100,000 253,400,000 220,900,000 190,800,000 255,800,000 177,900,000 162,400,000 -354,000,000 157,300,000 148,800,000 147,600,000 129,800,000 144,200,000 138,300,000 168,700,000 210,600,000 148,300,000 62,500,000 
      income tax provision
    		-29,100,000 -120,900,000 -45,000,000 -47,200,000 -32,600,000 -48,500,000 -43,600,000 -41,600,000 -32,600,000 -32,900,000 -13,200,000 -28,200,000 -26,000,000 -5,600,000 -27,900,000 -36,700,000 -22,800,000 -29,600,000 -53,300,000   -57,400,000 -40,800,000   -25,225,000 -35,700,000 -35,300,000 -29,900,000       
      net income
    		106,800,000 426,200,000 181,000,000 184,400,000 116,000,000 121,500,000 50,000,000 133,500,000 140,600,000 144,300,000 86,000,000 100,400,000 96,000,000 81,200,000 114,600,000 -7,100,000 58,600,000 125,500,000 200,100,000 141,200,000 147,700,000 198,400,000 137,100,000 132,300,000 -285,200,000 120,400,000 113,100,000 112,300,000 99,900,000 100,800,000 105,100,000 130,500,000 163,200,000 102,200,000 41,500,000 
      yoy
    		-7.93% 250.78% 262.00% 38.13% -17.50% -15.80% -41.86% 32.97% 46.46% 77.71% -24.96% -1514.08% 63.82% -35.30% -42.73% -105.03% -60.32% -36.74% 45.95% 6.73% -151.79% 64.78% 21.22% 17.81% -385.49% 19.44% 7.61% -13.95% -38.79% -1.37% 153.25%     
      qoq
    		-74.94% 135.47% -1.84% 58.97% -4.53% 143.00% -62.55% -5.05% -2.56% 67.79% -14.34% 4.58% 18.23% -29.14% -1714.08% -112.12% -53.31% -37.28% 41.71% -4.40% -25.55% 44.71% 3.63% -146.39% -336.88% 6.45% 0.71% 12.41% -0.89% -4.09% -19.46% -20.04% 59.69% 146.27%  
      net income margin %
    		15.48% 37.31% 25.84% 29.12% 18.67% 17.15% 8.00% 22.69% 25.48% 25.38% 16.51% 19.44% 19.36% 15.76% 22.34% -1.28% 9.45% 18.00% 29.11% 19.12% 22.93% 30.19% 24.12% 25.54% -51.40% 20.03% 21.10% 20.96% 19.24% 18.49% 18.08% 22.03% 27.77% 19.02% 10.78% 
      net loss attributable to noncontrolling interests
    		-15,900,000    4,700,000 300,000 -22,700,000   -23,000,000 7,500,000 -10,600,000 -8,600,000 -16,200,000 -7,000,000 101,000,000 20,100,000 7,000,000 -3,300,000 -3,900,000 7,800,000   -29,400,000 38,200,000 -8,400,000 -1,000,000 -2,900,000 -5,800,000 6,000,000 6,100,000 10,100,000 2,000,000  200,000 
      net income attributable to jhg
    		90,900,000 403,200,000 142,100,000 149,900,000 120,700,000 121,800,000 27,300,000 129,700,000 130,100,000 121,300,000 93,500,000 89,800,000 87,400,000 65,000,000 107,600,000 93,900,000 78,700,000 132,500,000 196,800,000 137,300,000 155,500,000 186,800,000 118,900,000 102,900,000 -247,000,000 112,000,000 112,100,000 109,400,000 94,100,000 106,800,000 111,200,000 140,600,000 165,200,000 99,500,000 41,700,000 
      earnings per share attributable to jhg common shareholders:
    		                                   
      basic
    		0.59 2.61 0.92 0.95 0.77 0.77 0.17 0.81 0.81 0.73 0.56 0.54 0.53 0.39 0.65 0.56 0.47 0.78 1.15 0.8 0.88 1.01 0.65 0.55 -1.35 0.59 0.58 0.56 0.48 0.54 0.55 0.7 0.82 0.49 0.29 
      diluted
    		0.59 2.6 0.92 0.95 0.77 0.76 0.17 0.81 0.81 0.73 0.56 0.54 0.53 0.39 0.65 0.56 0.47 0.78 1.14 0.79 0.88 1.01 0.65 0.55 -1.35 0.59 0.58 0.56 0.48 0.54 0.55 0.7 0.82 0.49 0.28 
      other comprehensive income, net of tax:
    		                                   
      foreign currency translation gains
    		-35.3 0.8 -51 135.1 60.9    -23.6 87.2 -70.7 40.5 44.5   -175.5 -47 3 -59.6 3.2 3.3 112.9 97.4 10.6 -149.1   -37.3 36.8 -49.7 -22.6 -104.7 52.7 41.6 51.2 
      reclassification of foreign currency translation to net income
    		-2.2 2 -0.6 -0.4 0.4 42.7 111.9 5.5                            
      actuarial gains
    		0.7 0.5 0.7 0.7 0.6 0.3 0.4 0.4 0.4 0.175 0.5 0.1 0.1 0.075 0.1 0.1 0.1 0.1 0.1 0.2 0.1 -29.8 0.1 0.1 0.1           
      other comprehensive income, net of tax
    		-36.8 -3.1 -50.9 135.4 61.9 -112 220.7 9.4 -45.2 72.2 -70.2 40.6 44.6   -175.4 -46.9 -19.8 -59.5 3.4 3.4 83.1 97.5 10.7 -149        52.7 41.8 51.2 
      other comprehensive loss attributable to noncontrolling interests
    		4.3 -2.3 24.3 -24.2 -9.4 12 -7.2 -0.4 1.1 -2.5 1 1.6  -1.2 -20.2   0.6 0.8 -0.2 -0.8 8.1 -11 -1.4 5.1 -13.2 0.5 0.1 -0.1 0.3 0.3 0.6 0.2 2.8 15.9 
      other comprehensive income attributable to jhg
    		-32.5 -5.4 -26.6 111.2 52.5 -100 213.5 9 -44.1 69.7 -69.2 42.2 41.4   -151.8 -47.1 -19.2 -58.7 3.2 2.6 91.2 86.5 9.3 -143.9    36.7 -45.7 -22.3 -104.1 52.9 44.6 67.1 
      total comprehensive income
    		70 423.1 130.1 319.8 177.9 9.5 270.7 142.9 95.4 216.5 15.8 141 140.6 182.2 -24.5 -182.5 11.7 105.7 140.6 144.6 151.1 281.5 234.6 143 -434.2 247.7 55.4 75 136.7 54.8 82.5 25.8 215.9 144 92.7 
      total comprehensive income attributable to noncontrolling interests
    		-11.6 -25.3 -14.6 -58.7    -4.2 -9.4             -4.175 -29.2             
      total comprehensive income attributable to jhg
    		58.4 397.8 115.5 261.1 173.2 21.8 240.8 138.7 86 191 24.3 132 128.8 164.8 -51.7 -57.9 31.6 113.3 138.1 140.5 158.1 278 205.4 112.2 -390.9 226.1 54.9 72.2 130.8 61.1 88.9 36.5 218.1 144.1 108.8 
      impairment of assets
    		  8,100,000                                 
      net income attributable to noncontrolling interests
    		 -23,000,000 -38,900,000 -34,500,000    -3,800,000 -10,500,000             -2,350,000 -18,200,000             
      total comprehensive loss attributable to noncontrolling interests
    		    -4.7 12.3 -29.9   -25.5 8.5 -9 -11.8 -17.4 -27.2 124.6 19.9 7.6 -2.5 -4.1 7   -30.8 43.3 -21.6 -0.5 -2.8 -5.9 6.3 6.4 10.7 2.2 0.1 16.1 
      foreign currency translation
    		     22.075 108.4 3.5                            
      reclassification adjustment for foreign currency translation gain included in net income
    		        -22                           
      other non-operating income (expenses)
    		           7,000,000 7,100,000     200,000 3,600,000 -2,700,000 -100,000    32,200,000    -3,900,000   13,900,000  8,700,000  
      other comprehensive income attributable to noncontrolling interests
    		            -3.2   23.6 -0.2                   
      impairment of goodwill and intangible assets
    		                32,800,000 77,500,000  40,800,000 3,600,000   26,400,000 487,300,000           
      operating income
    		             67,800,000 120,700,000 143,900,000 124,600,000 157,600,000 248,300,000 225,000,000 192,500,000 227,000,000 156,500,000 106,700,000 -332,400,000 154,300,000 143,600,000 118,500,000 124,500,000 150,000,000 148,300,000 175,300,000 176,200,000 138,200,000 56,700,000 
      yoy
    		             -56.98% -51.39% -36.04% -35.27% -30.57% 58.66% 110.87% -157.91% 47.12% 8.98% -9.96% -366.99% 2.87% -3.17% -32.40% -29.34% 8.54% 161.55%     
      qoq
    		             -43.83% -16.12% 15.49% -20.94% -36.53% 10.36% 16.88% -15.20% 45.05% 46.67% -132.10% -315.42% 7.45% 21.18% -4.82% -17.00% 1.15% -15.40% -0.51% 27.50% 143.74%  
      operating margin %
    		0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 13.16% 23.53% 25.90% 20.10% 22.60% 36.12% 30.47% 29.89% 34.54% 27.53% 20.60% -59.90% 25.67% 26.79% 22.11% 23.97% 27.52% 25.52% 29.59% 29.98% 25.72% 14.73% 
      foreign currency translation losses
    		             -91 -139.2           -14.55 -57.7         
      other comprehensive loss, net of tax
    		             -90.925 -139.1                     
      other comprehensive loss attributable to jhg
    		             -90.125 -159.3           -14.425 -57.2 -37.2        
      other non-operating expenses
    		               -1,700,000 -7,800,000                   
      income tax benefit
    		                   -79,700,000 -43,100,000   -30,100,000 68,800,000           
      net unrealized gains on available-for-sale securities
    		                                 0.2  
      net unrealized losses on available-for-sale securities
    		                                   
      investment losses
    		                                   
    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 2020-12-31 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 2018-03-31 2017-09-30 2017-06-30 
                                         
        assets
      		                                   
        current assets:
      		                                   
        cash and cash equivalents
      		1,381,000,000 1,253,900,000 996,900,000 882,600,000 1,083,600,000 1,217,200,000 1,483,800,000 1,013,900,000 904,700,000 1,152,400,000 1,121,200,000 996,900,000 843,500,000 1,162,300,000 1,022,900,000 863,100,000 800,800,000 1,107,300,000 933,100,000 966,900,000 826,100,000 1,099,700,000 909,000,000 836,600,000 732,500,000 733,900,000 736,300,000 707,000,000 717,100,000 880,400,000 754,800,000 669,800,000 611,400,000 650,100,000 640,000,000 
        investments
      		489,200,000 364,600,000 395,900,000 380,700,000 362,700,000 337,100,000 305,000,000 258,000,000 240,700,000 334,200,000 293,100,000 312,000,000                        
        fees and other receivables
      		319,200,000 756,500,000 335,100,000 309,300,000 285,800,000 356,600,000 270,700,000 254,900,000 268,400,000 294,000,000 232,800,000 246,900,000 263,300,000 252,900,000 220,500,000 293,500,000 322,600,000 351,600,000 359,500,000 386,000,000 366,500,000 373,600,000 295,100,000 284,500,000 291,300,000 334,800,000 303,200,000 285,800,000 300,200,000 309,200,000 333,300,000 335,700,000 339,900,000 370,900,000 346,300,000 
        oeic and unit trust receivables
      		218,500,000 46,900,000 135,200,000 106,700,000 150,800,000 68,700,000 152,700,000 157,600,000 183,400,000 94,600,000 137,500,000 105,000,000 195,700,000 65,700,000 233,900,000 150,400,000 256,300,000 84,400,000 180,700,000 227,900,000 237,000,000 114,700,000 195,600,000 194,400,000 206,200,000 131,700,000 261,500,000 171,400,000 264,700,000 144,400,000 174,400,000 183,700,000 244,800,000 208,100,000  
        assets of consolidated vies:
      		                                   
        other current assets
      		46,500,000 28,400,000 30,300,000 34,400,000 18,800,000 5,700,000 15,000,000 7,600,000 7,000,000 7,800,000 17,400,000 8,100,000 5,600,000 3,600,000 2,500,000 15,800,000 2,500,000 2,100,000 2,000,000 1,700,000 4,100,000 3,500,000 21,300,000 36,400,000 35,000,000 23,500,000 7,000,000 4,900,000 9,800,000 5,000,000 10,000,000 10,300,000 19,700,000 10,900,000 12,900,000 
        total current assets
      		3,340,000,000 3,814,200,000 3,153,400,000 2,955,300,000 2,752,700,000 2,639,500,000 3,135,300,000 2,377,700,000 2,229,700,000 2,455,600,000 2,288,100,000 2,292,700,000 2,293,000,000 2,214,800,000 2,115,000,000 2,788,600,000 2,205,900,000 2,409,200,000 2,299,300,000 2,187,000,000 1,998,900,000 2,193,700,000 1,981,700,000 2,338,600,000 2,244,500,000 2,580,800,000 2,026,300,000 1,859,800,000 1,960,700,000 2,019,100,000 1,996,400,000 1,966,400,000 2,052,200,000 2,073,700,000 2,061,300,000 
        non-current assets:
      		                                   
        property, equipment and software
      		32,600,000 33,100,000 34,600,000 36,600,000 37,400,000 39,400,000 38,800,000 39,300,000 41,700,000 44,200,000 45,300,000 48,300,000 49,800,000 51,800,000 49,000,000 52,600,000 54,600,000 63,300,000 63,700,000 66,400,000 74,000,000 77,900,000 81,400,000 82,500,000 84,000,000 84,700,000 74,400,000 72,600,000 72,600,000 69,500,000 65,000,000 65,000,000 69,400,000 74,300,000 76,500,000 
        intangible assets
      		2,517,500,000 2,527,100,000 2,531,000,000 2,540,500,000 2,480,400,000 2,473,300,000 2,448,300,000 2,427,600,000 2,426,700,000 2,431,300,000 2,415,900,000 2,430,300,000 2,422,200,000 2,414,700,000 2,425,500,000 2,455,700,000 2,488,900,000 2,542,700,000 2,620,900,000 2,637,300,000 2,681,900,000 2,686,300,000 2,657,500,000 2,638,600,000 2,651,700,000 3,088,600,000 3,063,700,000 3,089,700,000 3,125,400,000 3,123,300,000 3,146,200,000 3,168,000,000 3,205,600,000 3,210,300,000 3,202,100,000 
        goodwill
      		1,608,400,000 1,621,200,000 1,621,500,000 1,633,800,000 1,587,200,000 1,550,400,000 1,351,500,000 1,283,800,000 1,282,200,000 1,290,300,000 1,259,800,000 1,287,300,000 1,269,700,000 1,253,100,000 1,206,000,000 1,259,700,000 1,316,800,000 1,374,300,000 1,370,800,000 1,389,900,000 1,389,800,000 1,383,900,000 1,341,900,000 1,310,400,000 1,307,100,000 1,504,300,000 1,454,700,000 1,477,400,000 1,493,600,000 1,478,000,000 1,495,100,000 1,504,500,000 1,548,500,000 1,498,200,000 1,474,900,000 
        retirement benefit asset
      		71,400,000 72,000,000 77,300,000 78,200,000 73,100,000 70,300,000 93,800,000 87,900,000 87,400,000 87,600,000 100,700,000 104,400,000 101,000,000 97,900,000 135,800,000 147,800,000 160,500,000 165,100,000 189,800,000 193,900,000 193,200,000 191,300,000 209,200,000 199,800,000 200,300,000 214,000,000 204,600,000 209,600,000 213,000,000 206,500,000 204,900,000 203,200,000 211,200,000 206,300,000 196,000,000 
        other non-current assets
      		232,600,000 219,400,000 197,100,000 207,100,000 186,600,000 190,200,000 196,100,000 197,100,000 202,400,000 187,600,000 189,900,000 225,200,000 220,400,000 205,500,000 192,800,000 195,200,000 196,600,000 172,900,000 158,700,000 156,000,000 156,900,000 157,700,000 155,400,000 155,300,000 156,300,000 149,300,000 142,200,000 151,000,000 157,800,000 15,500,000 15,900,000 16,300,000 17,100,000 24,400,000 22,000,000 
        total assets
      		7,802,500,000 8,287,000,000 7,614,900,000 7,451,500,000 7,117,400,000 6,963,100,000 7,263,800,000 6,413,400,000 6,270,100,000 6,496,600,000 6,299,700,000 6,388,200,000 6,356,100,000 6,237,800,000 6,124,100,000 6,899,600,000 6,423,300,000 6,727,500,000 6,703,200,000 6,630,500,000 6,494,700,000 6,690,800,000 6,427,100,000 6,725,200,000 6,643,900,000 7,621,700,000 6,965,900,000 6,860,100,000 7,023,100,000 6,911,900,000 6,923,500,000 6,923,400,000 7,104,000,000 7,087,200,000 7,032,800,000 
        liabilities
      		                                   
        current liabilities:
      		                                   
        accounts payable and accrued liabilities
      		383,100,000 337,500,000 312,200,000 304,400,000 278,000,000 266,100,000 262,300,000 214,900,000 206,500,000 231,400,000 205,000,000 212,500,000 218,500,000 232,600,000 214,500,000 222,700,000 253,400,000 271,600,000 229,400,000 222,200,000 261,700,000 232,100,000 203,600,000 242,200,000 221,600,000 246,000,000 246,600,000 248,400,000 263,300,000 233,200,000 220,900,000 214,900,000 290,600,000 289,100,000 330,600,000 
        current portion of accrued compensation, benefits and staff costs
      		199,600,000 505,200,000 301,200,000 207,900,000 171,400,000 388,600,000 285,600,000 198,600,000 165,300,000 297,900,000 232,300,000 176,800,000 151,200,000 300,800,000 230,200,000 180,200,000 174,700,000 420,000,000 351,000,000 275,200,000 223,500,000 371,000,000 274,400,000 202,200,000 172,300,000 335,700,000 254,800,000 203,800,000 167,300,000 345,400,000 287,100,000 228,000,000 206,400,000 275,500,000 205,100,000 
        oeic and unit trust payables
      		217,600,000 46,500,000 134,800,000 105,700,000 151,600,000 75,600,000 158,900,000 164,400,000 191,900,000 98,500,000 144,100,000 112,400,000 202,800,000 72,800,000 239,800,000 157,100,000 263,500,000 92,200,000 189,600,000 231,800,000 243,500,000 121,500,000 203,300,000 210,200,000 213,700,000 130,900,000 260,200,000 178,400,000 274,700,000 143,300,000 166,700,000 181,400,000 242,000,000 199,100,000  
        liabilities of consolidated vies:
      		                                   
        total current liabilities
      		858,600,000 912,500,000 784,300,000 658,400,000 629,100,000 735,000,000 1,016,400,000 586,900,000 568,400,000 631,000,000 595,600,000 506,700,000 576,400,000 610,500,000 689,600,000 574,600,000 694,100,000 786,400,000 772,900,000 733,400,000 734,200,000 727,800,000 691,600,000 735,600,000 690,700,000 769,700,000 768,600,000 635,400,000 716,300,000 728,400,000 689,700,000 644,000,000 770,300,000 870,200,000 948,200,000 
        non-current liabilities:
      		                                   
        accrued compensation, benefits and staff costs
      		20,300,000 48,500,000 36,000,000 26,700,000 17,300,000 38,800,000 32,700,000 23,700,000 15,200,000 45,000,000 35,900,000 29,900,000 22,800,000 46,900,000 36,800,000 29,600,000 22,000,000 45,700,000 36,900,000 32,300,000 22,200,000 53,700,000 45,000,000 35,100,000 30,900,000 59,400,000 50,300,000 43,100,000 44,600,000 54,700,000 48,200,000 38,200,000 27,500,000 29,300,000 21,000,000 
        long-term debt
      		395,600,000 395,500,000 395,400,000 395,200,000 395,200,000 395,000,000 396,200,000 303,100,000 303,900,000 304,600,000 305,300,000 306,000,000 306,800,000 307,500,000 308,200,000 308,900,000 309,700,000 310,400,000 311,100,000 311,900,000 312,600,000 313,300,000 314,000,000 314,800,000 315,500,000 316,200,000 316,900,000 317,700,000 318,400,000 319,100,000 319,800,000 320,600,000 321,300,000 322,700,000 323,500,000 
        deferred tax liabilities
      		622,200,000 624,800,000 575,300,000 577,200,000 570,900,000 569,300,000 576,300,000 569,400,000 569,200,000 570,800,000 568,700,000 578,900,000 576,400,000 574,600,000 597,500,000 606,200,000 617,000,000 619,200,000 644,700,000 648,200,000 627,200,000 627,400,000 613,300,000 600,500,000 602,700,000 729,100,000 717,700,000 727,600,000 730,700,000 729,900,000 744,800,000 748,100,000 754,300,000 1,098,200,000 1,091,800,000 
        other non-current liabilities
      		181,100,000 185,700,000 144,600,000 149,400,000 142,900,000 141,900,000 115,500,000 106,500,000 109,000,000 87,400,000 86,700,000 92,100,000 95,200,000 98,800,000 89,300,000 107,000,000 121,300,000 134,400,000 125,600,000 133,400,000 139,200,000 144,300,000 139,500,000 137,400,000 142,600,000 158,800,000 148,100,000 158,600,000 197,300,000 79,200,000 78,800,000 81,200,000 81,300,000 96,800,000 94,700,000 
        total liabilities
      		2,077,800,000 2,167,000,000 1,935,600,000 1,806,900,000 1,755,400,000 1,880,000,000 2,137,100,000 1,591,900,000 1,568,000,000 1,641,100,000 1,595,100,000 1,516,600,000 1,580,700,000 1,641,300,000 1,725,200,000 1,630,500,000 1,768,700,000 1,900,900,000 1,895,900,000 1,864,000,000 1,840,200,000 1,871,200,000 1,807,800,000 1,827,600,000 1,786,500,000 2,037,600,000 2,005,100,000 1,886,000,000 2,011,000,000 1,915,000,000 1,885,800,000 1,836,700,000 1,959,400,000 2,424,000,000 2,485,700,000 
        commitments and contingencies
      		                                   
        redeemable noncontrolling interests
      		381,200,000 844,500,000 771,300,000 744,700,000 535,500,000 365,000,000 493,500,000 346,700,000 274,700,000 317,200,000 245,900,000 389,800,000 384,700,000 233,900,000 153,100,000 921,100,000 150,700,000 163,400,000 145,100,000 124,900,000 99,300,000 85,800,000 86,200,000 468,700,000 464,000,000 677,900,000 216,200,000 153,600,000 137,000,000 136,100,000 139,200,000 177,800,000 217,700,000 210,800,000 172,000,000 
        equity
      		                                   
        common stock
      		231,100,000 231,100,000 232,000,000 234,300,000 236,300,000 237,200,000 237,800,000 239,500,000 241,000,000 245,000,000 248,500,000 248,500,000 248,500,000 248,500,000 248,500,000 248,500,000 251,700,000 253,600,000 255,900,000 258,500,000 258,500,000 270,600,000 272,100,000 275,800,000 277,400,000 280,500,000 281,200,000 287,500,000 292,700,000 294,600,000 297,900,000 300,600,000 300,600,000 300,600,000 300,600,000 
        additional paid-in capital
      		3,744,700,000  3,711,900,000 3,689,900,000 3,763,900,000  3,694,800,000 3,675,400,000 3,670,000,000  3,704,400,000 3,687,100,000 3,663,400,000                       
        treasury shares, 42,327 and 46,306 shares held at march 31, 2026, and december 31, 2025, respectively
      		-1,100,000                                   
        accumulated other comprehensive loss, net of tax
      		-386,000,000 -353,500,000 -348,100,000 -321,500,000 -432,700,000 -485,200,000 -385,200,000 -598,700,000 -607,700,000 -563,600,000 -633,300,000 -564,100,000 -606,300,000 -647,700,000 -747,500,000 -595,000,000 -443,200,000 -396,100,000 -376,900,000 -318,200,000 -321,400,000 -324,000,000 -415,200,000 -501,700,000 -511,000,000 -367,100,000 -481,200,000 -424,000,000 -386,800,000 -423,500,000      
        retained earnings
      		1,589,000,000 1,498,400,000 1,182,400,000 1,167,000,000 1,128,400,000 1,095,100,000 1,086,600,000 1,159,500,000 1,125,000,000 1,135,500,000 1,137,400,000 1,108,600,000 1,083,400,000 1,060,700,000 1,060,600,000 1,024,000,000 1,048,000,000 1,073,600,000 1,070,300,000 1,009,700,000 937,700,000 1,062,100,000 965,800,000 959,200,000 942,800,000 1,284,100,000 1,250,400,000 1,280,800,000 1,309,900,000 1,314,500,000 1,322,900,000 1,324,900,000 1,255,900,000 743,600,000 708,000,000 
        total shareholders’ equity
      		5,177,700,000 5,108,400,000 4,777,000,000 4,768,600,000 4,694,900,000 4,591,500,000 4,633,000,000 4,474,600,000 4,427,200,000 4,538,100,000 4,455,900,000 4,479,000,000 4,387,900,000 4,359,800,000 4,243,000,000 4,345,200,000 4,501,100,000 4,647,800,000 4,646,600,000 4,626,000,000 4,539,400,000 4,716,400,000 4,515,500,000 4,410,800,000 4,375,000,000 4,886,500,000 4,722,100,000 4,798,100,000 4,852,500,000 4,839,300,000 4,871,900,000 4,880,600,000 4,892,200,000 4,409,200,000 4,331,100,000 
        nonredeemable noncontrolling interests
      		165,800,000 167,100,000 131,000,000 131,300,000 131,600,000 126,600,000 200,000 200,000 200,000 200,000 2,800,000 2,800,000 2,800,000 2,800,000 2,800,000 2,800,000 2,800,000 15,400,000 15,600,000 15,600,000 15,800,000 17,400,000 17,600,000 18,100,000 18,400,000 19,700,000 22,500,000 22,400,000 22,600,000 21,500,000 26,600,000 28,300,000 34,700,000 43,200,000 44,000,000 
        total equity
      		5,343,500,000 5,275,500,000 4,908,000,000 4,899,900,000 4,826,500,000 4,718,100,000 4,633,200,000 4,474,800,000 4,427,400,000 4,538,300,000 4,458,700,000 4,481,800,000 4,390,700,000 4,362,600,000 4,245,800,000 4,348,000,000 4,503,900,000 4,663,200,000 4,662,200,000 4,641,600,000 4,555,200,000 4,733,800,000 4,533,100,000 4,428,900,000 4,393,400,000 4,906,200,000 4,744,600,000 4,820,500,000 4,875,100,000 4,860,800,000 4,898,500,000 4,908,900,000 4,926,900,000 4,452,400,000 4,375,100,000 
        total liabilities, redeemable noncontrolling interests and equity
      		7,802,500,000 8,287,000,000 7,614,900,000 7,451,500,000 7,117,400,000 6,963,100,000 7,263,800,000 6,413,400,000 6,270,100,000 6,496,600,000 6,299,700,000 6,388,200,000 6,356,100,000 6,237,800,000 6,124,100,000 6,899,600,000 6,423,300,000 6,727,500,000 6,703,200,000 6,630,500,000 6,494,700,000 6,690,800,000 6,427,100,000 6,725,200,000 6,643,900,000 7,621,700,000 6,965,900,000 6,860,100,000 7,023,100,000 6,911,900,000 6,923,500,000 6,923,400,000 7,104,000,000 7,087,200,000 7,032,800,000 
        additional paid-in-capital
      		 3,733,600,000    3,745,300,000    3,722,300,000    3,706,600,000 3,684,800,000 3,673,600,000 3,684,900,000 3,771,800,000 3,755,400,000 3,743,600,000 3,769,000,000 3,815,000,000 3,804,000,000 3,792,100,000 3,803,700,000 3,828,500,000 3,815,800,000 3,801,600,000 3,802,100,000 3,824,500,000 3,800,100,000 3,783,500,000 3,786,000,000 3,823,700,000 3,824,500,000 
        treasury shares, 46,306 and 36,171 shares held at december 31, 2025, and december 31, 2024, respectively
      		 -1,200,000                                  
        treasury shares, 45,325 and 36,171 shares held at september 30, 2025, and december 31, 2024, respectively
      		  -1,200,000                                 
        treasury shares, 43,152 and 36,171 shares held at june 30, 2025, and december 31, 2024, respectively
      		   -1,100,000                                
        treasury shares, 39,270 and 36,171 shares held at march 31, 2025, and december 31, 2024, respectively
      		    -1,000,000                               
        treasury shares, 36,171 and 41,444 shares held at december 31, 2024, and december 31, 2023, respectively
      		     -900,000                              
        current portion of long-term debt
      		      302,400,000                         9,400,000 9,500,000 83,300,000 115,400,000 
        treasury shares, 38,478 and 41,444 shares held at september 30, 2024, and december 31, 2023, respectively
      		      -1,000,000                             
        retirement benefit obligations
      		       2,300,000 2,300,000 2,300,000 2,900,000 3,000,000 3,100,000 3,000,000 3,800,000 4,200,000 4,600,000 4,800,000 4,700,000 4,800,000 4,800,000 4,700,000 4,400,000 4,200,000 4,100,000 4,400,000 3,500,000 3,600,000 3,700,000 3,700,000 4,500,000 4,600,000 4,700,000 6,800,000 6,500,000 
        treasury shares, 40,439 and 41,444 shares held at june 30, 2024, and december 31, 2023, respectively
      		       -1,100,000                            
        treasury shares, 42,586 and 41,444 shares held at march 31, 2024, and december 31, 2023, respectively
      		        -1,100,000                           
        treasury shares, 41,444 and 312,469 shares held at december 31, 2023, and december 31, 2022, respectively
      		         -1,100,000                          
        treasury shares, 42,132 and 312,469 shares held at september 30, 2023, and december 31, 2022, respectively
      		          -1,100,000                         
        treasury shares, 43,564 and 312,469 shares held at june 30, 2023, and december 31, 2022, respectively
      		           -1,100,000                        
        investment securities
      		            388,200,000 261,600,000 284,100,000 250,200,000 419,300,000 451,400,000 445,200,000 270,200,000 255,500,000 268,100,000 290,800,000 219,100,000 250,600,000 253,500,000 224,300,000 246,800,000 270,700,000 291,800,000 310,300,000 313,400,000 287,600,000 276,400,000 274,100,000 
        treasury shares, 43,318 and 312,469 shares held at march 31, 2023, and december 31, 2022, respectively
      		            -1,100,000                       
        treasury shares, 312,469 and 1,133,934 shares held at december 31, 2022, and december 31, 2021, respectively
      		             -8,300,000                      
        treasury shares, 69,806 and 1,133,934 shares held at september 30, 2022, and december 31, 2021, respectively
      		              -3,400,000                     
        treasury shares, 120,751 and 1,133,934 shares held at june 30, 2022, and december 31, 2021, respectively
      		               -5,900,000                    
        treasury shares, 830,071 and 1,133,934 shares held at march 31, 2022, and december 31, 2021, respectively
      		                -40,300,000                   
        treasury shares, 1,133,934 and 2,548,063 shares held at december 31, 2021, and december 31, 2020, respectively
      		                 -55,100,000                  
        treasury shares, 1,208,917 and 2,548,063 shares held at september 30, 2021, and december 31, 2020, respectively
      		                  -58,100,000                 
        treasury shares, 1,406,401 and 2,548,063 shares held at june 30, 2021, and december 31, 2020, respectively
      		                   -67,600,000                
        treasury shares, 2,483,056 and 2,548,063 shares held at march 31, 2021, and december 31, 2020, respectively
      		                    -104,400,000               
        treasury shares, 2,548,063 and 3,545,812 shares held at december 31, 2020 and 2019, respectively
      		                     -107,300,000              
        treasury shares
      		                      -111,200,000 -114,600,000 -137,900,000 -139,500,000 -144,100,000 -147,800,000 -165,400,000 -170,800,000      
        oeic and unit trust debtors
      		                                  274,800,000 
        oeic and unit trust creditors
      		                                  273,200,000 
      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 2020-12-31 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 2018-03-31 2017-09-30 
                                          
          cash flows from:
        		                                  
          operating activities:
        		                                  
          net income
        		106,800,000 426,200,000 181,000,000 184,400,000 116,000,000 121,500,000 50,000,000 133,500,000 140,600,000 144,300,000 86,000,000 100,400,000 96,000,000 81,200,000 141,800,000 51,499,941.4 58.6 125,500,000 200,100,000 141,200,000 147,700,000 198,400,000 137,100,000 132,300,000 -285,200,000 120,400,000 113,100,000 112,300,000 99,900,000 100,800,000 105,100,000 130,500,000 163,200,000 102,200,000 
          adjustments to reconcile net income to net cash from operating activities:
        		                                  
          depreciation and amortization
        		11,400,000 9,900,000 9,400,000 8,500,000 8,500,000 8,600,000 5,500,000 5,300,000 5,100,000 4,900,000 5,800,000 6,100,000 6,100,000 7,400,000 7,100,000 17,199,990.5 9.5 10,200,000 9,800,000 10,100,000 10,600,000 11,600,000 11,600,000 11,000,000 15,000,000 17,100,000 15,200,000 15,300,000 15,000,000 17,800,000 20,800,000 15,800,000 15,400,000 14,800,000 
          stock-based compensation plan expense
        		19,800,000 21,500,000 21,700,000 18,200,000 18,700,000 20,400,000 18,100,000 15,700,000 17,500,000 17,600,000 16,900,000 21,300,000 21,600,000 22,600,000 22,200,000 45,799,977.4 22.6 17,500,000 16,000,000 17,100,000 17,600,000 14,500,000 18,100,000 17,500,000 16,600,000 17,500,000 18,600,000 18,000,000 20,100,000 17,900,000 23,300,000 24,800,000 16,400,000  
          reclassification of foreign currency translation to net income
        		-2,200,000 2,000,000   400,000 42,700,000 111,900,000                            
          investment losses
        		-12,800,000    5,500,000     -24,800,000 5,900,000 -6,900,000 -17,600,000 -17,300,000      -1,800,000 -1,600,000   -50,300,000 50,500,000  -4,000,000 -4,800,000 -13,300,000      
          other
        		-1,500,000 -9,400,000 7,300,000 -5,000,000 -4,200,000 -4,200,000 -2,400,000 -2,600,000 -1,900,000 -1,700,000 -1,500,000 -1,100,000 -1,400,000 -800,000 -17,900,000 9,599,988.7 11.3 -1,000,000 -1,500,000 -3,500,000 -2,400,000 -5,800,000 7,500,000 -9,000,000 -13,200,000 -600,000 -1,500,000 -5,800,000 -3,200,000      
          changes in operating assets and liabilities:
        		                                  
          oeic and unit trust receivables and payables
        		-900,000 0 700,000 -1,900,000 -6,100,000 700,000 -600,000 -1,600,000 4,500,000 -2,700,000 -800,000   1,100,000 -700,000 -1,099,999.4 -0.6 -1,100,000 5,000,000 -2,600,000 -300,000 -900,000 -8,000,000 8,200,000 8,300,000 600,000 -8,400,000 -2,900,000 11,100,000   500,000 2,300,000  
          fees receivable and other assets
        		404,400,000                                  
          other accruals and liabilities
        		-290,200,000 276,600,000 122,800,000 11,600,000 -223,200,000 120,300,000 105,300,000 51,300,000 -173,500,000 103,300,000 51,300,000 14,700,000 -191,400,000 112,000,000 15,100,000 -227,199,768 -232 99,600,000 74,300,000 83,400,000 -153,900,000 142,100,000 38,700,000 71,300,000 -163,400,000 74,300,000 60,700,000 -22,600,000 -169,400,000     24,000,000 
          net operating activities
        		234,800,000 322,700,000 258,800,000 135,200,000 2,800,000 247,300,000 228,500,000 223,800,000 -5,000,000 161,500,000 216,900,000 171,400,000 -108,200,000 146,000,000 221,900,000 105,400,057.5 -57.5 281,200,000 319,400,000 269,000,000 25,800,000 220,200,000 183,000,000 204,600,000 37,900,000 207,000,000 173,200,000 117,700,000 -34,700,000 243,300,000 246,600,000 119,200,000 61,700,000 156,600,000 
          investing activities:
        		                                  
          purchases of:
        		                                  
          investments
        		-89,700,000 54,700,000 26,200,000 -121,600,000 -44,800,000 57,200,000 -52,000,000 -32,300,000 -9,900,000 -11,200,000 30,700,000                        
          property, equipment and software
        		-3,200,000 -2,300,000 -2,400,000 -2,000,000 -1,900,000 -3,800,000 -2,600,000 -1,900,000 -1,800,000 -2,400,000 -1,900,000 -4,500,000 -2,000,000 -7,300,000 -2,800,000 -7,499,997.1 -2.9 -4,500,000 -4,800,000 500,000 -1,600,000 -1,300,000 -4,100,000 -4,200,000 -8,200,000 -14,600,000 -8,400,000 -7,300,000 -7,500,000      
          investments by consolidated seeded investment products
        		-73,100,000 -4,100,000 50,400,000 -126,000,000 -181,700,000 77,600,000 -114,900,000 -26,000,000 -38,100,000 -55,100,000 -6,800,000                        
          seed capital hedges
        		10,100,000 -33,500,000                                 
          acquisitions, net of cash acquired
        		 2,900,000 -1,100,000 -1,800,000 -2,400,000 -109,700,000                             
          net investing activities
        		-159,700,000 17,700,000 39,400,000 -290,800,000 -227,300,000 44,300,000 -215,000,000 -60,400,000 -54,300,000 -86,800,000 16,000,000 -23,000,000 -235,100,000 -52,500,000 51,800,000 59,200,016.9 -16.9 -17,500,000 -222,900,000 -66,300,000 23,400,000 119,400,000 135,000,000 -166,800,000 41,800,000 -364,700,000 -36,100,000 -39,800,000 51,300,000 13,000,000 31,900,000 44,400,000 11,600,000 -45,300,000 
          financing activities:
        		                                  
          purchase of common stock for stock-based compensation plans, including net settlement of equity awards
        		-8,700,000                                  
          purchase of common stock for the share buyback program
        		 -26,600,000 -66,500,000 -49,500,000 -26,800,000 -53,100,000 -39,700,000 -34,100,000 -81,300,000                          
          dividends paid to shareholders
        		 -61,500,000 -62,400,000 -63,800,000 -61,500,000 -62,000,000 -62,300,000 -62,600,000 -63,200,000 -64,700,000 -64,700,000 -64,600,000 -64,700,000 -64,900,000 -64,700,000 -129,799,935.7 -64.3 -64,500,000 -64,800,000 -65,000,000 -61,700,000 -64,800,000 -65,800,000 -66,100,000 -66,200,000 -66,300,000 -67,800,000 -68,600,000 -69,700,000      
          third-party capital invested into consolidated seeded investment products
        		58,500,000 -4,600,000 -33,400,000 134,700,000 170,600,000 -98,700,000 130,500,000 56,100,000 35,200,000                          
          net financing activities
        		48,900,000 -87,800,000 -163,200,000 -67,700,000 79,600,000 -518,900,000 424,600,000 -50,900,000 -179,200,000 -76,100,000 -91,500,000 1,900,000 13,800,000 -3,900,000 -64,500,000 -350,699,785.2 -214.8 -90,700,000 -112,900,000 -62,000,000 -322,500,000 -191,200,000 -291,200,000 37,400,000 -46,000,000 176,000,000 -107,500,000 -77,200,000 -198,300,000      
          cash and cash equivalents:
        		                                  
          effect of foreign exchange rate changes
        		-7,900,000 0 -5,900,000 29,400,000 15,800,000 -42,700,000 31,900,000 0 -7,300,000 29,200,000 -25,500,000 11,800,000 15,400,000 51,100,000 -47,200,000 -58,799,984 -16 1,000,000 -16,300,000 0 1,800,000 33,200,000 19,300,000 3,000,000 -28,000,000 4,500,000 13,100,000 -9,600,000 5,000,000    6,100,000 -2,000,000 
          net change
        		116,100,000 252,600,000 129,100,000 -193,900,000 -129,100,000 -270,000,000 470,000,000 112,500,000 -245,800,000 27,800,000 115,900,000 162,100,000 -314,100,000 140,700,000 162,000,000 -244,899,694.8 -305.2 174,000,000 -32,700,000 140,700,000 -271,500,000 181,600,000 46,100,000 78,200,000 5,700,000 22,800,000 42,700,000 -8,900,000 -176,700,000 120,500,000    16,000,000 
          at beginning of period
        		1,293,500,000 0 0 0 1,234,800,000 0 0 0 1,168,100,000 0 0 0 1,176,400,000 0 0 1,118,598,881.4 1,118.6 0 0 0 1,108,100,000 0 0 0 796,500,000 0 0 0 916,600,000  0 0 794,200,000 0 
          at end of period
        		1,409,600,000 252,600,000 129,100,000 -193,900,000 1,105,700,000 -270,000,000 470,000,000 112,500,000 922,300,000 27,800,000 115,900,000 162,100,000 862,300,000 140,700,000 162,000,000 873,699,186.6 813.4 174,000,000 -32,700,000 140,700,000 836,600,000 181,600,000 46,100,000 78,200,000 802,200,000 22,800,000 42,700,000 -8,900,000 739,900,000  92,300,000 38,400,000 665,400,000 16,000,000 
          supplemental cash flow information:
        		                                  
          cash paid for interest
        		10,900,000 0 10,900,000 0 10,900,000 3,900,000 7,300,000 0 7,300,000 0 7,300,000 0 7,300,000 0 7,300,000 7,299,992.7 7.3 0 7,300,000 0 7,300,000 0 7,300,000 0 7,300,000 0 7,300,000 0 7,300,000 0 7,400,000 0 7,400,000 7,700,000 
          cash paid for income taxes, net of refunds
        		6,100,000 42,300,000 37,200,000 88,000,000 3,500,000 38,300,000 39,100,000 49,700,000 6,200,000 25,200,000 23,100,000 41,900,000 14,100,000 18,600,000 29,300,000 92,799,981.6 18.4 48,400,000 56,100,000 104,000,000 9,100,000 28,400,000 97,700,000 28,000,000 4,900,000 16,300,000 29,000,000 102,100,000 12,600,000 40,800,000 39,000,000 78,500,000 26,400,000 30,700,000 
          reconciliation of cash and cash equivalents:
        		                                  
          cash and cash equivalents
        		1,381,000,000 257,000,000 114,300,000 -201,000,000 1,083,600,000 -266,600,000 469,900,000 109,200,000 904,700,000 31,200,000 124,300,000 153,400,000 843,500,000 139,400,000 159,800,000 863,099,199.2 800.8 174,200,000 -33,800,000 140,800,000 826,100,000 190,700,000 72,400,000 104,100,000 732,500,000 -2,400,000 29,300,000 -10,100,000 717,100,000 125,600,000 85,000,000 58,400,000 611,400,000 10,100,000 
          cash and cash equivalents held in consolidated vies
        		28,600,000 -4,400,000 14,800,000 7,100,000 22,100,000 -3,400,000 100,000 3,300,000 17,600,000 -3,400,000 -8,400,000 8,700,000 18,800,000 1,300,000 2,200,000 10,599,987.4 12.6 -200,000 1,100,000 -100,000 10,500,000 -9,100,000 -26,300,000 -25,900,000 69,700,000 25,200,000 13,400,000 1,200,000 22,800,000 -5,100,000 7,300,000 -20,000,000 54,000,000  
          total cash and cash equivalents
        		1,409,600,000 252,600,000 129,100,000 -193,900,000 1,105,700,000 -270,000,000 470,000,000 112,500,000 922,300,000 27,800,000 115,900,000 162,100,000 862,300,000 140,700,000 162,000,000 873,699,186.6 813.4 174,000,000 -32,700,000 140,700,000 836,600,000 181,600,000 46,100,000 78,200,000 802,200,000 22,800,000 42,700,000 -8,900,000 739,900,000 120,500,000 92,300,000 38,400,000 665,400,000 16,000,000 
          deferred income taxes
        		 48,100,000 -300,000   2,100,000 500,000 -1,500,000 1,300,000 -900,000 -6,200,000 0 1,000,000 -23,500,000 8,800,000 399,999.8 0.2 -26,400,000 1,400,000 22,400,000 400,000 5,000,000 7,900,000 -6,900,000 -110,800,000 1,300,000 -5,500,000 -900,000 400,000      
          provision for credit losses and contingent consideration adjustments
        		         -1,600,000                         
          investment gains
        		 -44,700,000 -55,100,000    -35,000,000 -6,400,000 -22,500,000       141,599,967.8 32.2 7,300,000    -32,200,000          16,600,000 700,000  
          purchase of common stock for stock-based compensation plans
        		 300,000 -400,000 -93,800,000 -2,600,000 200,000 400,000 -10,500,000 -69,900,000 -100,000 200,000 0 -57,500,000 -7,100,000 -9,700,000 -96,999,905.5 -94.5 300,000 -100,000 -10,500,000 -61,500,000 -700,000 -2,700,000 -5,900,000 -39,800,000 -200,000 -700,000 -1,000,000 -37,100,000      
          issuance of long-term debt
        		     -1,300,000                             
          repayment of current portion of long-term debt
        		                                  
          other assets
        		  -28,100,000 -28,200,000 87,200,000 -57,900,000 -24,800,000 24,000,000 46,500,000 -74,800,000 34,600,000 37,100,000 -22,100,000 -73,100,000 89,200,000 25,500,001.1 -1.1 -30,100,000 19,500,000 -37,600,000 4,100,000 -108,300,000 -5,500,000 3,000,000 57,400,000 -17,500,000 -13,400,000 12,700,000 1,800,000 24,600,000 -8,700,000 -900,000 119,500,000  
          cash paid on settled seed capital hedges
        		      -28,300,000 -200,000 -5,200,000         -14,400,000                 
          cash received on settled seed capital hedges
        		    2,600,000     -22,200,000 -6,000,000 -6,200,000 -3,100,000 13,300,000 17,700,000     -6,200,000 -1,800,000              
          impairment of intangible assets
        		                                  
          loss on sale of intech
        		              0 9,099,990.9 9.1                  
          sales (purchases) of:
        		                                  
          long-term note with intech
        		         4,100,000 0                        
          proceeds from sale of subsidiaries
        		                                  
          reclassification adjustment for foreign currency translation gain included in net income
        		        -22,000,000                          
          contributions to pension plans in excess of costs recognized
        		        -600,000 -2,100,000 -400,000 -500,000 -400,000 600,000 100,000 200,000.1 -0.1 2,200,000 -500,000   -4,200,000 -200,000 -100,000 -100,000 6,000,000 -1,600,000 -1,600,000 -1,800,000      
          dividends received from equity method investments
        		        700,000  0                        
          principal payments under capital lease obligations
        		         0 0 -200,000 -200,000 -200,000 -400,000 -799,999.8 -0.2 -200,000 0   -300,000 200,000 -300,000 -200,000 -300,000 -200,000 -300,000 -300,000      
          dividends received from equity-method investments
        		            700,000 0 0 499,999.5 0.5 100,000 0 0 1,100,000 0 -100,000 0 500,000 -100,000 0 0 500,000      
          receipt of contingent consideration payments from sale of subsidiaries
        		         0 0                        
          proceeds from stock-based compensation plans
        		         500,000 200,000   1,000,000 1,100,000 2,199,999.5 0.5 1,600,000 5,400,000 4,700,000 800,000 1,100,000        8,200,000 100,000 100,000 200,000 300,000 
          purchase of common stock for the share buyback program and from dai-ichi life
        		                                  
          revolving credit facility issuance costs
        		         0 -100,000                        
          distributions to noncontrolling interests
        		             0 0 -999,998.7 -1.3 -100,000 -100,000 -200,000 -100,000 -300,000 0 -400,000 -100,000 -400,000 -400,000 -400,000 -100,000      
          proceeds from sale of intech
        		              9,900,000 4,999,995 5                  
          purchase of common stock for share buyback program
        		                     -27,400,000 -50,200,000 -22,000,000 -31,200,000 -12,500,000 -81,300,000 -75,200,000 -30,900,000      
          third-party sales (purchases) in consolidated seeded investment products
        		          -27,100,000 65,400,000 136,200,000 67,300,000 9,200,000 -25,399,988.3 -11.7                  
          investment securities
        		            -107,500,000 9,800,000 31,100,000 3,700,034.2 -34.2 19,400,000 -195,000,000 -52,900,000 51,400,000 86,000,000 -28,700,000 -20,800,000 98,300,000 -79,500,000 23,500,000 38,200,000 19,300,000 -3,000,000 -5,800,000    
          investment securities by consolidated seeded investment products
        		            -123,200,000 -65,600,000 -2,900,000 24,599,987 13 -39,400,000 -20,500,000 -9,400,000 -28,100,000 44,600,000 172,600,000 -132,100,000 -105,300,000 -255,700,000 -42,900,000 -68,300,000 46,100,000 10,900,000     
          impairment of goodwill and intangible assets
        		               32,799,967.2 32.8 77,500,000 0 40,800,000 3,600,000 0 0 26,400,000 487,300,000          
          impairment of right-of-use operating asset
        		                     0             
          loss on sale of subsidiaries
        		                                  
          contingent consideration fair value adjustment
        		                         0 0        
          purchase of common stock from dai-ichi life and share buyback program
        		             0 0 -98,899,956.7 -43.3 -66,900,000 -75,000,000 0 -230,200,000              
          payment of contingent consideration
        		                     0 0 0 -13,800,000 0 0 0 -14,100,000      
          jhg long-term note with intech
        		              -1,200,000 -11,999,990 -10                  
          cash flows provided by:
        		                                  
          cash received (paid) on settled seed capital hedges
        		                11.7                  
          gain on sale of geneva
        		                     0 0 1,200,000 -17,400,000          
          receipt of contingent consideration payments from sale of volantis
        		                 1,300,000 0 -100,000 800,000              
          receipt of contingent consideration payments from sale of geneva
        		                 20,000,000 2,000,000 1,800,000 1,600,000              
          proceeds from sale of geneva
        		                     0 -200,000 0 38,600,000          
          third-party sales in consolidated seeded investment products
        		                  21,700,000 9,300,000 30,200,000      42,900,000        
          gain from bnp paribas transaction
        		                                  
          dai-ichi option fair value adjustments
        		                                  
          proceeds from bnp paribas transaction
        		                             0 0    
          repayment of long-term debt
        		                                  
          third-party sales (redemptions) in consolidated seeded investment products
        		                       132,100,000 105,300,000    -46,100,000   -21,700,000 38,400,000  
          contingent consideration adjustment
        		                      0 0 -7,100,000          
          proceeds from
        		                                  
          contingent consideration from sale of volantis
        		                                  
          contingent consideration from sale of geneva
        		                                  
          cash received on settled hedges
        		                       -11,900,000 17,900,000  -8,600,000 -3,300,000 -7,400,000      
          proceeds from sale of volantis
        		                         800,000 300,000 900,000 300,000 1,600,000     
          impairment of intangible asset
        		                         0 0        
          gains from equity-method investments
        		                                  
          impairment of rou operating asset
        		                         0 0 0 4,700,000      
          investment (gains) losses
        		                                  
          cash acquired from acquisition of jcg
        		                                  
          investment income received by consolidated funds
        		                                  
          cash movement on deconsolidation of consolidated funds
        		                                  
          cash received (paid) on settled hedges
        		                                  
          dividends attributable to noncontrolling interests
        		                                  
          settlement of convertible note hedge
        		                                  
          settlement of stock warrant
        		                                  
          proceeds from issuance of options
        		                                  
          at beginning of year
        		                                  
          at end of year
        		                                  
          cash acquired from acquisition
        		                                 0 
          net cash received on settled hedges
        		                              -2,600,000    
          proceeds from settlement of convertible note hedge
        		                                 0 
          proceeds from issuance of option
        		                                  
          third-party redemptions in consolidated seeded investment products
        		                                  
          reconciliation of cash and cash equivalents
        		                                  
          losses from equity-method investments
        		                                  
          gain from bnp transaction
        		                                  
          proceeds from bnp transaction
        		                                36,500,000  
          net cash paid on settled hedges
        		                                2,900,000  
          proceeds from:
        		                                  
          investment securities - vies
        		                                 -37,300,000 
          investment securities - seed capital
        		                                 1,000,000 
          stock-based compensation expense
        		                                  
          impairment of equity-method investment
        		                                  
          repayment of long-term borrowings
        		                                  
          cash and cash equivalents held in vies