7Baggers
Quarterly
Annual
    Unit: USD2024-09-30 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 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2015-12-31 2015-09-30 2015-03-31 2014-06-30 2014-03-31 2013-03-31 2012-09-30 2012-06-30 2012-03-31 2011-09-30 2011-06-30 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 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 
      
                                                               
      assets
                                                               
      current assets
                                                               
      cash and cash equivalents
    219,595,000 243,707,000 285,531,000 287,807,000 183,097,000 201,492,000 189,739,000 236,059,000 490,321,000 281,944,000 318,725,000 325,194,000 189,707,000 153,516,000 169,593,000 187,492,000 156,655,000 150,022,000 105,157,000 153,020,000 175,428,000 232,429,000 218,750,000 245,679,000 241,590,000 288,332,000 273,387,000 298,337,000 333,548,000 347,580,000 305,372,000 400,205,000 269,814,000 450,781,000 494,788,000 689,972,000 740,154,000 865,761,000 730,119,000 550,756,000 512,527,000 117,770,000 158,509,000 82,345,000 69,220,000 93,593,000 63,753,000 56,966,000 50,374,000 61,138,000 840,293,000 50,560,000 27,766,000 41,066,000 1,161,000 13,234,000 5,080,000 3,389,000 1,693,000 
      short-term investments
    36,347,000 35,583,000 34,252,000 32,724,000 30,447,000 33,607,000 32,116,000 36,993,000 10,671,000   14,463,000 20,084,000 33,256,000 67,483,000 96,765,000 63,128,000 67,237,000  135,667,000                                        
      restricted cash
    1,100,000 1,100,000 1,100,000 1,100,000 1,100,000 1,100,000 1,100,000 1,100,000 1,100,000 1,100,000 1,100,000 1,101,000 1,101,000 7,104,000 18,962,000 5,953,000 13,919,000         2,926,000   41,755,000 68,984,000 71,050,000 81,563,000 102,236,000 97,542,000 50,409,000    2,290,000 3,450,000 5,740,000 8,866,000 21,428,000 350,966,000                
      trade accounts receivable
    239,994,000 241,910,000 224,084,000 273,522,000 289,994,000 250,479,000 295,157,000 236,999,000 210,349,000 457,883,000 323,167,000 324,304,000 226,206,000 160,154,000 129,086,000 110,869,000 127,292,000 118,835,000 149,225,000 168,125,000 206,149,000 182,824,000 195,095,000 183,318,000 198,362,000 208,100,000 172,604,000 207,059,000 190,256,000 150,399,000 184,483,000 165,522,000  117,405,000 217,667,000 198,314,000 203,782,000 230,002,000 263,294,000 277,634,000 327,402,000 295,012,000 342,721,000 335,052,000 258,499,000 208,060,000 249,189,000 243,567,000 238,770,000 190,738,000 173,994,000 172,085,000 224,964,000 260,564,000 255,003,000 242,186,000 229,965,000 197,005,000 210,110,000 
      other receivables
    8,580,000 6,005,000 10,519,000 13,700,000 16,439,000 18,440,000 18,560,000 18,301,000 13,592,000 12,847,000 9,807,000 8,271,000 3,573,000 3,336,000 3,764,000 3,053,000 2,880,000 2,960,000 19,016,000 21,143,000 24,291,000 32,950,000 44,528,000 26,972,000 12,612,000 11,405,000 29,771,000 23,473,000 21,504,000 22,482,000 19,877,000 17,227,000 15,377,000 18,362,000 21,742,000 15,435,000 35,369,000 44,810,000 81,750,000 71,114,000 70,103,000 66,702,000 83,579,000 91,064,000 44,818,000 44,260,000 45,590,000 33,221,000 31,178,000 40,632,000 20,662,000 31,105,000 42,481,000 24,963,000 17,946,000 16,495,000 19,724,000 19,060,000 22,022,000 
      inventories
    235,091,000 249,865,000 243,690,000 244,261,000 233,213,000 263,310,000 271,155,000 223,015,000 215,172,000 212,752,000 203,997,000 156,734,000 155,870,000 162,531,000 154,395,000 126,008,000 143,396,000 154,690,000 149,986,000 130,898,000 171,543,000 172,841,000 145,607,000 163,878,000 157,205,000 143,831,000 128,960,000 122,436,000 137,056,000 125,194,000 113,462,000 159,410,000 172,698,000 196,720,000 239,035,000 240,113,000 228,726,000 224,806,000 368,240,000 391,526,000 455,091,000 488,686,000 346,331,000 350,201,000 247,908,000 235,616,000 218,958,000 238,317,000 243,158,000 240,776,000 237,293,000 240,828,000 205,770,000 173,862,000 177,285,000 196,166,000 177,785,000 145,222,000 145,045,000 
      other current assets
    47,716,000 52,621,000 63,393,000 64,653,000 51,854,000 49,547,000 55,089,000 71,384,000 49,869,000 54,805,000 50,217,000 52,804,000 52,098,000 35,149,000 39,917,000 58,000,000 55,712,000 70,758,000 87,096,000 97,894,000 113,502,000 56,993,000 64,192,000 95,040,000 86,642,000 68,459,000 70,426,000 63,685,000 61,474,000 74,063,000 93,763,000 36,960,000 39,741,000 104,723,000 51,398,000 59,605,000 54,270,000 55,296,000                      
      total current assets
    788,423,000 830,791,000 862,569,000 917,767,000 806,144,000 817,975,000 862,916,000 823,851,000 991,074,000 1,021,331,000 907,013,000 882,871,000 648,639,000 555,046,000 583,200,000 588,140,000 562,982,000 564,502,000 639,537,000 706,747,000 866,969,000 840,693,000 832,836,000 877,417,000 857,305,000 867,705,000 830,994,000 869,619,000 945,415,000 911,207,000 878,622,000 979,323,000 944,198,000 1,203,782,000 1,319,319,000 1,530,989,000 1,581,788,000 1,737,328,000 1,884,382,000 1,579,686,000 1,568,527,000 1,179,119,000 1,107,583,000 1,388,665,000 798,942,000 734,914,000 763,424,000 745,141,000 730,412,000 686,782,000 1,401,043,000 605,901,000 647,297,000 771,665,000 774,502,000 617,073,000 521,145,000 452,548,000 457,090,000 
      property, plant and equipment
    1,238,534,000 1,244,597,000 1,235,775,000 1,228,891,000 1,200,109,000 1,192,681,000 1,182,351,000 1,187,028,000 1,116,550,000 1,108,926,000 1,111,359,000 1,120,043,000 1,135,399,000 1,102,570,000 1,058,942,000 1,007,303,000 964,472,000 1,066,614,000 1,035,776,000 984,509,000 889,295,000 870,889,000 848,749,000 919,613,000 925,559,000 935,511,000 955,948,000 980,801,000 1,007,570,000 1,027,288,000 1,053,603,000 3,434,941,000 3,493,553,000 3,619,029,000 4,173,038,000 6,371,335,000 6,603,458,000 6,616,144,000 7,272,541,000 7,372,063,000 7,397,131,000 7,892,733,000 7,703,280,000 7,726,456,000 3,263,555,000 3,308,892,000 3,303,028,000 3,346,294,000 3,306,175,000 3,366,186,000 2,745,469,000 2,783,686,000 2,797,697,000 2,655,884,000 2,650,529,000 2,634,351,000 2,463,638,000 2,467,072,000 2,432,573,000 
      other assets
                                                               
      deferred income taxes
    126,608,000 119,310,000 120,792,000 124,024,000 146,324,000 160,927,000 174,561,000 209,470,000            82,000       22,520,000        20,454,000 50,414,000 48,786,000 48,869,000 67,337,000 65,395,000 65,531,000 65,531,000 15,795,000 7,015,000 18,673,000 361,556,000 33,850,000 20,937,000 3,265,000  33,830,000 23,872,000 32,121,000 89,164,000 71,972,000 35,134,000 18,789,000 40,273,000 32,014,000 
      equity investments
    23,088,000 22,861,000 24,053,000 22,815,000 21,273,000 22,348,000 19,142,000 17,267,000 17,044,000 16,786,000 16,494,000 15,403,000 80,016,000 74,974,000 74,503,000 71,783,000 70,275,000 106,125,000 106,535,000 105,588,000 107,543,000 106,072,000 105,419,000 105,325,000 104,189,000 104,786,000 106,107,000 106,179,000 104,015,000 104,144,000 96,074,000 164,232,000 163,772,000 201,877,000 206,347,000 225,030,000 229,514,000 223,235,000 246,807,000 237,645,000 235,299,000 230,519,000 224,684,000 207,646,000 204,424,000 177,451,000 148,893,000 150,136,000 99,924,000 87,268,000 90,306,000 88,864,000 89,207,000 86,866,000 86,530,000 82,929,000 82,950,000 83,435,000 83,266,000 
      fund for asset retirement obligations
                                                               
      other noncurrent assets
    46,293,000 46,999,000 47,351,000 48,410,000 51,595,000 54,313,000 56,555,000 59,499,000 65,194,000 66,604,000 76,019,000 78,843,000 66,895,000 62,356,000 57,513,000 55,246,000 55,608,000 65,148,000 75,658,000 69,230,000 70,793,000 71,876,000 76,197,000 95,267,000 62,360,000 68,676,000 59,783,000 65,934,000 75,058,000 102,277,000 108,298,000 58,569,000 62,705,000 58,379,000 119,426,000 123,964,000 153,854,000 158,925,000                      
      total other assets
    343,921,000 335,180,000 336,342,000 337,515,000 359,605,000 376,245,000 387,392,000 422,229,000 212,238,000 183,390,000 132,513,000 114,246,000 146,911,000 137,330,000 132,016,000 127,029,000 125,883,000 171,273,000 182,193,000 176,500,000 178,336,000 177,948,000 181,616,000 200,592,000 166,549,000 173,462,000 192,690,000 172,113,000 179,073,000 206,421,000 204,372,000 243,798,000 247,474,000 283,927,000 355,640,000 412,616,000 470,862,000 469,712,000 763,221,000 984,105,000 988,280,000 1,093,266,000 1,044,398,000 1,036,324,000 837,481,000 836,963,000 768,334,000 799,105,000 776,699,000 787,628,000 647,426,000 639,410,000 644,755,000 514,018,000 523,643,000 598,915,000 609,816,000 564,409,000 584,286,000 
      total assets
    2,370,878,000 2,410,568,000 2,434,686,000 2,484,173,000 2,365,858,000 2,386,901,000 2,432,659,000 2,433,108,000 2,319,862,000 2,313,647,000 2,150,885,000 2,117,160,000 1,930,949,000 1,794,946,000 1,774,158,000 1,722,472,000 1,653,337,000 1,802,389,000 1,857,506,000 1,867,756,000 1,934,600,000 1,889,530,000 1,863,201,000 1,997,622,000 1,949,413,000 1,976,678,000 1,979,632,000 2,022,533,000 2,132,058,000 2,144,916,000 2,136,597,000 4,658,062,000 4,685,225,000 5,106,738,000 5,847,997,000 8,314,940,000 8,656,108,000 8,823,184,000 9,920,144,000 9,935,854,000 9,953,938,000 10,165,118,000 9,855,261,000 10,151,445,000 4,899,978,000 4,880,769,000 4,834,786,000 4,890,540,000 4,813,286,000 4,840,596,000 4,793,938,000 4,028,997,000 4,089,749,000 3,941,567,000 3,948,674,000 3,850,339,000 3,594,599,000 3,484,029,000 3,473,949,000 
      ​
       2,011,535,000    1,849,542,000    1,653,399,000    1,428,982,000                                            
      liabilities and stockholders' equity
                                                               
      current liabilities
                                                               
      accounts payable
    153,189,000 186,549,000 178,119,000 205,001,000 198,374,000 188,494,000 176,953,000 211,848,000 186,322,000 165,143,000 147,284,000 131,986,000 102,025,000 116,042,000 122,916,000 103,743,000 99,110,000 104,464,000 108,972,000 133,060,000 166,129,000 138,735,000 138,935,000 119,629,000 131,027,000 127,149,000 134,137,000 137,664,000 127,059,000 103,130,000 95,953,000 89,966,000 78,043,000 128,131,000 152,229,000 167,480,000 160,209,000 160,361,000 229,269,000 304,442,000 316,669,000 294,341,000 293,446,000 286,437,000 183,866,000 198,216,000 172,281,000 157,965,000 149,243,000 128,402,000 129,048,000 140,739,000 165,955,000 200,891,000 174,005,000 168,680,000 150,026,000 152,965,000 163,506,000 
      accrued expenses and other current liabilities
    112,767,000 111,062,000 113,360,000 127,617,000 135,163,000 121,043,000 120,180,000 157,043,000 160,247,000 191,125,000 179,200,000 167,304,000 198,268,000 166,287,000 150,167,000 155,256,000 141,021,000 143,304,000 143,054,000 157,167,000 161,939,000 162,741,000 143,586,000 203,667,000 194,730,000 158,882,000 184,161,000 164,939,000 169,533,000 172,898,000 205,240,000 223,780,000 153,028,000 329,450,000 310,747,000 321,503,000 294,317,000 328,561,000 352,040,000 355,448,000 360,793,000 357,386,000 379,707,000 395,020,000 228,165,000 245,411,000 200,868,000 226,365,000 196,177,000 227,716,000 166,448,000 187,068,000 201,689,000       
      current maturities of debt
    126,897,000 29,721,000 35,341,000 35,343,000 21,926,000 26,414,000 37,405,000 57,988,000 52,179,000 55,920,000 182,611,000 223,050,000 138,587,000 133,812,000 24,597,000 31,097,000 25,987,000 25,702,000 28,456,000 20,753,000 11,925,000 13,068,000 15,210,000 11,478,000 12,533,000 14,328,000 15,783,000 8,566,000 7,414,000 7,898,000 11,038,000 3,398,000  5,107,210,000 32,237,000 34,368,000 27,266,000 29,950,000 28,306,000                     
      total current liabilities
    392,853,000 327,332,000 326,820,000 367,961,000 355,463,000 335,951,000 334,538,000 426,879,000 398,748,000 412,188,000 509,095,000 522,340,000 438,880,000 416,141,000 297,680,000 290,096,000 266,118,000 273,470,000 280,482,000 310,980,000 339,993,000 314,544,000 297,731,000 334,774,000 338,290,000 300,359,000 334,081,000 311,169,000 304,006,000 283,926,000 312,231,000 317,144,000 231,071,000 5,564,791,000 495,213,000 523,351,000 481,792,000 518,872,000 610,258,000 779,083,000 795,812,000 763,183,000 726,133,000 1,115,858,000 485,727,000 527,346,000 518,204,000 635,560,000 591,638,000 631,727,000 496,469,000 530,365,000 582,855,000 791,068,000 819,947,000 745,276,000 556,515,000 482,710,000 419,505,000 
      long-term debt
     101,661,000 107,959,000 105,252,000 107,515,000 109,216,000 110,899,000 116,288,000 121,914,000 127,107,000 132,290,000 337,623,000 416,446,000 402,076,000 519,357,000 477,215,000 368,278,000 323,854,000 330,036,000 290,066,000 292,781,000 295,263,000 297,733,000 302,830,000 305,157,000 307,742,000 310,134,000 312,604,000 315,639,000 318,030,000 351,841,000 30,037,000  30,953,000 5,108,492,000 5,117,982,000 5,116,353,000 5,112,995,000 5,082,205,000 4,465,445,000 4,464,351,000 3,967,796,000 3,841,330,000 3,773,923,000 1,539,028,000 1,538,744,000 1,538,470,000 1,540,363,000 1,540,289,000 1,540,223,000 1,692,167,000 1,240,793,000 1,238,807,000 956,490,000 958,383,000 1,058,696,000 1,085,579,000 1,135,752,000 1,226,224,000 
      asset retirement obligations
    267,486,000 263,098,000 260,252,000 255,740,000 234,386,000 234,842,000 237,142,000 235,736,000 195,655,000 194,249,000 193,745,000 192,672,000 210,843,000 213,387,000 224,615,000 230,732,000 239,614,000 238,883,000 239,969,000 242,432,000 238,440,000 236,317,000 233,614,000 319,601,000 316,341,000 312,544,000 308,855,000 334,479,000 342,680,000 339,865,000 337,227,000 394,699,000 390,634,000 396,659,000 414,194,000 404,844,000 395,813,000 390,408,000 410,975,000 426,044,000 424,289,000 432,620,000 415,877,000 412,324,000 336,975,000 334,257,000 323,025,000 317,257,000 311,130,000 305,094,000 270,642,000 265,904,000 260,876,000 231,352,000 227,609,000 223,648,000 219,991,000 211,568,000 207,920,000 
      accrued pension benefits
    816,000 832,000 861,000 878,000 1,057,000 1,076,000 1,089,000 1,101,000 493,000 591,000 948,000 1,300,000 1,527,000 2,274,000 2,088,000 2,879,000 6,108,000 13,875,000 18,897,000 5,476,000 12,491,000 11,649,000 15,452,000 5,101,000 7,481,000 13,370,000 14,036,000 17,884,000 32,092,000 37,510,000 38,884,000 23,716,000 19,853,000 27,373,000 12,061,000 14,436,000 13,925,000 10,484,000 69,342,000 45,160,000 49,040,000 49,378,000 16,235,000 36,047,000 38,808,000 49,154,000 64,145,000 67,252,000 69,277,000 68,266,000 63,904,000 75,976,000 76,023,000       
      accrued postretirement benefits other than pension
    46,530,000 46,800,000 47,384,000 47,494,000 50,360,000 50,802,000 51,770,000 49,674,000 72,890,000 74,300,000 73,828,000 73,565,000 93,317,000 95,491,000 95,936,000 94,388,000 85,642,000 86,772,000 80,069,000 80,567,000 78,308,000 79,992,000 81,296,000 105,400,000 106,934,000 104,902,000 102,369,000 104,733,000 101,407,000 101,786,000 101,445,000 87,123,000 87,286,000 99,810,000 33,966,000 34,453,000 38,034,000 37,995,000 46,413,000 41,061,000 42,028,000 42,784,000 88,820,000 87,626,000 36,920,000 37,793,000 45,609,000 45,441,000 45,095,000 43,865,000 40,566,000 60,250,000 58,943,000 62,227,000 61,204,000 60,354,000 59,181,000 53,155,000 52,255,000 
      accrued workers’ compensation
    158,902,000 157,663,000 155,838,000 154,650,000 144,714,000 152,942,000 153,870,000 155,756,000 222,648,000 222,289,000 222,462,000 224,105,000 249,594,000 249,256,000 249,133,000 244,695,000 219,851,000 219,095,000 218,626,000 215,599,000 174,118,000 173,621,000 168,851,000 180,880,000 185,068,000 185,159,000 184,835,000 192,262,000 186,128,000 184,792,000 184,568,000 119,828,000 118,997,000 112,270,000 95,905,000 98,683,000 74,083,000 75,817,000 81,039,000 85,251,000 82,372,000 74,012,000 64,421,000 65,027,000 35,964,000 35,290,000 28,226,000 27,676,000 27,990,000 29,110,000 27,706,000 26,527,000 28,728,000 39,467,000 40,561,000 40,712,000 41,071,000 45,679,000 44,667,000 
      other noncurrent liabilities
    60,337,000 62,617,000 68,124,000 72,742,000 76,213,000 76,508,000 79,357,000 82,094,000 121,453,000 94,215,000 94,265,000 81,689,000 105,699,000 97,792,000 103,906,000 98,906,000 102,080,000 98,658,000 95,663,000 82,100,000 93,033,000 80,194,000 68,577,000 61,896,000 49,194,000 64,140,000 59,457,000 76,923,000 65,048,000 77,301,000 63,824,000 65,824,000 33,918,000 119,171,000 248,800,000 141,804,000 172,512,000 181,866,000 227,363,000 182,464,000 223,131,000 268,585,000 277,490,000 258,261,000 124,243,000 110,234,000 120,058,000 95,559,000 113,735,000 98,243,000 80,473,000 69,724,000 80,409,000 111,206,000 113,096,000 109,063,000 100,576,000 113,062,000 100,655,000 
      total liabilities
    926,924,000 960,003,000 967,238,000 1,004,717,000 969,708,000 961,337,000 968,665,000 1,067,528,000 1,133,801,000 1,124,939,000 1,226,633,000 1,433,294,000 1,516,306,000 1,476,417,000 1,492,715,000 1,438,911,000 1,287,691,000 1,254,607,000 1,263,742,000 1,227,220,000 1,229,164,000 1,191,580,000 1,163,254,000 1,310,482,000 1,308,465,000 1,288,216,000 1,313,767,000 1,350,054,000 1,347,000,000 1,343,210,000 1,390,020,000 6,334,156,000 6,312,215,000 6,351,027,000 6,453,437,000 6,754,617,000 6,624,719,000 6,696,494,000 7,137,790,000 6,770,587,000 6,811,518,000 6,580,954,000 6,310,793,000 6,613,036,000 2,597,665,000 2,632,818,000 2,637,737,000 2,729,108,000 2,699,154,000 2,716,528,000 2,671,927,000 2,269,539,000 2,326,641,000 2,191,810,000 2,220,800,000 2,237,749,000 2,062,913,000 2,041,926,000 2,051,226,000 
      stockholders' equity
                                                               
      common stock
    308,000 308,000 308,000 306,000 305,000 301,000 301,000 288,000 286,000 286,000 256,000 255,000 254,000 254,000 254,000 253,000 252,000 252,000 252,000 252,000 250,000 250,000 250,000 250,000 250,000 250,000 250,000 250,000 250,000 250,000  2,145,000 2,145,000 2,145,000 2,145,000 2,145,000 2,141,000 2,141,000 2,141,000 2,141,000 2,138,000 2,141,000 2,135,000 2,127,000 1,647,000 1,645,000 1,643,000 1,643,000 1,643,000 1,643,000 1,643,000 1,448,000 1,448,000 1,447,000 1,447,000 1,444,000 1,436,000 1,432,000 1,431,000 
      paid-in capital
    764,202,000 758,880,000 754,054,000 720,029,000 716,956,000 710,118,000 703,712,000 724,660,000 766,427,000 774,144,000 748,999,000 784,356,000 779,013,000 774,665,000 770,052,000 767,484,000 744,112,000 739,156,000 734,315,000 730,551,000 734,829,000 728,996,000 723,143,000 712,295,000 708,127,000 703,980,000 700,125,000 697,324,000 694,780,000 692,253,000 688,424,000 3,056,307,000 3,055,646,000 3,054,211,000 3,052,910,000 3,050,216,000 3,044,082,000 3,040,946,000 3,029,536,000 3,024,435,000 3,022,014,000 3,024,553,000 3,012,628,000 2,991,550,000 1,740,765,000 1,734,709,000 1,731,209,000 1,728,806,000 1,724,999,000 1,721,230,000 1,718,088,000 1,388,454,000 1,385,073,000 1,378,633,000 1,371,856,000 1,364,462,000 1,358,695,000 1,351,103,000 1,349,527,000 
      retained earnings
    1,839,125,000 1,849,622,000 1,854,621,000 1,830,018,000 1,737,468,000 1,737,661,000 1,705,988,000 1,565,374,000 1,299,024,000 1,234,979,000 986,797,000 712,478,000 489,914,000 400,771,000 372,882,000 378,906,000 457,432,000 648,909,000 698,292,000 731,425,000 746,928,000 647,440,000 592,296,000 449,122,000 333,753,000 298,664,000 247,232,000 173,676,000 113,574,000 85,117,000 33,449,000         197,749,000 158,374,000 600,230,000 586,067,000 593,896,000 600,751,000 561,418,000 529,852,000 499,423,000 449,515,000 465,934,000 479,025,000 468,462,000 496,451,000 429,254,000 344,401,000 244,383,000 173,186,000 102,033,000 84,798,000 
      treasury stock
    -1,193,884,000 -1,193,876,000 -1,178,735,000 -1,109,679,000 -1,107,878,000 -1,079,396,000 -1,005,165,000 -986,171,000 -884,879,000 -827,381,000 -827,381,000 -827,381,000 -827,381,000 -827,381,000 -827,381,000 -827,381,000 -827,381,000 -827,381,000 -827,381,000 -827,381,000 -816,882,000 -725,524,000 -662,132,000 -495,232,000 -418,985,000 -340,698,000 -302,109,000 -217,728,000 -51,043,000   -53,863,000 -53,863,000            -53,848,000 -53,848,000 -53,848,000 -53,848,000 -53,848,000 -53,848,000 -53,848,000 -53,848,000 -53,848,000 -53,848,000      
      accumulated other comprehensive income
    34,203,000 35,631,000 37,200,000 38,782,000 49,299,000 56,880,000 59,158,000 61,429,000 5,203,000 6,680,000 15,581,000 14,158,000    -35,701,000 -8,769,000 -13,154,000 -11,714,000 5,689,000 40,311,000 46,788,000 46,390,000 20,705,000 17,803,000 26,266,000 20,367,000 18,957,000 27,497,000 24,086,000 24,454,000    5,967,000 6,845,000 33,485,000 35,062,000       2,280,000          10,170,000 2,301,000    
      total stockholders’ equity
    1,443,954,000 1,450,565,000 1,467,448,000 1,479,456,000 1,396,150,000 1,425,564,000 1,463,994,000 1,365,580,000 1,186,061,000 1,188,708,000 924,252,000 683,866,000 414,643,000 318,529,000 281,443,000 283,561,000 365,646,000 547,782,000 593,764,000 640,536,000 705,436,000 697,950,000 699,947,000 687,140,000 640,948,000 688,462,000 665,865,000 672,479,000 785,058,000 801,706,000 746,577,000     1,560,323,000 2,031,389,000 2,126,690,000 2,782,354,000 3,165,267,000 3,124,920,000 3,572,425,000 3,533,207,000 3,527,377,000 2,291,595,000 2,237,507,000 2,186,876,000 2,151,439,000 2,105,142,000 2,115,106,000 2,113,071,000 1,750,614,000  1,749,757,000 1,727,874,000 1,612,590,000 1,531,686,000 1,442,103,000 1,422,723,000 
      total liabilities and stockholders’ equity
    2,370,878,000 2,410,568,000 2,434,686,000 2,484,173,000 2,365,858,000 2,386,901,000 2,432,659,000 2,433,108,000 2,319,862,000 2,313,647,000 2,150,885,000 2,117,160,000 1,930,949,000 1,794,946,000 1,774,158,000 1,722,472,000 1,653,337,000 1,802,389,000 1,857,506,000 1,867,756,000 1,934,600,000 1,889,530,000 1,863,201,000 1,997,622,000 1,949,413,000 1,976,678,000 1,979,632,000 2,022,533,000 2,132,058,000 2,144,916,000 2,136,597,000   5,106,738,000  8,314,940,000 8,656,108,000 8,823,184,000 9,920,144,000 9,935,854,000 9,953,938,000 10,165,118,000 9,855,261,000 10,151,445,000 4,899,978,000 4,880,769,000 4,834,786,000 4,890,540,000 4,813,286,000 4,840,596,000 4,793,938,000 4,028,997,000  3,941,567,000 3,948,674,000 3,850,339,000 3,594,599,000 3,484,029,000 3,473,949,000 
      coal lands and mineral rights
       402,387,000    406,085,000    406,822,000    406,095,000    450,539,000       390,920,000    387,591,000   3,713,639,000            2,523,172,000    2,417,151,000       1,690,176,000   
      plant and equipment
       1,099,511,000    968,420,000    844,107,000    734,194,000    639,399,000       445,407,000    418,182,000   2,359,674,000            2,397,444,000    2,261,929,000       1,729,501,000   
      deferred mine development
       509,637,000    475,037,000    402,470,000    288,693,000    252,108,000       267,063,000    280,323,000   553,286,000            872,329,000    832,976,000       672,496,000   
      less accumulated depreciation, depletion and amortization
       -782,644,000    -662,514,000    -533,356,000    -421,679,000    -357,537,000       -147,442,000    -32,493,000               -2,484,053,000    -2,145,870,000       -1,628,535,000   
      accumulated other comprehensive loss
                -27,157,000 -29,780,000 -34,364,000                 -1,706,000 -3,362,000             -6,417,000 -21,980,000 -24,585,000 -17,167,000 -19,853,000 -31,837,000 -53,902,000 -74,894,000 -5,729,000   -1,632,000 -12,466,000 -13,034,000 
      short term investments
                      129,057,000  176,056,000 162,656,000 164,664,000 162,530,000 160,894,000 144,652,000 155,846,000 154,629,000 159,822,000 122,505,000 88,072,000 111,451,000 203,417,000 200,192,000 199,731,000 249,518,000 248,647,000 248,572,000 248,414,000 99,359,000                    
      prepaid royalties
                       1,600,000       4,280,000    2,281,000 4,805,000 7,737,000 10,022,000 10,352,000 12,841,000 7,932,000 6,896,000 13,105,000 12,120,000 11,214,000 18,025,000 29,163,000 38,119,000 42,719,000 33,932,000 45,129,000 49,441,000 42,090,000 21,085,000 25,711,000 23,582,000 35,401,000 52,662,000 50,311,000 24,113,000 22,055,000 15,868,000 13,521,000 
      coal derivative assets
                                  262,000 2,180,000 4,091,000 8,035,000 13,743,000 14,777,000 14,122,000 12,316,000 20,856,000 40,837,000 53,351,000 22,043,000 2,595,000 12,780,000 15,952,000 15,191,000 10,322,000 14,598,000 14,801,000 18,807,000 23,721,000 23,408,000 25,335,000 86,545,000 140,977,000 45,393,000    
      successor common stock, 0.01 par value, authorized 300,000 shares, issued 25,002 shares at december 31, 2016
                                  250,000                             
      predecessor common stock, 0.01 par value, authorized 26,000 shares, issued 21,446 shares at december 31, 2015
                                                               
      liabilities and stockholders' deficit
                                                               
      liabilities not subject to compromise
                                                               
      total liabilities not subject to compromise
                                   1,038,371,000 881,759,000                           
      liabilities subject to compromise
                                   5,295,785,000 5,430,456,000                           
      stockholders' deficit
                                                               
      accumulated deficit
                                   -4,678,977,000 -4,627,556,000                           
      total stockholders’ deficit
                                   -1,676,094,000 -1,626,990,000                           
      total liabilities and stockholders’ deficit
                                   4,658,062,000 4,685,225,000  5,847,997,000                         
      trade accounts receivable (net of allowance for doubtful accounts of 7.8 million for both periods, respectively.
                                    129,087,000                           
      liabilities and stockholders’ equity
                                                               
      stockholders’ equity
                                                               
      liabilities and stockholders’ deficit
                                                               
      stockholders’ deficit
                                                               
      other
                                          88,977,000 67,495,000 67,568,000 96,484,000 107,462,000 121,123,000 101,153,000 104,262,000 96,633,000 88,094,000 106,776,000 113,606,000 45,539,000 40,461,000 53,459,000 42,839,000 59,847,000 44,352,000 47,747,000 31,731,000 32,685,000 
      other assets:
                                                               
      goodwill
                                          265,423,000 480,312,000 480,312,000 596,103,000 539,963,000 539,963,000 114,963,000 114,963,000 113,701,000 113,701,000 113,701,000 113,701,000 46,832,000 46,832,000 46,832,000 46,832,000 40,032,000 40,032,000 40,032,000 40,032,000 40,032,000 
      coal derivative liabilities
                                          643,000 3,498,000 7,090,000 9,100,000 5,824,000 5,791,000 4,178,000 4,947,000 5,721,000 7,570,000 2,820,000 2,244,000 5,640,000 7,036,000 10,044,000 23,544,000 52,410,000 8,053,000    
      current maturities of debt and short-term borrowings
                                           115,695,000 111,260,000 102,356,000 47,156,000 428,610,000 69,518,000 70,997,000 139,334,000 243,660,000 243,398,000 267,464,000 195,333,000 195,522,000 205,167,000 385,566,000 376,248,000 390,387,000 217,614,000   
      redeemable noncontrolling interest
                                            17,500,000 11,739,000 11,261,000 11,032,000 10,718,000 10,444,000 10,173,000 9,993,000 8,990,000 8,962,000 8,940,000 8,844,000        
      current assets:
                                                               
      current liabilities:
                                                               
      stockholders’ equity:
                                                               
      property, plant and equipment:
                                                               
      liabilities and equity
                                                               
      equity:
                                                               
      total arch coal, inc. stockholders’ equity
                                                        1,754,230,000       
      noncontrolling interest
                                                        8,878,000       
      total equity
                                                        1,763,108,000       
      total liabilities and equity
                                                        4,089,749,000       
      accrued expenses
                                                         181,067,000 217,284,000 178,156,000 188,875,000 169,042,000 196,216,000 
      preferred stock, 0.01 par value, authorized 10,000 shares; issued and outstanding 85 shares at december 31, 2007, 50 liquidation preference
                                                               
      preferred stock, 0.01 par value, 10,000 shares authorized; issued and outstanding 85 shares at december 31, 2007, 50 liquidation preference
                                                               
      preferred stock, 0.01 par value, 10,000 shares authorized; issued and outstanding shares 85 and 144, at december 31, 2007 and 2006, respectively; 50 liquidation preference
                                                            1,000   
      current portion of debt and short-term borrowings
                                                             160,703,000  
      preferred stock, .01 par value, 50 liquidation preference, 10,000,000 shares authorized, 85,016 and 143,771 shares issued, respectively
                                                             1,000  
      current portion of debt
                                                              59,783,000 
      preferred stock, .01 par value, 50 liquidation preference, 10,000,000 shares authorized, 85,121 and 143,771 shares issued, respectively
                                                              1,000 
    The information provided in this report is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.