7Baggers

Waste Connections, Inc
(NYSE:WCN) 

WCN stock logo

Waste Connections, Inc. provides waste collection, transfer, disposal, and recycling services in the United States and Canada. The company operates through five segments: Southern, Western, Eastern, Canada, Central, and Corporate. It offers collection services to residential, commercial, municipal, ...

Founded: 2000
Full Time Employees: 18,204
Sector: Industrials
Industry: Waste Management

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Quarterly
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    Unit: USD2025-09-30 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 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2010-04-27 2009-10-30 2009-09-30 2009-07-29 2009-07-16 
                                               
      revenues
    2,458,378,000 2,407,055,000 2,228,176,000 2,260,283,000 2,338,488,000 2,248,166,000 2,072,653,000 2,035,609,000 2,064,744,000 2,021,095,000 1,900,503,000 1,869,301,000 1,879,868,000 1,816,435,000 1,646,255,000 1,624,319,000 1,597,168,000 1,533,931,000 1,395,942,000 1,398,251,000 1,389,552,000 1,305,782,000 1,352,404,000 1,361,960,000 1,412,444,000 1,369,639,000 1,244,637,000 1,261,732,000 1,281,110,000 1,239,968,000 1,140,131,000 1,157,175,000 1,206,478,000 1,175,569,000 1,091,266,000 1,048,622,000 1,084,922,000 727,639,000 264,042,000  268,411,000 253,700,000 223,893,000 
      operating expenses:
                                               
      cost of operations
    1,406,854,000 1,392,857,000 1,291,443,000 1,324,774,000 1,344,079,000 1,301,070,000 1,221,783,000 1,195,620,000 1,204,603,000 1,197,349,000 1,146,941,000 1,137,973,000 1,120,629,000 1,087,892,000 989,518,000 980,865,000 946,098,000 901,191,000 825,920,000 846,851,000 828,822,000 785,710,000 815,424,000 814,150,000 835,098,000 815,819,000 733,690,000 744,757,000 736,122,000 725,022,000 659,803,000 680,373,000 695,122,000 685,900,000 643,380,000 617,948,000 636,310,000 416,262,000      
      selling, general and administrative
    236,476,000 242,966,000 250,134,000 211,335,000 222,526,000 228,848,000 220,735,000 192,752,000 196,316,000 216,385,000 193,667,000 177,762,000 186,887,000 168,404,000 163,414,000 157,452,000 155,520,000 157,943,000 141,422,000 133,419,000 136,003,000 132,158,000 136,052,000 136,146,000 137,883,000 139,664,000 132,586,000 125,806,000 139,014,000 128,261,000 131,308,000 126,038,000 128,200,000 126,350,000 129,051,000 124,268,000 129,576,000 152,737,000   33,272,000 32,600,000  
      depreciation
    263,999,000 257,421,000 242,307,000 261,609,000 248,473,000 241,229,000 222,691,000 213,291,000 214,966,000 213,322,000 204,059,000 201,111,000 193,287,000 188,937,000 179,950,000 175,142,000 171,965,000 169,221,000 157,402,000 161,461,000 157,590,000 151,230,000 150,821,000 156,780,000 157,994,000 156,776,000 146,847,000 148,842,000 148,232,000 142,450,000 133,185,000 135,179,000 136,941,000 132,827,000 125,240,000 122,612,000 125,744,000 84,348,000      
      amortization of intangibles
    51,331,000 50,236,000 47,642,000 60,184,000 45,170,000 44,124,000 40,290,000 39,833,000 39,405,000 39,052,000 39,282,000 41,719,000 38,859,000 37,462,000 37,635,000 39,042,000 35,337,000 32,707,000 32,192,000 35,240,000 32,653,000 31,771,000 31,638,000 31,701,000 31,934,000 31,344,000 30,542,000 28,335,000 26,871,000 26,474,000 26,098,000 25,411,000 26,613,000 24,762,000 25,510,000 21,593,000 26,944,000 14,081,000      
      impairments and other operating items
    60,127,000 4,030,000 6,440,000 601,571,000 2,897,000 8,190,000 354,000 169,595,000 56,477,000 10,859,000 1,865,000 -1,237,000 13,438,000 4,150,000 1,878,000 22,497,000 3,104,000 6,081,000 634,000 24,136,000 3,805,000 437,270,000 1,506,000 28,999,000 12,935,000 3,902,000 16,112,000 14,012,000 -1,998,000 7,073,000 1,030,000 15,160,000 832,000 -1,180,000 141,681,000 23,044,000 7,682,000       
      operating income
    439,591,000 459,545,000 390,210,000 -199,190,000 475,343,000 424,705,000 366,800,000 224,518,000 352,977,000 344,128,000 314,689,000 311,973,000 326,768,000 329,590,000 273,860,000 249,321,000 285,144,000 266,788,000 238,372,000 197,144,000 230,679,000 -232,357,000 216,963,000 194,184,000 236,600,000 222,134,000 184,860,000 199,980,000 232,869,000 210,688,000 188,707,000 175,014,000 218,770,000 206,910,000 26,404,000 139,157,000 158,666,000 63,495,000 33,727,000  36,998,000 31,349,000 25,037,000 
      yoy
    -7.52% 8.20% 6.38% -188.72% 34.67% 23.41% 16.56% -28.03% 8.02% 4.41% 14.91% 25.13% 14.60% 23.54% 14.89% 26.47% 23.61% -214.82% 9.87% 1.52% -2.50% -204.60% 17.37% -2.90% 1.60% 5.43% -2.04% 14.27% 6.44% 1.83% 614.69% 25.77% 37.88% 225.87% -21.71%  328.85% 102.54% 34.71%     
      qoq
    -4.34% 17.77% -295.90% -141.90% 11.92% 15.79% 63.37% -36.39% 2.57% 9.35% 0.87% -4.53% -0.86% 20.35% 9.84% -12.56% 6.88% 11.92% 20.91% -14.54% -199.28% -207.10% 11.73% -17.93% 6.51% 20.16% -7.56% -14.12% 10.53% 11.65% 7.82% -20.00% 5.73% 683.63% -81.03% -12.30% 149.89% 88.26%   18.02% 25.21%  
      ​
                                               
      interest expense
    -84,449,000 -82,751,000 -80,875,000 -82,419,000 -83,520,000 -82,377,000 -78,488,000 -69,728,000 -69,016,000 -67,545,000 -68,353,000 -64,766,000 -51,161,000 -45,079,000 -41,324,000 -38,625,000 -40,418,000 -41,328,000 -42,425,000 -42,813,000 -40,636,000 -40,936,000 -37,990,000 -36,055,000 -36,780,000 -37,245,000 -37,287,000 -35,230,000 -32,078,000 -32,426,000 -32,370,000 -32,534,000 -32,471,000 -31,160,000 -29,131,000 -27,418,000 -27,621,000 -20,485,000      
      interest income
    5,090,000 2,314,000 1,770,000 2,216,000 3,331,000 4,009,000 2,051,000 2,464,000 2,833,000 1,338,000 2,715,000 3,376,000 1,784,000 652,000 137,000 574,000 495,000 744,000 1,103,000 857,000 903,000 1,317,000 2,175,000 2,591,000 2,056,000 1,818,000 3,311,000 3,493,000 1,467,000 1,056,000 1,155,000 2,042,000 1,656,000           
      other income
    14,542,000 10,050,000 1,872,000 -2,256,000 4,904,000 9,647,000 -1,823,000 4,135,000 5,372,000 -200,000 3,174,000 781,000 8,487,000 -2,649,000 -3,466,000 833,000 3,140,000 -1,235,000 3,548,000 1,654,000 702,000 5,772,000 -9,521,000 1,142,000 -19,000 805,000 2,558,000 -1,113,000 732,000 2,031,000 -387,000 175,000 1,709,000 1,860,000 1,466,000 476,000 671,000 -714,000      
      income before income tax provision
    374,774,000 389,158,000 312,977,000 261,145,500 400,058,000 355,984,000 288,540,000 205,528,000 292,166,000 277,721,000 252,225,000 199,399,750 285,878,000 282,514,000 229,207,000 139,659,750 133,073,000 224,969,000 200,598,000 156,842,000 191,648,000 -266,204,000 171,627,000 161,862,000 201,857,000 188,627,000 153,545,000 166,020,000 202,858,000 181,379,000 156,884,000 145,999,000 187,800,000 176,562,000 -1,851,000 112,997,000 131,366,000 42,985,000      
      income tax provision
    -88,503,000 -98,882,000 -71,467,000 85,645,000 -92,012,000 -80,584,000 -59,413,000 -34,760,000 -62,975,000 -68,551,000 -54,389,000 -57,063,000 -48,753,000 -58,307,000 -48,839,000 -45,675,000 -18,419,000  -40,291,000 -5,913,500 -33,657,000  -28,734,000 -27,634,750 -42,783,000 -39,788,000 -27,968,000 -31,627,250 -52,092,000 -42,565,000  -25,055,000 -64,390,000 -52,675,000    -15,265,000      
      net income
    286,271,000 290,276,000 241,510,000 -196,004,000 308,046,000 275,400,000 229,127,000 126,629,000 229,191,000 209,170,000 197,836,000 194,301,000 237,125,000 224,207,000 180,368,000 166,428,000 114,654,000 177,101,000 160,307,000 130,574,000 157,991,000 -227,467,000 142,893,000 133,191,000 159,074,000 148,839,000 125,577,000 132,543,000 150,766,000 138,814,000 125,032,000 315,129,000 123,410,000 123,887,000 15,020,000 85,703,000 88,881,000 27,720,000 16,710,000  19,109,000 15,105,000 9,639,000 
      yoy
    -7.07% 5.40% 5.40% -254.79% 34.41% 31.66% 15.82% -34.83% -3.35% -6.71% 9.68% 16.75% 106.82% 26.60% 12.51% 27.46% -27.43% -177.86% 12.19% -1.96% -0.68% -252.83% 13.79% 0.49% 5.51% 7.22% 0.44% -57.94% 22.17% 12.05% 732.44% 267.70% 38.85% 346.92% -10.11%  365.13% 83.52% 73.36%     
      qoq
    -1.38% 20.19% -223.22% -163.63% 11.85% 20.20% 80.94% -44.75% 9.57% 5.73% 1.82% -18.06% 5.76% 24.31% 8.38% 45.16% -35.26% 10.48% 22.77% -17.35% -169.46% -259.19% 7.28% -16.27% 6.88% 18.52% -5.26% -12.09% 8.61% 11.02% -60.32% 155.35% -0.39% 724.81% -82.47% -3.58% 220.64% 65.89%   26.51% 56.71%  
      plus: net loss attributable to noncontrolling interests
                                               
      net income attributable to waste connections
    286,271,000 290,276,000 241,510,000 -196,004,000 308,046,000 275,477,000 230,054,000 126,753,000 229,026,000 209,208,000 197,813,000 194,352,000 236,912,000 224,074,000 180,324,000 166,311,000 114,381,000 177,047,000 160,309,000 130,665,000 158,049,000 -227,072,000 143,035,000 133,262,000 159,109,000 148,848,000 125,622,000 132,478,000 150,843,000 138,682,000 124,869,000 315,085,000 123,227,000 123,656,000 14,874,000 85,592,000 88,617,000 27,489,000      
      earnings per common share attributable to waste connections’ common shareholders:
                                               
      basic
    1,110 1,120 940 787.5 1,190 1,070 890 617.5 890 810 770 622.5 920 870 700 432.5 440 680 610 500 600 -860 540 510 600 560 480 500 570 530 470 1,200 470 470 80 510 510 200      
      diluted
    1,110 1,120 930 787.5 1,190 1,070 890 615 890 810 770 622.5 920 870 690 430 440 680 610 500 600 -860 540 500 600 560 480 500 570 520 470 1,190 470 470 80 500 500 200      
      shares used in the per share calculations:
                                               
      basic
    256,948,902 258,377,345 258,193,975 64,484,983.75 258,023,661 257,994,105 257,801,116 64,383,852 257,633,703 257,596,993 257,372,942 64,359,689 257,197,010 257,179,434 258,946,933 65,343,206.75 260,550,774 260,951,405 262,697,487 -63,388 262,998,317 262,994,275 263,790,364 24,435 263,853,681 263,846,970 263,603,418 -7,119 263,628,838 263,691,172 263,827,963 383,769 263,443,064 263,387,338 175,374,630 7,335,456 175,336,967 140,203,557      
      diluted
    257,580,321 258,982,647 258,904,806 64,650,453.75 258,756,528 258,565,246 258,482,473 64,527,621 258,229,404 258,110,491 257,988,971 64,515,187.75 257,891,635 257,736,745 259,560,983 65,469,938.5 261,145,220 261,418,573 263,156,655 -30,462 263,507,486 262,994,275 264,353,158 53,216 264,587,456 264,494,943 264,336,930 19,298 264,394,757 264,332,029 264,588,069 193,028 264,299,472 264,109,594 175,935,482 7,344,551 175,766,759 140,587,155      
      cash dividends per common share
    0.315 0.315 0.315 0.214 0.285 0.285 0.285 0.191 0.255 0.255 0.255 0.173 0.23 0.23 0.23 0.154 0.205 0.205 0.205 0.205 0.185 0.185 0.185 0.185 0.16 0.16 0.16 0.16 0.14 0.14 0.14 0.14 0.12 0.12 0.18 0.18 0.145 0.145      
      plus (less): net income (income) attributable to noncontrolling interests
       250,750   927,000   38,000     -44,000 -81,250 -273,000 -54,000      22,250 35,000 9,000 45,000 -54,500 77,000               
      plus: net income attributable to noncontrolling interests
         77,000             2,000 148,500 58,000 395,000 142,000                     
      less: net income attributable to noncontrolling interests
           -37,500 -165,000  -23,000 -97,500 -213,000 -133,000                -132,000 -163,000 -44,000 -183,000 -231,000 -146,000 -111,000 -264,000 -231,000      
      loss on early extinguishment of debt
                    -115,288,000                           
      income tax benefit
                     -47,868,000    38,737,000         -31,852,000    16,871,000 -27,294,000 -42,485,000       
      foreign currency transaction gain
                             1,115,000 103,000   30,000  1,302,000 -1,864,000 -1,048,000  782,000 -350,000 689,000      
      foreign currency transaction loss
                               -80,750 -132,000  -221,000    -590,000         
      other comprehensive income, before tax:
                                               
      interest rate swap amounts reclassified into interest expense
                                  -599             
      fuel hedge amounts reclassified into cost of operations
                                  -1,148             
      changes in fair value of interest rate swaps
                                  11,769             
      changes in fair value of fuel hedges
                                  615             
      foreign currency translation adjustment
                                  -59,331        5,347,000    20,062,000 
      other comprehensive income, before tax
                                  -48,694             
      income tax benefit related to items of other comprehensive income
                                  -2,826             
      other comprehensive income, net of tax
                                  -51,520             
      comprehensive income
                                  73,512        22,128,000    28,587,000 
      less: comprehensive income attributable to noncontrolling interests
                                  -163             
      comprehensive income attributable to waste connections
                                  73,349             
      other operating items
                                         -3,284,000      
      expenses
                                               
      operating
                                          151,069,000    131,177,000 
      selling, general and administration
                                          39,791,000    30,077,000 
      amortization
                                          39,517,000  41,946,000 41,154,000 37,602,000 
      net gain on sale of capital and landfill assets
                                          -62,000  -13,000 19,000  
      interest on long-term debt
                                          7,937,000  7,851,000 8,766,000 9,629,000 
      net foreign exchange loss
                                          30,000     
      net loss on financial instruments
                                          -542,000     
      other expenses
                                          24,000     
      income before income taxes and loss from equity accounted investee
                                          26,278,000     
      income tax expense
                                            9,548,000 8,917,000  
      current
                                          7,678,000    2,504,000 
      deferred
                                          1,865,000    2,755,000 
      loss from equity accounted investee
                                          25,000     
      other comprehensive income
                                               
      commodity swaps designated as cash flow hedges, net of income tax
                                          166,000     
      settlement of commodity swaps designated as cash flow hedges, net of income tax
                                          -95,000     
      net income - controlling interest
                                          14,734,000     
      net income - non-controlling interest
                                          1,976,000    1,368,000 
      comprehensive income - controlling interest
                                          19,512,000    24,530,000 
      comprehensive income - non-controlling interest
                                          2,616,000    4,057,000 
      net income per weighted-average share, basic and diluted
                                          180     
      weighted average number of shares outstanding (thousands), basic
                                          82,344,000     
      weighted average number of shares outstanding (thousands), diluted
                                          93,431,000     
      net income — attributable to common share or trust unitholders
                                               
      weighted-average number of shares or trust units, basic
                                               
      dilutive effect of ppss
                                               
      weighted-average number of shares or trust units, diluted
                                               
      net income per weighted-average share or trust unit, basic
                                            200 190  
      net income per weighted-average share or trust unit, diluted
                                            200 180  
      issued and outstanding share based options
                                               
      15.
                                               
      16.
                                               
      operating results
                                               
      operating expenses
                                            156,195,000 148,597,000  
      net foreign exchange gain
                                            61,000 93,000  
      net gain on financial instruments
                                            305,000  530,000 
      conversion costs
                                            93,000 115,000  
      other incomes
                                            44,000 35,000 30,000 
      income before income taxes
                                            28,657,000 24,022,000 14,898,000 
      weighted-average number of shares or trust units
                                               
      outstanding (thousands), basic
                                            82,294,000 70,809,000  
      outstanding (thousands), diluted
                                            93,431,000 81,946,000  
      replacement and growth expenditures
                                               
      replacement expenditures
                                            19,322,000   
      growth expenditures
                                            8,839,000   
      total replacement and growth expenditures
                                            28,161,000 39,217,000  
      operating and free cash flow
                                               
      cash generated from operating activities
                                            76,597,000 66,456,000  
      free cash flow
                                            38,504,000 21,476,000  
      free cash flow(b) per weighted-average share or trust unit
                                               
      outstanding, diluted
                                            410 260  
      dividends and distributions
                                               
      dividends and distributions declared
                                            18,546,000 17,495,000  
      dividends declared
                                            2,523,000 2,381,000  
      total dividends and distributions declared
                                            21,069,000 19,876,000  
      total dividends or distributions declared per weighted-average
                                               
      share or trust unit, diluted
                                            230 240  
      net (gain) loss on financial instruments
                                             -1,701,000  
      replacement capital and landfill purchases ("replacement
                                               
      expenditures")
                                             16,983,000  
      growth capital and landfill purchases
                                             22,234,000  
      free cash flow (b) per weighted-average share or trust unit
                                               
      net foreign exchange (gain) loss
                                              84,000 
      commodity swaps designated as cash flow hedges, net of tax
                                               
      net income controlling interest
                                              8,271,000 
      net income per share
                                              0.14 
      weighted-average number of shares or trust units outstanding (thousands), basic
                                              59,516 
      weighted-average number of shares or trust units outstanding (thousands), diluted
                                              70,653 
      net (gain) loss on sale of capital and landfill assets
                                               
      net income on financial instruments
                                              9,990 
      future
                                               
    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 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-04-27 2016-03-31 2016-02-24 2015-12-31 2015-10-30 2015-09-30 2015-06-30 2015-04-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 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 2011-06-30 2011-03-31 2010-09-30 2010-06-30 2010-06-02 2010-04-27 2010-03-31 
                                                                            
        assets
                                                                      3,463,000      
        current assets:
                                                                            
        cash and equivalents
      112,447,000 45,968,000 117,596,000 110,166,000 111,226,000 62,366,000 115,265,000 78,658,000 111,985,000 78,399,000 96,187,000 91,712,000 133,860,000 78,637,000 200,179,000 217,808,000 391,417,000 147,441,000 339,479,000 727,395,000 743,464,000 617,294,000 859,096,000 790,551,000 1,195,279,000 326,738,000 303,778,000 209,209,000 499,482,000 319,305,000 244,389,000 145,801,000 217,537,000 433,815,000 495,254,000 399,741,000 268,469,000 154,382,000 119,335,000 55,624,000                               
        accounts receivable
      1,033,086,000 1,024,992,000 1,069,645,000 1,031,911,000 952,010,000 935,027,000 990,896,000 961,492,000 896,682,000 856,953,000 868,093,000 855,479,000 814,680,000 833,862,000 810,932,000 797,877,000 727,737,000 709,614,000 692,051,000 649,561,000 608,758,000 630,264,000 616,630,000 608,801,000 624,389,000 662,808,000 676,676,000 663,931,000 599,369,000 609,545,000 625,048,000 604,090,000 555,285,000 554,458,000 588,534,000 547,671,000 486,413,000 485,138,000 498,291,000 502,833,000 204,969,000 204,969 207,636,000 207,636,000 210,546,000 210,546,000 216,058,000 190,778,000 190,778,000 216,201,000 219,622,000 235,887,000 205,919,000 229,548,000 240,548,000 247,961,000 235,199,000 238,958,000 234,894,000 213,670,000 198,171,000 113,636,000 115,196,000 138,586,000 107,079,000 108,059,000 131,127,000  117,367,000 58,994,000 
        prepaid expenses and other current assets
      230,786,000 240,603,000 216,399,000 207,662,000 217,802,000 229,519,000 248,971,000 195,557,000 208,387,000 206,433,000 187,442,000 164,485,000 185,718,000 205,146,000 219,203,000 242,050,000 293,625,000 175,722,000 128,758,000 129,487,000 151,769,000 160,714,000 115,690,000 105,574,000 142,553,000 141,052,000 124,836,000 117,454,000 144,006,000 164,053,000 152,827,000 167,036,000 195,318,000 186,999,000 107,134,000 93,053,000 107,876,000 97,533,000 84,460,000 89,465,000                               
        total current assets
      1,376,319,000 1,311,563,000 1,403,640,000 1,349,739,000 1,281,038,000 1,226,912,000 1,355,132,000 1,235,707,000 1,217,054,000 1,141,785,000 1,151,722,000 1,111,676,000 1,134,258,000 1,117,645,000 1,230,314,000 1,257,735,000 1,412,779,000 1,032,777,000 1,160,288,000 1,506,443,000 1,503,991,000 1,408,272,000 1,591,416,000 1,504,926,000 1,962,221,000 1,130,598,000 1,105,290,000 990,594,000 1,242,857,000 1,092,903,000 1,023,058,000 918,375,000 969,649,000 1,176,868,000 1,192,943,000 1,049,196,000 877,343,000 832,569,000 784,633,000 734,068,000                               
        restricted cash
      210,199,000 183,612,000 172,989,000 157,305,000 138,220,000 135,807,000 123,243,000 113,748,000 105,683,000 105,639,000 102,844,000 112,623,000 106,625,000 102,727,000 108,194,000 106,736,000 71,867,000 72,174,000 118,893,000 110,367,000 105,689,000 97,095,000 96,519,000 92,873,000 88,927,000 96,483,000 92,050,000 84,527,000 85,200,000 84,661,000 83,399,000 80,045,000 77,008,000        542,000 542 542,000 542,000 542,000  542,000 521,000 521,000                  425,000 -382,000 382,000  
        restricted investments
      80,397,000 80,757,000 80,002,000 77,784,000 74,160,000 78,126,000 79,455,000 75,490,000 74,655,000 70,350,000 75,990,000 73,075,000 74,358,000 68,099,000 55,922,000 56,234,000 59,449,000 59,014,000 58,430,000 59,825,000 56,620,000 57,516,000 47,161,000 46,391,000 45,856,000 51,179,000 50,602,000 54,515,000 47,926,000 47,486,000 44,217,000 44,049,000 44,230,000                                      
        property and equipment
      8,714,069,000 8,733,327,000 8,422,847,000 8,380,628,000 8,222,980,000 8,035,929,000 8,234,162,000 7,896,221,000 7,827,304,000 7,228,331,000 7,096,769,000 7,030,118,000 6,956,620,000 6,950,915,000 6,353,367,000 5,858,175,000 5,770,931,000 5,721,949,000 5,414,789,000 5,249,904,000 5,232,682,000 5,284,506,000 5,193,378,000 5,045,872,000 5,415,989,000 5,516,347,000 5,375,166,000 5,318,196,000 5,119,785,000 5,168,996,000 5,069,767,000 5,024,868,000 4,924,263,000 4,820,934,000 4,783,928,000 4,729,335,000 4,721,669,000 4,738,055,000 4,773,096,000 4,788,084,000                               
        operating lease right-of-use assets
      324,034,000 312,508,000 316,106,000 325,050,000 311,563,000 308,198,000 311,717,000 296,092,000 273,371,000 261,782,000 263,491,000 248,967,000 195,030,000 192,506,000 190,860,000 167,099,000 162,332,000 160,567,000 162,640,000 169,523,000 174,635,000 170,923,000 168,974,000 173,905,000 176,772,000 183,220,000 189,697,000 194,361,000 199,703,000                                          
        goodwill
      8,414,577,000 8,392,249,000 8,275,386,000 8,220,824,000 8,055,979,000 7,950,406,000 7,922,757,000 7,704,719,000 7,597,175,000 7,404,400,000 7,313,084,000 6,992,466,000 6,940,567,000 6,902,297,000 6,574,860,000 6,457,910,000 6,427,763,000 6,187,643,000 6,006,533,000 5,818,749,000 5,754,101,000 5,726,650,000 5,534,567,000 5,488,305,000 5,385,841,000 5,510,851,000 5,297,556,000 5,316,670,000 5,065,530,000 5,031,685,000 4,813,296,000 4,772,966,000 4,772,949,000 4,681,774,000 4,688,348,000 4,589,573,000 4,529,645,000 4,390,261,000 4,351,170,000 4,299,463,000 907,450,000 907,450 886,911,000 886,911,000 872,412,000 872,412,000 889,987,000 884,297,000 884,297,000 937,294,000 897,574,000 916,111,000 901,810,000 905,347,000 918,330,000 909,184,000 922,024,000 929,114,000 840,437,000 793,948,000 781,747,000 372,596,000 364,741,000 390,886,000 387,773,000 275,642,000 640,308,000 50,326,000 72,304,000 72,304,000 
        intangible assets
      1,959,957,000 2,006,200,000 2,003,600,000 2,062,045,000 2,067,264,000 1,991,619,000 1,982,809,000 1,894,860,000 1,877,226,000 1,603,541,000 1,618,692,000 1,659,645,000 1,697,193,000 1,673,917,000 1,489,242,000 1,400,249,000 1,388,687,000 1,350,597,000 1,264,728,000 1,102,516,000 1,125,894,000 1,155,079,000 1,127,279,000 1,152,303,000 1,120,197,000 1,163,063,000 1,097,036,000 1,124,107,000 1,105,553,000 1,128,628,000 1,069,064,000 1,085,775,000 1,077,560,000 1,087,436,000 1,108,961,000 1,083,787,000 1,097,962,000 1,067,158,000 1,164,308,000 1,160,484,000                               
        other assets
      106,803,000 109,147,000 107,925,000 105,235,000 103,293,000 90,812,000 86,089,000 84,689,000 110,192,000 100,048,000 108,648,000 130,957,000 122,443,000 126,497,000 127,909,000 112,103,000 120,554,000 115,203,000 88,531,000 88,880,000 89,317,000 92,323,000 90,153,000 89,430,000 83,608,000 85,954,000 62,838,000 62,802,000 65,374,000 72,970,000 88,520,000 86,819,000 85,292,000 68,032,000 64,284,000 63,631,000 64,618,000 67,664,000 51,172,000 48,468,000 15,000 15 759,000 759,000 112,000  5,588,000 1,270,000 1,270,000                  80,000  831,000  
        total assets
      21,186,355,000 21,129,363,000 20,782,495,000 20,678,610,000 20,254,497,000 19,817,809,000 20,095,364,000 19,301,526,000 19,082,660,000 17,915,876,000 17,731,240,000 17,359,527,000 17,227,094,000 17,134,603,000 16,130,668,000 15,416,241,000 15,414,362,000 14,699,924,000 14,274,832,000 14,106,207,000 14,042,929,000 13,992,364,000 13,849,447,000 13,594,005,000 14,279,411,000 13,737,695,000 13,270,235,000 13,145,772,000 12,931,928,000            3,307,877,000 3,307,877 3,244,909,000 3,244,909,000 3,183,016,000  3,275,578,000 3,210,866,000 3,210,866,000                   428,391,000 552,443,000  
        liabilities and shareholders' equity
                                                                            
        current liabilities:
                                                                            
        accounts payable
      712,423,000 765,227,000 759,271,000 729,886,000 625,582,000 637,371,000 706,284,000 663,159,000 589,861,000 642,455,000 604,542,000 539,216,000 526,229,000 638,728,000 507,899,000 496,622,000 423,175,000 392,868,000 341,211,000 326,085,000 280,025,000 290,820,000 403,946,000 367,355,000 398,523,000 436,970,000 428,492,000 408,229,000 339,261,000 359,967,000 331,535,000 343,870,000 287,894,000 330,523,000 276,970,000 239,150,000 247,676,000 251,253,000 247,295,000 243,215,000 93,588,000 93,588 98,614,000 98,614,000 88,629,000  98,583,000 74,443,000 74,443,000                  59,607,000 62,753,000 53,222,000  
        book overdraft
      8,560,000 14,674,000 14,292,000 15,024,000 14,518,000 14,628,000 14,568,000 16,204,000 14,584,000 14,855,000 15,782,000 15,411,000 21,067,000 15,645,000 10,734,000 16,668,000 16,809,000 16,721,000 16,527,000 16,902,000 234,000 17,079,000 15,092,000 15,348,000 12,105,000 15,954,000 20,429,000 17,984,000 15,734,000 18,518,000 19,087,000 18,041,000 18,965,000 19,223,000 24,923,000 30,585,000 31,027,000 10,955,000 18,363,000 14,341,000                               
        deferred revenue
      424,835,000 416,025,000 411,579,000 412,417,000 404,382,000 382,501,000 377,475,000 375,626,000 370,380,000 355,203,000 342,726,000 341,408,000 336,613,000 325,002,000 306,019,000 305,724,000 293,729,000 273,720,000 254,135,000 250,254,000 243,712,000 233,596,000 216,675,000 214,478,000 210,668,000 216,443,000 200,677,000 199,401,000 181,950,000 179,282,000 162,965,000 162,463,000 156,528,000 145,197,000 142,787,000 140,070,000 139,017,000 134,081,000 130,724,000 134,257,000                               
        accrued liabilities
      745,013,000 810,367,000 762,137,000 705,551,000 690,222,000 736,824,000 552,741,000 569,732,000 507,259,000 521,428,000 446,436,000 452,949,000 390,195,000 431,247,000 457,904,000 417,725,000 396,292,000 442,596,000 448,541,000 411,333,000 399,470,000 404,923,000 400,293,000 341,333,000 297,266,000 281,308,000 299,139,000 274,478,000 264,706,000 289,544,000 287,369,000 257,874,000 260,542,000 278,039,000 347,439,000 270,621,000 260,603,000 269,402,000 266,906,000 269,334,000                               
        current portion of operating lease liabilities
      46,335,000 44,272,000 42,681,000 41,762,000 39,857,000 40,490,000 39,618,000 38,434,000 36,430,000 32,533,000 32,677,000 32,747,000 34,078,000 35,170,000 34,526,000 35,101,000 35,079,000 38,017,000 37,236,000 37,352,000 35,699,000 30,671,000 30,196,000 30,933,000 29,741,000 29,929,000 30,162,000 30,255,000 29,810,000                                          
        current portion of contingent consideration
      61,945,000 65,029,000 89,044,000 87,800,000 47,261,000 59,169,000 55,474,000 97,253,000 96,931,000 94,996,000 100,813,000 71,065,000 64,489,000 60,092,000 54,867,000 59,371,000 64,480,000 62,804,000 42,359,000 43,359,000 42,360,000 43,297,000 62,492,000 62,213,000 37,549,000 26,159,000 12,393,000 11,773,000 11,650,000 11,612,000 11,612,000 11,688,000 14,462,000 15,803,000 13,819,000 27,097,000 27,562,000 21,453,000 24,338,000 21,920,000                               
        current portion of long-term debt and notes payable
      8,355,000 8,667,000 8,619,000 8,759,000 7,657,000 7,851,000 7,873,000 10,058,000 16,096,000 26,462,000 32,760,000 10,699,000 10,513,000 6,759,000 6,718,000 6,342,000 28,070,000 6,020,000 5,289,000 6,997,000 105,386,000 8,268,000 6,772,000 7,658,000 4,318,000 465,000 502,000 798,000 1,016,000 1,786,000 1,753,000 1,690,000 1,675,000 11,659,000 11,596,000 11,511,000 11,439,000 1,650,000 1,624,000 1,575,000                               
        total current liabilities
      2,007,466,000 2,124,261,000 2,087,623,000 2,001,199,000 1,829,479,000 1,878,834,000 1,754,033,000 1,770,466,000 1,631,541,000 1,687,932,000 1,575,736,000 1,463,495,000 1,383,184,000 1,512,643,000 1,378,667,000 1,337,553,000 1,257,634,000 1,232,746,000 1,145,298,000 1,092,282,000 1,106,886,000 1,028,654,000 1,135,466,000 1,039,318,000 990,170,000 1,007,228,000 991,794,000 942,918,000 844,127,000 860,709,000 815,249,000 797,670,000 742,137,000 802,599,000 819,789,000 725,399,000 725,122,000 692,177,000 689,250,000 684,642,000                               
        long-term portion of debt and notes payable
      9,093,831,000 8,811,104,000 8,621,371,000 8,337,178,000 8,388,364,000 8,072,928,000 8,160,538,000 7,696,229,000 7,795,191,000 6,724,771,000 6,803,439,000 6,681,384,000 6,921,839,000 6,890,149,000 6,211,971,000 5,633,524,000 5,817,641,000 5,040,500,000 4,869,213,000 4,762,857,000 4,613,602,000 4,708,678,000 4,680,219,000 4,694,736,000 5,160,735,000 4,353,782,000 4,039,405,000                                            
        long-term portion of operating lease liabilities
      278,167,000 267,000,000 270,414,000 279,115,000 266,675,000 272,107,000 275,547,000 270,281,000 249,419,000 238,440,000 239,768,000 224,566,000 169,051,000 165,462,000 163,848,000 139,191,000 134,392,000 129,628,000 132,589,000 139,329,000 146,018,000 147,223,000 145,642,000 149,763,000 153,640,000 160,033,000 166,347,000 170,829,000 176,328,000                                          
        long-term portion of contingent consideration
      19,216,000 19,667,000 20,080,000 20,272,000 28,001,000 27,993,000 27,125,000 20,806,000 20,802,000 20,034,000 21,195,000 21,344,000 21,333,000 21,323,000 30,896,000 31,264,000 31,558,000 31,504,000 24,592,000 24,670,000 24,618,000 28,439,000 26,030,000 25,801,000 30,050,000 42,825,000 44,561,000 45,227,000 44,686,000 43,003,000 43,412,000 43,300,000 43,199,000 31,482,000 31,136,000 31,218,000 30,765,000 30,373,000 27,351,000 34,604,000                               
        deferred income taxes
      1,113,470,000 1,085,613,000 1,067,840,000 1,035,413,000 1,011,613,000 958,340,000 1,099,369,000 1,068,671,000 1,052,508,000 1,022,480,000 1,048,283,000 1,048,986,000 1,041,152,000 1,013,742,000 986,252,000 994,766,000 1,002,800,000 850,921,000 777,968,000 772,867,000 776,498,000 760,044,000 725,343,000 728,730,000 817,331,000 818,622,000 800,223,000 783,609,000 766,641,000 760,033,000 741,300,000 718,627,000 711,241,000 690,767,000 829,087,000 822,209,000 812,648,000 89,177,000 82,547,000 86,146,000 120,747,000 120,747 129,970,000 129,970,000 121,244,000  123,127,000 125,098,000 125,098,000                  88,275,000 -3,337,000 83,505,000  
        other long-term liabilities
      616,586,000 576,337,000 621,799,000 651,776,000 716,185,000 747,253,000 517,297,000 491,855,000 542,239,000 524,438,000 451,524,000 460,295,000 451,571,000 417,640,000 415,664,000 410,281,000 411,278,000 421,080,000 442,016,000 445,602,000 433,434,000 455,888,000 470,558,000 459,276,000 440,399,000 416,851,000 431,565,000 412,508,000 374,391,000 349,931,000 339,817,000 325,459,000 307,205,000 316,191,000 310,646,000 304,179,000 301,038,000 331,074,000 329,058,000 317,332,000                               
        total liabilities
      13,128,736,000 12,883,982,000 12,689,127,000 12,324,953,000 12,240,317,000 11,957,455,000 11,833,909,000 11,318,308,000 11,291,700,000 10,218,095,000 10,139,945,000 9,900,070,000 9,988,130,000 10,020,959,000 9,187,298,000 8,546,579,000 8,655,303,000 7,706,379,000 7,391,676,000 7,237,607,000 7,101,056,000 7,128,926,000 7,183,258,000 7,097,624,000 7,592,325,000 6,799,341,000 6,473,895,000 6,437,967,000 6,363,254,000 6,167,141,000 5,686,987,000 5,677,903,000 5,682,480,000 5,740,611,000 5,916,419,000 5,847,377,000 5,816,200,000 5,538,225,000 5,566,327,000 5,535,831,000 2,173,337,000 2,173,337 2,116,012,000 2,116,012,000 2,073,998,000  2,148,803,000 2,036,978,000 2,036,978,000                      
        commitments and contingencies
                                                                            
        shareholders' equity:
                                                                            
        common shares: unlimited shares authorized; 254,260,257 shares issued and 254,213,909 shares outstanding at march 31, 2026; 255,661,011 shares issued and 255,614,663 shares outstanding at december 31, 2025
      2,502,503,000                                                                      
        additional paid-in capital
      366,546,000 373,239,000 354,567,000 335,939,000 318,350,000 325,928,000 310,046,000 290,792,000 272,450,000 284,284,000 270,104,000 255,667,000 238,484,000 244,076,000 229,445,000 210,767,000 196,385,000 199,482,000 184,995,000 172,232,000 161,638,000 170,555,000 162,606,000 151,149,000 141,438,000 154,917,000 147,188,000 138,194,000 128,230,000 133,577,000 124,317,000 118,113,000 109,613,000 115,743,000 109,627,000 102,479,000 96,745,000 102,220,000 97,418,000 92,792,000                               
        accumulated other comprehensive loss
      -141,783,000 -111,044,000 -139,084,000 -93,812,000 -207,286,000 -205,740,000 -64,950,000 -86,655,000 -62,836,000 -9,826,000 -49,262,000 -1,081,000 -60,572,000         -651,000 -113,338,000 -162,707,000 -238,652,000 -10,963,000 -61,228,000 -23,487,000         -25,415,000 -43,001,000 -13,024,000 -1,673,000 -172,806,000 -172,806 -196,672,000  -183,356,000  -157,172,000 -164,928,000 -164,928,000                      
        treasury shares: 46,348 and 46,348 shares at march 31, 2026 and december 31, 2025, respectively
                                                                            
        retained earnings
      5,330,353,000 5,199,755,000 5,031,112,000 4,825,841,000 4,617,038,000 4,457,005,000 4,734,014,000 4,499,951,000 4,298,171,000 4,141,690,000 4,088,726,000 3,925,376,000 3,781,519,000 3,649,494,000 3,520,446,000 3,342,431,000 3,177,778,000 3,056,845,000 2,949,984,000 2,889,027,000 2,765,401,000 2,659,001,000 2,582,298,000 2,473,258,000 2,749,224,000 2,654,207,000 2,569,663,000 2,452,687,000 2,345,970,000 2,264,510,000 2,174,135,000 2,060,156,000 1,961,297,000 1,856,946,000 1,578,635,000 1,487,171,000 1,395,271,000 1,413,488,000 1,359,442,000 1,296,241,000                               
        total shareholders' equity
      8,057,619,000                                        1,134,540,000 1,134,540 1,128,897,000  1,109,018,000  1,126,775,000 1,173,888,000 1,173,888,000                      
        total liabilities and shareholders' equity
      21,186,355,000                                        3,307,877,000 3,307,877 3,244,909,000  3,183,016,000  3,275,578,000 3,210,866,000 3,210,866,000                      
        liabilities and equity
                                                                            
        equity:
                                                                            
        common shares: unlimited shares authorized; 255,661,011 shares issued and 255,614,663 shares outstanding at december 31, 2025; 258,067,487 shares issued and 258,019,389 shares outstanding at december 31, 2024
       2,783,431,000                                                                     
        treasury shares: 46,348 and 48,098 shares at december 31, 2025 and 2024, respectively
                                                                            
        total waste connections' equity
       8,245,381,000 8,093,368,000 8,353,657,000 8,014,180,000                                                                  
        noncontrolling interest in subsidiaries
              4,045,000 4,972,000 5,096,000 4,931,000 4,969,000 4,946,000 4,997,000 4,784,000 4,651,000 4,607,000 4,490,000 4,217,000 4,163,000 4,165,000 4,255,000 4,313,000 4,708,000 4,850,000 5,374,000 5,409,000 5,535,000 5,580,000 5,515,000 5,592,000 5,460,000 5,400,000 5,357,000 7,739,000 7,508,000 7,362,000 7,251,000 6,987,000                               
        total equity
       8,245,381,000 8,093,368,000 8,353,657,000 8,014,180,000 7,860,354,000 8,261,455,000 7,983,218,000 7,790,960,000 7,697,781,000 7,591,295,000 7,459,457,000 7,238,964,000 7,113,644,000 6,943,370,000 6,869,662,000 6,759,059,000 6,993,545,000 6,883,156,000 6,868,600,000 6,941,873,000 6,863,438,000 6,666,189,000 6,496,381,000 6,687,086,000 6,938,354,000 6,796,340,000 6,707,805,000 6,568,674,000 6,460,188,000 6,505,079,000 6,346,641,000 6,280,738,000 6,274,070,000 5,993,856,000 5,807,986,000 5,653,232,000 5,654,877,000 5,621,366,000 5,557,721,000                               
        total liabilities and equity
       21,129,363,000 20,782,495,000 20,678,610,000 20,254,497,000 19,817,809,000 20,095,364,000 19,301,526,000 19,082,660,000 17,915,876,000 17,731,240,000 17,359,527,000 17,227,094,000 17,134,603,000                                                         
        common shares: unlimited shares authorized; 256,022,442 shares issued and 255,976,094 shares outstanding at september 30, 2025; 258,067,487 shares issued and 258,019,389 shares outstanding at december 31, 2024
        2,846,773,000                                                                    
        treasury shares: 46,348 and 48,098 shares at september 30, 2025 and december 31, 2024, respectively
                                                                            
        common shares: 258,393,105 shares issued and 258,346,757 shares outstanding at june 30, 2025; 258,067,487 shares issued and 258,019,389 shares outstanding at december 31, 2024
         3,285,689,000                                                                   
        treasury shares: 46,348 and 48,098 shares at june 30, 2025 and december 31, 2024, respectively
                                                                            
        common shares: 258,364,361 shares issued and 258,318,013 shares outstanding at march 31, 2025; 258,067,487 shares issued and 258,019,389 shares outstanding at december 31, 2024
          3,286,078,000                                                                  
        treasury shares: 46,348 and 48,098 shares at march 31, 2025 and december 31, 2024, respectively
                                                                            
        common shares: 258,067,487 shares issued and 258,019,389 shares outstanding at december 31, 2024; 257,659,921 shares issued and 257,600,479 shares outstanding at december 31, 2023
           3,283,161,000                                                                 
        treasury shares: 48,098 and 59,442 shares at december 31, 2024 and 2023, respectively
                                                                            
        total waste connections’ equity
           7,860,354,000 8,261,455,000 7,983,218,000 7,786,915,000 7,692,809,000 7,586,199,000 7,454,526,000 7,233,995,000 7,108,698,000 6,938,373,000 6,864,878,000 6,754,408,000 6,988,938,000 6,878,666,000 6,864,383,000 6,937,710,000 6,859,273,000 6,661,934,000 6,492,068,000 6,682,378,000 6,933,504,000 6,790,966,000 6,702,396,000 6,563,139,000 6,454,608,000 6,499,564,000 6,341,049,000 6,275,278,000 6,268,670,000 5,988,499,000 5,800,247,000 5,645,724,000 5,647,515,000 5,614,115,000 5,550,734,000                               
        common shares: 258,062,086 shares issued and 258,009,392 shares outstanding at september 30, 2024; 257,659,921 shares issued and 257,600,479 shares outstanding at december 31, 2023
            3,282,345,000                                                                
        treasury shares: 52,694 and 59,442 shares at september 30, 2024 and december 31, 2023, respectively
                                                                            
        common shares: 258,023,240 shares issued and 257,965,548 shares outstanding at june 30, 2024; 257,659,921 shares issued and 257,600,479 shares outstanding at december 31, 2023
             3,279,130,000                                                               
        treasury shares: 57,692 and 59,442 shares at june 30, 2024 and december 31, 2023, respectively
                                                                            
        common shares: 258,019,417 shares issued and 257,961,725 shares outstanding at march 31, 2024; 257,659,921 shares issued and 257,600,479 shares outstanding at december 31, 2023
              3,279,130,000                                                              
        treasury shares: 57,692 and 59,442 shares at march 31, 2024 and december 31, 2023, respectively
                                                                            
        common shares: 257,659,921 shares issued and 257,600,479 shares outstanding at december 31, 2023; 257,211,175 shares issued and 257,145,716 shares outstanding at december 31, 2022
               3,276,661,000                                                             
        treasury shares: 59,442 and 65,459 shares at december 31, 2023 and 2022, respectively
                                                                            
        common shares: 257,640,960 shares issued and 257,581,304 shares outstanding at september 30, 2023; 257,211,175 shares issued and 257,145,716 shares outstanding at december 31, 2022
                3,276,631,000                                                            
        treasury shares: 59,656 and 65,459 shares at september 30, 2023 and december 31, 2022, respectively
                                                                            
        common shares: 257,614,671 shares issued and 257,555,015 shares outstanding at june 30, 2023; 257,211,175 shares issued and 257,145,716 shares outstanding at december 31, 2022
                 3,274,564,000                                                           
        treasury shares: 59,656 and 65,459 shares at june 30, 2023 and december 31, 2022, respectively
                                                                            
        common shares: 257,547,090 shares issued and 257,487,434 shares outstanding at march 31, 2023; 257,211,175 shares issued and 257,145,716 shares outstanding at december 31, 2022
                  3,274,564,000                                                          
        treasury shares: 59,656 and 65,459 shares at march 31, 2023 and december 31, 2022, respectively
                                                                            
        common shares: 257,211,175 shares issued and 257,145,716 shares outstanding at december 31, 2022; 260,283,158 shares issued and 260,212,496 shares outstanding at december 31, 2021
                   3,271,958,000                                                         
        accumulated other comprehensive income
                   -56,830,000 -83,476,000 41,438,000 110,358,000 39,584,000 17,553,000 78,265,000 46,171,000        -45,978,000 -74,786,000 53,203,000 15,106,000 56,893,000 108,413,000 114,779,000 26,108,000                                   
        treasury shares: 65,459 and 70,662 shares at december 31, 2022 and 2021, respectively
                                                                            
        common shares: 257,183,663 shares issued and 257,118,204 shares outstanding at september 30, 2022; 260,283,158 shares issued and 260,212,496 shares outstanding at december 31, 2021
                    3,271,958,000                                                        
        treasury shares: 65,459 and 70,662 shares at september 30, 2022 and december 31, 2021, respectively
                                                                            
        common shares: 257,166,050 shares issued and 257,100,591 shares outstanding at june 30, 2022; 260,283,158 shares issued and 260,212,496 shares outstanding at december 31, 2021
                     3,270,242,000                                                       
        treasury shares: 65,459 and 70,662 shares at june 30, 2022 and december 31, 2021, respectively
                                                                            
        common shares: 257,164,867 shares issued and 257,096,408 shares outstanding at march 31, 2022; 260,283,158 shares issued and 260,212,496 shares outstanding at december 31, 2021
                      3,269,887,000                                                      
        treasury shares: 68,459 and 70,662 shares at march 31, 2022 and december 31, 2021, respectively
                                                                            
        common shares: 260,283,158 shares issued and 260,212,496 shares outstanding at december 31, 2021; 262,899,174 shares issued and 262,824,990 shares outstanding at december 31, 2020
                       3,693,027,000                                                     
        treasury shares: 70,662 and 74,184 shares at december 31, 2021 and 2020, respectively
                                                                            
        common shares: 260,526,784 shares issued and 260,453,918 shares outstanding at september 30, 2021; 262,899,174 shares issued and 262,824,990 shares outstanding at december 31, 2020
                        3,726,134,000                                                    
        treasury shares: 72,866 and 74,184 shares at september 30, 2021 and december 31, 2020, respectively
                                                                            
        common shares: 260,506,316 shares issued and 260,433,450 shares outstanding at june 30, 2021; 262,899,174 shares issued and 262,824,990 shares outstanding at december 31, 2020
                         3,724,859,000                                                   
        treasury shares: 72,866 and 74,184 shares at june 30, 2021 and december 31, 2020, respectively
                                                                            
        common shares: 262,564,371 shares issued and 262,491,505 shares outstanding at march 31, 2021; 262,899,174 shares issued and 262,824,990 shares outstanding at december 31, 2020
                          3,964,500,000                                                  
        treasury shares: 72,866 and 74,184 shares at march 31, 2021 and december 31, 2020, respectively
                                                                            
        common shares: 262,899,174 shares issued and 262,824,990 shares outstanding at december 31, 2020; 263,699,675 shares issued and 263,618,161 shares outstanding at december 31, 2019
                           4,030,368,000                                                 
        treasury shares: 74,184 and 81,514 shares at december 31, 2020 and 2019, respectively
                                                                            
        common shares: 262,897,009 shares issued and 262,822,825 shares outstanding at september 30, 2020; 263,699,675 shares issued and 263,618,161 shares outstanding at december 31, 2019
                            4,030,368,000                                                
        treasury shares: 74,184 and 81,514 shares at september 30, 2020 and december 31, 2019, respectively
                                                                            
        common shares: 262,885,349 shares issued and 262,811,165 shares outstanding at june 30, 2020; 263,699,675 shares issued and 263,618,161 shares outstanding at december 31, 2019
                             4,030,368,000                                               
        treasury shares: 74,184 and 81,514 shares at june 30, 2020 and december 31, 2019, respectively
                                                                            
        common shares: 262,878,701 shares issued and 262,804,517 shares outstanding at march 31, 2020; 263,699,675 shares issued and 263,618,161 shares outstanding at december 31, 2019
                              4,030,368,000                                              
        treasury shares: 74,184 and 81,514 shares at march 31, 2020 and december 31, 2019, respectively
                                                                            
        common shares: 263,699,675 shares issued and 263,618,161 shares outstanding at december 31, 2019; 263,271,302 shares issued and 263,141,413 shares outstanding at december 31, 2018
                               4,135,343,000                                             
        treasury shares: 81,514 and 129,889 shares at december 31, 2019 and 2018, respectively
                                                                            
        common shares: 263,697,618 shares issued and 263,616,104 shares outstanding at september 30, 2019; 263,271,302 shares issued and 263,141,413 shares outstanding at december 31, 2018
                                4,135,343,000                                            
        treasury shares: 81,514 and 129,889 shares at september 30, 2019 and december 31, 2018, respectively
                                                                            
        long-term debt and notes payable
                                 4,082,876,000 4,157,081,000 4,153,465,000 3,747,209,000 3,792,847,000 3,878,698,000 3,899,572,000 3,925,761,000 3,963,909,000 3,946,178,000 3,616,760,000 3,661,971,000 3,761,307,000                               
        common shares: 263,686,518 shares issued and 263,601,239 shares outstanding at june 30, 2019; 263,271,302 shares issued and 263,141,413 shares outstanding at december 31, 2018
                                 4,135,002,000                                           
        treasury shares: 85,279 and 129,889 shares at june 30, 2019 and december 31, 2018, respectively
                                                                            
        common shares: 263,673,497 shares issued and 263,587,245 shares outstanding at march 31, 2019; 263,271,302 shares issued and 263,141,413 shares outstanding at december 31, 2018
                                  4,134,917,000                                          
        treasury shares: 86,252 and 129,889 shares at march 31, 2019 and december 31, 2018, respectively
                                                                            
        current assets held for sale
                                    794,000 1,448,000 1,509,000 1,596,000 2,021,000 8,731,000 14,585,000 6,339,000                                 
        long-term assets held for sale
                                    745,000 11,647,000 12,267,000 12,625,000 12,619,000 79,448,000 119,002,000 33,989,000                                 
        current liabilities held for sale
                                    928,000 2,044,000 2,071,000 2,155,000 2,255,000 6,365,000 7,798,000 3,383,000                                 
        common shares: 263,271,302 shares issued and 263,141,413 shares outstanding at december 31, 2018; 263,660,803 shares issued and 263,494,670 shares outstanding at december 31, 2017
                                   4,131,307,000                                         
        treasury shares: 129,889 and 166,133 shares at december 31, 2018 and 2017, respectively
                                                                            
        common shares: 263,506,592 shares issued and 263,372,910 shares outstanding at september 30, 2018; 263,660,803 shares issued and 263,494,670 shares outstanding at december 31, 2017
                                    4,147,909,000                                        
        treasury shares: 133,682 and 166,133 shares at september 30, 2018 and december 31, 2017, respectively
                                                                            
        common shares: 263,498,672 shares issued and 263,362,026 shares outstanding at june 30, 2018; 263,660,803 shares issued and 263,494,670 shares outstanding at december 31, 2017
                                     4,147,674,000                                       
        treasury shares: 136,646 and 166,133 shares at june 30, 2018 and december 31, 2017, respectively
                                                                            
        common shares: 263,467,240 shares issued and 263,327,956 shares outstanding at march 31, 2018; 263,660,803 shares issued and 263,494,670 shares outstanding at december 31, 2017
                                      4,147,475,000                                      
        treasury shares: 139,284 and 166,133 shares at march 31, 2018 and december 31, 2017, respectively
                                                                            
        restricted cash and investments
                                       167,012,000                                     
        common shares: 263,660,803 shares issued and 263,494,670 shares outstanding at december 31, 2017; 263,140,668 shares issued and 262,803,271 shares outstanding at december 31, 2016
                                       4,187,568,000                                     
        treasury shares: 166,133 and 337,397 shares at december 31, 2017 and 2016, respectively
                                                                            
        restricted assets
                                        59,192,000 60,393,000 59,193,000 63,406,000 63,314,000 62,985,000                               
        common shares: 263,640,287 shares issued and 263,443,234 shares outstanding at september 30, 2017; 263,140,777 shares issued and 262,803,271 shares outstanding at december 31, 2016
                                        4,185,458,000                                    
        treasury shares: 197,053 and 337,397 shares at september 30, 2017 and december 31, 2016, respectively
                                                                            
        long-term liabilities held for sale
                                         463,000 449,000                                  
        common shares: 263,637,093 shares issued and 263,425,440 shares outstanding at june 30, 2017; 263,140,777 shares issued and 262,803,380 shares outstanding at december 31, 2016
                                         4,184,489,000                                   
        treasury shares: 211,653 and 337,397 shares at june 30, 2017 and december 31, 2016, respectively
                                                                            
        common shares: 175,753,513 shares issued and 175,556,828 shares outstanding at march 31, 2017; 175,426,824 shares issued and 175,201,895 shares outstanding at december 31, 2016
                                          4,179,123,000                                  
        treasury shares: 196,685 and 224,929 shares at march 31, 2017 and december 31, 2016, respectively
                                                                            
        common shares: 175,426,824 shares issued and 175,201,895 shares outstanding at december 31, 2016; 122,375,955 shares issued and outstanding at december 31, 2015
                                           4,174,808,000                                 
        treasury shares: 224,929 and 0 shares at december 31, 2016 and 2015, respectively
                                                                            
        common shares: 175,140,948 and 122,375,955 shares issued and outstanding at september 30, 2016 and december 31, 2015, respectively
                                            4,170,279,000                                
        treasury shares: 284,739 and 0 shares at september 30, 2016 and december 31, 2015, respectively
                                                                            
        common shares: 175,037,601 and 122,375,955 shares issued and outstanding at june 30, 2016 and december 31, 2015, respectively
                                             4,163,374,000                               
        treasury shares: 375,007 and 0 shares at june 30, 2016 and december 31, 2015, respectively
                                                                            
        current
                                                                            
        cash and cash equivalents
                                              43,919,000 43,919 35,780,000 35,780,000 34,624,000  39,634,000 36,934,000 36,934,000                  8,212,000 4,991,000 7,422,000  
        other receivables
                                              147,000 147 118,000 118,000 101,000  80,000 42,000 42,000                  478,000  531,000  
        prepaid expenses
                                              34,624,000 34,624 31,164,000 31,164,000 46,346,000  45,451,000 48,067,000 48,067,000                  17,922,000  21,436,000  
        income taxes recoverable
                                              2,272,000 2,272   1,941,000  10,481,000 10,152,000 10,152,000                      
        current - sum
                                              286,488,000 286,488 275,240,000 275,240,000 294,100,000  312,246,000 286,494,000                       
        funded landfill post-closure costs
                                              10,959,000 10,959 10,145,000 10,145,000 10,210,000  10,774,000 10,465,000 10,465,000                  8,180,000  8,339,000  
        intangibles
                                              168,670,000 168,670 176,973,000 176,973,000 150,953,000 150,953,000 162,257,000 172,165,000 172,165,000 165,929,000 170,234,000 197,416,000 208,193,000 220,078,000 236,775,000 252,673,000 270,077,000 287,847,000 249,407,000 241,268,000 250,396,000 98,796,000 100,232,000 111,158,000 113,906,000 125,778,000 109,465,000  113,515,000 32,095,000 
        landfill development assets
                                              16,305,000 16,305 15,067,000 15,067,000 15,360,000 15,360,000 13,808,000 13,379,000 13,379,000 14,463,000 14,571,000 15,007,000 14,126,000 20,247,000 19,883,000 20,771,000 21,509,000 19,715,000 19,056,000 17,970,000 17,318,000 8,669,000 6,882,000 5,862,000  4,036,000 8,510,000  8,010,000 2,977,000 
        deferred financing costs
                                              11,619,000 11,619 15,017,000 15,017,000 16,169,000  17,706,000 12,612,000 12,612,000                  9,962,000 -9,358,000 8,685,000  
        capital assets
                                              969,154,000 969,154 929,111,000 929,111,000 915,832,000 915,832,000 939,179,000 905,611,000 905,611,000 928,550,000 909,739,000 949,742,000 927,052,000 937,252,000 949,223,000 909,988,000 924,373,000 927,518,000 855,593,000 799,491,000 780,477,000 300,928,000 294,222,000 318,110,000 312,949,000 284,631,000 448,867,000 133,584,000 183,285,000 183,285,000 
        landfill assets
                                              933,914,000 933,914 932,595,000 932,595,000 904,788,000 904,788,000 917,854,000 918,686,000 918,686,000 936,095,000 943,567,000 947,514,000 941,592,000 952,731,000 959,269,000 948,327,000 951,970,000 963,720,000 966,815,000 954,441,000 959,899,000 221,660,000 220,377,000 238,828,000 241,844,000 213,173,000 644,936,000 152,204,000 177,246,000 177,246,000 
        investments
                                              798,000 798 748,000 748,000 773,000  830,000 816,000 816,000                      
        liabilities
                                                                            
        accrued charges
                                              155,295,000 155,295 139,988,000 139,988,000 156,325,000  145,858,000 150,960,000 150,960,000                  76,044,000 -2,383,000 63,987,000  
        dividends payable
                                              14,328,000 14,328 13,425,000 13,425,000 13,873,000  14,020,000 14,129,000 14,129,000                  11,012,000  11,500,000  
        income taxes payable
                                              3,430,000 3,430 3,175,000 3,175,000 2,115,000  1,517,000 3,106,000 3,106,000                  14,370,000  8,816,000  
        deferred revenues
                                              16,911,000 16,911 16,340,000 16,340,000 15,874,000  17,569,000 16,446,000 16,446,000                  13,443,000  14,398,000  
        current portion of long-term debt
                                              523,000 523 494,000 494,000 475,000  462,000 5,440,000 5,440,000                      
        landfill closure and post-closure costs
                                              10,625,000 10,625 10,717,000 10,717,000 8,280,000  8,938,000 8,963,000 8,963,000                  5,248,000  6,174,000  
        other liabilities
                                              21,339,000 21,339 17,394,000 17,394,000 19,089,000  18,401,000 19,890,000 19,890,000                  6,412,000  7,398,000  
        long-term debt
                                              1,583,190,000 1,583,190 1,550,226,000 1,550,226,000 1,494,584,000  1,581,469,000 1,478,151,000 1,478,151,000                  657,016,000  705,045,000  
        shareholders' equity
                                                                            
        common shares (authorized - unlimited, issued
                                                                            
        and outstanding - 108,871,584
                                              1,692,209,000                              
        restricted shares
                                              -13,139,000 -13,139 -12,461,000  -12,661,000  -11,482,000 -11,665,000 -11,665,000                      
        additional paid in capital
                                              4,751,000 4,751 7,015,000 7,015,000 5,839,000  4,980,000 4,803,000 4,803,000                      
        accumulated deficit
                                              -376,475,000 -376,475 -360,948,000  -392,767,000  -401,487,000 -382,081,000 -382,081,000                      
        net assets held for sale
                                                                            
        and outstanding - 108,806,684
                                                1,691,963,000                            
        shareholders’ equity
                                                                        796,169,000 -6,021,000 796,465,000  
        common shares
                                                 1,691,963,000                           
        total shareholders’ equity
                                                 1,128,897,000                           
        total liabilities and shareholders’ equity
                                                 3,244,909,000                           
        and outstanding - 108,794,108
                                                  1,691,963,000                          
        working capital position
                                                   -10,560,000     8,670,000   -298,000 20,484,000 45,478,000 30,944,000 5,709,000             
        note:
                                                                            
        (*)includes certain corporate assets and liabilities, when applicable.
                                                                            
        accounts receivable - september 30, 2015 versus december 31, 2014
                                                                            
        change - consolidated
                                                                   5,001,000         
        change - north
                                                                            
        change - u.s. segments
                                                                            
        and outstanding - 111,518,630
                                                     1,727,759,000                       
        working capital
                                                       -34,794,000  7,498,000 23,637,000                  
        change - canada
                                                                   -3,154,000         
        change - u.s.
                                                                   8,155,000         
        working capital deficit -
                                                                -1,136,000 -26,569,000 -4,880,000 -1,397,000        -2,663,000 
        working capital deficit-
                                                                    13,306,000        
        change - consolidated - september 30, 2011 versus december 31, 2010
                                                                    16,434,000        
        change - canada - september 30, 2011 versus december 31, 2010
                                                                    -1,594,000        
        change - u.s. - september 30, 2011 versus december 31, 2010
                                                                    18,028,000        
        working capital deficit —
                                                                     14,760,000  5,873,000     
        change - consolidated - june 30, 2011 versus december 31, 2010
                                                                     35,027,000       
        change - canada - june 30, 2011 versus december 31, 2010
                                                                     21,796,000       
        change - u.s. - june 30, 2011 versus december 31, 2010
                                                                     13,231,000       
        landfill development
                                                                            
        working capital deficit
                                                                            
        —(current assets less
                                                                            
        current liabilities)
                                                                      1,355,000      
        change - consolidated - march 31, 2011 versus december 31, 2010
                                                                      -9,249,000      
        change - canada - march 31, 2011 versus december 31, 2010
                                                                      -9,711,000      
        change - u.s. - march 31, 2011 versus december 31, 2010
                                                                      462,000      
        change — consolidated — september 30, 2010 versus december 31, 2009
                                                                       96,833,000     
        change — canada — september 30, 2010 versus december 31, 2009
                                                                       54,925,000     
        change — u.s. — september 30, 2010 versus december 31, 2009
                                                                       41,908,000     
        revenues
                                                                        422,305,000    
        net income
                                                                        17,567,000    
        net income per weighted-average share, basic and diluted
                                                                        140    
        investment in equity accounted investee
                                                                        3,155,000  3,415,000  
        equity
                                                                            
        non-controlling interest
                                                                        230,302,000 -2,362,000 230,402,000  
        change - consolidated - march 31, 2010 versus december 31, 2009
                                                                           5,528,000 
        change - canada - march 31, 2010 versus december 31, 2009
                                                                           5,860,000 
        change - u.s. - march 31, 2010 versus december 31, 2009
                                                                           -332,000 
      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 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-04-27 2016-03-31 2015-12-31 2015-09-30 2015-07-30 2015-04-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-04-25 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-05-01 2013-03-31 2012-12-31 2012-09-30 2012-06-27 2012-04-27 2012-04-16 2011-12-31 2011-09-30 2011-06-30 2011-04-28 2011-03-31 2011-03-10 2010-12-31 2010-09-30 2010-06-30 2010-06-02 2010-04-27 2010-03-31 2009-09-30 2009-07-29 2009-06-30 
                                                                                     
          cash flows from operating activities:
                                                                                     
          net income
        219,344,000 258,500,000 286,270,000 290,277,000 241,510,000 -196,004,000 308,046,000 275,401,000 229,127,000 126,629,000 229,191,000 209,170,000 197,836,000 194,301,000 237,125,000 224,207,000 180,368,000 166,428,000 114,653,000 177,101,000 160,307,000 130,574,000 157,991,000 -227,466,000 142,893,000 133,191,000 159,074,000 148,839,000 125,577,000 132,543,000 150,765,000 138,814,000 125,032,000 315,129,000 123,384,000 123,887,000 15,020,000  88,881,000 74,747,000 -2,010,000 -2,010,000   37,111,879,000 18,121,000 18,121,000 126,516,000 -38,000 14,933,000 25,919,000 25,919,000 117,970,000 -12,199,000 2,952,000 29,341,000 29,341,000 94,357,000 3,781,000 6,308,000 22,069,000 -196,136,000  3,740,000 13,509,000 23,098,000 23,098,000 82,169,000 -2,258,000  -33,893,000 53,728,000 16,710,000  19,109,000 15,105,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                     
          loss from disposal of assets, impairments and other
        2,519,000 41,941,000 60,134,000 3,702,000 7,778,000 121,707,000 2,537,000                                                                       
          adjustments to closure and post-closure liabilities
        76,845,000                                                                             
          depreciation
        267,485,000 266,838,000 263,999,000 257,421,000 242,307,000 261,609,000 248,472,000 241,229,000 222,691,000 213,291,000 214,967,000 213,321,000 204,059,000 201,111,000 193,287,000 188,937,000 179,950,000 175,142,000 171,964,000 169,222,000 157,402,000 161,461,000 157,590,000 151,230,000 150,821,000 156,780,000 157,993,000 156,776,000 146,847,000 148,842,000 148,232,000 142,449,000 133,185,000 135,179,000 136,941,000 132,827,000 125,240,000  125,743,000                                       
          amortization of intangibles
        47,264,000 52,332,000 51,331,000 50,236,000 47,642,000 60,184,000 45,170,000 44,124,000 40,290,000 39,833,000 39,405,000 39,053,000 39,282,000 41,719,000 38,858,000 37,463,000 37,635,000 39,042,000 35,338,000 32,707,000 32,192,000 35,240,000 32,653,000 31,771,000 31,638,000 31,701,000 31,935,000 31,344,000 30,542,000 28,335,000 26,871,000 26,475,000 26,098,000 25,411,000 26,614,000 24,762,000 25,510,000  26,944,000 10,857,000 10,918,000    10,777,702,000 11,298,000  56,421,000 -244,000 1,000 13,898,000 13,898,000 62,929,000 3,487,000 -342,000 15,360,000 15,360,000 53,585,000 504,000   49,559,000 49,559,000 941,000 -228,000 12,164,000 12,164,000 34,673,000   -22,444,000 28,669,000 7,057,000     
          deferred income taxes, net of acquisitions
        28,537,000 22,815,000 35,547,000 22,127,000 36,165,000 -138,555,000 33,678,000 17,197,000 30,395,000 -22,731,000 -2,367,000 3,198,000 28,229,000 2,383,000 6,107,000 46,613,000 38,378,000 38,845,000 -27,802,000 -4,859,000 8,379,000 27,126,000 -10,792,000 -90,080,000 23,259,000 13,156,000 22,570,000 8,785,000 10,126,000 32,094,000 19,366,000 5,442,000 20,957,000 -142,312,000 -593,000 16,150,000 -26,528,000  10,605,000                                       
          current period provision for expected credit losses
        12,105,000 5,172,000 4,150,000 2,701,000 2,470,000 7,562,000 3,925,000 5,026,000 3,730,000 4,067,000 6,328,000 4,788,000 2,247,000 6,256,000 4,190,000 3,885,000 3,022,000                                                             
          amortization of debt issuance costs
        2,163,000 2,112,000 2,170,000 2,067,000 2,034,000 2,033,000 2,014,000 1,905,000 4,055,000 1,621,000 1,621,000 1,620,000 1,621,000 1,575,000 1,395,000 1,289,000 1,195,000 1,168,000 1,198,000 1,330,000 1,359,000 1,363,000 1,363,000 1,363,000 3,420,000 1,293,000 1,294,000 1,266,000 1,148,000 1,071,000 1,006,000 1,005,000 1,076,000 1,120,000 1,120,000 1,088,000 1,013,000  1,035,000                                       
          share-based compensation
        17,587,000 19,016,000 18,476,000 18,518,000 23,438,000 16,656,000 20,416,000 18,861,000 21,952,000 14,326,000 14,641,000 23,000,000 18,469,000 15,090,000 20,679,000 13,081,000 14,635,000 15,527,000 13,970,000 18,417,000 10,307,000 7,435,000 13,673,000 11,597,000 13,046,000 7,161,000 8,747,000 11,595,000 15,168,000 8,369,000 15,172,000 11,082,000 9,180,000 6,954,000 9,043,000 10,375,000 12,989,000  9,071,000                                       
          interest accretion
        11,200,000 13,089,000 12,855,000 12,819,000 12,737,000 8,268,000 8,506,000 7,948,000 11,279,000 7,893,000 4,992,000 4,951,000 4,884,000 4,450,000 4,420,000 4,350,000 4,448,000 3,902,000 3,869,000 3,995,000 4,204,000 4,362,000 4,331,000 4,160,000 4,352,000 4,143,000 4,140,000 4,171,000 3,972,000 3,726,000 3,732,000 3,738,000 3,665,000 3,416,000 3,519,000 3,463,000 3,424,000  3,409,000                                       
          adjustments to contingent consideration
         -37,089,000 290,000 32,084,000 -1,500,000     31,277,000 -273,000 -637,000 -978,000 -52,000 2,865,000 89,000 1,566,000 58,000   32,000 1,466,000 -353,000 702,000 6,741,000 -300,000 11,313,000  -68,000                                       
          other
        127,000 -799,000 -4,385,000 -1,648,000 -1,013,000 4,161,000 -3,199,000 792,000 902,000 -408,000 -707,000 109,000 -2,937,000 195,000 -6,239,000 -2,555,000 382,000 26,000 -168,000 -322,000 -796,000 1,490,000 -660,000 -712,000 2,308,000 -924,000 198,000 -1,369,000 -145,000 1,511,000 -491,000 27,000 -104,000 1,001,000 -1,733,000 -1,082,000 -650,000  -2,291,000                                       
          net change in operating assets and liabilities, net of acquisitions
        -139,578,000  -53,388,000 -51,702,000 -72,029,000  -76,719,000 2,647,000 -75,761,000  -10,096,000 64,769,000 -52,605,000  24,164,000 12,531,000 -21,154,000  -9,900,000 44,663,000 27,072,000  68,100,000 60,398,000 -7,639,000  29,025,000 19,348,000 5,485,000  10,839,000 21,842,000 -15,601,000  34,450,000 -47,446,000 -10,844,000  10,689,000                                       
          net cash from operating activities
        545,598,000 556,879,000 677,449,000 638,202,000 541,539,000 568,929,000 558,311,000 611,378,000 490,309,000 555,941,000 554,164,000 574,354,000 442,358,000 522,355,000 526,459,000 532,781,000 440,897,000 428,268,000 421,483,000 448,082,000 400,396,000 222,948,000 432,388,000 383,599,000 369,586,000 355,117,000 432,382,000 389,276,000 363,772,000 373,443,000 372,861,000 357,684,000 307,247,000 298,885,000 336,469,000 264,429,000 287,477,000 256,481,000 279,185,000                                       
          capital expenditures
        -261,639,000 -384,291,000 -297,172,000 -285,310,000 -212,455,000 -396,686,000 -272,132,000 -217,219,000 -169,951,000 -318,446,000 -221,411,000 -218,357,000 -175,786,000 -294,364,000 -246,885,000 -219,110,000 -152,318,000 -264,835,000 -208,088,000 -174,599,000 -96,793,000 -176,359,000 -151,983,000 -130,930,000 -137,781,000 -200,880,000 -179,736,000 -139,552,000 -114,238,000 -172,633,000 -171,800,000 -110,496,000 -91,216,000 -161,902,000 -114,768,000 -111,412,000 -91,205,000 -92,847,000                                       
          free cash flows
        283,959,000 172,588,000 380,277,000 352,892,000 329,084,000 172,243,000 286,179,000 394,159,000 320,358,000 237,495,000 332,753,000 355,997,000 266,572,000 227,991,000 279,574,000 313,671,000 288,579,000 163,433,000 213,395,000 273,483,000 303,603,000 46,589,000 280,405,000 252,669,000 231,805,000 154,237,000 252,646,000 249,724,000 249,534,000 200,810,000 201,061,000 247,188,000 216,031,000 136,983,000 221,701,000 153,017,000 196,272,000 256,481,000 186,338,000                                       
          cash flows from investing activities:
                                                                                     
          payments for acquisitions, net of cash acquired
        -63,087,000 -190,267,000 -116,572,000 -130,321,000 -380,417,000 -110,604,000 -574,570,000 -279,282,000 -1,156,422,000 -103,608,000 -360,033,000 -68,541,000 -144,611,000 -933,991,000 -725,928,000 -191,770,000 -355,212,000 -399,173,000 -493,783,000 -58,948,000 -8,545,000 -214,979,000 -87,485,000 -80,382,000 -5,943,000 -316,218,000 -38,970,000 -366,502,000 -14,920,000 -330,027,000 -14,545,000 -173,555,000 -311,964,000 -16,693,000 -46,066,000 -3,671,000 -344,265,000  -1,162,000                                       
          capital expenditures for property and equipment
        -296,596,000 -384,291,000 -297,172,000 -285,310,000 -212,455,000 -396,686,000 -272,132,000 -217,219,000 -169,951,000 -318,446,000 -221,411,000 -218,357,000 -175,786,000 -294,364,000 -246,885,000 -219,110,000 -152,318,000 -264,835,000 -208,088,000 -174,599,000 -96,793,000 -176,359,000 -151,983,000 -130,930,000 -137,781,000 -200,880,000 -179,736,000 -139,552,000 -114,238,000 -172,633,000 -171,800,000 -110,496,000 -91,216,000 -161,902,000 -114,768,000 -111,412,000 -91,205,000  -92,847,000                                       
          proceeds from disposal of assets
        1,779,000 972,000 3,736,000 4,448,000 969,000 2,270,000 2,636,000 1,912,000 1,085,000 22,903,000 4,859,000 2,559,000 1,260,000 7,335,000 6,447,000 1,882,000 15,012,000 32,659,000 2,203,000 5,826,000 2,080,000 7,520,000 922,000 7,143,000 3,499,000 940,000 1,428,000 559,000 639,000 1,687,000 1,624,000 1,072,000 1,002,000 2,606,000 5,209,000 1,802,000 18,815,000  1,466,000                                       
          net cash from investing activities
        -355,701,000 -589,330,000 -413,941,000 -416,761,000 -603,211,000 -513,366,000 -851,706,000 -459,525,000 -1,334,579,000 -395,466,000 -580,992,000 -286,862,000 -317,759,000 -1,228,585,000 -966,636,000 -402,069,000 -489,881,000 -658,642,000 -702,046,000 -232,241,000 -100,553,000 -395,977,000 -290,110,000 -226,330,000 -133,626,000 -540,334,000 -245,382,000 -512,244,000 -128,046,000 -501,374,000 -185,212,000 -282,952,000 -402,282,000 -282,670,000 -155,583,000 -115,120,000 -412,859,000 -143,348,000 -95,141,000                                       
          cash flows from financing activities:
                                                                                     
          proceeds from long-term debt
        1,156,176,000 452,122,000 608,641,000 830,690,000 782,904,000 472,303,000 951,518,000 787,626,000 2,353,022,000 576,211,000 704,133,000 201,772,000 336,649,000 1,667,522,000 1,630,892,000 212,444,000 1,305,288,000 169,001,000 1,632,192,000   25,000,000 1,790,625,000 554,000,000 5,641,000 960,800,000 55,354,000 857,000,000 1,000 130,111,000 35,625,000 76,807,000 31,995,000 428,866,000 436,086,000  54,683,000 3,262,092,000 90,584,000 90,584,000   638,081,971,000 93,029,000 93,029,000 358,682,000 32,153,000 -45,692,000 73,811,000 73,811,000 770,139,000 -429,262,000 518,453,000 19,824,000 19,824,000 1,924,480,000 48,143,000 -18,895,000 98,941,000 380,347,000 380,347,000 -38,580,000 29,647,000 103,483,000 103,483,000 1,245,102,000   -171,512,000 190,609,000 80,768,000     
          principal payments on notes payable and long-term debt
        -843,898,000 -321,367,000 -319,813,000 -947,048,000 -541,737,000 -485,743,000 -524,678,000 -884,066,000 -1,350,932,000 -668,738,000 -615,356,000 -448,032,000 -320,027,000 -1,021,573,000 -1,132,305,000 -414,510,000 -505,597,000 -79,066,000 -1,546,984,000 -261,491,000 -5,559,000 -37,317,000 -21,523,000 -513,725,000 -970,393,000 -286,546,000 -49,576,000 -1,082,538,000 -52,051,000 -583,073,000 -49,563,000 -231,325,000 -106,812,000 -103,382,000 -80,962,000 -415,388,000 -170,374,000  -151,758,000                                       
          payment of contingent consideration recorded at acquisition date
        -4,108,000 -5,945,000 -5,429,000 -2,758,000 -20,137,000 -1,118,000 -14,129,000 -1,201,000 -11,295,000 -9,062,000 -2,062,000 -874,000 -1,319,000 -4,797,000 -3,216,000 -5,327,000 -3,571,000 -4,936,000 -2,403,000 -788,000 -4,807,000 -9,754,000 -561,000 -275,000 -1,976,000 -1,579,000 -1,071,000 -275,000 -275,000 -668,000 -483,000 -2,771,000 -2,205,000 -11,318,000 -275,000 -275,000 -5,290,000  -7,996,000                                       
          change in book overdraft
        -6,114,000 382,000 -733,000 507,000 -110,000 60,000 -1,637,000 1,621,000 -271,000 -927,000 371,000 -5,655,000 5,421,000 4,907,000 -5,929,000 -141,000 87,000 196,000 -373,000 16,659,000 -16,849,000 1,958,000 -256,000 3,242,000 -3,848,000 -4,475,000 2,445,000 2,250,000 -2,784,000 -596,000 889,000 -837,000 -295,000 -5,573,000 -5,665,000 -568,000 20,047,000  4,052,000                                       
          payments for repurchase of common shares
        -283,959,000 -63,341,000 -441,787,000           -424,999,000 -33,353,000 -239,641,000 -65,999,000 -105,654,000     -16,888,000 -42,040,000                                             
          payments for cash dividends
        -88,746,000 -89,857,000 -81,000,000 -81,473,000 -81,477,000 -81,005,000 -73,982,000 -73,698,000 -73,573,000 -73,789,000 -65,675,000 -65,352,000 -65,788,000 -65,303,000 -58,898,000 -59,421,000 -59,391,000 -59,449,000 -53,424,000 -53,421,000 -53,909,000 -53,962,000 -49,009,000 -48,894,000 -48,018,000 -48,719,000 -42,133,000 -42,131,000 -42,084,000 -42,103,000 -36,863,000 -36,770,000 -36,814,000 -36,774,000 -31,738,000 -31,756,000 -31,707,000  -25,416,000                                       
          tax withholdings related to net share settlements of equity-based compensation
        -24,515,000 -503,000 -372,000 -1,953,000 -28,981,000 -725,000 -939,000 -414,000 -30,850,000 -1,594,000 -740,000 -5,709,000 -22,966,000 -892,000 -200,000 -30,000 -17,236,000 -30,000 -66,000 -20,000 -18,490,000 -56,000 -99,000 -201,000 -23,090,000 -68,000 -328,000 -291,000 -16,973,000 -56,000 -387,000 -468,000 -14,121,000                                             
          debt issuance costs
        -4,008,000 -39,000 -1,392,000   -892,000 -2,464,000 -10,093,000     -1,817,000 -6,786,000 -286,000 -4,382,000 -524,000    -160,000 -21,000 -10,936,000 -15,000 -100,000   -5,791,000 -82,000 -569,000 -2,188,000 -29,000 -119,000 -2,886,000 -633,000  -567,000                                       
          proceeds from issuance of shares under employee share purchase plan
        3,031,000 2,871,000 2,593,000 2,303,000 2,183,000 1,000 2,067,000 1,841,000 -1,000 1,717,000 1,554,000 -53,000                                                            
          proceeds from sale of common shares held in trust
         -1,000 324,000 816,000 912,000 286,000 29,000 765,000 355,000 305,000 299,000 131,000 679,000 341,000 85,000 3,610,000 286,000 235,000 199,000 1,947,000 2,110,000 969,000 5,366,000 2,369,000  6,905,000                                       
          net cash from financing activities
        -96,141,000 -28,549,000 -239,014,000 -205,857,000 113,379,000 -95,412,000 338,476,000 -176,596,000 878,477,000 -177,869,000 22,738,000 -323,850,000 -65,424,000 578,046,000 425,275,000 -266,916,000 292,058,000 -7,915,000 -98,397,000 -227,702,000 -165,482,000 -74,131,000 -71,608,000 -559,874,000 627,389,000 212,145,000 -84,781,000 -168,055,000 -55,203,000 208,111,000 -86,253,000 -142,430,000 -167,006,000 -78,399,000 -85,929,000 -18,326,000 239,414,000 -77,929,000 -120,073,000                                       
          effect of exchange rate changes on cash, cash equivalents and restricted cash
        -690,000 -5,000 -1,380,000 2,441,000 -434,000 -486,000 1,021,000 -519,000 -577,000 2,401,000 -1,214,000 208,000 -54,000 1,175,000 -1,269,000 -2,536,000 595,000 -468,000 -430,000 470,000 403,000 5,934,000 1,521,000 1,823,000 -2,364,000 465,000 -127,000 77,000 193,000 -762,000 387,000 -933,000 18,000                                             
          net increase in cash, cash equivalents and restricted cash
        93,066,000 -61,005,000 23,114,000 18,025,000 51,273,000 -40,335,000 46,102,000 -25,262,000 33,630,000 -14,993,000 -5,304,000 -36,150,000 59,121,000 -127,009,000 -16,171,000 -138,740,000 243,669,000 -238,757,000 -379,390,000 -11,391,000 134,764,000 -241,226,000 72,191,000 -400,782,000 860,985,000    180,716,000 79,418,000 101,783,000 -68,631,000 -262,023,000                                             
          cash, cash equivalents and restricted cash at beginning of period
        229,580,000  198,173,000  184,038,000  181,364,000  219,615,000  714,389,000  423,221,000  403,966,000  556,467,000                                             
          cash, cash equivalents and restricted cash at end of period
        322,646,000  23,114,000 18,025,000 249,446,000  46,102,000 -25,262,000 217,668,000  -5,304,000 -36,150,000 240,485,000  -16,171,000 -138,740,000 463,284,000  -379,390,000 -11,391,000 849,153,000  72,191,000 -400,782,000 1,284,206,000  102,092,000 -290,946,000 584,682,000  101,942,000 -68,699,000 294,545,000                                             
          non-cash investing and financing activities:
                                                                                     
          liabilities assumed and notes payable issued to sellers of businesses acquired
        13,851,000  28,045,000 8,087,000 109,394,000  65,389,000 7,659,000 149,634,000  81,404,000 11,445,000 34,224,000  135,433,000 3,571,000 40,122,000      14,358,000    -11,575,000 104,000,000 1,584,000  1,363,000 34,768,000 64,622,000  7,405,000 -10,447,000 146,537,000  115,555,000                                       
          accrued capital expenditures for property and equipment
        34,957,000                                                                             
          adjustment to closure and post-closure liabilities
                                                                                     
          payment of contingent consideration recorded in earnings
                     -520,000         -11,000      -281,000                                       
          changes in operating assets and liabilities, net of effects from acquisitions:
                                                                                     
          accounts receivable
                                                                                     
          prepaid expenses and other current assets
                                                                                     
          accounts payable
                                                                                     
          deferred revenue
                                                                                     
          accrued liabilities
                                                                                     
          capping, closure and post-closure expenditures
                                                                                     
          other long-term liabilities
                                                                                     
          capital expenditures for undeveloped landfill property
                             -699,000 -50,359,000                                                       
          proceeds from sale of investment in noncontrolling interests
                                                                                   
          cash, cash equivalents and restricted cash at beginning of year
                                                                                     
          cash, cash equivalents and restricted cash at end of year
                                                                                     
          changes in accrued capital expenditures for property and equipment
                                                                                     
          non-cash financing activities:
                                                                                     
          loss on disposal of assets and impairments
                1,649,000 1,407,000 24,912,000 10,648,000 1,910,000 -1,984,000 5,455,000 3,958,000 2,090,000 18,425,000 3,073,000 5,828,000 401,000 21,815,000 3,663,000 420,034,000 135,000 28,740,000 12,928,000 2,552,000 16,372,000 3,341,000 -3,238,000 7,227,000 2,863,000 12,393,000 -6,510,000 -1,279,000 129,887,000                                         
          loss on early extinguishment of debt
                                                                                    
          investment in noncontrolling interests
                                                                                     
          premiums paid on early extinguishment of debt
                                                                                    
          investments in noncontrolling interests
                                                                                     
          distributions to noncontrolling interests
                                                                                    
          investment in noncontrolling interest
                                                                                     
          plus: change in cash held for sale
                                                                                     
          amortization of leases
                              4,418,000 4,510,000 5,353,000 6,438,000 4,478,000 5,969,000 7,214,000                                                 
          change in restricted investments, net of interest income
                               184,000 4,348,000 -12,000 4,035,000                                                   
          capital expenditure for purchase of greenfield landfill site
                                                                                    
          plus (less): change in cash held for sale
                                     159,000 -68,000 101,000                                             
          net decrease in cash, cash equivalents and restricted cash
                                  102,092,000                                                   
          excess tax benefit associated with equity-based compensation
                                              -136,000                                       
          cash and restricted cash acquired in the progressive waste acquisition
                                                                                     
          foreign currency transaction loss
                                      133,000 -31,000 221,000 -1,302,000   590,000                                         
          interest income on restricted investments
                                      -17,000 -6,000 -120,000                                             
          proceeds from option and warrant exercises
                                         1,946,000                                         
          non-cash consideration received for asset sales
                                          80,340,000 4,500,000 8,132,000                                         
          interest income on restricted cash and investments
                                                                                     
          cash acquired in the progressive waste acquisition
                                              -6,000                                       
          change in restricted cash and investments, net of interest income
                                                                                     
          tax withholdings related to net share settlements of restricted share units
                                         -240,000 -133,000 -591,000 -13,030,000  -112,000                                       
          effect of exchange rate changes on cash and equivalents
                                         868,000 278,000 567,000 82,000 -115,000 -260,000                                       
          net increase in cash and equivalents
                                         -61,316,000 95,235,000 131,550,000 114,114,000 35,089,000 63,711,000                                       
          cash and equivalents at beginning of year
                                                                                     
          less: change in cash held for sale
                                         -123,000 278,000 -278,000 -27,000                                         
          cash and equivalents at end of year
                                                                                     
          interest income on restricted assets
                                          -104,000 -146,000 -137,000  -120,000                                       
          change in restricted assets, net of interest income
                                          1,775,000 -757,000 4,446,000  -301,000                                       
          cash and equivalents at beginning of period
                                          154,382,000                                        
          cash and equivalents at end of period
                                          95,513,000 131,272,000 268,469,000  63,711,000                                       
          issuance of common shares to acquire progressive waste
                                                                                    
          foreign currency transaction (gain) loss
                                                                                     
          6
                                                                                     
          less: cash held for sale
                                                                                     
          1)
                                                                                     
          foreign currency transaction gain
                                              350,000                                       
          1.
                                                                                     
          loss on disposal of assets
                                                                                     
          net inflow (outflow) of cash related to the following activities
                                                                                     
          operating
                                                                                     
          items not affecting cash
                                                                                     
          restricted share expense
                                                1,322,000    1,233,194,000 806,000  2,759,000 -241,000 62,000 716,000 716,000 2,004,000 58,000 -43,000 490,000 490,000 2,034,000    2,107,000 2,107,000 849,000 5,000 174,000 174,000 1,977,000  -416,432 -1,068,000 1,485,000 413,000 413    
          accretion of landfill closure and post-closure costs
                                                1,581,000    1,602,401,000 1,599,000  6,132,000 -1,000 -1,000 1,539,000 1,539,000 5,655,000 16,000 -3,000 1,409,000 1,409,000 5,240,000 7,000   5,071,000 5,071,000 -5,000 7,000 1,269,000 1,269,000 3,827,000   -2,248,000 3,130,000 880,000     
          amortization of capital assets
                                                37,717,000    37,167,891,000 36,109,000  152,895,000 -404,000 568,000 37,155,000 37,155,000 152,728,000 -245,000 295,000 38,076,000 38,076,000 141,192,000 978,000   131,088,000 131,088,000 994,000 -298,000 32,449,000 32,449,000 100,559,000   -54,560,000 74,532,000 19,067,000     
          amortization of landfill assets
                                                17,147,000    21,433,398,000 16,602,000  76,289,000 835,000 4,293,000 16,154,000 16,154,000 80,834,000 1,287,000 2,390,000 17,863,000 17,863,000 79,341,000 476,000   76,419,000 76,419,000 1,006,000 4,174,000 18,206,000 18,206,000 72,434,000   -36,602,000 53,501,000 13,393,000     
          interest on long-term debt
                                                644,000  -57,996,000 -786,088,000 772,236,000 764,000  3,418,000 1,000 12,000 854,000 854,000   -7,000 856,000 856,000 5,665,000 23,000   6,035,000 6,035,000 -14,902,000 9,000 1,353,000 1,353,000 4,672,000 12,837,000 -8,261,783 -2,186,000 2,902,000 709,000  7,851,000 -7,971,000 8,766,000 
          non-cash interest income
                                                -25,000    -66,935,000 -65,000                                
          net gain on sale of capital and landfill assets
                                                -138,000                                  -13,000 19,000 
          net loss on financial instruments
                                                13,862,000     10,759,000  24,214,000  3,814,000 3,335,000   1,392,000    1,725,000                    
          deferred income tax (recovery) expense
                                                -9,870,000                                     
          landfill closure and post-closure expenditures
                                                -829,000 -829,000   -1,264,953,000 -1,047,000 -1,047,000    -811,000     -795,000    -1,132,000 -1,534,000     -1,701,000    1,165,391        
          changes in non-cash working capital items
                                                2,754,000 2,754,000 -57,055,000 10,462,444,000 -10,499,139,000 2,139,000 2,139,000   23,954,000 -18,359,000  11,530,000 20,113,000  -11,999,000    41,733,000 -25,743,000   33,901,000  -34,633,000    -13,295,985 -13,966,000 27,304,000  15,090    
          cash generated from operating activities
                                                73,073,000 73,073,000 274,012,000 -85,916,997,000 85,969,825,000 88,175,000 88,175,000 399,726,000 -15,895,000 37,244,000 74,872,000 74,872,000 450,735,000 14,332,000 10,733,000 94,776,000 94,776,000 336,761,000 -48,593,000 57,563,000 65,348,000 395,706,000 395,706,000 40,571,000 37,978,000 54,654,000 54,654,000 293,861,000 72,709,000 -81,148,042 -175,073,000 256,269,000 44,040,000 44,040 76,597,000 66,456,000 
          investing
                                                                                     
          acquisitions
                                                -130,000 -130,000   -103,162,000 -29,838,000 -29,838,000    -8,298,000     -95,000    -35,317,000 -6,544,000     -12,380,000            
          investment in other receivables
                                                -41,000 -41,000   -180,977,000 -23,000 -23,000         -134,000                      
          proceeds from other receivables
                                                29,000 29,000   15,990,000 10,000 10,000 76,000 2,000 -1,000 19,000 19,000 556,000 -1,000 139,000 139,000 440,000 8,000 -25,000 124,000 474,000 474,000 3,000 4,000 115,000 115,000 554,000   -342,000 487,000 139,000     
          funded landfill post-closure costs
                                                -249,000 -249,000   -70,713,000 -287,000 -287,000    -344,000     -102,000    12,000 -86,000     -98,000            
          purchase of capital assets
                                                -48,620,000 -48,620,000   -61,187,768,000 -51,232,000 -51,232,000    -34,430,000     -51,380,000    3,501,000 -37,386,000     -15,902,000            
          purchase of landfill assets
                                                -15,866,000 -15,866,000   -14,192,036,000 -9,964,000 -9,964,000    -9,408,000     -10,006,000    -3,083,000 -12,705,000     -9,507,000            
          proceeds from the sale of capital and landfill assets
                                                722,000 722,000 5,759,000 -916,404,000 915,737,000 1,263,000 1,263,000 28,528,000 -21,624,000 22,801,000 361,000 361,000                3,001,000   -3,861,000 4,487,000 64,000     
          proceeds from asset divestiture
                                                     76,190,000 76,190,000                               
          investment in landfill development assets
                                                -126,000 -126,000   -125,933,000 -67,000 -67,000    -186,000     -1,776,000    1,718,000 -2,266,000     -622,000            
          cash utilized in investing activities
                                                -64,281,000 -64,281,000   -75,026,052,000 -13,948,000 -13,948,000    -52,287,000     -62,234,000    -33,083,000 -58,146,000     -35,721,000            
          financing
                                                                                     
          repayment of long-term debt
                                                -79,311,000 -79,311,000   -547,274,743,000 -133,257,000 -133,257,000    -64,848,000     -32,042,000    9,181,000 -65,845,000     -84,816,000            
          proceeds from the exercise of stock options, net of related costs
                                                96,000 96,000                                    
          repurchase of common shares and related costs
                                                    -78,010,716,000 -15,284,000 -15,284,000                               
          purchase of, net of proceeds from, restricted shares
                                                -3,593,000 -3,593,000   -871,519,000 -2,481,000 -2,481,000                               
          dividends paid to shareholders
                                                -13,516,000 -13,516,000   -14,560,496,000 -14,504,000 -14,504,000    -15,656,000     -15,981,000    -1,443,000 -14,769,000                 
          cash utilized in financing activities
                                                -5,740,000 -5,740,000   -9,194,556,000 -72,444,000 -72,444,000    -10,164,000     -31,250,000     -10,726,000                 
          effect of foreign currency translation on cash and cash equivalents
                                                5,087,000 5,087,000   955,485,000 -6,485,000 -6,485,000   4,016,000 -2,119,000   3,471,000  -1,064,000    -817,000 381,000 1,124,000 1,124,000  -332,000 425,000 425,000 10,000    2,330,000 342,000     
          net cash inflow
                                                8,139,000 8,139,000      9,656,000   10,302,000 10,302,000 2,040,000  4,587,000 228,000 228,000 15,797,000    737,000 737,000 2,868,000    8,415,000     2,431,000     
          cash and cash equivalents, beginning of year
                                                35,780,000 35,780,000    41,636,000 41,636,000 31,980,000   31,980,000 31,980,000 29,940,000   29,940,000 29,940,000 14,143,000   14,143,000 13,406,000 13,406,000   13,406,000 13,406,000 4,991,000    11,938,000 4,991,000     
          cash and cash equivalents, end of period
                                                43,919,000 43,919,000   39,597,066,000 36,934,000 36,934,000  -2,114,000 -10,340,000 42,282,000 42,282,000  -7,919,000 4,815,000 30,168,000 30,168,000  -2,825,000 7,248,000 11,000,000   3,985,000 1,117,000 11,774,000 11,774,000      7,422,000     
          supplemental cash flow information:
                                                                                     
          cash and cash equivalents are comprised of:
                                                                                     
          cash
                                                43,918,000    39,594,067,000 36,933,000  37,324,000 -4,890,000 -8,057,000 39,996,000 39,996,000 28,200,000 -2,219,000 -893,000 30,163,000 30,163,000 28,929,000 -2,827,000   14,142,000 14,142,000 3,984,000 1,118,000 11,773,000 11,773,000 13,406,000   2,278,000 4,991,000 7,422,000     
          cash equivalents
                                                1,000    2,999,000 1,000  4,312,000 2,776,000 -2,283,000 2,286,000 2,286,000 3,780,000 -5,700,000 5,708,000 5,000 5,000 1,011,000 2,000   1,000 1,000   1,000 1,000           
          cash and cash equivalents are comprised of: - sum
                                                43,919,000     36,934,000  41,636,000  -10,340,000 42,282,000 42,282,000 31,980,000 -7,919,000  30,168,000 30,168,000 29,940,000                    
          cash paid during the period for:
                                                                                     
          income taxes
                                                8,330,000    9,663,038,000 12,962,000  35,333,000 -4,832,000 -1,443,000 12,322,000 12,322,000 35,429,000 -4,999,000 473,000 11,692,000 11,692,000 53,531,000 -6,126,000   49,509,000 49,509,000 -7,143,000 1,306,000 15,043,000 15,043,000 21,226,000   -14,204,000 16,785,000 3,840,000     
          interest
                                                12,190,000    15,584,957,000 15,043,000  60,358,000 -255,000 1,416,000 14,369,000 14,369,000 62,336,000 2,099,000 -793,000 15,278,000 15,278,000 57,109,000 1,169,000   59,289,000 59,289,000  -1,314,000 16,296,000 16,296,000 39,426,000   -25,972,000 33,428,000 8,401,000     
          condensed consolidated statement of operations
                                                                                     
          revenues
                                                460,205,000                                  268,411,000  253,700,000 
          operating expenses
                                                297,500,000                                  156,195,000  148,597,000 
          selling, general and administration
                                                58,716,000                                     
          amortization
                                                64,009,000                                  41,946,000  41,154,000 
          operating income
                                                49,174,000                                  36,998,000  31,349,000 
          net foreign exchange loss
                                                -283,000                                  3,000  1,000 
          income before net income tax expense
                                                23,242,000                                     
          net income tax expense
                                                5,121,000                                  2,073,000  6,454,000 
          adjusted ebitda
                                                106,872,000                                 75,941    
          adjusted ebita
                                                54,161,000                                     
          adjusted operating income or adjusted operating ebit
                                                52,057,000                                     
          adjusted net income
                                                28,242,000                                     
          free cash flow
                                                34,685,000                                 41,860 38,504,000  21,476,000 
          add back the following:
                                                                                     
          income tax (recovery) expense
                                                -3,920,000                                     
          transaction and related costs - sg&a
                                                81,000                                     
          fair value movements in stock options - sg&a
                                                2,716,000                                     
          restricted share expense - sg&a
                                                423,000                                     
          non-operating expenses - sg&a
                                                21,871,000                                     
          less the following:
                                                                                     
          amortization of capital and landfill assets
                                                54,864,000                                     
          net income tax recovery
                                                -9,939,000                                     
          note:
                                                                                     
          (*)amounts exclude long-term incentive plan ("ltip") compensation.
                                                                                     
          balance at december 31, 2015
                                                                                     
          net loss
                                                                                     
          dividends declared
                                                                                  2,523,000  2,381,000 
          restricted shares purchased
                                                                                     
          vesting of restricted shares
                                                                                     
          common shares issued on exercise of share based options, net of related costs
                                                                                     
          share based compensation
                                                                                     
          common shares acquired by u.s. long-term incentive plan
                                                 2,606,000                                    
          deferred compensation obligation
                                                 -2,606,000                                    
          foreign currency translation adjustment
                                                                                     
          balance at march 31, 2016
                                                                                     
          balance at december 31, 2014
                                                                                     
          restricted shares purchased, net of restricted shares sold
                                                                                     
          common shares issued on exercise of share based options
                                                                                     
          balance at march 31, 2015
                                                                                     
          loss on extinguishment of debt
                                                                                     
          net loss on sale of capital and landfill assets
                                                     -9,194,000     3,033,000                           
          re-measurement gain on previously held equity investment
                                                          -5,156,000                           
          deferred income taxes
                                                    -2,299,284,000 284,000     -3,487,000    4,004,000 7,024,000 7,024,000 17,841,000 -920,000   2,315,000 2,315,000 1,435,000 1,302,000 5,620,000 5,620,000 19,410,000   -14,211,000 19,846,000 1,865,000     
          net loss from equity accounted investee
                                                       82,000   82,000 82,000  24,000 -27,000 33,000 33,000 41,000 -4,000   96,000 96,000 10,000   4,000 118,000          
          restricted cash deposits
                                                          -1,000     -1,000                      
          payment of deferred financing costs
                                                          -48,000     -48,000     -55,000     -1,020,000            
          cash generated from (utilized in) financing activities
                                                                 209,593,000          134,227,000     30,650,000     
          cash and cash equivalents, beginning of period or year
                                                        -10,340,000     4,815,000     7,248,000     1,117,000              
          cash and cash equivalents, end of year
                                                       41,636,000     31,980,000     29,940,000    14,143,000 14,143,000     13,406,000    4,991,000      
          cash paid during the period or year for:
                                                                                     
          operating and investing
                                                                                     
          stock option
                                                                                     
          expense
                                                                                     
          ltip portion of restricted
                                                                                     
          share expense
                                                                                     
          acquisition and related
                                                                                     
          costs
                                                                                     
          non-operating or non- recurring expenses
                                                                                     
          restructuring expenses
                                                                                     
          capital and landfill asset purchases
                                                                                     
          capital and landfill asset change in non-cash working capital
                                                                                     
          purchase of restricted shares
                                                          -3,455,000     -3,006,000                      
          net realized foreign
                                                                                     
          exchange gain
                                                                                     
          (*)amounts exclude ltip compensation.
                                                                                     
          landfill closure and post- closure expenditures
                                                                                     
          landfill closure and post- closure cost accretion expense
                                                                                     
          non-cash interest expense
                                                                                 709    
          current income tax expense
                                                                                     
          net gain on sale of capital landfill assets
                                                                                     
          proceeds from the exercise of stock options
                                                    -107,053,000 53,000 53,000 123,000 -3,000 3,000 32,000 32,000 112,000   3,000 3,000 403,000   310,000 2,385,000 2,385,000    292,000 4,261,000          
          net cash outflow
                                                                    -3,143,000                 
          net (gain) loss on financial instruments
                                                                                   -1,701,000 
          net income from equity accounted investee
                                                                                     
          net cash (outflow) inflow
                                                     -4,702,000 -4,702,000                   -1,632,000            
          write-off of deferred financing costs
                                                            1,240,000     11,726,000                    
          investment in cost accounted for investee
                                                                                     
          investments in cost and equity accounted investees
                                                                                     
          cash paid during the year for:
                                                                                     
          deferred income tax expense
                                                            28,908,000                         
          investment in cost accounted investee
                                                                                     
          net loss (gain) on sale of capital and landfill assets
                                                           3,033,000                          
          net loss (gain) on financial instruments
                                                           3,335,000                          
          net gain on financial instruments
                                                               -2,265,000          -1,926,000  -5,493,000       305,000  -5,485,000 
          net (income) income from equity accounted investee
                                                                                     
          net loss on sale of capital assets
                                                                                     
          investments in cost and equity accounted for investees
                                                                                     
          proceeds from the sale of capital assets
                                                            21,183,000 -12,015,000 12,142,000 1,121,000 1,121,000 2,761,000 -308,000 129,000 719,000 5,925,000 5,925,000 977,000 -1,896,000 2,673,000 2,673,000           
          cash (utilized in) generated from financing activities
                                                                         -20,990,000            
          interest on long-term debt (amortization of
                                                                                     
          deferred financing costs)
                                                            3,436,000                         
          net gain on sale of capital assets
                                                               -617,000          -1,423,000            
          net (income) loss from equity accounted investee
                                                                                     
          acquisitions, net of cash acquired
                                                                                     
          purchase of investment
                                                                                     
          repurchase of common shares
                                                                   -1,860,000 -29,308,000     -23,500,000            
          goodwill impairment
                                                                     360,557,000 360,557,000               
          net (gain) loss on sale of capital assets
                                                                                     
          restricted share (recovery) expense
                                                                                     
          write-off of landfill development assets
                                                                           290,000    77,000      
          proceeds from asset divestitures
                                                                           23,753,000          
          common shares issued, net of issue costs
                                                                               209,264,000      
          dividends paid to share and participating preferred share holders
                                                                                     
          expenses
                                                                                     
          restructuring
                                                                                     
          other expenses
                                                                                     
          income before income tax expense (recovery) and net loss
                                                                                     
          from equity accounted investee
                                                                                     
          income tax expense
                                                                                  9,548,000  8,917,000 
          current
                                                                                     
          deferred
                                                                                     
          other comprehensive income
                                                                                     
          derivatives designated as cash flow hedges, net of
                                                                                     
          income tax
                                                                                     
          settlement of derivatives designated as cash flow hedges,
                                                                                     
          net of income tax
                                                                                     
          comprehensive income
                                                                                     
          net income - controlling interest
                                                                                     
          net income - non-controlling interest
                                                                                     
          comprehensive income - controlling interest
                                                                                     
          comprehensive income - non-controlling interest
                                                                                     
          net income per weighted-average share, basic
                                                                                     
          net income per weighted-average share, diluted
                                                                                     
          weighted-average number of shares outstanding
                                                                                     
          (thousands), basic
                                                                                     
          (thousands), diluted
                                                                                     
          net (loss) income
                                                                      -196,136,000               
          netloss on sale of capital assets
                                                                                     
          net foreign exchangeloss
                                                                                     
          income before income tax expense and net loss from equity accounted investee
                                                                                     
          other comprehensive(loss) income
                                                                                     
          derivatives designated as cash flow hedges, net of income tax 2,563 and 3,411
                                                                                     
          settlement of derivatives designated as cash flow hedges, net of income tax
                                                                                     
          comprehensive(loss) income
                                                                                     
          net income- controlling interest
                                                                                     
          net income- non-controlling interest
                                                                                     
          comprehensive(loss) income- controlling interest
                                                                                     
          comprehensive income- non-controlling interest
                                                                                     
          weighted-average number of shares outstanding (thousands), basic
                                                                                     
          weighted-average number of shares outstanding (thousands), diluted
                                                                                     
          acquisitionsn net of cash acquired
                                                                                     
          derivatives designated as cash flow hedges, net of income tax 2,683 and 848
                                                                                     
          income from equity accounted investee
                                                                         4,000            
          proceeds from exercise of stock options
                                                                         292,000            
          dividends paid to share and participating preferred shareholders
                                                                         -15,429,000            
          balance at december 31, 2010
                                                                          1,878,286,000           
          dividends
                                                                                     
          common shares issued on exercise of stock options
                                                                          510,000           
          derivatives designated as cash flow hedges, net of income tax
                                                                                     
          balance at march 31, 2011
                                                                          1,863,368,000           
          restricted cash withdrawals
                                                                               82,000      
          operating results
                                                                                     
          conversion costs
                                                                                  93,000  115,000 
          other incomes
                                                                                 24 44,000  35,000 
          income before net income tax expense and net income from equity
                                                                                     
          accounted investee
                                                                                     
          weighted-average number of shares outstanding (thousands),
                                                                                     
          basic
                                                                                     
          diluted
                                                                                     
          adjusted operating income
                                                                                     
          adjusted net income(a) per weighted-average share, basic
                                                                                     
          adjusted net income(a) per weighted-average share, diluted
                                                                                     
          replacement and growth expenditures
                                                                                     
          replacement expenditures
                                                                                  19,322,000   
          growth expenditures
                                                                                  8,839,000   
          total replacement and growth expenditures
                                                                                  28,161,000  39,217,000 
          free cash flow(b) per weighted-average share, diluted
                                                                                     
          total dividends declared
                                                                                     
          total dividends declared per weighted-average share, diluted
                                                                                     
          march 31
                                                                                     
          june 30
                                                                                     
          september 30
                                                                                     
          december 31
                                                                                     
          stock option expense
                                                                                 761    
          acquisition and related costs
                                                                                 1,998    
          interest on long-term debt — high yield defeasance interest
                                                                                     
          financing and landfill development costs
                                                                                     
          net realized foreign exchange loss
                                                                                 30    
          landfill closure and post-closure cost accretion expense
                                                                                 880    
          sg&a
                                                                                  32,301,000  31,881,000 
          income before income tax expense and net loss from equity
                                                                                     
          commodity swaps designated as cash flow hedges, net of income tax
                                                                                     
          settlement of commodity swaps designated as cash flow hedges,
                                                                                     
          purchase of restricted shares or trust units
                                                                                     
          effect of foreign currency translation on cash and cash
                                                                                     
          equivalents
                                                                                     
          dividends paid to share and participating preferred shareholders and distributions paid to unitholders
                                                                                     
          loss from equity accounted investee
                                                                                25,000     
          cash paid (recovered) during the period for:
                                                                                     
          recovery (payment) of deferred financing costs
                                                                                     
          dividends and distributions paid to share or unitholders and dividends paid to participating preferred shareholders
                                                                                     
          selling, general and administrative
                                                                                  33,272,000  32,600,000 
          net foreign exchange gain
                                                                                  61,000  93,000 
          income before income taxes
                                                                                  28,657,000  24,022,000 
          net income per weighted-average share or trust unit, basic
                                                                                  200  190 
          net income per weighted-average share or trust unit, diluted
                                                                                  200  180 
          weighted-average number of shares or trust units
                                                                                     
          outstanding (thousands), basic
                                                                                  82,294,000  70,809,000 
          outstanding (thousands), diluted
                                                                                  93,431,000  81,946,000 
          operating and free cash flow
                                                                                     
          free cash flow(b) per weighted-average share or trust unit
                                                                                     
          outstanding, diluted
                                                                                  410  260 
          dividends and distributions
                                                                                     
          dividends and distributions declared
                                                                                  18,546,000  17,495,000 
          total dividends and distributions declared
                                                                                  21,069,000  19,876,000 
          total dividends or distributions declared per weighted-average
                                                                                     
          share or trust unit, diluted
                                                                                  230  240 
          consolidated statement of operations
                                                                                     
          net income on financial instruments
                                                                                  98,000   
          ebitda
                                                                                  80,725,000  76,987,000 
          accretion of landfill closure post-closure costs
                                                                                     
          net (gain) loss on sale of capital and landfill assets
                                                                                    -126,000 
          future income taxes
                                                                                     
          cash paid (received) during the period for:
                                                                                     
          dividends and distributions paid to share or unitholders and
                                                                                     
          dividends paid to participating preferred shareholders
                                                                                     
          cash and cash equivalents are
                                                                                     
          comprised of:
                                                                                     
          replacement capital and landfill purchases ("replacement
                                                                                     
          expenditures")
                                                                                    16,983,000 
          growth capital and landfill purchases
                                                                                    22,234,000 
          free cash flow (b) per weighted-average share or trust unit
                                                                                     
          share or trust unit based compensation
                                                                                     
          write-off of landfill development costs
                                                                                     
          restricted cash proceeds
                                                                                     
          investment in landfill development costs
                                                                                     
          common shares or trust units issued, net of issue costs
                                                                                     
          purchase of restricted trust units
                                                                                     
          effect of foreign exchange changes on foreign cash and cash equivalents
                                                                                     
          cash and cash equivalents, beginning of period