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REVENUE RECOGNITION - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | $ 377,163 | $ 289,645 | $ 718,170 | $ 552,241
Transferred at a point-in-time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 15,957 | 8,924 | 29,250 | 16,211
Transferred over time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 361,206 | 280,721 | 688,920 | 536,030
Collection |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 223,959 | 149,848 | 435,318 | 289,825
Landfill |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 24,782 | 26,141 | 44,332 | 48,901
Transfer station |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 35,344 | 32,426 | 61,817 | 56,371
Transportation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 4,997 | 5,062 | 9,113 | 9,824
Landfill gas-to-energy |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 1,983 | 1,321 | 4,493 | 3,245
Processing |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 36,155 | 28,137 | 67,846 | 52,518
National Accounts |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 49,943 | 46,710 | 95,251 | 91,557
Eastern |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 106,491 | 93,323 | 200,495 | 177,233
Eastern | Transferred at a point-in-time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 117 | 99 | 239 | 218
Eastern | Transferred over time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 106,374 | 93,224 | 200,256 | 177,015
Eastern | Collection |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 76,071 | 64,749 | 146,332 | 125,858
Eastern | Landfill |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 7,583 | 7,220 | 14,195 | 13,521
Eastern | Transfer station |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 18,634 | 17,698 | 32,762 | 31,680
Eastern | Transportation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 1,433 | 1,208 | 2,709 | 2,390
Eastern | Landfill gas-to-energy |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 539 | 173 | 997 | 386
Eastern | Processing |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 2,231 | 2,275 | 3,500 | 3,398
Eastern | National Accounts |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Western |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 145,042 | 124,229 | 275,371 | 235,262
Western | Transferred at a point-in-time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 677 | 690 | 1,294 | 1,421
Western | Transferred over time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 144,365 | 123,539 | 274,077 | 233,841
Western | Collection |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 105,936 | 85,099 | 205,805 | 163,967
Western | Landfill |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 17,199 | 18,921 | 30,137 | 35,380
Western | Transfer station |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 16,250 | 14,728 | 28,221 | 24,691
Western | Transportation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 3,564 | 3,854 | 6,404 | 7,434
Western | Landfill gas-to-energy |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 1,444 | 1,148 | 3,496 | 2,859
Western | Processing |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 649 | 479 | 1,308 | 931
Western | National Accounts |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Mid-Atlantic |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 42,412 | 0 | 84,015 | 0
Mid-Atlantic | Transferred at a point-in-time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Mid-Atlantic | Transferred over time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 42,412 | 0 | 84,015 | 0
Mid-Atlantic | Collection |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 41,952 | 0 | 83,181 | 0
Mid-Atlantic | Landfill |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Mid-Atlantic | Transfer station |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 460 | 0 | 834 | 0
Mid-Atlantic | Transportation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Mid-Atlantic | Landfill gas-to-energy |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Mid-Atlantic | Processing |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Mid-Atlantic | National Accounts |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Resource Solutions |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 83,218 | 72,093 | 158,289 | 139,746
Resource Solutions | Transferred at a point-in-time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 15,163 | 8,135 | 27,717 | 14,572
Resource Solutions | Transferred over time |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 68,055 | 63,958 | 130,572 | 125,174
Resource Solutions | Collection |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Resource Solutions | Landfill |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Resource Solutions | Transfer station |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Resource Solutions | Transportation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Resource Solutions | Landfill gas-to-energy |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Resource Solutions | Processing |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 33,275 | 25,383 | 63,038 | 48,189
Resource Solutions | National Accounts |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | $ 49,943 | $ 46,710 | $ 95,251 | $ 91,557

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