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SEGMENT REPORTING - Summary of Financial Information by Reportable Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Segment Reporting Information [Line Items] |  |  |
Revenues | $ 417,101 | $ 341,008 |
Cost of operations | 280,452 | 230,792 |
General and administration | 56,486 | 44,334 |
Depreciation and amortization | 71,491 | 54,037 |
Expense from acquisition activities | 5,529 | 5,010 |
Operating income | 3,143 | 6,835 |
Interest expense, net | 11,598 | 13,070 |
Other income | (320) | (352) |
Loss before income taxes | (8,135) | (5,883) |
Capital expenditures | 55,475,000 | 30,251,000 |
Total assets | 3,205,870 | 2,477,254 | $ 3,230,068
Solid waste |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 334,904 | 265,937 |
Solid waste | Eastern |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 104,740 | 100,191 |
Solid waste | Western |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 152,316 | 123,643 |
Solid waste | Mid-Atlantic |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 77,848 | 42,103 |
Resource Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 82,197 | 75,071 |
Inter-company revenue |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (81,675) | (72,260) |
Cost of operations | (81,675) | (72,260) |
Inter-company revenue | Solid waste |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 78,199 | 69,137 |
Inter-company revenue | Solid waste | Eastern |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 24,575 | 24,289 |
Inter-company revenue | Solid waste | Western |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 51,811 | 44,367 |
Inter-company revenue | Solid waste | Mid-Atlantic |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 1,813 | 481 |
Inter-company revenue | Resource Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 3,476 | 3,123 |
Operating Segments | Solid waste |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 413,103 | 335,074 |
Cost of operations | 291,608 | 238,561 |
General and administration | 19,222 | 16,474 |
Depreciation and amortization | 64,730 | 48,267 |
Expense from acquisition activities | 3,654 | 3,796 |
Operating income | 33,889 | 27,976 |
Interest expense, net | 502 | 415 |
Capital expenditures | 48,936,000 | 23,156,000 |
Total assets | 2,591,161 | 1,961,922 |
Operating Segments | Solid waste | Eastern |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 129,315 | 124,480 |
Cost of operations | 93,939 | 92,500 |
General and administration | 6,053 | 6,158 |
Depreciation and amortization | 16,109 | 14,411 |
Expense from acquisition activities | 396 | 219 |
Operating income | 12,818 | 11,192 |
Interest expense, net | 226 | 201 |
Capital expenditures | 8,103,000 | 7,041,000 |
Total assets | 538,730 | 468,584 |
Operating Segments | Solid waste | Western |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 204,127 | 168,010 |
Cost of operations | 138,497 | 115,692 |
General and administration | 9,169 | 7,971 |
Depreciation and amortization | 30,360 | 23,291 |
Expense from acquisition activities | 844 | 573 |
Operating income | 25,257 | 20,483 |
Interest expense, net | 221 | 212 |
Capital expenditures | 15,200,000 | 11,678,000 |
Total assets | 1,131,276 | 921,962 |
Operating Segments | Solid waste | Mid-Atlantic |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 79,661 | 42,584 |
Cost of operations | 59,172 | 30,369 |
General and administration | 4,000 | 2,345 |
Depreciation and amortization | 18,261 | 10,565 |
Expense from acquisition activities | 2,414 | 3,004 |
Operating income | (4,186) | (3,699) |
Interest expense, net | 55 | 2 |
Capital expenditures | 25,633,000 | 4,437,000 |
Total assets | 921,155 | 571,376 |
Operating Segments | Resource Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 85,673 | 78,194 |
Cost of operations | 70,032 | 64,267 |
General and administration | 4,541 | 4,660 |
Depreciation and amortization | 5,134 | 4,794 |
Expense from acquisition activities | 992 | 26 |
Operating income | 4,974 | 4,447 |
Interest expense, net | 26 | 29 |
Capital expenditures | 4,070,000 | 5,713,000 |
Total assets | 276,983 | 249,930 |
Corporate Entities |  |  |
Segment Reporting Information [Line Items] |  |  |
Cost of operations | 487 | 224 |
General and administration | 32,723 | 23,200 |
Depreciation and amortization | 1,627 | 976 |
Expense from acquisition activities | 883 | 1,188 |
Operating income | (35,720) | (25,588) |
Interest expense, net | 11,070 | 12,626 |
Capital expenditures | 2,469,000 | 1,382,000 |
Total assets | $ 337,726 | $ 265,402 |

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