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SEGMENT REPORTING - Summary of Financial Information by Reportable Segment (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |
Revenues | $ 1,264,542 | $ 1,085,089 | $ 889,211
Depreciation and amortization | 170,705 | 126,351 | 103,590
Operating income (loss) | 80,427 | 95,394 | 77,660
Interest expense, net | 36,837 | 23,013 | 20,927
Capital expenditures | 154,907 | 130,960 | 123,295
Goodwill | 735,670 | 274,458 | 232,860
Total assets | 2,535,470 | 1,449,215 | 1,283,580
Eastern |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill | 73,893 | 52,406 | 52,072
Western |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill | 285,056 | 183,286 | 163,728
Mid-Atlantic |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill | 332,247 | 0 | 0
Resource Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Goodwill | 44,474 | 38,766 | 17,060
Operating Segments | Eastern |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 374,463 | 340,058 | 264,569
Depreciation and amortization | 50,881 | 47,673 | 33,572
Operating income (loss) | 27,198 | 16,559 | 12,937
Interest expense, net | 638 | 565 | 456
Capital expenditures | 43,817 | 38,501 | 31,489
Goodwill | 73,893 | 52,406 | 52,072
Total assets | 434,323 | 372,895 | 357,446
Operating Segments | Western |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 511,640 | 445,153 | 389,520
Depreciation and amortization | 82,291 | 64,116 | 61,055
Operating income (loss) | 62,318 | 65,453 | 49,035
Interest expense, net | 380 | 508 | 159
Capital expenditures | 82,706 | 65,190 | 72,892
Goodwill | 285,056 | 183,286 | 163,728
Total assets | 1,001,090 | 737,658 | 688,826
Operating Segments | Mid-Atlantic |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 85,640 | 0 | 0
Depreciation and amortization | 20,263 | 0 | 0
Operating income (loss) | (5,790) | 0 | 0
Interest expense, net | 0 | 0 | 0
Capital expenditures | 5,271 | 0 | 0
Goodwill | 332,247 | 0 | 0
Total assets | 553,339 | 0 | 0
Operating Segments | Resource Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 292,799 | 299,878 | 235,122
Depreciation and amortization | 14,202 | 12,082 | 7,060
Operating income (loss) | 5,639 | 15,862 | 17,591
Interest expense, net | 143 | 146 | 168
Capital expenditures | 14,586 | 15,172 | 12,094
Goodwill | 44,474 | 38,766 | 17,060
Total assets | 253,090 | 191,118 | 127,304
Inter-company revenue |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (281,736) | (239,951) | (202,298)
Inter-company revenue | Eastern |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (92,938) | (83,201) | (66,126)
Inter-company revenue | Western |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (173,044) | (151,016) | (132,914)
Inter-company revenue | Mid-Atlantic |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (417) | 0 | 0
Inter-company revenue | Resource Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | (15,337) | (5,734) | (3,258)
Corporate Entities |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 0 | 0 | 0
Depreciation and amortization | 3,068 | 2,480 | 1,903
Operating income (loss) | (8,938) | (2,480) | (1,903)
Interest expense, net | 35,676 | 21,794 | 20,144
Capital expenditures | 8,527 | 12,097 | 6,820
Goodwill | 0 | 0 | 0
Total assets | $ 293,628 | $ 147,544 | $ 110,004

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