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GOODWILL AND INTANGIBLE ASSETS - Summary of Goodwill Activity (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 735,670
Acquisitions	355
Measurement Period Adjustments	1,228
Goodwill, ending balance	737,253
Eastern
Goodwill [Roll Forward]
Goodwill, beginning balance	73,893
Acquisitions	355
Measurement Period Adjustments	0
Goodwill, ending balance	74,248
Western
Goodwill [Roll Forward]
Goodwill, beginning balance	285,056
Acquisitions	0
Measurement Period Adjustments	668
Goodwill, ending balance	285,724
Mid-Atlantic
Goodwill [Roll Forward]
Goodwill, beginning balance	332,247
Acquisitions	0
Measurement Period Adjustments	372
Goodwill, ending balance	332,619
Resource Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	44,474
Acquisitions	0
Measurement Period Adjustments	188
Goodwill, ending balance	$ 44,662

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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