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GOODWILL AND INTANGIBLE ASSETS - Summary of Goodwill Activity (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 1,002,266
Acquisitions	46,823
Business Combination Adjustments	446
Goodwill, ending balance	1,049,535
Eastern
Goodwill [Roll Forward]
Goodwill, beginning balance	89,544
Acquisitions	20,989
Business Combination Adjustments	0
Goodwill, ending balance	110,533
Western
Goodwill [Roll Forward]
Goodwill, beginning balance	357,143
Acquisitions	0
Business Combination Adjustments	2,455
Goodwill, ending balance	359,598
Mid-Atlantic
Goodwill [Roll Forward]
Goodwill, beginning balance	510,917
Acquisitions	16,400
Business Combination Adjustments	(2,009)
Goodwill, ending balance	525,308
Resource Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	44,662
Acquisitions	9,434
Business Combination Adjustments	0
Goodwill, ending balance	$ 54,096

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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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