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GOODWILL AND INTANGIBLE ASSETS - Schedule of Goodwill Activity (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2026 USD ($)
Goodwill [Roll Forward] |
Goodwill, beginning balance | $ 1,120,056
Acquisitions | 73,471
Business Combination Adjustments | 573
Goodwill, ending balance | 1,194,100
Eastern |
Goodwill [Roll Forward] |
Goodwill, beginning balance | 110,533
Acquisitions | 0
Business Combination Adjustments | 0
Goodwill, ending balance | 110,533
Western |
Goodwill [Roll Forward] |
Goodwill, beginning balance | 371,035
Acquisitions | 0
Business Combination Adjustments | 573
Goodwill, ending balance | 371,608
Mid-Atlantic |
Goodwill [Roll Forward] |
Goodwill, beginning balance | 584,136
Acquisitions | 73,471
Business Combination Adjustments | 0
Goodwill, ending balance | 657,607
Resource Solutions |
Goodwill [Roll Forward] |
Goodwill, beginning balance | 54,352
Acquisitions | 0
Business Combination Adjustments | 0
Goodwill, ending balance | $ 54,352

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