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BUSINESS COMBINATIONS - Summary of Purchase Price Paid for Acquisitions (Detail) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Purchase Price:      
Cash used in acquisitions, net of cash acquired $ 547,587 $ 56,250  
Allocated as follows:      
Excess purchase price allocated to goodwill 619,683   $ 274,458
Waste Collection Acquisitions      
Purchase Price:      
Cash used in acquisitions, net of cash acquired 544,359 55,053  
Holdbacks to sellers and contingent consideration 1,900 3,842  
Total consideration 546,259 58,895  
Allocated as follows:      
Current assets 15,364 7,584  
Land 2,213 2,804  
Buildings and improvements 8,666 5,308  
Machinery and equipment 90,276 6,712  
Operating lease right-of-use assets 11,260 405  
Other non-current assets 0 40  
Deferred tax liability (5,160) 0  
Current liabilities (15,195) (3,577)  
Operating lease liabilities, less current portion (9,887) (282)  
Fair value of assets acquired and liabilities assumed 201,087 30,134  
Excess purchase price allocated to goodwill 345,172 28,761  
Waste Collection Acquisitions | Covenants Not-to-Compete      
Allocated as follows:      
Intangible assets 10,550 1,415  
Waste Collection Acquisitions | Customer Relationships      
Allocated as follows:      
Intangible assets $ 93,000 $ 9,725