FAIR VALUE OF FINANCIAL INSTRUMENTS - Recurring Fair Value Measurements (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Assets:
Restricted investment securities - landfill closure	$ 2,005	$ 1,900
Liabilities:
Derivative Asset, Statement Of Financial Position Extensible Enumeration, Not Disclosed Flag	Interest rate swaps	Interest rate swaps
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Interest rate swaps	$ 0	$ 0
Total assets	2,005	1,900
Liabilities:
Contingent consideration - acquisition	0	0
Interest rate swaps	0
Total	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Landfill
Assets:
Restricted investment securities - landfill closure	2,005	1,900
Recurring | Significant Other Observable Inputs (Level 2)
Assets:
Interest rate swaps	11,910	11,806
Total assets	11,910	11,806
Liabilities:
Contingent consideration - acquisition	0	0
Interest rate swaps	18
Total	18
Recurring | Significant Other Observable Inputs (Level 2) | Landfill
Assets:
Restricted investment securities - landfill closure	0	0
Recurring | Significant Unobservable Inputs (Level 3)
Assets:
Interest rate swaps	0	0
Total assets	0	0
Liabilities:
Contingent consideration - acquisition	376	965
Interest rate swaps	0
Total	376
Recurring | Significant Unobservable Inputs (Level 3) | Landfill
Assets:
Restricted investment securities - landfill closure	$ 0	$ 0