INCOME TAXES - Components of Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Accrued payroll and employee benefits	$ 17,100	$ 14,100
Workers’ compensation	10,900	10,600
Share-based compensation	7,100	5,700
Legal and compliance matters	3,900	4,700
Lease liability	25,600	27,800
Net operating loss carryforwards	8,900	11,600
Tax credit carryforwards	2,700	2,900
Other assets	200	200
Gross deferred tax assets	76,400	77,600
Less: valuation allowance	(5,400)	(5,200)
Net deferred tax assets	71,000	72,400
Deferred tax liabilities:
Property and equipment(1)	(13,500)	(6,600)
Amortization of intangible assets	(61,700)	(48,500)
Investment in partnerships	(10,800)	(10,000)
Right of use asset	(24,900)	(27,000)
Other liabilities	(700)	(700)
Gross deferred tax liabilities	(111,600)	(92,800)
Deferred Income Tax Liabilities, Net	$ (40,635)	$ (20,411)