Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Allowance for uncollectible accounts	$ 6,400	$ 8,394
Accrued employee benefits	7,372	7,533
Stock compensation	2,828	2,735
Accrued self-insurance	7,810	6,626
Acquisition costs	4,244	2,631
Net operating loss carry forward	31,097	5,245
Intangible asset impairment	6	6
Interest Expense	7,820	0
Lease payable	22,591	23,220
Government stimulus advance	0	21,591
Payroll tax	0	5,895
Other	1,630	312
Gross deferred tax assets	91,798	84,188
Less: valuation allowance	(3,590)	(3,121)
Net deferred tax assets	88,208	81,067
Deferred tax liabilities:
Amortization of intangible assets	(120,303)	(100,339)
Tax depreciation in excess of book depreciation	(17,386)	(17,584)
Prepaid expenses	(2,063)	(1,733)
Non-accrual experience accounting method	(666)	(829)
Right of use asset	(22,105)	(22,781)
Other	(12,015)	(7,827)
Deferred tax liabilities	(174,538)	(151,093)
Net deferred tax liability	$ (86,330)	$ (70,026)