Income Taxes - Components of Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred income tax assets:
Acquisition and debt related costs	$ 5,550	$ 5,814
Net operating losses	180,693	180,658
Goodwill impairment	54,271	53,972
Self-insurance	7,308	6,847
Deferred revenue	2,546	2,718
Cash flow hedge	571
Restricted stock	4,411	4,472
Tax credits	10,230	9,317
Legal settlements	8,590
Lease obligations	32,078
Other	5,200	7,779
Total deferred income tax assets	311,448	271,577
Valuation allowance	(5,216)	(2,762)
Net deferred tax assets	306,232	268,815
Deferred income tax liabilities:
Property and equipment	225,827	192,224
Amortization - Goodwill	46,688	41,803
Amortization - Other intangibles	22,979	18,144
Right of use assets	31,940
Cash flow hedge		836
Other	2,558	2,992
Total deferred income tax liabilities	(329,992)	(255,999)
Net deferred income tax (liabilities) assets	$ (23,760)
Net deferred income tax (liabilities) assets		$ 12,816