Income Taxes (Tax Effects of Temporary Differences That Give Rise to Significant Portions of Deferred Tax Assets and Liabilities) (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Jun. 04, 2018
Deferred income tax assets:
Accounts receivable	$ 1,332	$ 962
Leases	42,374	0
Other liabilities	4,980	7,076
Debt costs	841	0
Interest limitation	3,966	1,335
Tax credits	0	41
Net operating loss	0	8,304
Noncurrent deferred tax assets	53,493	17,718
Less: valuation allowance	0	0
Net noncurrent deferred tax assets	53,493	17,718
Deferred income tax liabilities:
Intangible assets	12,992	6,610
Property and equipment	22,465	23,492
Leases	36,666	0
Other	2,408	0
Total deferred income tax liabilities	74,531	30,102
Total net deferred income tax liabilities	$ 21,038	$ 12,384	$ 50,400