Income Taxes - Consolidated Income Tax Provision (Benefit) (Detail) - USD ($) $ in Thousands	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2018	Aug. 13, 2018	Dec. 31, 2019	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Current - Federal	$ (1,349)			$ (19,086)
Current - State	82	$ 13	$ (223)	136
Deferred - Federal	16,406	2,412	27,550
Deferred - State	3,805	(1,360)	476	1,006
Total	$ 18,944	$ 1,065	$ 27,803	$ (17,944)