INCOME TAXES - Reconciliation of Statutory Federal Income Tax Amount to Recorded Expense (Details) - USD ($) $ in Thousands	3 Months Ended								5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	May 27, 2019	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense at the federal statutory rate									$ 17,677	$ 26,679		$ 16,867		$ 8,873
Impact of nontaxable noncontrolling interest									0	(18,982)		0		0
State income tax expense, net of federal tax effect									505	372		492		317
Income tax benefit relating to change in statutory tax rate									0	0		0		(4,502)
Other, net									0	2		0		0
Total provision for income taxes	$ 3,403	$ 3,294	$ 8,724	$ 10,832	$ 4,245	$ 4,892	$ 4,089	$ 4,133	$ 18,182	$ 8,071	$ 26,253	$ 17,359	[1]	$ 4,688	[1]

[1] See Note 1 for information regarding the basis of financial statement presentation.