SCHEDULE II - CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS (Details) - Parent Company - USD ($) $ in Thousands	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2015	Jul. 31, 2015	Dec. 31, 2017	Dec. 31, 2016
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 0		$ 1,242	$ 190
Charged to expense	190		1,395	1,159
Deductions	0		(1,087)	(107)
Balance at end of period	190	$ 0	$ 1,550	$ 1,242
Predecessor
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 1,076	1,678
Charged to expense		(602)
Deductions		0
Balance at end of period		$ 1,076