SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS - Deferred Tax Asset Valuation Allowance (Details) - Deferred Tax Asset Valuation Allowance - USD ($) $ in Thousands	4 Months Ended	12 Months Ended
	May 01, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Movement in Valuation Allowances and Reserves
Balance at Beginning of Period	$ 693,541	$ 693,541	$ 678,118	$ 853,885
Charges to Costs, Expenses and other	714,520	1,870	11,277	160,572
Reversal	(316,374)	(734)	0	0
Impact of fresh start accounting	(343,662)	0	0	0
Adjustments	(28,539)	0	4,146	(336,339)
Balance at End of Period	$ 719,486	$ 720,622	$ 693,541	$ 678,118