Emergence from Voluntary Reorganization under Chapter 11 (Details) - USD ($) $ in Thousands	4 Months Ended	5 Months Ended	9 Months Ended
	Dec. 31, 2020	Aug. 31, 2020	Dec. 31, 2021
Reorganization items, net:
Gain on settlement of liabilities subject to compromise		$ 462,304
Professional fees		(30,526)
United States trustee fees		(970)
Write-off of unamortized debt issuance costs and discount		(5,303)
Issuance of exit facility shares and DIP financing fees		(208,538)
Other debt restructuring costs		(19,442)
Fresh start reporting adjustments		(91,541)
Reorganization items, net	$ 0	$ 105,984	$ 0