Chapter 11 Emergence - Schedule of Components of Reorganization Items, Net (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		8 Months Ended	9 Months Ended
	Feb. 05, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Professional fees	$ (28,739)
Adjustments for estimated allowed litigation claims	77,300
Write-off of unrecognized share-based compensation	(4,406)
Gain on settlement of liabilities subject to compromise	2,556,147
Loss on fresh start adjustments	(2,348,251)
Reorganization items, net	252,051	$ 0	$ (9,014)	$ 0	$ (9,014)
Payments related to professional fees	44,200
Finco
Debt Instrument [Line Items]
Professional fees	(8,095)
Adjustments for estimated allowed litigation claims	0
Write-off of unrecognized share-based compensation	(4,406)
Gain on settlement of liabilities subject to compromise	2,556,147
Loss on fresh start adjustments	(2,348,251)
Reorganization items, net	195,395	$ 0	$ (49,974)	$ 0	$ (49,974)
Payments related to professional fees	$ 7,200