Capital Stock - Warrants (Details) - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 08, 2020
Class of Warrant or Right [Line Items]
Payments for settlement of warrants	$ 220,945,000	$ 0
Common Stock Par Value | Warrant Shares
Class of Warrant or Right [Line Items]
Exercise of warrants or rights (in shares)	20,000,000
Exercise percent of common stock (as a percent)	90.00%
Payments for settlement of warrants	$ 221,000,000
Credit Agreement | Securitized debt
Class of Warrant or Right [Line Items]
Principal balance			$ 400,000,000