Shareholders' Equity - Common Stock Warrants (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Jun. 11, 2021 shares	Dec. 31, 2023 USD ($) D $ / shares shares	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2023	Mar. 21, 2022	May 27, 2021 shares	Jan. 31, 2017
Shareholders' Equity
Conversion, threshold percentage of market price		95.00%
Gain (loss) recognized for the change in liability | $		$ 54,948	$ (95,876)
5.10% Notes due 2023
Shareholders' Equity
Interest rate (as a percent)		5.10%	5.10%		5.10%
0.75% Exchangeable Notes due 2024
Shareholders' Equity
Interest rate (as a percent)		0.75%	0.75%			0.75%		0.75%
5.75% Notes due 2025
Shareholders' Equity
Interest rate (as a percent)		5.75%	5.75%
7.25% Notes due 2026
Shareholders' Equity
Interest rate (as a percent)		7.25%
Common share warrants
Shareholders' Equity
Number of warrants received per common share held							0.40
Number of warrants issued	3,200,000
Warrants outstanding		2,500,000
Number of business day notice period | D		20
Fair value of outstanding warrants | $		$ 25,900	$ 80,900
Gain (loss) recognized for the change in liability | $		$ 54,700	$ 99,200	$ 2,600
Common Shares
Shareholders' Equity
Aggregate number of shares issued from the exercise of warrants		1,100,000
Number of shares which may be purchased by each right		1
Exercise price (in dollars per share) | $ / shares		$ 166.66667