Shareholders Equity (Details) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
	Jun. 11, 2021 shares	Jun. 30, 2023 USD ($) shares	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) D shares	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	May 27, 2021 $ / shares shares	Jan. 31, 2017
Shareholders' Equity
Conversion, threshold percentage of market price		95.00%		95.00%
Gain (loss) recognized for the change in liability | $		$ 17,901	$ (21,981)	$ 52,215	$ (93,733)
Proceeds from issuance of common shares, net of issuance costs | $					3,767
5.10% senior notes due September 2023
Shareholders' Equity
Interest rate (as a percent)		5.10%		5.10%		5.10%
0.75% senior exchangeable notes due January 2024
Shareholders' Equity
Interest rate (as a percent)		0.75%		0.75%		0.75%		0.75%
5.75% senior notes due February 2025
Shareholders' Equity
Interest rate (as a percent)		5.75%		5.75%		5.75%
7.25% senior notes due January 2026
Shareholders' Equity
Interest rate (as a percent)		7.25%		7.25%
Common share warrants
Shareholders' Equity
Number of warrants received per common share held							0.40
Number of warrants issued	3,200,000
Number of business day notice period | D				20
Fair value of outstanding warrants | $		$ 28,400		$ 28,400		$ 80,900
Warrants outstanding		2,500,000		2,500,000
Common share warrants | Other, net
Shareholders' Equity
Gain (loss) recognized for the change in liability | $		$ (17,900)	$ (23,800)	$ (52,200)	$ (97,000)
Common Shares
Shareholders' Equity
Aggregate number of shares issued from the exercise of warrants		1,100,000		1,100,000
Number of shares which may be purchased by each right							1
Exercise price (in dollars per share) | $ / shares							$ 166.66667