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Earnings Per Share - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Feb. 24, 2021	Dec. 31, 2020
Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	1,987,513	1,996,201	2,096,927	1,921,600
Restricted Stock Award
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	805,532	1,810,572	1,171,930	1,610,107
Common Shares Conversion Option Embedded in Convertible Notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	24,900,000		19,700,000
6.50% Exchangeable Senior Notes due 2026
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Stated interest rate	6.50%		6.50%
Debt instrument, face amount					$ 230,000,000
Convertible Notes \| 6.50% Exchangeable Senior Notes due 2026
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Stated interest rate	6.50%		6.50%		6.50%	6.50%
Debt instrument, face amount					$ 230,000,000