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Unsecured Convertible Senior Notes - 2023 Unsecured Convertible Senior Notes (Details) $ / shares in Units, shares in Millions		1 Months Ended	12 Months Ended
	Aug. 14, 2020 USD ($) shares	Nov. 30, 2018 USD ($) $ / shares	Dec. 31, 2020 USD ($)	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Effective interest rate to determine fair value of liability component (as a percent)				9.40%
Loss on early extinguishment of debt			$ 13,374,000
Principal amount				$ 320,030,000	$ 320,030,000
Adjustments to additional paid-in capital due to repurchase of the equity component			22,073,000
Proceeds From Termination Of Capped Call Contracts			$ 7,549,000
2023 Unsecured Convertible Senior Notes
Debt Instrument [Line Items]
Principal amount		$ 210,000,000.0
Interest rate (as a percent)		6.25%
Unamortized debt issuance costs				$ 600,000
Conversion rate		0.0520183
Value used in calculation of conversion rate		$ 1,000
Conversion price | $ / shares		$ 19.22
Principal amount of debt repurchased	$ 115,000,000.0
Fair value of the liability component	$ 103,600,000
Effective interest rate to determine fair value of liability component (as a percent)	9.90%			7.00%
Amount outstanding	$ 90,200,000
Number of underlying shares | shares	6.0
Settlement loss upon termination of cap call contract	$ 800,000
Number of shares outstanding on the 2023 Capped Call | shares				4.9
Loss on early extinguishment of debt	13,400,000
Principal amount	95,000,000.0			$ 95,000,000	$ 95,000,000
Adjustments to additional paid-in capital due to repurchase of the equity component	22,000,000.0
Proceeds From Termination Of Capped Call Contracts	$ 7,500,000
2023 Unsecured Convertible Senior Notes | Minimum
Debt Instrument [Line Items]
Conversion price | $ / shares		19.22
2023 Unsecured Convertible Senior Notes | Maximum
Debt Instrument [Line Items]
Conversion price | $ / shares		$ 28.84

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