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Convertible Senior Notes - Net Carrying Amount (Details) - Senior Notes - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Aug. 31, 2020	Apr. 30, 2019	Mar. 31, 2019
2026 Notes
Debt Instrument [Line Items]
Principal	$ 244,479	$ 500,000	$ 1,000,000
Unamortized issuance costs	(1,883)	(4,837)
2026 Notes | Carrying Amount | Fair Value, Measurements, Nonrecurring
Debt Instrument [Line Items]
Net carrying amount	242,596	495,163
2025 Notes
Debt Instrument [Line Items]
Principal	358,914	699,979		$ 100,000	$ 700,000
Unamortized issuance costs	(2,219)	(6,549)
2025 Notes | Carrying Amount | Fair Value, Measurements, Nonrecurring
Debt Instrument [Line Items]
Net carrying amount	$ 356,695	$ 693,430

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