Convertible Senior Notes - Carrying Value of 2026 Notes (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Feb. 05, 2021
Debt Instrument [Line Items]
2026 Notes embedded conversion derivative	$ 54,334
Convertible Debt \| 2026 Notes
Debt Instrument [Line Items]
Principal amount	155,250
Less: unamortized discount and issuance costs, net of amortization	(35,625)
Carrying amount	119,625
Convertible Debt \| 2026 Notes \| Embedded conversion derivative
Debt Instrument [Line Items]
Less: unamortized discount and issuance costs, net of amortization	35,600
2026 Notes embedded conversion derivative	$ 54,334	$ 33,200

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