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Debt - Changes to the notes (Details) - USD ($)	Jun. 30, 2021	Mar. 09, 2021	Dec. 31, 2020
Line Of Credit Facility
Less: unamortized debt discount and debt issuance costs	$ (7,441,000)
Convertible senior notes, net	591,906,000		$ 0
Convertible Senior Notes Due 2026 | Senior Notes
Line Of Credit Facility
Convertible Senior Notes	600,000,000	$ 600,000,000
Less: unamortized debt discount and debt issuance costs	(8,094,000)
Convertible senior notes, net	$ 591,906,000

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