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Fair Value of Financial Instruments (Details 2) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt instrument
Carrying value	$ 49,248	$ 163,687
1.375% Convertible senior notes due 2023 | Convertible senior notes
Debt instrument
Face value	49,354	172,500
Carrying value	49,248	163,687
Fair value	$ 71,625	$ 254,103

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