Debt - Exchangeable Senior Notes - Carrying value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Principal amount	$ 306,453
Exchangeable Senior Notes
Principal amount	6,453	$ 33,373
Unamortized discount		(612)
Unamortized issuance cost	(79)	(529)
Carrying value	$ 6,374	$ 32,232

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant