Leases (Additional Information) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Payment of purchase option to acquire property	$ 5,000
Finance lease obligation		$ 376	$ 5,077
Finance lease right-of-use assets		391	7,017
Germany
Lessee, Lease, Description [Line Items]
Finance lease obligation	4,200		4,500
Finance lease right-of-use assets	$ 6,100		$ 6,500
Finance lease right-of-use asset, accumulated amortization		$ 4,500