Leases - Narrative (Details)	1 Months Ended
	Nov. 30, 2021 USD ($) contract	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Lessee Lease Description [Line Items]
Right-of-use assets		$ 73,122,000	$ 31,945,000
Liabilities under lease		75,195,000
Watertown Lease
Lessee Lease Description [Line Items]
Tenant improvements	$ 2,600,000	0
Lease extension period	5 years
Restricted cash		$ 3,300,000
Right-of-use assets	$ 44,400,000
Liabilities under lease	$ 44,100,000
Watertown Lease | Newly leased space
Lessee Lease Description [Line Items]
Lease term	10 years
Number of amended lease contracts | contract	2