Leases - Narrative (Details) $ in Thousands		1 Months Ended	3 Months Ended	9 Months Ended	11 Months Ended	24 Months Ended
	Mar. 16, 2022 USD ($) sqft	Dec. 31, 2022 USD ($)	Sep. 30, 2023 USD ($) sqft	Sep. 30, 2023 USD ($) sqft	Nov. 30, 2023 USD ($)	Nov. 30, 2025 USD ($)	Apr. 30, 2023 USD ($)
Lessee, Lease, Description [Line Items]
Number of square feet | sqft	65,000
Security deposit			$ 800	$ 800
Fixed monthly rental payments	$ 500
Rental expenses annual increase	3.00%
Right-of-use assets, operating leases		$ 25,340	84,017	84,017
Present value of operating lease liabilities			69,073	69,073
Term of contract	10 years
Lease term	5 years
Tenant improvements allowance	$ 19,500
Operating leases additional allowance	$ 1,600
Sublease term		3 years
Lease term extension		6 months
Fixed rental rate		$ 200
Sublease fixed rental rate, percentage increase per annum		3.00%
Letter of credit received in place of a security deposit		$ 500
Sublease income			500	1,000
IDB
Lessee, Lease, Description [Line Items]
Right-of-use assets, operating leases							$ 77,600
Present value of operating lease liabilities							$ 63,600
Other Noncurrent Assets
Lessee, Lease, Description [Line Items]
Security deposit			400	400
Other Current Assets
Lessee, Lease, Description [Line Items]
Security deposit			$ 400	$ 400
Forecast
Lessee, Lease, Description [Line Items]
Fixed rental payments					$ 700	$ 400
Massachusetts
Lessee, Lease, Description [Line Items]
Number of square feet | sqft			23,189	23,189
Massachusetts | IDB
Lessee, Lease, Description [Line Items]
Number of square feet | sqft	81,229