Leases - Additional Information (Detail) $ in Thousands |
1 Months Ended | 9 Months Ended | |
---|---|---|---|
Mar. 31, 2021
USD ($)
USD_per_sqft
|
Sep. 30, 2021
USD ($)
ft²
USD_per_sqft
|
Dec. 31, 2020
USD ($)
|
|
Lessee Lease Description [Line Items] | |||
Operating lease right-of-use assets | $ 81,788 | $ 39,114 | |
Albany Lease [Member] | |||
Lessee Lease Description [Line Items] | |||
Area of space leased | ft² | 39,000 | ||
Operating lease, description | In March 2020, the Company entered into an agreement to lease approximately 39,000 square feet of office and laboratory space at 281 Albany Street in Cambridge, Massachusetts under an operating lease agreement (the “281 Albany Lease”). The Company’s obligation to pay rent will start on the date that is six months after the commencement date or the date on which the Company occupies the premises, whichever occurs earlier (the “Rent Commencement Date”). | ||
Term of lease | 10 years | ||
Base rent per square foot for first year | USD_per_sqft | 99.00 | ||
Base rent per square foot for last year | USD_per_sqft | 128.87 | ||
Operating lease right-of-use assets | $ 40,400 | ||
Operating lease, liability | $ 34,800 | ||
Incremental borrowing rate | 5.52% | ||
Prepaid lease payments | $ 5,600 | ||
Amount receivable on cost of construction and tenant improvement | 4,400 | ||
Operating lease, existence of option to extend | true | ||
Operating lease, options to extend | The Company has the option to extend the 281 Albany Lease for two successive five-year terms. | ||
Albany Lease [Member] | Other Assets [Member] | |||
Lessee Lease Description [Line Items] | |||
Letter of credit | $ 1,900 | ||
Tudor Lease [Member] | |||
Lessee Lease Description [Line Items] | |||
Area of space leased | ft² | 13,662 | ||
Operating lease, description | In July 2021, the Company entered into an agreement to lease 13,662 square feet of office space at 17 Tudor Street in Cambridge, Massachusetts under an operating lease agreement (the “17 Tudor Lease”). The Company’s obligation to pay rent will start on November 1, 2021. | ||
Term of lease | 5 years | ||
Base rent per square foot for first year | USD_per_sqft | 74.00 | ||
Base rent per square foot for last year | USD_per_sqft | 83.29 | ||
Operating lease right-of-use assets | $ 4,900 | ||
Operating lease, liability | $ 4,900 | ||
Incremental borrowing rate | 4.15% | ||
Operating lease, options to extend | The initial term of the 17 Tudor Lease is five years and the Company has an option to extend the 17 Tudor Lease for one three-year term | ||
Tudor Lease [Member] | Other Assets [Member] | |||
Lessee Lease Description [Line Items] | |||
Letter of credit | $ 200 | ||
Waltham Lease [Member] | |||
Lessee Lease Description [Line Items] | |||
Operating lease right-of-use assets | $ 2,500 |