Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2023

Commitments And Contingencies Disclosure [Abstract]

Schedule of Additional Information Related to Operating Leases

The following table contains additional information related to the Company’s operating leases:

Location	Use	Approximate Square Footage	Commencement Dates	Expiration Dates
Seattle, WA	Office/Laboratory	48,000	March 2019 to September 2020	December 2026 to April 2028
Cambridge, MA	Office/Laboratory	60,000	March 2019 to January 2022	November 2025 to February 2028
South San Francisco, CA	Office/Laboratory	100,000	December 2019 to April 2022	April 2024 to April 2030
Fremont, CA	Industrial	163,000	July 2021	November 2031
Rochester, NY	Office/Laboratory	3,000	January 2022	January 2025
Bothell, WA	Office/Laboratory/Industrial	80,000	January 2023	January 2039

Summary of Lease Costs

The following table summarizes the Company’s lease costs:

		Three Months Ended March 31,
		2023		2022
	(in thousands)
Operating lease cost		$	7,061	$	5,480
Variable lease cost			1,982		1,489
Total lease cost		$	9,043	$	6,969

Reconciliation of Undiscounted Operating Lease Cash Flows by Fiscal Year to Present Value of Operating Lease Liabilities

The following table reconciles the Company’s undiscounted operating lease cash flows by fiscal year to the present value of the operating lease liabilities as of March 31, 2023 (in thousands):

2023 (remaining 9 months)	$	17,296
2024		28,021
2025		28,109
2026		25,268
2027		22,779
2028 and thereafter		120,859
Total undiscounted lease payments		242,332
Less: imputed interest		(106,625	)
Less: tenant improvement allowances		(21,208	)
Present value of operating lease liabilities		114,499
Less: current portion of operating lease liabilities		(12,892	)
Operating lease liabilities, net of current portion	$	101,607