Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2022

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 May 2020	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	December 2038

Summary of Lease Costs

The following table summarizes the Company’s lease costs:

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
	(in thousands)
Operating lease cost	$	6,066	$	4,167	$	11,546	$	7,065
Short-term lease cost		-		-		-		512
Variable lease cost		1,903		1,642		3,392		2,729
Total lease cost	$	7,969	$	5,809	$	14,938	$	10,306

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, as of June 30, 2022 (in thousands):

2022 (remaining 6 months)	$	10,855
2023		25,113
2024		24,326
2025		24,302
2026		21,183
2027 and thereafter		55,102
Total undiscounted lease payments		160,881
Less: imputed interest		(44,380	)
Less: tenant improvement allowances		(2,874	)
Present value of operating lease liabilities		113,627
Less: current portion of operating lease liabilities		(10,667	)
Operating lease liabilities, net of current portion	$	102,960