Leases (Tables)

9 Months Ended

Sep. 30, 2022

Leases [Abstract]

Components of Operating Lease Costs

The components of operating lease costs were as follows (in thousands):

	FOR THE THREE MONTHS ENDED SEPTEMBER 30,						FOR THE NINE MONTHS ENDED SEPTEMBER 30,
	2022			2021			2022			2021
Operating lease costs	$	1,240		$	1,208		$	3,720		$	3,626
Short-term lease costs		5			8			12			21
Variable lease costs		712			638			2,026			1,897
Sublease income		(430	)		(484	)		(2,102	)		(1,188	)
	$	1,527		$	1,370		$	3,656		$	4,356

Summary of Additional Lease Information

Additional lease information is summarized in the following table (in thousands, except lease term and discount rate):

	FOR THE NINE MONTHS ENDED SEPTEMBER 30,
	2022			2021
Cash paid for amounts included in the measurement of operating    lease liabilities	$	4,700		$	4,500
Weighted-average remaining lease term - operating leases (years)		7.2			8.2
Weighted-average discount rate - operating leases		10.1	%		10.3	%

Schedule of Undiscounted Cash Flows Used in Calculating the Operating Lease Liabilities and Amounts to be Received under the Sublease

Undiscounted cash flows used in calculating the Company’s operating lease liabilities and amounts to be received under the sublease at 4 Hartwell Place as of September 30, 2022 are as follows (in thousands):

Fiscal Year	OPERATING LEASE PAYMENTS			SUBLEASE   RECEIPTS		NET OPERATING LEASE PAYMENTS
2022 (remainder of the year)	$	1,573		$	250	$	1,323
2023		6,436			1,024		5,412
2024		6,625			965		5,660
2025		6,820			—		6,820
2026		7,020			—		7,020
Thereafter		21,779			—		21,779
Total undiscounted cash flows	$	50,253		$	2,239	$	48,014
Less: Amounts representing interest		(14,669	)
Present value of lease liabilities	$	35,584