Leases (Tables)

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Summary of components of lease expense and other lease information

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Operating lease cost	$	750	$	790	$	2,291	$	2,146
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	758	$	392	$	1,749	$	1,495
Right-of-use assets obtained in exchange for new operating lease liabilities	$	—	$	—	$	—	$	—

Summary of balance sheet components

	September 30,		December 31,
	2020		2019
Operating lease right-of-use assets	$	14,467	$	16,044
Operating lease liabilities	$	16,348	$	17,347
Weighted-average remaining lease term - operating leases		10.3		10.6
Weighted-average discount rate - operating leases		5.87%		5.88%

Summary of future minimum lease payments under non-cancellable leases

         Future minimum lease payments under non-cancellable leases as of September 30, 2020 and December 31, 2019 were as follows (in thousands):

	September 30,			December 31,
	2020			2019
2020	$	724	$	2,473
2021		2,172		2,172
2022		2,171		2,171
2023		1,885		1,885
2024		1,941		1,941
Thereafter		13,325		13,325
Total future minimum lease payments (a)	$	22,218	$	23,967
Less imputed interest	$	(5,870)	$	(6,620)
Total operating lease liability	$	16,348	$	17,347

(a) Minimum lease payments have not been reduced by minimum sublease rentals of $433 thousand due in the future under non-cancelable subleases.