Leases (Tables)

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Lease Costs

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Operating lease expense	$	2,999	$	3,239	$	9,066	$	8,711
Short-term lease expense	28		277		81		850
Variable lease expense	516		555		1,632		1,671
Total lease expense	$	3,543	$	4,071	$	10,779	$	11,232

Supplemental balance sheet information related to operating leases is as follows (in thousands):

	September 30, 2020		December 31, 2019
Operating lease right-of-use assets	$	34,562	$	35,479
Operating lease liabilities	$	38,249	$	39,291