Leases (Tables)

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Schedule of components of lease expenses

Components of lease expense were as follows (unaudited and in thousands):

	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Finance lease cost:
Amortization of assets	$	1,015	$	1,039	$	2,028	$	2,077
Interest on lease liabilities	468		482		937		971
Operating lease expense:
Operating lease cost	2,265		2,239		4,497		4,502
Variable lease cost	286		268		556		532
Sublease income	(49)		(47)		(98)		(95)
Total lease costs	$	3,985	$	3,981	$	7,920	$	7,987

Schedule of components of lease revenue

The components of our lease revenue were as follows (unaudited and in thousands):

	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Lease revenue:
Minimum lease revenue	$	132,574	$	113,147	$	260,280	$	220,632
Variable lease revenue (primarily recoveries from customers)	18,233		12,849		34,835		25,445
Total lease revenue	$	150,807	$	125,996	$	295,115	$	246,077