Leases (Tables)

6 Months Ended

Jun. 30, 2020

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,
	2020		2019		2020		2019
Finance lease cost:
Amortization of assets	$	1,039	$	1,019	$	2,077	$	1,405
Interest on lease liabilities		482		454		971		699
Operating lease expense:
Operating lease cost		2,239		2,324		4,502		4,594
Variable lease cost		268		219		532		429
Sublease income		(47)		(46)		(95)		(93)
Total lease costs	$	3,981	$	3,970	$	7,987	$	7,034

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,
	2020		2019		2020		2019
Lease revenue:
Minimum lease revenue	$	113,147	$	101,947	$	220,632	$	200,543
Variable lease revenue (primarily recoveries from customers)		12,849		13,030		25,445		23,823
Total lease revenue	$	125,996	$	114,977	$	246,077	$	224,366