Leases (Tables)

3 Months Ended

Mar. 31, 2021

Leases [Abstract]

Schedule of components of lease expenses

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

	Three months ended March 31,
	2021		2020
Finance lease cost:
Amortization of assets	$	1,013	$	1,038
Interest on lease liabilities	469		489
Operating lease expense:
Operating lease cost	2,232		2,263
Variable lease cost	270		264
Sublease income	(49)		(48)
Total lease costs	$	3,935	$	4,006

Schedule of components of lease revenue

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

	Three months ended March 31,
	2021		2020
Lease revenue:
Minimum lease revenue	$	127,706	$	107,485
Variable lease revenue (primarily recoveries from customers)	16,602		12,596
Total lease revenue	$	144,308	$	120,081