Leases - Schedule of Lease Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating lease revenues	$ 87,125	$ 94,459	$ 262,518	$ 282,747
Direct financing lease interest income	525	539	1,572	1,558
Sales-type lease interest income	2,278	1,675	6,218	1,675
Lease revenues relating to variable lease payments not included in measurement of the sales-type lease receivable	$ 2,952	$ 3,075	$ 7,413	$ 3,075