Lease Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Schedule of the Components of Income from Direct Finance and Operating Lease Equipment [Line Items]
Interest income on lease receivable	$ 2,097	$ 3,241	$ 4,430	$ 6,419
Income related to lease payments	5,990	7,809	12,620	15,791
Income from reimbursements for personal property tax payments on operating leased equipment	170	110	420	350
Expense for payments of personal property taxes on operating leased equipment	170	110	420	350
Leased equipment
Schedule of the Components of Income from Direct Finance and Operating Lease Equipment [Line Items]
Depreciation - leased equipment	$ 5,142	$ 6,400	$ 10,569	$ 12,924