Leases Schedule of Direct or Sales Type Finance Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Schedule of Direct or Sales Type Finance Leases [Abstract]
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received	$ 799,832	$ 808,921
Direct Financing Lease, Unguaranteed Residual Asset	8,471	7,355
Sales-type or direct financing lease, gross investment	808,303	816,276
Direct Financing Lease, Deferred Selling Profit	82,761	81,864
Capital Leases, Net Investment in Direct Financing Leases, Initial Direct Costs	4,484	4,833
Sales-type and Direct Financing Leases, Lease Receivable	$ 730,026	$ 739,245