Leases (Narrative) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Option to extend, operating lease (up to)	15 years
Net investment in direct financing and sales-type lease	$ 147,198
Carrying amount of guaranteed residual value	$ 31,400
Minimum
Lessee, Lease, Description [Line Items]
Operating lease expiration date	2019
Finance lease expiration date	2021
Direct financing and sales-type lease expiration date	2020
Maximum
Lessee, Lease, Description [Line Items]
Operating lease expiration date	2030
Finance lease expiration date	2047
Direct financing and sales-type lease expiration date	2027