Leases Direct finance lease income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Direct finance lease income [Abstract]
Direct Financing Lease, Interest Income	$ 3,433	$ 10,298
Direct Financing Lease, Variable Lease Income	440	1,491
Direct Financing Lease, Lease Income	$ 3,873	$ 11,789