Recent Accounting Pronouncements Recent Accounting Pronouncements (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Recent Accounting Pronouncements [Abstract]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 0		$ 0
Lessor Property Costs Paid From Tenant Escrow	1,608,000	$ 0	4,205,000	$ 0
Operating Lease, Right-of-Use Asset	$ 1,176,000		$ 1,176,000