Future Minimum Rents Narrative (Details) - tenants	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Future Minimum Rent [Line Items]
Number Of Tenants Above Concentration Amount.	0	0	0
Concentration Risk, Percentage	10.00%	10.00%	10.00%
Minimum [Member]
Future Minimum Rent [Line Items]
Initial Term Lease Expiration Date	2017
Maximum [Member]
Future Minimum Rent [Line Items]
Initial Term Lease Expiration Date	2046