Intangibles Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 133,385	$ 64,845
Finite-Lived Intangible Assets, Accumulated Amortization	(33,551)	(20,867)
Ground Lease [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	33,270	0
Finite-Lived Intangible Assets, Accumulated Amortization	$ (600)	0
Leases, Acquired-in-Place [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Finite-Lived Intangible Assets, Gross	$ 98,235	62,981
Finite-Lived Intangible Assets, Accumulated Amortization	$ (31,796)	(20,245)
Franchise Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Finite-Lived Intangible Assets, Gross	$ 1,880	1,864
Finite-Lived Intangible Assets, Accumulated Amortization	$ (1,155)	$ (622)
Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Minimum [Member] | Ground Lease [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	8 years
Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Maximum [Member] | Ground Lease [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	57 years