Goodwill and Intangible Assets and Liabilities - Schedule of Carrying Value of the Intangible Assets (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Dec. 31, 2016
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Total intangible assets, Cost		$ 246,471	$ 190,642
Less: Accumulated amortization		(32,410)	(30,058)
Total intangible assets, net		214,061	160,584
Trade Names
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Indefinite life intangible assets, Cost		2,000	2,000
Customer Lists
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Finite life intangible assets, Cost		188,469	188,642
Finite life intangible assets, Accumulated Amortization		(32,071)	$ (30,058)
Tenant Contracts
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Finite life intangible assets, Cost		39,992
Finite life intangible assets, Accumulated Amortization		(242)
Network
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Finite life intangible assets, Cost	[1]	14,483
Finite life intangible assets, Accumulated Amortization	[1]	(88)
Acquired Below-market Leases
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Finite life intangible assets, Cost		1,527
Finite life intangible assets, Accumulated Amortization		(9)
Acquire Above-market Leases
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Finite life intangible assets, Cost		3,591
Less: Accumulated amortization		(27)
Total intangible liabilities, net	[2]	$ 3,564

[1] Reflects the potential to lease additional tower capacity on the existing towers due to their geographical location and capacity that currently exists on these towers as of the valuation date.

[2] Recorded in accounts payable, accrued expenses and other liabilities on the Condensed Consolidated Balance Sheet.