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Summary of Significant Accounting Policies - Schedule of Components of Amortizable Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Amortizable intangible assets
Net carrying amount	$ 1,530,549		$ 1,400,547
Revenue reduction associated with amortization of permanent withdrawal fees	7,925	$ 5,906
Customer Relationships
Amortizable intangible assets
Finite-Lived Intangible Assets, Gross	1,690,147		1,704,105
Accumulated amortization	(436,076)		(395,278)
Net carrying amount	$ 1,254,071		1,308,827
Customer inducements
Amortizable intangible assets
Finite-Lived Intangible Asset, Useful Life	3 years
Finite-Lived Intangible Assets, Gross	$ 57,555		140,030
Accumulated amortization	(35,430)		(66,981)
Net carrying amount	22,125		73,049
Data Center Business
Amortizable intangible assets
Finite-Lived Intangible Assets, Gross	276,936		19,314
Below Market Lease, Accumulated Amortization	761		0
Below Market Lease, Net	11,577		0
Accumulated amortization	(22,583)		(643)
Net carrying amount	254,353		18,671
Below Market Lease, Gross	12,338		0
Other finite-lived intangible assets
Amortizable intangible assets
Finite-Lived Intangible Assets, Gross	20,365		20,929
Accumulated amortization	12,611		10,728
Net carrying amount	$ 7,754		$ 10,201

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