Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,795,532		$ 1,760,595
Less: accumulated depreciation and amortization	(486,018)		(457,825)
Property and equipment, net	1,309,514		1,302,770
Depreciation and amortization of property and equipment	28,558	$ 24,603
Capitalized interest	1,300	1,000
Cost of revenue
Property, Plant and Equipment [Line Items]
Depreciation and amortization of property and equipment	27,810	24,067
Selling, general and administrative expense
Property, Plant and Equipment [Line Items]
Depreciation and amortization of property and equipment	748	$ 536
Land and land improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	194,854		194,711
Buildings, building improvements, and leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	413,678		412,089
Substation equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	19,443		4,247
Data center equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	928,549		904,722
Vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,825		1,685
Core network equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	35,843		34,901
Cloud computing equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,192		5,192
Fiber facilities
Property, Plant and Equipment [Line Items]
Property and equipment, gross	9,977		9,912
Computer equipment, furniture, and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	36,245		34,975
Capitalized leased assets
Property, Plant and Equipment [Line Items]
Property and equipment, gross	34,341		33,730
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 115,585		$ 124,431