Property and Equipment, Net - Components of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,117,787	$ 1,760,595
Less: accumulated depreciation and amortization	(566,670)	(457,825)
Property and equipment, net	1,551,117	1,302,770
Land and land improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	223,877	194,711
Buildings, building improvements, and leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	435,214	412,089
Substation equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	19,780	4,247
Data center equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,021,056	904,722
Vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,732	1,685
Core network equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	36,572	34,901
Cloud computing equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	71	5,192
Fiber facilities
Property, Plant and Equipment [Line Items]
Property and equipment, gross	13,180	9,912
Computer equipment, furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	38,986	34,975
Finance lease ROU assets
Property, Plant and Equipment [Line Items]
Property and equipment, gross	72,569	33,730
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 254,750	$ 124,431