Commitments and Contingencies - Narrative (Details) - 3 months ended Mar. 31, 2020 ft² in Thousands, £ in Millions, $ in Millions	USD ($) ft²	GBP (£) ft²
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Letters of credit outstanding	$ 10.6
Minimum
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Operating lease, term of contract	1 year	1 year
Maximum
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Operating lease, term of contract	25 years	25 years
Data center facilities and equipment
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Amount of minimum purchase commitment	$ 196.7
Data center facilities and equipment | Minimum
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Term of purchase commitment	1 year
Data center facilities and equipment | Maximum
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Term of purchase commitment	2 years
Services
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Amount of minimum purchase commitment	$ 85.2
Services | Minimum
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Term of purchase commitment	1 year
Services | Maximum
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Term of purchase commitment	2 years
London, UK
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Operating lease, area | ft²	70	70
Annual rent | £		£ 1.4
Land | London, UK
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Operating lease, term of contract	20 years	20 years