Financial Statements Details - Performance Obligations (Details) $ in Millions	Mar. 31, 2019 USD ($)
Balance Sheet Components [Abstract]
Revenue, remaining performance obligation, amount	$ 575.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligation, percentage	88.00%
Performance obligation, period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligation, percentage	12.00%
Performance obligation, period	5 years