Revenue - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue Recognition [Abstract]
Outstanding performance obligation	$ 107,882
Amounts included in contract liability at the beginning of period	$ 26,486	$ 37,206
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation (as a precentage)	92.00%
Performance obligations expected to be satisfied, expected timing	12 months
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation (as a precentage)	5.00%
Performance obligations expected to be satisfied, expected timing	1 year