Revenue - Disaggregation of Revenue - Expected Timing Of Satisfaction Period (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Divestiture received	$ 0	$ 0
Revenue, remaining performance obligation, amount	1,800	1,800	$ 4,300
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 2,299	$ 2,299
Revenue, remaining performance obligation, expected timing of satisfaction, period	12 months	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 378	$ 378
Revenue, remaining performance obligation, expected timing of satisfaction, period	12 months	12 months