Revenue From Contracts With Customers - Transaction Price Allocated to Remaining Performance Obligations (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized on contract liability amounts as of end of period	$ 2,492
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized on contract liability amounts as of end of period	$ 1,016
Revenue, Performance Obligation [Abstract]
Revenue expected to be recognized on contract liability, satisfaction period	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized on contract liability amounts as of end of period	$ 1,476
Revenue, Performance Obligation [Abstract]
Revenue expected to be recognized on contract liability, satisfaction period	2 years