Revenue Recognition - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Performance obligation, contract term	12
Customer deposits	$ 1.5	$ 3.5
Minimum
Disaggregation of Revenue [Line Items]
Payment period	30 days
Maximum
Disaggregation of Revenue [Line Items]
Payment period	90 days