Revenue Recognition - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) revenueStream	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) segment revenueStream	Jun. 30, 2020 USD ($)
Revenue from Contract with Customer [Abstract]
Number of revenue streams | revenueStream	2		2
Number of operating segments | segment			2
Disaggregation of Revenue [Line Items]
Revenue	$ 106,540	$ 72,146	$ 210,096	$ 163,181
Operating lease revenue	$ 700		$ 1,400
Service Revenue
Disaggregation of Revenue [Line Items]
Revenue		$ 7,600		$ 17,300