Revenue Recognition (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 45,896	$ 35,355	$ 91,001	$ 72,999
Goods transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenues	20,117	20,976	41,495	41,260
Services transferred over time
Disaggregation of Revenue [Line Items]
Revenues	$ 25,779	$ 14,379	$ 49,506	$ 31,739