Commitments and Contingencies (Warranty activity) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Letters of Credit Outstanding, Amount	$ 1,500		$ 1,700
Movement in Standard Product Warranty Accrual [Roll Forward]
Standard Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties	295	$ 39
Accrued Expenses
Movement in Standard Product Warranty Accrual [Roll Forward]
Warranty accrual, beginning of period	9,378	6,407
Warranties issued	1,814	1,100
Settlements	(874)	(685)
Warranty accrual, end of period	$ 10,613	$ 6,861