Debt (Schedule of Short-Term and Long-Term Balances of Term Loan) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 01, 2017	Jun. 30, 2015
Debt Instrument [Line Items]
Total loan balance	$ 314,779	$ 317,627
Less unamortized loan origination costs	(6,672)	(8,504)
Net borrowings	308,107	309,123
Less short-term loan balance, net	(1,608)	(1,630)
Long-term loan balance, net	306,499	307,493
2.45% Sparkasse Zollernalb (KFW Loan 1)
Debt Instrument [Line Items]
Total loan balance	$ 296	566
Interest rate on amounts borrowed	2.45%			2.45%
1.40% Sparkasse Zollernalb (KFW Loan 2)
Debt Instrument [Line Items]
Total loan balance	$ 733	1,061
Interest rate on amounts borrowed	1.40%			1.40%
Term Loan
Debt Instrument [Line Items]
Total loan balance	$ 213,750	216,000	$ 225,000
Convertible Senior Notes
Debt Instrument [Line Items]
Total loan balance	$ 100,000	$ 100,000