Fair Value Measurement (Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets
Cash equivalents	$ 45,000
Marketable securities	10,064	$ 5,771
Foreign currency derivatives	166	196
Foreign currency derivatives
Liabilities
Foreign currency derivatives	5,927	5,911
Level I
Assets
Cash equivalents	45,000
Marketable securities	10,064	5,771
Foreign currency derivatives	0	0
Level I | Foreign currency derivatives
Liabilities
Foreign currency derivatives	0	0
Level II
Assets
Cash equivalents	0
Marketable securities	0	0
Foreign currency derivatives	166	196
Level II | Foreign currency derivatives
Liabilities
Foreign currency derivatives	5,927	5,911
Level III
Assets
Cash equivalents	0
Marketable securities	0	0
Foreign currency derivatives	0	0
Level III | Foreign currency derivatives
Liabilities
Foreign currency derivatives	$ 0	$ 0