Accounts Receivable (Schedule of Changes in Allowance for Credit Losses for Accounts Receivable) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Noncurrent receivables expected credit losses, beginning balance	$ (274)	$ 0
(Charge)/ benefit	72	(71)
Currency translation	2	3
Other	0	0
Noncurrent receivables expected credit losses, ending balance	$ (200)	(274)
Cumulative Effect, Period of Adoption, Adjustment
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Noncurrent receivables expected credit losses, beginning balance		$ (206)