Income Taxes (Schedule of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning of year	$ 20,232	$ 22,584
Increases - tax positions taken in prior period	1,487	700
Decreases - tax positions taken in prior period		(57)
Increases - tax positions taken in current period	558	1,268
Settlement and lapse of statute of limitations	(2,591)	(4,364)
Currency translation adjustment	612	101
Unrecognized tax benefits, end of year	$ 20,298	$ 20,232