Income Taxes (Schedule Of Significant Components Of The Provision For Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Abstract]
Current income tax expense (benefit), Federal	$ (5,727)	$ 349	$ 239
Current income tax expense (benefit), State	(6,426)	424	391
Current income tax expense (benefit), Foreign	17,217	(2,233)	5,648
Total current income tax expense (benefit)	5,064	(1,460)	6,278
Deferred income tax expense (benefit), Federal	(119)	(3,263)	17,277
Deferred income tax expense (benefit), State	(32)	(5)	6,204
Deferred income tax expense (benefit), Foreign	1,031	(239)	(922)
Total deferred income tax expense (benefit)	880	(3,507)	22,559
Total income tax expense (benefit)	$ 5,944	$ (4,967)	$ 28,837