Income Taxes (Components Of Provision For Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Current, Federal	$ 44,824	$ 58,138	$ 112,414
Current, State	9,554	12,888	7,879
Current, Foreign	31,421	30,359	18,843
Deferred, Federal	(8,833)	(20,764)	(7,387)
Deferred, State	(965)	(2,901)	(584)
Deferred, Foreign	(4,713)	(10,010)	5,278
Total	$ 71,288	$ 67,710	$ 136,443