Income Taxes (Schedule Of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Taxes [Abstract]
Federal - Current			$ 223	$ (984)
Foreign - Current			25,894	6,039
State - Current			7,673	275
U.S. Deferred tax benefit			11,863	581
Total income tax expense (benefit)	$ 2,094	$ 1,688	$ 45,653	$ 5,911