Income Taxes (Schedule Of Income Tax Reconciliation Items) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Abstract]
Expected tax provision	$ 490	$ 3,668	$ 12,005
Foreign tax rate differential	1,269	1,874	(2,160)
Change in valuation allowance	19,950	(451)	(905)
State and local tax provision	6,595	378	(560)
Prior year adjustments	85	40	(79)
Unrecognized tax benefits	257	438	(8,498)
Advance to Overseas Subsidiary			(7,620)
Impact of Tax Act		(2,265)	13,018
Non-taxable insurance proceeds			(1,871)
GILTI	103	193
Foreign Tax Credit	(81)	(846)
Other	169	269	(37)
Total income tax expense (benefit)	$ 28,837	$ 3,298	$ 3,293

Effective Income Tax Rate Reconciliation, Global Intangible Low-taxed Income

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Amount of current and deferred foreign income tax expense (benefit) attributable to income (loss) from continuing operations.

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