Income Taxes (Components Of Income Tax Expense Recorded Directly To Stockholders Equity) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Unrealized gain (loss) on securities available for sale	$ (18,634)	$ 2,104	$ (13,952)
Components of income Tax Recorded Directly to Equity, Change in Fair Value of Cash Flow Hedge	2,286	0	0
Accumulated pension (benefit) loss	222	(184)	778
Compensation expense for tax purposes in excess of amounts recognized for financial reporting purposes	0	0	(3,390)
Income tax expense (benefit) allocated to stockholders’ equity	$ (16,126)	$ 1,920	$ (16,564)