Employee Benefit Plans (Change In Projected Benefit Obligation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 31,776	$ 39,369	$ 39,826
Employer contributions	1,395	1,996
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Benefit Obligation	13,524	17,570
Defined Benefit Plan, Accumulated Benefit Obligation	45,300	56,939
Actual return on assets	1,904	(457)
Balance at beginning of year	56,939	58,819
Interest cost	2,185	2,193	2,181
Actuarial loss	(2,932)	(2,077)
Benefits paid	(2,092)	(1,996)
Other Nonrecurring (Income) Expense	8,196	9,720
Defined Benefit Plan, Other Costs	(8,800)	0
Balance at end of year	45,300	56,939	$ 58,819
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation	39,886	51,395
Supplemental Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation	$ 5,414	$ 5,544