Employee Benefit Plans (Change In Fair Value Of Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Balance at beginning of year	$ 39,369	$ 39,826
Actual return on assets	1,904	(457)
Benefits paid	2,092	1,996
Defined Benefit Plan, Other Costs	(8,800)	0
Employer contributions	1,395	1,996
Fair value of plan assets at end of year	31,776	39,369
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Balance at beginning of year	39,369
Fair value of plan assets at end of year	31,776	39,369
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Balance at beginning of year	$ 39,370
Fair value of plan assets at end of year		$ 39,370