Defined Benefit Pension Plans (Components of Net Periodic Benefit Cost) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Qualified Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	$ 538	$ 710	$ 1,614	$ 2,171
Interest Cost	723	722	2,168	2,160
Expected Return on Plan Assets	(1,016)	(931)	(3,047)	(2,780)
Amortization of Prior Service Cost	(6)	17	(17)	0
Recognized Net Actuarial Loss	115	354	345	1,182
Curtailment	0	(61)	0	(61)
Net Periodic Benefit Cost	354	811	1,063	2,672
Non-Qualified Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	11	48	34	147
Interest Cost	119	116	358	346
Expected Return on Plan Assets	0	0	0	0
Amortization of Prior Service Cost	0	0	0	0
Recognized Net Actuarial Loss	18	47	53	145
Curtailment	0	(2)	0	(2)
Net Periodic Benefit Cost	$ 148	$ 209	$ 445	$ 636