Employee Benefits (Components of Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Qualified Pension Plan [Member]
Components of Accumulated Other Comprehensive Income (Loss), before Tax [Abstract]
Net actuarial loss	$ 4,510	$ 23,144
Prior service credit	(130)	(221)
Total pre-tax amounts recognized in accumulated other comprehensive income	4,380	22,923
Non-Qualified Retirement Plans [Member]
Components of Accumulated Other Comprehensive Income (Loss), before Tax [Abstract]
Net actuarial loss	2,071	3,938
Prior service credit	(3)	(5)
Total pre-tax amounts recognized in accumulated other comprehensive income	$ 2,068	$ 3,933