Stockholders' Equity (Accumulated Other Comprehensive (Loss) Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive (Loss) Income
Unrealized (Loss) Gain on Securities	$ 6,892	$ 7,439	$ (2,038)
Unrealized (Loss) Gain on Securities	(16,653)	(547)	9,477
Unrealized (Loss) Gain on Securities	(9,761)	6,892	7,439
Unrecognized Net Pension and Postretirement Costs	(6,238)	(6,027)	(2,415)
Unrecognized Net Pension and Postretirement Costs	2,755	(211)	(3,612)
Unrecognized Net Pension and Postretirement Costs	(3,483)	(6,238)	(6,027)
Accumulated Other Comprehensive (Loss) Income	654	1,412	(4,453)
Accumulated Other Comprehensive (Loss) Income	(13,898)	(758)	5,865
Accumulated Other Comprehensive (Loss) Income	(13,244)	654	1,412
Realized gain on sale of securities, net of tax	(318)
Realized gain on sale of securities, net of tax	(318)
Realized loss due to settlement and curtailment, net of tax	175
Realized loss due to settlement and curtailment, net of tax	175
Current period change, net of tax	(16,335)
Current period change, net of tax	2,580
Current period change, net of tax	$ (13,755)