Stockholders' Equity (Accumulated Other Comprehensive (Loss) Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Accumulated Other Comprehensive (Loss) Income [Roll Forward]
Unrealized (Loss) Gain on Securities, beginning balance			$ 7,439
Unrealized (Loss) Gain on Securities, current period change, net of tax	(143)	2,892	(1,175)	8,136
Unrealized (Loss) Gain on Securities, ending balance	6,264		6,264
Unrecognized Net Pension and Postretirement Costs, beginning balance			(6,027)
Unrecognized Net Pension and Postretirement Costs, current period change, net of tax	(27)	(251)	(514)	(301)
Unrecognized Net Pension and Postretirement Costs, ending balance	(5,513)		(5,513)
Accumulated Comprehensive (Loss) Income, beginning balance			1,412
Accumulated Comprehensive (Loss) Income, current period change, net of tax	(116)	3,143	(661)	8,437
Accumulated Comprehensive (Loss) Income, ending balance	$ 751		$ 751