Accumulated Other Comprehensive Loss (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
Increase (Decrease} In Accumulated Other Comprehensive Income (Loss), Net Of Tax1 [Roll Forward]
Beginning Balance	$ 635	$ (4,521)	$ (4,894)	$ 5,357
Other comprehensive income (loss) before reclassifications	570	(1,087)	6,679	(9,473)
Amounts reclassified from accumulated other comprehensive income (loss)	(1,416)	2	(1,996)	(1,490)
Total other comprehensive (loss) income	(846)	(1,085)	4,683	(10,963)
Ending Balance	(211)	(5,606)	(211)	(5,606)
Net Unrealized Gain (Loss) on Available for Sale Securities
Increase (Decrease} In Accumulated Other Comprehensive Income (Loss), Net Of Tax1 [Roll Forward]
Beginning Balance	3,360	286	(2,169)	10,164
Other comprehensive income (loss) before reclassifications	570	(1,087)	6,679	(9,473)
Amounts reclassified from accumulated other comprehensive income (loss)	(1,416)	2	(1,996)	(1,490)
Total other comprehensive (loss) income	(846)	(1,085)	4,683	(10,963)
Ending Balance	2,514	(799)	2,514	(799)
Defined Benefit Plan
Increase (Decrease} In Accumulated Other Comprehensive Income (Loss), Net Of Tax1 [Roll Forward]
Beginning Balance	(2,725)	(4,807)	(2,725)	(4,807)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0	0
Total other comprehensive (loss) income	0	0	0	0
Ending Balance	$ (2,725)	$ (4,807)	$ (2,725)	$ (4,807)