Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	$ (3,317)	$ 410	$ (5,188)	$ 1,240
Amounts recognized in other comprehensive income, net of taxes	1,381	(3,001)	3,252	(3,714)
Reclassified amounts out of accumulated other comprehensive income, net of tax of $2.0	(3)	0	(3)	117
Balance at the end of the period	(1,933)	(2,591)	(1,933)	(2,591)
Other Comprehensive Income (Loss), before Reclassifications, Tax	715	1,545	1,680	1,913
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax	2	60	2	60
Unrealized securities gains and losses
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	(2,021)	2,465	(3,892)	3,295
Amounts recognized in other comprehensive income, net of taxes	1,381	(3,001)	3,252	(3,714)
Reclassified amounts out of accumulated other comprehensive income, net of tax of $2.0	(3)	0	(3)	117
Balance at the end of the period	(637)	(536)	(637)	(536)
Pension and post- retirement costs
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	(1,296)	(2,055)	(1,296)	(2,055)
Amounts recognized in other comprehensive income, net of taxes	0	0	0	0
Reclassified amounts out of accumulated other comprehensive income, net of tax of $2.0	0	0	0	0
Balance at the end of the period	$ (1,296)	$ (2,055)	$ (1,296)	$ (2,055)