Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Unrealized holding gains (losses) arising during period, Net of tax	$ (242)	$ 1,867	$ (3,541)	$ 5,087
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	181	1	291	1
Other Comprehensive Income (Loss) Reclassification Adjustment From AOCI Pension And Other Postretirement Benefit Plans Tax	$ 6	$ 6	$ 18	$ 18