Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Deferred tax expense (benefit) for unrealized appreciation (depreciation) on available for sale securities	$ 12,000	$ 1,836,000	$ 824,000	$ 3,776,000
Deferred tax expense (benefit) for reclassification adjustment for available for sale securities included in net income (loss)	0	1,440,000	1,552,000	1,668,000
Deferred tax expense (benefit) for pension and postretirement prior service cost	(5,000)	(8,000)	(15,000)	(17,000)
Deferred tax expense (benefit) for reclassification adjustment for pension and postretirement net (gain) loss	$ (199,000)	$ (201,000)	$ (598,000)	$ (604,000)