Consolidated Statements Of Comprehensive Income (Unaudited)-AOCI - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance			$ (15,855)	$ (26,792)
Other comprehensive income (loss)	$ (8,427)	$ 4,501	(5,377)	11,521
Ending Balance	(21,232)	(15,271)	(21,232)	(15,271)
Accumulated Unrealized Gain (Loss) on Securities Available- for-Sale
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance			(2,950)	(20,419)
Other comprehensive income (loss)			(3,843)	11,638
Ending Balance	(6,793)	(8,781)	(6,793)	(8,781)
Accumulated Unrealized Loss on Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance			(1,138)	0
Other comprehensive income (loss)			(1,534)	(117)
Ending Balance	(2,672)	(117)	(2,672)	(117)
Unrecognized Net Pension Costs
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance			(11,767)	(6,373)
Other comprehensive income (loss)			0	0
Ending Balance	$ (11,767)	$ (6,373)	$ (11,767)	$ (6,373)