Other Comprehensive Income (Loss) (Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Accumulated other comprehensive income (loss), beginning balance			$ (9,699)	$ (8,809)
Other comprehensive income (loss) before reclassifications			1,652	(1,046)
Amounts reclassed from accumulated other comprehensive income			331	772
Total other comprehensive income (loss), net of tax	$ 1,519	$ (1,258)	1,983	(274)
Accumulated other comprehensive income (loss), ending balance	(7,716)	(9,083)	(7,716)	(9,083)
Net Unrealized Gains on AFS Securities [Member]
Accumulated other comprehensive income (loss), beginning balance			1,051	4,222
Other comprehensive income (loss) before reclassifications			1,742	(1,037)
Amounts reclassed from accumulated other comprehensive income			0	0
Total other comprehensive income (loss), net of tax			1,742	(1,037)
Accumulated other comprehensive income (loss), ending balance	2,793	3,185	2,793	3,185
Net Unrealized Losses on Cash Flow Hedges [Member]
Accumulated other comprehensive income (loss), beginning balance			(43)	(287)
Other comprehensive income (loss) before reclassifications			(90)	(9)
Amounts reclassed from accumulated other comprehensive income			0	183
Total other comprehensive income (loss), net of tax			(90)	174
Accumulated other comprehensive income (loss), ending balance	(133)	(113)	(133)	(113)
Pension Benefit Adjustment [Member]
Accumulated other comprehensive income (loss), beginning balance			(10,707)	(12,744)
Other comprehensive income (loss) before reclassifications			0	0
Amounts reclassed from accumulated other comprehensive income			331	589
Total other comprehensive income (loss), net of tax			331	589
Accumulated other comprehensive income (loss), ending balance	$ (10,376)	$ (12,155)	$ (10,376)	$ (12,155)