Other Comprehensive Income (Loss) (Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated other comprehensive income (loss), beginning balance			$ (9,699)	$ (8,809)
Other comprehensive income (loss) before reclassifications			1,557	(703)
Amounts reclassed from accumulated other comprehensive income			497	1,087
Total other comprehensive income (loss), net of tax	$ 71	$ 658	2,054	384
Accumulated other comprehensive income (loss), ending balance	(7,645)	(8,425)	(7,645)	(8,425)
Net Unrealized Gains on AFS Securities [Member]
Accumulated other comprehensive income (loss), beginning balance			1,051	4,222
Other comprehensive income (loss) before reclassifications			1,651	(693)
Amounts reclassed from accumulated other comprehensive income			0	0
Total other comprehensive income (loss), net of tax			1,651	(693)
Accumulated other comprehensive income (loss), ending balance	2,702	3,529	2,702	3,529
Net Unrealized Losses on Cash Flow Hedges [Member]
Accumulated other comprehensive income (loss), beginning balance			(43)	(287)
Other comprehensive income (loss) before reclassifications			(94)	(10)
Amounts reclassed from accumulated other comprehensive income			0	265
Total other comprehensive income (loss), net of tax			(94)	255
Accumulated other comprehensive income (loss), ending balance	(137)	(32)	(137)	(32)
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			497	822
Total other comprehensive income (loss), net of tax			497	822
Accumulated other comprehensive income (loss), ending balance	$ (10,210)	$ (11,922)	$ (10,210)	$ (11,922)