Accumulated Other Comprehensive Loss (Reclassifications out of AOCI) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification adjustment for losses included in income before income taxes	$ 1,599		$ 4,304
Amounts reclassified from accumulated other comprehensive income, net of tax	977	[1]	2,619	[1]
Unrealized Loss on Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts reclassified from accumulated other comprehensive income, net of tax	0	[2]	0	[2]
Unrealized Gains on Investment Securities Available for Sale
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts reclassified from accumulated other comprehensive income, net of tax	0	[2]	0	[2]
Defined Benefit Pension Items
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Employee Benefits, prior service costs	(53)	[1]	(53)	[1]
Reclassification adjustment for losses included in income before income taxes	(1,546)	[1]	(4,251)	[1]
Total before taxes	(1,599)		(4,304)	[1]
Income taxes	622	[1]	1,685	[1]
Amounts reclassified from accumulated other comprehensive income, net of tax	$ 977	[1],[2]	$ 2,619	[1],[2]

[1] Amounts in parentheses indicate debits to profit/loss.

[2] All amounts are net of tax. Amounts in parentheses indicate debits.