Goodwill, Core Deposit Intangibles and Other Intangible Assets (Changes in Capitalized Mortgage Servicing Rights) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finite-lived Intangible Assets [Roll Forward]
Balance at beginning of period	$ 15,653	$ 11,276
Originations	12,769	11,451	3,723
Amortization	(7,314)	(6,597)
Purchased MSR	184	0
Valuation adjustment	496	(477)	(19)
Balance at end of period	$ 21,788	$ 15,653	$ 11,276