Noncovered Loans (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 contract loan	Dec. 31, 2012 contract	Dec. 31, 2011 contract
Financing Receivable, Recorded Investment [Line Items]
Loans to related parties	$ 14,200,000	$ 14,200,000
Repayments on related party loans	2,000,000
Commercial and residential real estate loans pledged as FHLB collateral	1,075,389,000	443,419,000
Federal Reserve Bank, Advances, Collateral Pledged	85,452,000	59,456,000
Loans and Leases Receivable, Impaired, Nonperforming, Nonaccrual of Interest	34,000,000	37,400,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	2,900,000	3,400,000	5,300,000
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing, Number of Loans	0
Loans and Leases Receivable, Nonaccrual of Interest, Commitments of Additional Funds	28,000	346,000
Financing Receivable Modifications Additional Commitment To Lend	0	236,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0
Loans Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial and residential real estate loans pledged as FHLB collateral	$ 1,075,389,000	$ 443,419,000