Securities (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014 security security_type	Mar. 31, 2013 security
Investment Securities [Line Items]
Number of securities sold	1	11
Proceeds from sale of securities	$ 614,000	$ 60,900,000
Proceeds from sale of available-for-sale securities	0	47,292,000
Net security gains realized	11,000	30,000
Number of securities, type	2
Securities pledged to secure public deposits and other	681,700,000
Held-to-maturity Securities [Member]
Investment Securities [Line Items]
Number of securities sold		5
Mortgage Backed Securities, Other [Member]
Investment Securities [Line Items]
Number of securities, type	10
Collateralized mortgage obligations [Member]
Investment Securities [Line Items]
Number of securities, type	35
Government Agency Debentures [Member]
Investment Securities [Line Items]
Number of securities, type	11
Bonds [Member] | Held-to-maturity Securities [Member]
Investment Securities [Line Items]
Number of securities sold		1
Agency Debentures [Member]
Investment Securities [Line Items]
Investment securities, value called by issuing agency		$ 50,000,000
Number of securities called	0
Amortizing Securities, Returned At Least 85% of Principal [Member] | Held-to-maturity Securities [Member]
Investment Securities [Line Items]
Number of securities sold		4
Investment securities, return on principal, percentage (at least)	85.00%	85.00%
Municipal Bonds [Member]
Investment Securities [Line Items]
Number of securities, type	21