Securities (Securities in a Continuous Unrealized Loss Position) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014 security	Dec. 31, 2013 security
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months	0	10
Fair value of securities in a continuous unrealized loss position for less than 12 months	$ 0	$ 87,064
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	0	(550)
Number of securities in a continuous unrealized loss position for 12 months or longer	13	11
Fair value of securities in a continuous unrealized loss position for 12 months or longer	27,771	24,684
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	(4,113)	(6,031)
Number of securities in a continuous unrealized loss position total	13	21
Fair value of securities in a continuous unrealized loss position total	27,771	111,748
Unrealized losses of securities in a continuous unrealized loss position total	(4,113)	(6,581)
Obligations of U.S. government-sponsored enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months		1
Fair value of securities in a continuous unrealized loss position for less than 12 months		9,909
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months		(79)
Number of securities in a continuous unrealized loss position for 12 months or longer		0
Fair value of securities in a continuous unrealized loss position for 12 months or longer		0
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer		0
Number of securities in a continuous unrealized loss position total		1
Fair value of securities in a continuous unrealized loss position total		9,909
Unrealized losses of securities in a continuous unrealized loss position total		(79)
Mortgage-backed securities issued by US Government-sponsored enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months	0	7
Fair value of securities in a continuous unrealized loss position for less than 12 months	0	76,748
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	0	(455)
Number of securities in a continuous unrealized loss position for 12 months or longer	1	0
Fair value of securities in a continuous unrealized loss position for 12 months or longer	935	0
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	(13)	0
Number of securities in a continuous unrealized loss position total	1	7
Fair value of securities in a continuous unrealized loss position total	935	76,748
Unrealized losses of securities in a continuous unrealized loss position total	(13)	(455)
Trust preferred securities: Individual name issuers [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months	0	0
Fair value of securities in a continuous unrealized loss position for less than 12 months	0	0
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	0	0
Number of securities in a continuous unrealized loss position for 12 months or longer	11	11
Fair value of securities in a continuous unrealized loss position for 12 months or longer	26,635	24,684
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	(4,099)	(6,031)
Number of securities in a continuous unrealized loss position total	11	11
Fair value of securities in a continuous unrealized loss position total	26,635	24,684
Unrealized losses of securities in a continuous unrealized loss position total	(4,099)	(6,031)
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months	0	2
Fair value of securities in a continuous unrealized loss position for less than 12 months	0	407
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	0	(16)
Number of securities in a continuous unrealized loss position for 12 months or longer	1	0
Fair value of securities in a continuous unrealized loss position for 12 months or longer	201	0
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	(1)	0
Number of securities in a continuous unrealized loss position total	1	2
Fair value of securities in a continuous unrealized loss position total	201	407
Unrealized losses of securities in a continuous unrealized loss position total	$ (1)	$ (16)