Securities (Securities in a Continuous Unrealized Loss Position) (Details) $ in Thousands	Sep. 30, 2015 USD ($) security	Dec. 31, 2014 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months | security	3	3
Fair value of securities in a continuous unrealized loss position for less than 12 months	$ 10,348	$ 20,952
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	$ (9)	$ (54)
Number of securities in a continuous unrealized loss position for 12 months or longer | security	10	12
Fair value of securities in a continuous unrealized loss position for 12 months or longer	$ 25,683	$ 25,973
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	$ (4,123)	$ (4,982)
Number of securities in a continuous unrealized loss position total | security	13	15
Fair value of securities in a continuous unrealized loss position total	$ 36,031	$ 46,925
Unrealized losses of securities in a continuous unrealized loss position total	$ (4,132)	$ (5,036)
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 | security	2	3
Fair value of securities in a continuous unrealized loss position for less than 12 months	$ 10,148	$ 20,952
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	$ (7)	$ (54)
Number of securities in a continuous unrealized loss position for 12 months or longer | security	0	0
Fair value of securities in a continuous unrealized loss position for 12 months or longer	$ 0	$ 0
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	$ 0	$ 0
Number of securities in a continuous unrealized loss position total | security	2	3
Fair value of securities in a continuous unrealized loss position total	$ 10,148	$ 20,952
Unrealized losses of securities in a continuous unrealized loss position total	$ (7)	$ (54)
Individual name issuer trust preferred debt securities
Schedule of Available-for-sale Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months | security	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 | security	10	11
Fair value of securities in a continuous unrealized loss position for 12 months or longer	$ 25,683	$ 25,774
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	$ (4,123)	$ (4,979)
Number of securities in a continuous unrealized loss position total | security	10	11
Fair value of securities in a continuous unrealized loss position total	$ 25,683	$ 25,774
Unrealized losses of securities in a continuous unrealized loss position total	$ (4,123)	$ (4,979)
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 | security	1	0
Fair value of securities in a continuous unrealized loss position for less than 12 months	$ 200	$ 0
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	$ (2)	$ 0
Number of securities in a continuous unrealized loss position for 12 months or longer | security	0	1
Fair value of securities in a continuous unrealized loss position for 12 months or longer	$ 0	$ 199
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	$ 0	$ (3)
Number of securities in a continuous unrealized loss position total | security	1	1
Fair value of securities in a continuous unrealized loss position total	$ 200	$ 199
Unrealized losses of securities in a continuous unrealized loss position total	$ (2)	$ (3)