Securities (Securities in a Continuous Unrealized Loss Position) (Details) $ in Thousands	Dec. 31, 2015 USD ($) security	Dec. 31, 2014 USD ($) security
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months | security	16	3
Fair value of securities in a continuous unrealized loss position for less than 12 months	$ 97,766	$ 20,952
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	$ (858)	$ (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	$ 25,138	$ 25,973
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	$ (4,677)	$ (4,982)
Number of securities in a continuous unrealized loss position total | security	26	15
Fair value of securities in a continuous unrealized loss position total	$ 122,904	$ 46,925
Unrealized losses of securities in a continuous unrealized loss position total	$ (5,535)	$ (5,036)
Obligations of U.S. government-sponsored enterprises [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months | security	4	3
Fair value of securities in a continuous unrealized loss position for less than 12 months	$ 34,767	$ 20,952
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	$ (388)	$ (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	4	3
Fair value of securities in a continuous unrealized loss position total	$ 34,767	$ 20,952
Unrealized losses of securities in a continuous unrealized loss position total	$ (388)	$ (54)
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months | security	9
Fair value of securities in a continuous unrealized loss position for less than 12 months	$ 61,764
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	$ (450)
Number of securities in a continuous unrealized loss position for 12 months or longer | security	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 | security	9
Fair value of securities in a continuous unrealized loss position total	$ 61,764
Unrealized losses of securities in a continuous unrealized loss position total	$ (450)
Individual name issuer trust preferred debt securities [Member]
Schedule of Available for Sale and Held to Maturity 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	$ 25,138	$ 25,774
Unrealized losses of securities in a continuous unrealized loss position for 12 months or longer	$ (4,677)	$ (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	$ 25,138	$ 25,774
Unrealized losses of securities in a continuous unrealized loss position total	$ (4,677)	$ (4,979)
Corporate bonds [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Number of securities in a continuous unrealized loss position for less than 12 months | security	3	0
Fair value of securities in a continuous unrealized loss position for less than 12 months	$ 1,235	$ 0
Unrealized losses of securities in a continuous unrealized loss position for less than 12 months	$ (20)	$ 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	3	1
Fair value of securities in a continuous unrealized loss position total	$ 1,235	$ 199
Unrealized losses of securities in a continuous unrealized loss position total	$ (20)	$ (3)