Investment Securities (Gross Unrealized Losses and Fair Value by Length of Continuous Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	$ 59,640	$ 112,803
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	324	1,616
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	8,139	9,208
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	201	263
Available-for-sale securities, continuous unrealized loss position, fair value	67,778	122,011
Available-for-sale securities, continuous unrealized loss position, unrealized losses	525	1,879
Equity [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	659	640
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	1	12
Available-for-sale securities, continuous unrealized loss position, fair value	658	640
Available-for-sale securities, continuous unrealized loss position, unrealized losses	1	12
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	18,941	11,926
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	40	58
Available-for-sale securities, continuous unrealized loss position, fair value	18,941	11,926
Available-for-sale securities, continuous unrealized loss position, unrealized losses	40	58
Mortgage-backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	40,040	100,237
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	283	1,546
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	8,139	9,208
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	201	263
Available-for-sale securities, continuous unrealized loss position, fair value	48,179	109,445
Available-for-sale securities, continuous unrealized loss position, unrealized losses	$ 484	$ 1,809