Federal Home Loan Bank Advances, Other Borrowings and Subordinated Notes (Summary of Pledged Securities Related to Securities Sold Under Repurchase Agreements) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Financial Instruments Owned and Pledged as Collateral [Line Items]
Excess pledged collateral	$ 10,921
Securities sold under agreements to repurchase	33,173
Securities Sold under Agreements to Repurchase
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	44,100
Securities sold under agreements to repurchase	33,200	$ 58,900	$ 57,600
Maturity Overnight | Securities Sold under Agreements to Repurchase
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	44,094
Available-for-sale securities | Maturity Overnight | Corporate notes, Financial issuers
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	3,945
Available-for-sale securities | Maturity Overnight | Mortgage-backed securities
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	19,853
Held-to-maturity securities | Maturity Overnight | U.S. Government agencies
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged financial instruments, Not separately reported, Securities for repurchase agreements	$ 20,296