Financial Instruments With Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Variable Rate Commitments [Member]
Supply Commitment [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset	$ 87,622	$ 133,965
Interest Rate Lock Commitments [Member]
Supply Commitment [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset	17,096	31,757
Loan Origination Commitments [Member]
Supply Commitment [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset	104,718	165,722
Unused lines of Credit [Member]
Supply Commitment [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset	1,181,114	1,092,838
Commitments to Extend Credit [Member]
Supply Commitment [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset	39,245	33,685
Forward Contracts [Member]
Supply Commitment [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset	$ 28,468	$ 18,977