Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
ASSETS
Trading Securities	$ 454	$ 0
Securities - available for sale	365,792	348,554
Disposal Group, Including Discontinued Operation, Mortgage Loans	11,476	6,888
Derivative Asset, Fair Value, Gross Asset	29,867	22,390
Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS	373,747	350,180
Recurring fair value measurements \| Trading Securities [Member]
ASSETS
Trading Securities	454
Recurring fair value measurements \| U.S. Government agency securities
ASSETS
Securities - available for sale	37,587	41,486
Recurring fair value measurements \| Agency mortgage-backed securities
ASSETS
Securities - available for sale	212,921	217,678
Recurring fair value measurements \| Agency collateralized mortgage obligations
ASSETS
Securities - available for sale	52,075	63,035
Recurring fair value measurements \| Municipal Bonds [Member]
ASSETS
Securities - available for sale	4,671	5,223
Recurring fair value measurements \| Single issuer trust preferred securities issued by banks and insurers
ASSETS
Securities - available for sale	2,841	2,909
Recurring fair value measurements \| Pooled trust preferred securities issued by banks and insurers
ASSETS
Securities - available for sale	1,586	6,321
Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Securities - available for sale	41,156
Recurring fair value measurements \| Equity securities
ASSETS
Securities - available for sale	12,955	11,902
Recurring fair value measurements \| Loans held for sale
ASSETS
Disposal Group, Including Discontinued Operation, Mortgage Loans	11,476	6,888
Recurring fair value measurements \| Derivative Financial Instruments, Assets [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset	30,216	22,688
Recurring fair value measurements \| Derivative instruments
LIABILITIES
Liabilities, Fair Value Disclosure, Recurring	34,191	27,950
Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS	8,543	15,939
Nonrecurring fair value measurements \| Collateral dependent impaired loans
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	6,011	8,196
Nonrecurring fair value measurements \| Other real estate owned and other foreclosed assets
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	2,532	7,743
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS	13,409	11,902
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements \| Trading Securities [Member]
ASSETS
Trading Securities	454
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Securities - available for sale	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Recurring fair value measurements \| Equity securities
ASSETS
Securities - available for sale	12,955	11,902
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS	358,752	331,957
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| U.S. Government agency securities
ASSETS
Securities - available for sale	37,587	41,486
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Agency mortgage-backed securities
ASSETS
Securities - available for sale	212,921	217,678
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Agency collateralized mortgage obligations
ASSETS
Securities - available for sale	52,075	63,035
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Municipal Bonds [Member]
ASSETS
Securities - available for sale	4,671	5,223
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Single issuer trust preferred securities issued by banks and insurers
ASSETS
Securities - available for sale	2,841	2,909
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Securities - available for sale	41,156
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Loans held for sale
ASSETS
Securities - available for sale	11,476	6,888
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Derivative Financial Instruments, Assets [Member]
ASSETS
Derivative Asset, Fair Value, Gross Asset	30,216	22,688
Significant Other Observable Inputs (Level 2) \| Recurring fair value measurements \| Derivative instruments
LIABILITIES
Liabilities, Fair Value Disclosure, Recurring	34,191	27,950
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements
LIABILITIES
TOTAL RECURRING FAIR VALUE MEASUREMENTS	$ 1,586	$ 6,321
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| U.S. Government agency securities
ASSETS
Securities - available for sale
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| Pooled trust preferred securities issued by banks and insurers
ASSETS
Securities - available for sale	$ 1,586	$ 6,321
Significant Unobservable Inputs (Level 3) \| Recurring fair value measurements \| Small Business Administration Pooled Securities [Member]
ASSETS
Securities - available for sale	0
Significant Unobservable Inputs (Level 3) \| Nonrecurring fair value measurements
LIABILITIES
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS	8,543	15,939
Significant Unobservable Inputs (Level 3) \| Nonrecurring fair value measurements \| Collateral dependent impaired loans
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	6,011	8,196
Significant Unobservable Inputs (Level 3) \| Nonrecurring fair value measurements \| Other real estate owned and other foreclosed assets
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	$ 2,532	$ 7,743

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount, after allowance for bad debt, of mortgage loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

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