Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
ASSETS
Securities available for sale	$ 284,398	$ 329,286
RECURRING FAIR VALUE MEASUREMENTS: [Member]
ASSETS
TOTAL RECURRING FAIR VALUE MEASUREMENTS	284,064	361,208
RECURRING FAIR VALUE MEASUREMENTS: [Member] | U.S. Government Agency Securities [Member]
ASSETS
Securities available for sale	19,599	20,822
RECURRING FAIR VALUE MEASUREMENTS: [Member] | Agency Mortgage-Backed Securities [Member]
ASSETS
Securities available for sale	183,361	221,425
RECURRING FAIR VALUE MEASUREMENTS: [Member] | Agency Collateralized Mortgage Obligations [Member]
ASSETS
Securities available for sale	61,255	68,376
RECURRING FAIR VALUE MEASUREMENTS: [Member] | Private Mortgage-Backed Securities [Member]
ASSETS
Securities available for sale	2,863	3,532
RECURRING FAIR VALUE MEASUREMENTS: [Member] | Single Trust Preferred Securities [Member]
ASSETS
Securities available for sale	2,173	2,240
RECURRING FAIR VALUE MEASUREMENTS: [Member] | Pooled Trust Preferred Securities Issued by Banks and Insurers [Member]
ASSETS
Securities available for sale	3,971	2,981
RECURRING FAIR VALUE MEASUREMENTS: [Member] | Marketable Equity Securities [Member]
ASSETS
Securities available for sale	11,176	9,910
RECURRING FAIR VALUE MEASUREMENTS: [Member] | LOANS HELD FOR SALE [Member]
ASSETS
Assets, Fair Value Disclosure, Recurring	10,667	48,187
RECURRING FAIR VALUE MEASUREMENTS: [Member] | DERIVATIVE INSTRUMENTS [Member]
ASSETS
Assets, Fair Value Disclosure, Recurring	20,127	30,528
RECURRING FAIR VALUE MEASUREMENTS: [Member] | DERIVATIVE INSTRUMENTS [Member]
LIABILITIES
Liabilities, Fair Value Disclosure, Recurring	31,128	46,793
NONRECURRING FAIR VALUE MEASUREMENTS: [Member]
ASSETS
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS	22,273	19,791
NONRECURRING FAIR VALUE MEASUREMENTS: [Member] | COLLATERAL DEPENDENT IMPAIRED LOANS [Member]
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	13,085	7,817
NONRECURRING FAIR VALUE MEASUREMENTS: [Member] | OTHER REAL ESTATE OWNED [Member]
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	9,188	11,974
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member]
ASSETS
TOTAL RECURRING FAIR VALUE MEASUREMENTS	11,176	9,910
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | U.S. Government Agency Securities [Member]
ASSETS
Securities available for sale
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Agency Mortgage-Backed Securities [Member]
ASSETS
Securities available for sale
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Agency Collateralized Mortgage Obligations [Member]
ASSETS
Securities available for sale
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Private Mortgage-Backed Securities [Member]
ASSETS
Securities available for sale
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Single Trust Preferred Securities [Member]
ASSETS
Securities available for sale
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Pooled Trust Preferred Securities Issued by Banks and Insurers [Member]
ASSETS
Securities available for sale
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Marketable Equity Securities [Member]
ASSETS
Securities available for sale	11,176	9,910
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | LOANS HELD FOR SALE [Member]
ASSETS
Assets, Fair Value Disclosure, Recurring
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | DERIVATIVE INSTRUMENTS [Member]
ASSETS
Assets, Fair Value Disclosure, Recurring
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | DERIVATIVE INSTRUMENTS [Member]
LIABILITIES
Liabilities, Fair Value Disclosure, Recurring
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | NONRECURRING FAIR VALUE MEASUREMENTS: [Member]
ASSETS
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | NONRECURRING FAIR VALUE MEASUREMENTS: [Member] | COLLATERAL DEPENDENT IMPAIRED LOANS [Member]
ASSETS
Assets, Fair Value Disclosure, Nonrecurring
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | NONRECURRING FAIR VALUE MEASUREMENTS: [Member] | OTHER REAL ESTATE OWNED [Member]
ASSETS
Assets, Fair Value Disclosure, Nonrecurring
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member]
ASSETS
TOTAL RECURRING FAIR VALUE MEASUREMENTS	266,054	344,785
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | U.S. Government Agency Securities [Member]
ASSETS
Securities available for sale	19,599	20,822
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Agency Mortgage-Backed Securities [Member]
ASSETS
Securities available for sale	183,361	221,425
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Agency Collateralized Mortgage Obligations [Member]
ASSETS
Securities available for sale	61,255	68,376
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Private Mortgage-Backed Securities [Member]
ASSETS
Securities available for sale
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Single Trust Preferred Securities [Member]
ASSETS
Securities available for sale	2,173	2,240
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Pooled Trust Preferred Securities Issued by Banks and Insurers [Member]
ASSETS
Securities available for sale
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Marketable Equity Securities [Member]
ASSETS
Securities available for sale
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | LOANS HELD FOR SALE [Member]
ASSETS
Assets, Fair Value Disclosure, Recurring	10,667	48,187
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | DERIVATIVE INSTRUMENTS [Member]
ASSETS
Assets, Fair Value Disclosure, Recurring	20,127	30,528
Significant Other Observable Inputs (Level 2) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | DERIVATIVE INSTRUMENTS [Member]
LIABILITIES
Liabilities, Fair Value Disclosure, Recurring	31,128	46,793
Significant Other Observable Inputs (Level 2) [Member] | NONRECURRING FAIR VALUE MEASUREMENTS: [Member]
ASSETS
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS
Significant Other Observable Inputs (Level 2) [Member] | NONRECURRING FAIR VALUE MEASUREMENTS: [Member] | COLLATERAL DEPENDENT IMPAIRED LOANS [Member]
ASSETS
Assets, Fair Value Disclosure, Nonrecurring
Significant Other Observable Inputs (Level 2) [Member] | NONRECURRING FAIR VALUE MEASUREMENTS: [Member] | OTHER REAL ESTATE OWNED [Member]
ASSETS
Assets, Fair Value Disclosure, Nonrecurring
Significant Unobservable Inputs (Level 3) [Member] | Private Mortgage-Backed Securities [Member]
ASSETS
Assets, Fair Value Disclosure, Recurring	2,863	3,532
Significant Unobservable Inputs (Level 3) [Member] | OTHER REAL ESTATE OWNED [Member]
ASSETS
Assets, Fair Value Disclosure, Recurring	9,188	11,974
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member]
ASSETS
TOTAL RECURRING FAIR VALUE MEASUREMENTS	6,834	6,513
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | U.S. Government Agency Securities [Member]
ASSETS
Securities available for sale
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Agency Mortgage-Backed Securities [Member]
ASSETS
Securities available for sale
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Agency Collateralized Mortgage Obligations [Member]
ASSETS
Securities available for sale
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Private Mortgage-Backed Securities [Member]
ASSETS
Securities available for sale	2,863	3,532
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Single Trust Preferred Securities [Member]
ASSETS
Securities available for sale
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Pooled Trust Preferred Securities Issued by Banks and Insurers [Member]
ASSETS
Securities available for sale	3,971	2,981
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | Marketable Equity Securities [Member]
ASSETS
Securities available for sale
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | LOANS HELD FOR SALE [Member]
ASSETS
Assets, Fair Value Disclosure, Recurring
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | DERIVATIVE INSTRUMENTS [Member]
ASSETS
Assets, Fair Value Disclosure, Recurring
Significant Unobservable Inputs (Level 3) [Member] | RECURRING FAIR VALUE MEASUREMENTS: [Member] | DERIVATIVE INSTRUMENTS [Member]
LIABILITIES
Liabilities, Fair Value Disclosure, Recurring
Significant Unobservable Inputs (Level 3) [Member] | NONRECURRING FAIR VALUE MEASUREMENTS: [Member]
ASSETS
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS	22,273	19,791
Significant Unobservable Inputs (Level 3) [Member] | NONRECURRING FAIR VALUE MEASUREMENTS: [Member] | COLLATERAL DEPENDENT IMPAIRED LOANS [Member]
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	13,085	7,817
Significant Unobservable Inputs (Level 3) [Member] | NONRECURRING FAIR VALUE MEASUREMENTS: [Member] | OTHER REAL ESTATE OWNED [Member]
ASSETS
Assets, Fair Value Disclosure, Nonrecurring	$ 9,188	$ 11,974