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FAIR VALUE MEASUREMENTS (Details 3) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Assets, Fair Value Disclosure [Abstract] |  |
Held-to-maturity Securities | $ 487,076 | $ 477,507
Loans and Leases Receivable, Net Amount | 5,938,039 | 5,491,896
Securities held to maturity, fair value | 485,650 | 478,749
Federal Home Loan Bank Stock | 11,497 | 14,431
Bank Owned Life Insurance | 144,503 | 134,627
Liabilities, Fair Value Disclosure [Abstract] |  |
Advances from Federal Home Loan Banks | 50,819 | 102,080
Customer Repurchase Agreements and other short-term borrowings | 176,913 | 133,958
Junior subordinated debentures | 73,107 | 73,306
Subordinated Debt | 34,635 | 34,589
Deposits [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Financial Liabilities Book Value | 5,763,101 | 5,305,873
Accrued Liabilities, Fair Value Disclosure | 5,763,101 | 5,305,873
Bank Time Deposits [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Financial Liabilities Book Value | 649,152 | 684,830
Accrued Liabilities, Fair Value Disclosure | 647,038 | 684,370
Federal Home Loan Bank Advances [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Advances from Federal Home Loan Banks | 50,819 | 102,080
Federal Home Loan Bank Borrowings, Fair Value Disclosure | 50,898 | 102,396
Customer Repurchase Agreements [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Customer Repurchase Agreements and other short-term borrowings | 176,913 | 133,958
Accrued Liabilities, Fair Value Disclosure | 176,913 | 133,958
Junior Subordinated Debt [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Junior subordinated debentures | 73,107 | 73,306
Accrued Liabilities, Fair Value Disclosure | 72,510 | 73,871
Subordinated Debt [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Subordinated Debt | 34,635 | 34,589
Accrued Liabilities, Fair Value Disclosure | 34,241 | 34,370
Significant Other Observable Inputs (Level 2) [Member] | Deposits [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Accrued Liabilities, Fair Value Disclosure | 5,763,101 | 5,305,873
Significant Other Observable Inputs (Level 2) [Member] | Bank Time Deposits [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Accrued Liabilities, Fair Value Disclosure | 647,038 | 684,370
Significant Other Observable Inputs (Level 2) [Member] | Federal Home Loan Bank Advances [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Federal Home Loan Bank Borrowings, Fair Value Disclosure | 50,898 |
Accrued Liabilities, Fair Value Disclosure |  | 102,396
Significant Other Observable Inputs (Level 2) [Member] | Junior Subordinated Debt [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Accrued Liabilities, Fair Value Disclosure | 72,510 | 73,871
Significant Unobservable Inputs (Level 3) [Member] | Customer Repurchase Agreements [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Accrued Liabilities, Fair Value Disclosure | 176,913 | 133,958
Significant Unobservable Inputs (Level 3) [Member] | Subordinated Debt [Member] |  |
Liabilities, Fair Value Disclosure [Abstract] |  |
Accrued Liabilities, Fair Value Disclosure | 34,241 | 34,370
US Treasury Securities [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Held-to-maturity Securities | 1,007 | 1,009
Securities held to maturity, fair value | 1,054 | 1,064
US Treasury Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Securities held to maturity, fair value | 1,054 | 1,064
Agency mortgage-backed securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
Held-to-maturity Securities | 156,088 | 167,134
Securities held to maturity, fair value | 157,504 | 170,375
Agency mortgage-backed securities | Significant Other Observable Inputs (Level 2) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Securities held to maturity, fair value | 157,504 | 170,375
Agency collateralized mortgage obligations |  |
Assets, Fair Value Disclosure [Abstract] |  |
Held-to-maturity Securities | 297,445 | 267,348
Securities held to maturity, fair value | 294,650 | 264,891
Agency collateralized mortgage obligations | Significant Other Observable Inputs (Level 2) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Securities held to maturity, fair value | 294,650 | 264,891
State, county, and municipal securities |  |
Assets, Fair Value Disclosure [Abstract] |  |
Held-to-maturity Securities |  | 225
Securities held to maturity, fair value |  | 227
State, county, and municipal securities | Significant Other Observable Inputs (Level 2) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Securities held to maturity, fair value | 0 | 227
Single issuer trust preferred securities issued by banks and insurers |  |
Assets, Fair Value Disclosure [Abstract] |  |
Held-to-maturity Securities | 1,500 | 1,500
Securities held to maturity, fair value | 1,544 | 1,522
Single issuer trust preferred securities issued by banks and insurers | Significant Other Observable Inputs (Level 2) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Securities held to maturity, fair value | 1,544 | 1,522
Small Business Administration Pooled Securities [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Held-to-maturity Securities | 31,036 | 35,291
Securities held to maturity, fair value | 30,898 | 35,664
Small Business Administration Pooled Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Securities held to maturity, fair value | 0 | 0
Small Business Administration Pooled Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Securities held to maturity, fair value | 30,898 | 35,664
Small Business Administration Pooled Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Securities held to maturity, fair value | 0 | 0
Corporate Debt Securities [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Held-to-maturity Securities |  | 5,000
Securities held to maturity, fair value |  | 5,006
Corporate Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Securities held to maturity, fair value |  | 5,006
Loans Net Of Allowance For Loan Loses [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Loans and Leases Receivable, Net Amount | 5,904,065 | 5,487,298
Loans, net of allowance for loan losses | 5,784,778 | 5,417,425
Loans Net Of Allowance For Loan Loses [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Loans, net of allowance for loan losses | 5,784,778 | 5,417,425
Investment in Federal Home Loan Bank Stock [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Federal Home Loan Bank Stock | 11,497 | 14,431
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure | 11,497 | 14,431
Investment in Federal Home Loan Bank Stock [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure | 0 | 0
Investment in Federal Home Loan Bank Stock [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure | 11,497 | 14,431
Investment in Federal Home Loan Bank Stock [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure | 0 | 0
Cash Surrender Value [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Bank Owned Life Insurance | 144,503 | 134,627
Cash Surrender Value, Fair Value Disclosure | 144,503 | 134,627
Cash Surrender Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash Surrender Value, Fair Value Disclosure | 0 | 0
Cash Surrender Value [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash Surrender Value, Fair Value Disclosure | 144,503 | 134,627
Cash Surrender Value [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Assets, Fair Value Disclosure [Abstract] |  |
Cash Surrender Value, Fair Value Disclosure | $ 0 | $ 0

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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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- Definition The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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