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Fair Value Measurements (Details 3) - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015
--- | --- | ---
ASSETS |  |
Held-to-maturity Securities | $ 438,656 | $ 477,507
Held to Maturity, Fair Value, Total | 451,920 | 478,749
Loans, net of allowance for loan losses(b) | 5,616,526 | 5,491,896
LIABILITIES |  |
Federal Home Loan Bank borrowings(c) | 50,833 | 102,080
Customer Repurchase Agreements and other short-term borrowings | 139,716 | 133,958
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust | 73,207 | 73,306
Subordinated Debt | 34,612 | 34,589
Time certificates of deposits(c) |  |
LIABILITIES |  |
Time certificates of deposits(c) | 644,075 | 684,830
Accrued Liabilities, Fair Value Disclosure | 646,742 | 684,370
Federal Home Loan Bank borrowings(c) |  |
LIABILITIES |  |
Federal Home Loan Bank borrowings(c) | 50,833 | 102,080
Accrued Liabilities, Fair Value Disclosure | 51,347 | 102,396
Customer repurchase agreements and other short-term borrowings(c) |  |
LIABILITIES |  |
Customer Repurchase Agreements and other short-term borrowings | 139,716 | 133,958
Accrued Liabilities, Fair Value Disclosure | 139,716 | 133,958
Wholesale repurchase agreements(c) |  |
LIABILITIES |  |
Wholesale Repurchase Agreements |  | 0
Junior subordinated debentures(d) |  |
LIABILITIES |  |
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust | 73,207 | 73,306
Accrued Liabilities, Fair Value Disclosure | 75,185 | 73,871
Subordinated debentures(c) |  |
LIABILITIES |  |
Subordinated Debt | 34,612 | 34,589
Accrued Liabilities, Fair Value Disclosure | 35,534 | 34,370
Significant Other Observable Inputs (Level 2) | Time certificates of deposits(c) |  |
LIABILITIES |  |
Accrued Liabilities, Fair Value Disclosure | 646,742 | 684,370
Significant Other Observable Inputs (Level 2) | Federal Home Loan Bank borrowings(c) |  |
LIABILITIES |  |
Accrued Liabilities, Fair Value Disclosure | 51,347 | 102,396
Significant Other Observable Inputs (Level 2) | Junior subordinated debentures(d) |  |
LIABILITIES |  |
Accrued Liabilities, Fair Value Disclosure | 75,185 | 73,871
Significant Unobservable Inputs (Level 3) | Customer repurchase agreements and other short-term borrowings(c) |  |
LIABILITIES |  |
Accrued Liabilities, Fair Value Disclosure | 139,716 | 133,958
Significant Unobservable Inputs (Level 3) | Subordinated debentures(c) |  |
LIABILITIES |  |
Accrued Liabilities, Fair Value Disclosure | 35,534 | 34,370
U.S. Treasury securities |  |
ASSETS |  |
Held-to-maturity Securities | 1,008 | 1,009
Held to Maturity, Fair Value, Total | 1,100 | 1,064
U.S. Treasury securities | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 1,100 | 1,064
Agency mortgage-backed securities |  |
ASSETS |  |
Held-to-maturity Securities | 155,468 | 167,134
Held to Maturity, Fair Value, Total | 162,442 | 170,375
Agency mortgage-backed securities | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 162,442 | 170,375
Agency collateralized mortgage obligations |  |
ASSETS |  |
Held-to-maturity Securities | 247,313 | 267,348
Held to Maturity, Fair Value, Total | 252,183 | 264,891
Agency collateralized mortgage obligations | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 252,183 | 264,891
State, county, and municipal securities |  |
ASSETS |  |
Held-to-maturity Securities |  | 225
Held to Maturity, Fair Value, Total |  | 227
State, county, and municipal securities | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total |  | 227
Single issuer trust preferred securities issued by banks |  |
ASSETS |  |
Held-to-maturity Securities | 1,500 | 1,500
Held to Maturity, Fair Value, Total | 1,546 | 1,522
Single issuer trust preferred securities issued by banks | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 1,546 | 1,522
Small Business Administration Pooled Securities [Member] |  |
ASSETS |  |
Held-to-maturity Securities | 33,367 | 35,291
Held to Maturity, Fair Value, Total | 34,649 | 35,664
Small Business Administration Pooled Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 0 | 0
Small Business Administration Pooled Securities [Member] | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 34,649 | 35,664
Small Business Administration Pooled Securities [Member] | Significant Unobservable Inputs (Level 3) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total | 0 | 0
Corporate debt securities |  |
ASSETS |  |
Held-to-maturity Securities |  | 5,000
Held to Maturity, Fair Value, Total |  | 5,006
Corporate debt securities | Significant Other Observable Inputs (Level 2) |  |
ASSETS |  |
Held to Maturity, Fair Value, Total |  | 5,006
Loans, net of allowance for loan losses(b) |  |
ASSETS |  |
Loans, net of allowance for loan losses(b) | 5,611,320 | 5,487,298
Loans Receivable, Fair Value Disclosure | 5,570,940 | 5,417,425
Loans, net of allowance for loan losses(b) | Significant Unobservable Inputs (Level 3) |  |
ASSETS |  |
Loans Receivable, Fair Value Disclosure | $ 5,570,940 | $ 5,417,425

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