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FAIR VALUE MEASUREMENT AND FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables) | 3 Months Ended
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Mar. 31, 2015
FAIR VALUE MEASUREMENT AND FAIR VALUE OF FINANCIAL INSTRUMENTS |
Assets (Liabilities) Measured at Fair Value on a Recurring Basis |
|  | Assets (Liabilities) Measured at Fair Value on a Recurring Basis as of March 31, 2015 |
($ in thousands) |  | Fair Value Measurements March 31, 2015 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |
Available-for-sale investment securities: |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 1,172,226 |  | $ | 1,172,226 |  | $ | — |  | $ | — |
U.S. government agency and U.S. government sponsored enterprise debt securities |  | 411,966 |  | — |  | 411,966 |  | — |
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities: |  |  |  |  |  |  |  |  |
Commercial mortgage-backed securities |  | 95,235 |  | — |  | 95,235 |  | — |
Residential mortgage-backed securities |  | 727,356 |  | — |  | 727,356 |  | — |
Municipal securities |  | 191,246 |  | — |  | 191,246 |  | — |
Other residential mortgage-backed securities: |  |  |  |  |  |  |  |  |
Investment grade |  | 51,501 |  | — |  | 51,501 |  | — |
Corporate debt securities: |  |  |  |  |  |  |  |  |
Investment grade |  | 140,401 |  | — |  | 140,401 |  | — |
Non-investment grade |  | 9,501 |  | — |  | 9,501 |  | — |
Other securities |  | 41,653 |  | 32,477 |  | 9,176 |  | — |
Total available-for-sale investment securities |  | $ | 2,841,085 |  | $ | 1,204,703 |  | $ | 1,636,382 |  | $ | — |
Derivative assets: |  |  |  |  |  |  |  |  |
Foreign exchange options |  | $ | 3,683 |  | $ | — |  | $ | 3,683 |  | $ | — |
Interest rate swaps and caps |  | $ | 66,060 |  | $ | — |  | $ | 66,060 |  | $ | — |
Foreign exchange contracts |  | $ | 13,340 |  | $ | — |  | $ | 13,340 |  | $ | — |
Derivative liabilities: |  |  |  |  |  |  |  |  |
Interest rate swaps on certificates of deposits |  | $ | (6,370) |  | $ | — |  | $ | (6,370) |  | $ | — |
Interest rate swaps and caps |  | $ | (66,914) |  | $ | — |  | $ | (66,914) |  | $ | — |
Foreign exchange contracts |  | $ | (13,080) |  | $ | — |  | $ | (13,080) |  | $ | — |
Embedded derivative liabilities |  | $ | (3,412) |  | $ | — |  | $ | — |  | $ | (3,412 | )
|  | Assets (Liabilities) Measured at Fair Value on a Recurring Basis as of December 31, 2014 |
($ in thousands) |  | Fair Value Measurements December 31, 2014 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |
Available-for-sale investment securities: |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 873,435 |  | $ | 873,435 |  | $ | — |  | $ | — |
U.S. government agency and U.S. government sponsored enterprise debt securities |  | 311,024 |  | — |  | 311,024 |  | — |
U.S. government agency and U.S. government sponsored enterprise mortgage-backed securities: |  |  |  |  |  |  |  |  |
Commercial mortgage-backed securities |  | 141,420 |  | — |  | 141,420 |  | — |
Residential mortgage-backed securities |  | 791,088 |  | — |  | 791,088 |  | — |
Municipal securities |  | 250,448 |  | — |  | 250,448 |  | — |
Other residential mortgage-backed securities: |  |  |  |  |  |  |  |  |
Investment grade |  | 53,918 |  | — |  | 53,918 |  | — |
Other commercial mortgage-backed securities: |  |  |  |  |  |  |  |  |
Investment grade |  | 34,053 |  | — |  | 34,053 |  | — |
Corporate debt securities: |  |  |  |  |  |  |  |  |
Investment grade |  | 115,182 |  | — |  | 115,182 |  | — |
Non-investment grade |  | 14,681 |  | — |  | 8,153 |  | 6,528 |
Other securities |  | 41,116 |  | 32,105 |  | 9,011 |  | — |
Total available-for-sale investment securities |  | $ | 2,626,365 |  | $ | 905,540 |  | $ | 1,714,297 |  | $ | 6,528 |
Derivative assets: |  |  |  |  |  |  |  |  |
Foreign exchange options |  | $ | 6,136 |  | $ | — |  | $ | 6,136 |  | $ | — |
Interest rate swaps and caps |  | $ | 41,534 |  | $ | — |  | $ | 41,534 |  | $ | — |
Foreign exchange contracts |  | $ | 8,123 |  | $ | — |  | $ | 8,123 |  | $ | — |
Derivative liabilities: |  |  |  |  |  |  |  |  |
Interest rate swaps on certificates of deposits |  | $ | (9,922) |  | $ | — |  | $ | (9,922) |  | $ | — |
Interest rate swaps and caps |  | $ | (41,779) |  | $ | — |  | $ | (41,779) |  | $ | — |
Foreign exchange contracts |  | $ | (9,171) |  | $ | — |  | $ | (9,171) |  | $ | — |
Embedded derivative liabilities |  | $ | (3,392) |  | $ | — |  | $ | — |  | $ | (3,392 | )
Reconciliation of assets and liabilities measured at fair value using significant unobservable inputs |
|  | 2015 |  | 2014 |
($ in thousands) |  | Corporate Debt Securities: Non-Investment Grade |  | Embedded Derivatives Liabilities |  | Corporate Debt Securities: Non-Investment Grade |  | Embedded Derivatives Liabilities |
Beginning balance, January 1 |  | $ | 6,528 |  | $ | (3,392) |  | $ | 6,371 |  | $ | (3,655 | )
Total gains or (losses) for the period: |  |  |  |  |  |  |  |  |
Included in earnings (1) |  | 960 |  | (20) |  | — |  | 257 |
Included in other comprehensive income (unrealized)(2) |  | 922 |  | — |  | 434 |  | — |
Purchases, issues, sales, settlements: |  |  |  |  |  |  |  |  |
Purchases |  | — |  | — |  | — |  | — |
Issues |  | — |  | — |  | — |  | — |
Sales |  | (7,219) |  | — |  | — |  | — |
Settlements |  | (98) |  | — |  | (88) |  | — |
Transfer from investment grade to non-investment grade |  | — |  | — |  | — |  | — |
Transfers in and/or out of Level 3 |  | (1,093) |  | — |  | — |  | — |
Ending balance, March 31 |  | $ | — |  | $ | (3,412) |  | $ | 6,717 |  | $ | (3,398 | )
Changes in unrealized losses included in earnings relating to assets and liabilities held at the end of March 31 |  | $ | — |  | $ | 20 |  | $ | — |  | $ | (257 | )
| (1) |  | Realized gains or losses of corporate debt securities and embedded derivative liabilities are included in net gains on sales of investment securities and other operating expense, respectively, in the consolidated statements of income.
| (2) |  | Unrealized gains or losses on available-for-sale investment securities are reported in other comprehensive income, net of tax, in the consolidated statements of comprehensive income.
Assets Measured at Fair Value on a Nonrecurring Basis |
|  | Assets Measured at Fair Value on a Nonrecurring Basis as of March 31, 2015 |
($ in thousands) |  | Fair Value Measurements |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |
Non-PCI impaired loans: |  |  |  |  |  |  |  |  |
Commercial Real Estate (“CRE”) |  | $ | 13,648 |  | $ | — |  | $ | — |  | $ | 13,648 |
Commercial and Industrial (“C&I”) |  | 11,356 |  | — |  | — |  | 11,356 |
Residential |  | 14,306 |  | — |  | — |  | 14,306 |
Consumer |  | 107 |  | — |  | — |  | 107 |
Total non-PCI impaired loans |  | $ | 39,417 |  | $ | — |  | $ | — |  | $ | 39,417 |
OREO |  | $ | 1,676 |  | $ | — |  | $ | — |  | $ | 1,676 |
|  | Assets Measured at Fair Value on a Nonrecurring Basis as of December 31, 2014 |
($ in thousands) |  | Fair Value Measurements |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |
Non-PCI impaired loans: |  |  |  |  |  |  |  |  |
CRE |  | $ | 26,089 |  | $ | — |  | $ | — |  | $ | 26,089 |
C&I |  | 16,581 |  | — |  | — |  | 16,581 |
Residential |  | 25,034 |  | — |  | — |  | 25,034 |
Consumer |  | 107 |  | — |  | — |  | 107 |
Total non-PCI impaired loans |  | $ | 67,811 |  | $ | — |  | $ | — |  | $ | 67,811 |
OREO |  | $ | 17,521 |  | $ | — |  | $ | — |  | $ | 17,521 |
Summary of increase (decrease) in value of certain assets for which a nonrecurring fair value adjustment has been recognized |
|  | Three Months Ended March 31, |
($ in thousands) |  | 2015 |  | 2014 |
Non-PCI impaired loans: |  |  |  |  |
CRE |  | $ | 841 |  | $ | (464) |
C&I |  | (2,470) |  | (6,530) |
Residential |  | (239) |  | (365) |
Consumer |  | — |  | — |
Total non-PCI impaired loans |  | $ | (1,868) |  | $ | (7,359) |
OREO |  | $ | (277) |  | $ | (526) |
Carrying amounts and fair values of financial instruments |
|  | March 31, 2015 |
($ in thousands) |  | Carrying Amount |  | Level 1 |  | Level 2 |  | Level 3 |  | Estimated Fair Value |
Financial Assets: |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 1,886,199 |  | $ | 1,886,199 |  | $ | — |  | $ | — |  | $ | 1,886,199 |
Short-term investments |  | $ | 325,350 |  | $ | — |  | $ | 325,350 |  | $ | — |  | $ | 325,350 |
Securities purchased under resale agreements |  | $ | 1,550,000 |  | $ | — |  | $ | 1,597,101 |  | $ | — |  | $ | 1,597,101 |
Loans held for sale |  | $ | 196,111 |  | $ | — |  | $ | 196,111 |  | $ | — |  | $ | 196,111 |
Loans receivable, net |  | $ | 21,116,931 |  | $ | — |  | $ | — |  | $ | 20,905,743 |  | $ | 20,905,743 |
Investment in Federal Home Loan Bank stock |  | $ | 28,603 |  | $ | — |  | $ | 28,603 |  | $ | — |  | $ | 28,603 |
Investment in Federal Reserve Bank stock |  | $ | 54,556 |  | $ | — |  | $ | 54,556 |  | $ | — |  | $ | 54,556 |
Accrued interest receivable |  | $ | 86,186 |  | $ | — |  | $ | 86,186 |  | $ | — |  | $ | 86,186 |
Financial Liabilities: |  |  |  |  |  |  |  |  |  |  |
Customer deposit accounts: |  |  |  |  |  |  |  |  |  |  |
Demand, savings and money market deposits |  | $ | 18,786,462 |  | $ | — |  | $ | 18,786,462 |  | $ | — |  | $ | 18,786,462 |
Time deposits |  | $ | 6,376,371 |  | $ | — |  | $ | — |  | $ | 6,358,260 |  | $ | 6,358,260 |
Federal Home Loan Bank advances |  | $ | 317,777 |  | $ | — |  | $ | 334,286 |  | $ | — |  | $ | 334,286 |
Securities sold under repurchase agreements |  | $ | 695,000 |  | $ | — |  | $ | 751,270 |  | $ | — |  | $ | 751,270 |
Accrued interest payable |  | $ | 12,141 |  | $ | — |  | $ | 12,141 |  | $ | — |  | $ | 12,141 |
Long-term debt |  | $ | 220,905 |  | $ | — |  | $ | 207,906 |  | $ | — |  | $ | 207,906 |
|  | December 31, 2014 |
($ in thousands) |  | Carrying Amount |  | Level 1 |  | Level 2 |  | Level 3 |  | Estimated Fair Value |
Financial Assets: |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 1,039,885 |  | $ | 1,039,885 |  | $ | — |  | $ | — |  | $ | 1,039,885 |
Short-term investments |  | $ | 338,714 |  | $ | — |  | $ | 338,714 |  | $ | — |  | $ | 338,714 |
Securities purchased under resale agreements |  | $ | 1,225,000 |  | $ | — |  | $ | 1,191,060 |  | $ | — |  | $ | 1,191,060 |
Loans held for sale |  | $ | 45,950 |  | $ | — |  | $ | 45,950 |  | $ | — |  | $ | 45,950 |
Loans receivable, net |  | $ | 21,468,270 |  | $ | — |  | $ | — |  | $ | 20,997,379 |  | $ | 20,997,379 |
Investment in Federal Home Loan Bank stock |  | $ | 31,239 |  | $ | — |  | $ | 31,239 |  | $ | — |  | $ | 31,239 |
Investment in Federal Reserve Bank stock |  | $ | 54,451 |  | $ | — |  | $ | 54,451 |  | $ | — |  | $ | 54,451 |
Accrued interest receivable |  | $ | 88,303 |  | $ | — |  | $ | 88,303 |  | $ | — |  | $ | 88,303 |
Financial Liabilities: |  |  |  |  |  |  |  |  |  |  |
Customer deposit accounts: |  |  |  |  |  |  |  |  |  |  |
Demand, savings and money market deposits |  | $ | 17,896,035 |  | $ | — |  | $ | 17,896,035 |  | $ | — |  | $ | 17,896,035 |
Time deposits |  | $ | 6,112,739 |  | $ | — |  | $ | — |  | $ | 6,095,217 |  | $ | 6,095,217 |
Federal Home Loan Bank advances |  | $ | 317,241 |  | $ | — |  | $ | 336,302 |  | $ | — |  | $ | 336,302 |
Securities sold under repurchase agreements |  | $ | 795,000 |  | $ | — |  | $ | 870,434 |  | $ | — |  | $ | 870,434 |
Accrued interest payable |  | $ | 11,303 |  | $ | — |  | $ | 11,303 |  | $ | — |  | $ | 11,303 |
Long-term debt |  | $ | 225,848 |  | $ | — |  | $ | 205,777 |  | $ | — |  | $ | 205,777 |
Fair Value, Measurements, Recurring |
Quantitative information |
Schedule of quantitative information about significant unobservable inputs used in the valuation of assets and liabilities classified as Level 3 |
($ in thousands) |  | Fair Value Measurements (Level 3) |  | Valuation Technique(s) |  | Unobservable Input(s) |  | Range of Inputs |  | Weighted Average |
March 31, 2015 |  |  |  |  |  |  |  |  |  |  |
Embedded derivative liabilities |  | $ | (3,412 | ) | Discounted cash flow |  | Credit risk |  | 0.03% - 0.07% |  | 0.06% |
December 31, 2014 |  |  |  |  |  |  |  |  |  |  |
Available-for-sale investment securities: |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities: |  |  |  |  |  |  |  |  |  |  |
Non-investment grade |  | $ | 6,528 |  | Discounted cash flow |  | Constant prepayment rate |  | 0.00% - 1.00% |  | 0.73% |
|  |  |  |  |  | Constant default rate |  | 0.75% - 1.20% |  | 0.87% |
|  |  |  |  |  | Loss severity |  | 85.00% |  | 85.00% |
|  |  |  |  |  | Discount margin |  | 4.50% - 7.50% |  | 6.94% |
Embedded derivative liabilities |  | $ | (3,392 | ) | Discounted cash flow |  | Credit risk |  | 0.12% - 0.14% |  | 0.13% |
Fair Value, Measurements, Nonrecurring |
Quantitative information |
Schedule of quantitative information about significant unobservable inputs used in the valuation of assets and liabilities classified as Level 3 |
($ in thousands) |  | Fair Value Measurements (Level 3) |  | Valuation Technique(s) |  | Unobservable Input(s) |  | Range of Inputs |  | Weighted Average |
March 31, 2015 |  |  |  |  |  |  |  |  |  |  |
Non-PCI impaired loans |  | $ | 3,578 |  | Discounted cash flow |  | Discount rate |  | 0% - 86% |  | 58% |
|  | $ | 35,839 |  | Market comparables |  | Discount rate (1) |  | 0% - 100% |  | 7% |
OREO |  | $ | 1,676 |  | Appraisal |  | Selling cost |  | 8% |  | 8% |
December 31, 2014 |  |  |  |  |  |  |  |  |  |  |
Non-PCI impaired loans |  | $ | 11,499 |  | Discounted cash flow |  | Discount rate |  | 0% - 81% |  | 49% |
|  | $ | 56,312 |  | Market comparables |  | Discount rate (1) |  | 0% - 100% |  | 4% |
OREO |  | $ | 17,521 |  | Appraisal |  | Selling cost |  | 8% |  | 8% |
| (1) |  | Discount rate is adjusted for factors such as liquidation cost of collateral and selling costs.

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