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FAIR VALUE (Details) (Fair Value, Measurements, Recurring, USD $) In Thousands, unless otherwise specified | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | ---
Fair Value Measurements |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | $ 3,072,578 | $ 2,875,941
Derivatives liabilities | (24,164) | (4,498)
Fair Value Measurements | Equity swap agreements |  |
Investment securities available-for-sale |  |
Derivative assets | 202 | 206
Fair Value Measurements | Foreign exchange options |  |
Investment securities available-for-sale |  |
Derivative assets | 3,899 | 5,084
Fair Value Measurements | Interest rate swaps |  |
Investment securities available-for-sale |  |
Derivative assets | 20,474 | 13
Fair Value Measurements | Short-term foreign exchange contracts |  |
Investment securities available-for-sale |  |
Short-term foreingn exchange contracts | 1,403 | 1,220
Fair Value Measurements | U.S. Treasury securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 20,725 | 20,454
Fair Value Measurements | U.S. Government agency and U.S. Government sponsored enterprise debt securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 576,578 | 1,333,465
Fair Value Measurements | U.S. Government agency and U.S. Government sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 49,315 | 19,132
Fair Value Measurements | U.S. Government agency and U.S. Government sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 993,770 | 306,714
Fair Value Measurements | Municipal securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 79,946 |
Fair Value Measurements | Other residential mortgage-backed securities: | Non-investment grade |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale |  | 6,254
Fair Value Measurements | Corporate debt securities | Investment grade |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 1,322,561 | 1,056,867
Fair Value Measurements | Corporate debt securities | Non-investment grade |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 19,615 | 38,730
Fair Value Measurements | Other securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 10,068 | 94,325
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 20,725 | 20,454
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasury securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 20,725 | 20,454
Significant Other Observable Inputs (Level 2) |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 3,049,618 | 2,846,460
Derivatives liabilities | (21,530) | (1,049)
Significant Other Observable Inputs (Level 2) | Equity swap agreements |  |
Investment securities available-for-sale |  |
Derivative assets | 202 | 206
Significant Other Observable Inputs (Level 2) | Foreign exchange options |  |
Investment securities available-for-sale |  |
Derivative assets | 3,899 | 5,084
Significant Other Observable Inputs (Level 2) | Interest rate swaps |  |
Investment securities available-for-sale |  |
Derivative assets | 20,474 | 13
Significant Other Observable Inputs (Level 2) | Short-term foreign exchange contracts |  |
Investment securities available-for-sale |  |
Short-term foreingn exchange contracts | 1,403 | 1,220
Significant Other Observable Inputs (Level 2) | U.S. Government agency and U.S. Government sponsored enterprise debt securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 576,578 | 1,333,465
Significant Other Observable Inputs (Level 2) | U.S. Government agency and U.S. Government sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 49,315 | 19,132
Significant Other Observable Inputs (Level 2) | U.S. Government agency and U.S. Government sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 993,770 | 306,714
Significant Other Observable Inputs (Level 2) | Municipal securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 79,946 |
Significant Other Observable Inputs (Level 2) | Corporate debt securities | Investment grade |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 1,322,561 | 1,056,867
Significant Other Observable Inputs (Level 2) | Corporate debt securities | Non-investment grade |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 17,380 | 35,957
Significant Other Observable Inputs (Level 2) | Other securities |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 10,068 | 94,325
Significant Unobservable Inputs (Level 3) |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | 2,235 | 9,027
Derivatives liabilities | (2,634) | (3,449)
Significant Unobservable Inputs (Level 3) | Other residential mortgage-backed securities: | Non-investment grade |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale |  | 6,254
Significant Unobservable Inputs (Level 3) | Corporate debt securities | Non-investment grade |  |
Investment securities available-for-sale |  |
Total investment securities available-for-sale | $ 2,235 | $ 2,773

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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 + Details
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