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INVESTMENT SECURITIES (Details 4) (USD $) |  |  |  | 3 Months Ended |  |  |  |  | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2012 item | Dec. 31, 2011 | Jun. 30, 2012 US Government Agencies and Government Sponsored Enterprise Debt Securities item | Jun. 30, 2012 Residential mortgage-backed securities item | Jun. 30, 2012 Corporate debt securities | Jun. 30, 2012 Corporate debt securities Investment grade item | Dec. 31, 2011 Corporate debt securities Investment grade | Jun. 30, 2012 Corporate debt securities Non-investment grade | Dec. 31, 2011 Corporate debt securities Non-investment grade | Jun. 30, 2012 Trust Preferred Securities item | Jun. 30, 2012 U.S. Treasury securities item | Dec. 31, 2011 U.S. Treasury securities | Jun. 30, 2012 Municipal securities item | Dec. 31, 2011 Municipal securities
Schedule of Available-for-sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of available for sale securities | $ 1,873,739,000 | $ 3,072,578,000 |  |  |  | $ 426,055,000 | $ 1,322,561,000 | $ 14,919,000 | [1] | $ 19,615,000 | [1] |  | $ 72,188,000 | $ 20,725,000 | $ 65,782,000 | $ 79,946,000
Continuous unrealized loss position 12 months or more, fair value | 328,479,000 | 359,776,000 |  |  |  | 318,122,000 | 350,181,000 | 10,357,000 |  | 9,595,000 |  | 10,400,000 |  |  |  |
Total investment securities available-for-sale portfolio (as a percent) |  |  |  |  |  | 23.00% |  |  |  |  |  | 1.00% |  |  |  |
Number of securities in a continuous unrealized loss position for more than twelve months | 20 |  |  |  |  | 15 |  |  |  |  |  | 5 |  |  |  |
Number of individual securities with a continuous unrealized loss position less than 12 months | 34 |  | 6 | 18 |  | 6 |  |  |  |  |  |  | 3 |  | 1 |
Percentage of total amortized cost basis of these securities |  |  |  |  |  |  |  | 49.00% |  |  |  |  |  |  |  |
Gross Unrealized Losses | (57,743,000) | (107,746,000) |  |  |  | (47,377,000) | (95,610,000) | (9,778,000) | [1] | (11,078,000) | [1] |  | (25,000) |  | (30,000) | (5,000)
Gross unrealized losses in loss position twelve months or more | 41,656,000 | 44,188,000 |  |  |  | 31,878,000 | 33,675,000 | 9,778,000 |  | 10,513,000 |  |  |  |  |  |
Gross unrealized losses, trust preferred securities, portion representing impairment loss on securities not other-than-temporarily-impaired |  |  |  |  |  |  |  | 4,700,000 |  |  |  |  |  |  |  |
Gross unrealized losses, trust preferred securities, portion representing non-credit impairment loss on securities other-than-temporarily-impaired |  |  |  |  |  |  |  | 5,100,000 |  |  |  |  |  |  |  |
Impairment loss relating to additional increases to the amount related to the credit loss for which an other-than-temporary impairment was previously recognized |  |  |  |  |  |  |  |  |  |  |  | 99,000 |  |  |  |
Decrease in corporate debt securities |  |  |  |  | 663,600,000 |  |  |  |  |  |  |  |  |  |  |
Scheduled maturities of investment securities available-for sale, amortized cost basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due within one year | 360,410,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after one year through five years | 150,822,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after five years through ten years | 519,207,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after ten years | 872,350,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total investment securities available-for-sale | 1,902,789,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Scheduled maturities of investment securities available-for sale, fair value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due within one year | 356,383,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after one year through five years | 149,545,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after five years through ten years | 480,635,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due after ten years | 887,176,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total investment securities available-for-sale | $ 1,873,739,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | For the six months ended June 30, 2012, the Company recorded $99 thousand, on a pre-tax basis, of the credit portion of OTTI through earnings and $5.1 million of the non-credit portion of OTTI for pooled trust preferred securities in other comprehensive income. The Company recorded $633 thousand, on a pre-tax basis, of the credit portion of OTTI through earnings and $5.1 million of the non-credit portion of OTTI for pooled trust preferred securities and other mortgage-backed securities in other comprehensive income for the year ended December 31, 2011.

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- Definition This item represents the fair value of debt securities which are expected to mature within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 20 -Subparagraph a -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 50 -Paragraph 2 -Subparagraph (a),(d) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 + Details
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- Definition This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
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