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NON-COVERED LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 2) (USD $) | 3 Months Ended | 12 Months Ended |  |  |  | 3 Months Ended |  | 3 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2013 item | Dec. 31, 2012 item | Mar. 31, 2013 Residential | Dec. 31, 2012 Residential | Mar. 31, 2013 Residential Minimum item | Mar. 31, 2013 Residential Maximum item | Mar. 31, 2013 Residential Single-family | Mar. 31, 2012 Residential Single-family | Dec. 31, 2012 Residential Single-family | Mar. 31, 2013 Residential Single-family Maximum | Mar. 31, 2013 Residential Multifamily | Mar. 31, 2012 Residential Multifamily | Mar. 31, 2013 Residential Multifamily Minimum | Mar. 31, 2013 Residential Multifamily Midrange | Mar. 31, 2013 Residential Multifamily Maximum
Non-Covered loans receivable disclosures |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued interest on covered and non-covered loans receivable | $ 84,200,000 | $ 76,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Covered and non-covered loans receivable pledged to secure borrowings from the FHLB and the Federal Reserve Bank | 9,010,000,000 | 8,880,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units of residential property securing fixed and adjustable rate first mortgage loans |  |  |  |  | 1 | 4 |  |  |  |  |  |  |  |  |
New first mortgage loans originated |  |  |  |  |  |  | $ 263,100,000 | $ 220,400,000 |  |  | $ 50,300,000 | $ 17,200,000 |  |  |
Adjustable rate mortgage, term of initial fixed interest rates |  |  |  |  |  |  |  |  |  |  |  |  | 6 months | 3 years | 5 years
Loans to value ratio (as a percent) |  |  |  |  |  |  |  |  |  | 65.00% |  |  |  |  |
Ratio of mortgage loans with interest-only features to total mortgage loans within same portfolio category (as a percent) |  |  |  |  |  |  | 1.00% |  | 1.00% |  |  |  |  |  |
Ratio of mortgage loans with variable payment option features to total mortgage loans within same portfolio category (as a percent) |  |  | 1.00% | 1.00% |  |  |  |  |  |  |  |  |  |  |
Number of loans negatively amortizing | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Carrying amount as of the balance sheet date of interest earned on loans receivable but not received. + References No definition available. + Details
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- Definition The term for an initial interest rate period of an adjustable rate mortgage. + References No definition available. + Details
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- Definition Total amount of new first mortgage loans during the reporting period. + References No definition available. + Details
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- Definition Represents the loans to value ratio of original loans. + References No definition available. + Details
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- Definition Represents the number of loans negatively amortizing. + References No definition available. + Details
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- Definition The number of units in residential property that secures both fixed and adjustable rate first mortgage loans. + References No definition available. + Details
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- Definition The ratio of mortgage loans within a portfolio category that offer the borrower interest-only features to the total mortgage loans of that portfolio category as of the balance sheet date. + References No definition available. + Details
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- Definition The ratio of mortgage loans within a portfolio category that offer the borrower variable payment option features to the total mortgage loans of that portfolio category as of the balance sheet date. + References No definition available. + Details
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- Details
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- Definition Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5086-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6467456&loc=d3e113888-111728 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 140 -Paragraph 15 -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. + Details
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