| **COMMITMENTS, CONTINGENCIES, AND GUARANTEES (As Restated) (Tables)** | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
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| **Commitments and Contingencies Disclosure [Abstract]**               |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| Schedule of Commitments Amount                                        | The following table details the amount of commitments at the dates indicated: Other Commitments September 30, 2015 December 31, 2014  (in thousands)Commitments to extend credit $30,570,879 $28,792,062Unsecured revolving lines of credit — 5Letters of credit 1,890,547 1,789,666Recourse and credit enhancement exposure on sold loans 71,845 174,902Commitments to sell loans 60,921 82,791Total commitments $32,594,192 $30,839,426                                                                                  |
| Schedule of Commitments to Extend Credit, Expiration Periods          | The following table details the amount of commitments to extend credit expiring per period as of the dates indicated:  September 30, 2015 December 31, 2014  (in thousands)One year or less $5,563,216 $5,968,468Over 1 year to 3 years 5,626,208 5,322,291Over 3 years to 5 years 12,254,421 10,810,213Over 5 years (1) 7,127,034 6,691,090Total $30,570,879 $28,792,062(1)Includes certain commitments to extend credit that do not have a contractual maturity date, but are expected to be outstanding greater than 5 years. |
| Schedule of Letters of Credit, Expiration Periods                     | The following table details the amount of letters of credit expiring per period as of the dates indicated:   September 30, 2015 December 31, 2014  (in thousands)One year or less $1,312,652 $1,250,124Over 1 year to 3 years 246,126 285,108Over 3 years to 5 years 310,476 248,209Over 5 years 21,293 6,225Total $1,890,547 $1,789,666                                                                                                                                                                                         |
| Schedule of Representation and Warranty Reserve Activity              | The table below represents the activity in the representation and warranty reserve for the dates indicated.   Three-Month PeriodEnded September 30,  Nine-Month PeriodEnded September 30,  2015 2014 2015 2014  (in thousands)Beginning Balance $23,008 $40,862 $24,266 $54,836Changes in Estimate 655 10,894 935 3,315Claims (429) (794) (1,967) (7,189)Ending Balance $23,234 $50,962 $23,234 $50,962                                                                             |

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Tabular disclosure of commitments and contingencies by maturities.
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Rollforward of activities in the liability for representation and warranty reserve (loan repurchase losses)
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Tabular disclosure of information about obligations resulting from other commitments.
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| - Definition
Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690
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