| **FAIR VALUE (As Restated) (Quantitative Information) (Details) - USD ($) $ in Thousands**                                                                    | 6 Months Ended |              |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|--------------|
||
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Available-for-sale at fair value                                                                                                                              | $ 19,324,217   | $ 15,908,078 |
| Retail installment contracts held for investment                                                                                                              | 494,700        | 845,900      |
| Mortgage servicing rights                                                                                                                                     | 157,147        | 145,047      |
| Derivative assets at fair value                                                                                                                               | 391,300        | 366,061      |
| Derivative liability at fair value                                                                                                                            | 402,517        | 402,775      |
| Level 3 [Member]                                                                                                                                              |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Available-for-sale at fair value                                                                                                                              | 1,539,483      | 1,267,643    |
| Mortgage servicing rights                                                                                                                                     | 157,147        | 145,047      |
| Derivative assets at fair value                                                                                                                               | 1,903          | 3,070        |
| Derivative liability at fair value                                                                                                                            | 59,495         | 49,248       |
| Recurring [Member]                                                                                                                                            |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Available-for-sale at fair value                                                                                                                              | 19,324,217     | 15,908,078   |
| Retail installment contracts held for investment                                                                                                              | 494,651        | 845,911      |
| Mortgage servicing rights                                                                                                                                     | 157,147        | 145,047      |
| Recurring [Member] | Mortgage banking interest rate lock commitments [Member]                                                                                 |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Derivative assets at fair value                                                                                                                               | 1,885          | 3,063        |
| Recurring [Member] | Total return settlement [Member]                                                                                                         |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Derivative liability at fair value                                                                                                                            | 59,065         | 48,893       |
| Recurring [Member] | Level 3 [Member]                                                                                                                         |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Available-for-sale at fair value                                                                                                                              | 1,539,483      | 1,267,643    |
| Retail installment contracts held for investment                                                                                                              | 494,651        | 845,911      |
| Mortgage servicing rights                                                                                                                                     | 157,147        | 145,047      |
| Recurring [Member] | Level 3 [Member] | Mortgage banking interest rate lock commitments [Member]                                                              |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Derivative assets at fair value                                                                                                                               | 1,885          | 3,063        |
| Recurring [Member] | Level 3 [Member] | Mortgage banking interest rate lock commitments [Member] | Discounted Cash Flow [Member]                              |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Derivative assets at fair value                                                                                                                               | $ 1,885        |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Pull through percentage                                                                                                                                       | 77.34%         |         |
| Recurring [Member] | Level 3 [Member] | Mortgage banking interest rate lock commitments [Member] | Discounted Cash Flow [Member] | Minimum [Member]           |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| MSR value                                                                                                                                                     | 0.68%          |         |
| Recurring [Member] | Level 3 [Member] | Mortgage banking interest rate lock commitments [Member] | Discounted Cash Flow [Member] | Maximum [Member]           |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| MSR value                                                                                                                                                     | 1.00%          |         |
| Recurring [Member] | Level 3 [Member] | Mortgage banking interest rate lock commitments [Member] | Discounted Cash Flow [Member] | Weighted average [Member]  |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| MSR value                                                                                                                                                     | 0.95%          |         |
| Recurring [Member] | Level 3 [Member] | Total return settlement [Member]                                                                                      |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Derivative liability at fair value                                                                                                                            | $ 59,065       | $ 48,893     |
| Recurring [Member] | Level 3 [Member] | Total return settlement [Member] | Discounted Cash Flow [Member]                                                      |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Discount rate                                                                                                                                                 | 8.92%          |         |
| Recurring [Member] | Level 3 [Member] | Financing bonds [Member] | Discounted Cash Flow [Member]                                                              |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Available-for-sale at fair value                                                                                                                              | $ 1,485,627    |         |
| Recurring [Member] | Level 3 [Member] | Financing bonds [Member] | Discounted Cash Flow [Member] | Minimum [Member]                                           |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Discount rate                                                                                                                                                 | 0.77%          |         |
| Recurring [Member] | Level 3 [Member] | Financing bonds [Member] | Discounted Cash Flow [Member] | Maximum [Member]                                           |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Discount rate                                                                                                                                                 | 2.07%          |         |
| Recurring [Member] | Level 3 [Member] | Financing bonds [Member] | Discounted Cash Flow [Member] | Weighted average [Member]                                  |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Discount rate                                                                                                                                                 | 1.12%          |         |
| Recurring [Member] | Level 3 [Member] | Sale-lease back securities [Member] | Consensus Pricing [Member]                                                      |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Available-for-sale at fair value                                                                                                                              | $ 53,856       |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Offered quotes                                                                                                                                                | 136.45%        |         |
| Recurring [Member] | Level 3 [Member] | Retail installment contracts held for investment [Member] | Discounted Cash Flow [Member]                             |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Retail installment contracts held for investment                                                                                                              | $ 494,651      |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| ABS                                                                                                                                                           | 0.40%          |         |
| Prepayment rate (CPR)                                                                                                                                         | 11.00%         |         |
| Recurring [Member] | Level 3 [Member] | Retail installment contracts held for investment [Member] | Discounted Cash Flow [Member] | Minimum [Member]          |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Discount rate                                                                                                                                                 | 5.81%          |         |
| Recovery rate                                                                                                                                                 | 25.00%         |         |
| Recurring [Member] | Level 3 [Member] | Retail installment contracts held for investment [Member] | Discounted Cash Flow [Member] | Maximum [Member]          |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Discount rate                                                                                                                                                 | 12.00%         |         |
| Recovery rate                                                                                                                                                 | 43.00%         |         |
| Recurring [Member] | Level 3 [Member] | Retail installment contracts held for investment [Member] | Discounted Cash Flow [Member] | Weighted average [Member] |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Discount rate                                                                                                                                                 | 10.03%         |         |
| Recovery rate                                                                                                                                                 | 33.48%         |         |
| Recurring [Member] | Level 3 [Member] | Mortgage servicing rights [Member] | Discounted Cash Flow [Member]                                                    |           |         |
| **Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]**                                                                          |           |         |
| Mortgage servicing rights                                                                                                                                     | $ 157,147      |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Discount rate                                                                                                                                                 | 9.90%          |         |
| Recurring [Member] | Level 3 [Member] | Mortgage servicing rights [Member] | Discounted Cash Flow [Member] | Minimum [Member]                                 |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Prepayment rate (CPR)                                                                                                                                         | 0.01%          |         |
| Recurring [Member] | Level 3 [Member] | Mortgage servicing rights [Member] | Discounted Cash Flow [Member] | Maximum [Member]                                 |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Prepayment rate (CPR)                                                                                                                                         | 39.75%         |         |
| Recurring [Member] | Level 3 [Member] | Mortgage servicing rights [Member] | Discounted Cash Flow [Member] | Weighted average [Member]                        |           |         |
| **Fair Value Inputs [Abstract]**                                                                                                                              |           |         |
| Prepayment rate (CPR)                                                                                                                                         | 8.56%          |         |

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Estimated value of the servicing right embedded in the underlying loan, expressed in basis points of outstanding unpaid principal balance
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Price at which a dealer is willing to buy an instrument, used as an input to measure fair value.
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| - Definition
Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.
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| - Definition
Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value.  For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.
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| - Definition
Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value.
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| - Definition
Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.
+ References
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| - Definition
Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.
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