| **LEASED VEHICLES, NET (Tables)**                                                    | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
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| **Leases [Abstract]**                                                                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| Schedule of Leased Vehicles, Net                                                     | Leased vehicles, net consisted of the following as of June 30, 2016 and December 31, 2015:  June 30, 2016 December 31, 2015  (in thousands)Leased vehicles $13,114,696 $11,297,752Origination fees and other costs 30,717 29,800Manufacturer subvention payments, net of accretion (1,209,870) (1,048,713)Leased vehicles, gross 11,935,543 10,278,839Less: accumulated depreciation (2,406,801) (1,901,004)Leased vehicles, net $9,528,742 $8,377,835 |
| Schedule of Future Minimum Rental Payments Due to the Company Under Operating Leases | The following summarizes the future minimum rental payments due to the Company as lessor under operating leases as of June 30, 2016 (in thousands):   Remainder of 2016 $872,7262017 1,351,0702018 633,3422019 79,3552020 1,000Total $2,937,493                                                                                                                                                                                                                                                               |

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| - Definition
Schedule of Future Minimum Rental Receivables for Operating Leases [Table Text Block]
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No definition available.
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No definition available.
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| - Definition
Tabular disclosure of lessor's property under leasing agreements and property available for lease (not currently under lease) by property class, the gross amount, accumulated depreciation and net amount of  as of the balance sheet date.
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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718
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