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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 USD ($) | Dec. 31, 2016 segment acquisition | Dec. 31, 2015 USD ($) acquisition | Dec. 31, 2011 acquisition
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |
Number of days until which automobile loans accrue, after which they are charged off |  | 120 days |  |
Minimum number of days past due for loans excluding automobile loans on which interest is generally not accrued |  | 90 days |  |
Minimum period of past due that the company can reasonably estimate future cash flows of acquired loans |  | 90 days |  |
Threshold of loan-to-value ratio to originate a loan (as a percent) |  | 80.00% |  |
Threshold of loan-to-value ratio for private mortgage insurance (as a percent) |  | 80.00% |  |
Threshold percentage of amortization of net actuarial gain or loss in net periodic benefit cost over the average remaining service period of active participants in the Plans |  | 10.00% |  |
Number of reportable segments (segment) |  | 1 |  |
Number of operating segments (segment) |  | 1 |  |
Number of acquisitions completed (acquisition) | acquisition |  | 3 | 2 | 2
Revision In Interest Income With Income Tax Related Component [Member] |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |
Correction of an error, in prior period | $ | $ (1.4) |  | $ 0.0 |

X
- Definition Represents the number of significant acquisitions completed during the period. + References No definition available. + Details
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- Definition Represents the threshold percentage of amortization of net actuarial gain or loss in net periodic benefit cost over the average remaining service period of active participants in the plans. + References No definition available. + Details
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- Definition Represents the minimum period of past due for acquired loan for that the entity has determined that it can reasonably estimate future cash flows. + References No definition available. + Details
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- Definition Represents the threshold of loan-to-value ratio. The entity requires a private mortgage insurance (PMI) having a loan-to-value ratio greater than this threshold. + References No definition available. + Details
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- Definition Represents the threshold of loan-to-value ratio. The entity will not originate a loan having a loan-to-value ratio greater than this threshold. + References No definition available. + Details
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- Definition Represents the threshold period past due for financing receivables, excluding automobile loans, on which interest is generally not accrued. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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- Definition Amount of each individual error being corrected in the correcting adjustment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 1.N) -URI http://asc.fasb.org/extlink&oid=26874127&loc=d3e30840-122693 + Details
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- Definition Threshold period past due for financing receivable to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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