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LOANS PAYABLE AND OTHER BORROWINGS - Narrative (Details) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($) | Dec. 31, 2015 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |
Gross repayments | $ 56,000,000 | $ 137,000,000 | $ 56,000,000 | $ 210,000,000 |
Gross borrowings | 56,000,000 | $ 110,000,000 | 56,000,000 | $ 210,000,000 |
Revolving Credit Facility [Member] | Line of Credit [Member] |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Current borrowing capacity | 500,000,000 |  | 500,000,000 |  |
Maximum borrowing capacity | 600,000,000 |  | 600,000,000 |  |
Minimum tangible net worth | $ 670,300,000 |  | $ 670,300,000 |  |
Leverage ratio | 0.6 |  | 0.6 |  |
Interest coverage ratio |  |  | 1.5 |  |
Total LOCs | $ 32,097,000 |  | $ 32,097,000 |  | $ 27,684,000
Remaining borrowing capacity | 467,900,000 |  | 467,900,000 |  |
Revolving Credit Facility [Member] | Line of Credit [Member] | Revolving Credit Facility Maturing July 2019 [Member] |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Current borrowing capacity | $ 60,000,000 |  | $ 60,000,000 |  |

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