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ACQUISITIONS (Details) - USD ($) $ in Millions |  |  |  | 9 Months Ended
--- | --- | --- | --- | ---
Oct. 06, 2015 | Oct. 01, 2015 | Dec. 24, 2014 | Sep. 30, 2015
Ahana Renewables |  |  |  |
Acquisitions |  |  |  |
Total transaction value |  |  | $ 117.7 |
Cash consideration |  |  | 66.3 |
Reimbursement of cash held |  |  | 12.5 |
Assumed debt |  |  | $ 38.9 |
Ahana Renewables | Minimum | Solar assets |  |  |  |
Acquisitions |  |  |  |
Useful life |  |  |  | 10 years
Ahana Renewables | Maximum | Solar assets |  |  |  |
Acquisitions |  |  |  |
Useful life |  |  |  | 25 years
Ahana Renewables | Tax Equity Investor |  |  |  |
Acquisitions |  |  |  |
Period of placed in service date for solar assets |  |  | 5 years |
Ahana Renewables | Tax Equity Investor | Minimum |  |  |  |
Acquisitions |  |  |  |
Period to receive return on investment |  |  | 2 years |
Ahana Renewables | Tax Equity Investor | Maximum |  |  |  |
Acquisitions |  |  |  |
Period to receive return on investment |  |  | 4 years |
Subsequent Event [Member] |  |  |  |
Acquisitions |  |  |  |
Total transaction value |  | $ 145.0 |  |
Cash consideration |  | 85.0 |  |
Loan amount |  | $ 60.0 |  |
Subsequent Event [Member] | CellOne [Member] |  |  |  |
Acquisitions |  |  |  |
Ownership percentage | 43.00% |  |  |
Ownership interest held by minority shareholders | 15.00% |  |  |
Subsequent Event [Member] | KeyTech [Member] |  |  |  |
Acquisitions |  |  |  |
Ownership percentage | 51.00% |  |  |
Cash consideration | $ 42.0 |  |  |
Subsequent Event [Member] | KeyTech [Member] | CellOne [Member] |  |  |  |
Acquisitions |  |  |  |
Ownership percentage | 85.00% |  |  |

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