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COMMITMENTS AND CONTINGENCIES (Details) (USD $) In Millions, unless otherwise specified | 1 Months Ended | 3 Months Ended
--- | --- | ---
Nov. 30, 2007 Lawsuit filed by CTL Minimum | Mar. 31, 2013 Pending litigation, adverse outcome
Commitments and contingencies |  |
Damages asserted | $ 200.0 |
Period for which litigation proceedings and other disputes have not been the subject of discussions or other significant activity |  | 5 years
Accrued contingent liability |  | $ 5.0

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