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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - DERIVATIVE INSTRUMENTS (Details) | 12 Months Ended
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Dec. 31, 2017
Low end of range |
DERIVATIVE INSTRUMENTS |
Range used to determine if derivative instrument is effective | 80.00%
High end of range |
DERIVATIVE INSTRUMENTS |
Range used to determine if derivative instrument is effective | 125.00%

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- Definition The percentage used to determine if a hedge is effective and qualifies for hedge accounting. + References No definition available. + Details
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- Details
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