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CONCENTRATIONS OF RISK (Details)
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12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Counterparty A | Revenue | Customer concentration
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| CONCENTRATIONS OF RISK | |||
| Total revenues, major customer percentage | 22.00% | 28.00% | |
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Counterparty A | Accounts receivable | Credit concentration
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| CONCENTRATIONS OF RISK | |||
| Total revenues, major customer percentage | 44.00% | 38.00% | |
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Counterparty B | Revenue | Customer concentration
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| CONCENTRATIONS OF RISK | |||
| Total revenues, major customer percentage | 18.00% | 20.00% | 34.00% |
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Counterparty B | Accounts receivable | Credit concentration
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| CONCENTRATIONS OF RISK | |||
| Total revenues, major customer percentage | 13.00% | 24.00% | |
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Counterparty C | Revenue | Customer concentration
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| CONCENTRATIONS OF RISK | |||
| Total revenues, major customer percentage | 12.00% | 17.00% | |
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Counterparty C | Accounts receivable | Credit concentration
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| CONCENTRATIONS OF RISK | |||
| Total revenues, major customer percentage | 0.00% | ||
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Counterparty D | Revenue | Customer concentration
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| CONCENTRATIONS OF RISK | |||
| Total revenues, major customer percentage | 12.00% | ||
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Counterparty E | Revenue | Customer concentration
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| CONCENTRATIONS OF RISK | |||
| Total revenues, major customer percentage | 10.00% | ||