- DefinitionNominal number of units used to calculate payment on derivative.
Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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| Name: | us-gaap_DerivativeNonmonetaryNotionalAmount | 
| Namespace Prefix: | us-gaap_ | 
| Data Type: | xbrli:decimalItemType | 
| Balance Type: | na | 
| Period Type: | instant |