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      <ElementPrefix>us-gaap</ElementPrefix>
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      <PeriodType>instant</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
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      <IsSegmentTitle>false</IsSegmentTitle>
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 -Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 132R
 -Paragraph 5
 -Subparagraph d(iv)(b)(i)

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 49

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  <HasPureData>false</HasPureData>
  <SharesShouldBeRounded>true</SharesShouldBeRounded>
</InstanceReport>
