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12/31/2010
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2/23/2011
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12/31/2010
USD ($)
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12/31/2010
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12/31/2010
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8/2/2010
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obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher SEC
 -Name Regulation S-X (SX)
 -Number 210
 -Section 03
 -Paragraph 15
 -Subparagraph 5
 -Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher SEC
 -Name Regulation S-X (SX)
 -Number 210
 -Section 03
 -Paragraph 15
 -Subparagraph a
 -Article 7

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