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1/1/2010 - 12/31/2010
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1/1/2010 - 12/31/2010
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1/1/2010 - 12/31/2010
USD ($)

USD ($) / shares
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1/1/2009 - 12/31/2009
USD ($) / shares

USD ($)
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1/1/2008 - 12/31/2008
USD ($)

USD ($) / shares
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 -Number 123R
 -Paragraph A240
 -Subparagraph c(2)

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