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USD ($)
USD ($) / shares
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-Paragraph 45
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-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 45
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USD ($)
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12/31/2010
USD ($)
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3/31/2011
USD ($)
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USD ($)
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-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(1)
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