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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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USD ($)
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USD ($)
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 -Number 71
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USD ($)
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 -Number 71
 -Paragraph 9, 10

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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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 -Number 71
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USD ($)
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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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12/31/2010
USD ($)
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12/31/2009
USD ($)
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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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USD ($)
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 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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 -Number 71
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 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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 -Number 71
 -Paragraph 9, 10

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 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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 -Number 71
 -Paragraph 9, 10

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 -Number 71
 -Paragraph 9, 10

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 -Number 71
 -Paragraph 9, 10

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12/31/2010
USD ($)

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12/31/2009
USD ($)

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12/31/2010
USD ($)

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12/31/2009
USD ($)

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12/31/2010
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12/31/2009
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12/31/2010
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12/31/2009
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12/31/2010
USD ($)

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12/31/2009
USD ($)

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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 71
 -Paragraph 9, 10

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