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Concentration of Credit Risk and Fair Value of Financial Assets and Liabilities (Details)
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3 Months Ended | |
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Jun. 30, 2011
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Jun. 30, 2010
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| Concentration Risk [Line Items] | ||
| Concentration Risk, Additional Characteristic | three | four |
| Concentration Risk, Percentage | 91.00% | 92.00% |
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- Definition
For an entity that discloses a concentration risk as a percentage of some financial balance or benchmark, this item identifies a second characteristic of the concentration. For example, "Europe" is the second characteristic in the phrase: "net assets in Europe are 70% of total net assets". Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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- Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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