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Employee Benefit Plans (Details 7)
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12 Months Ended | |
|---|---|---|
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Mar. 31, 2013
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Mar. 31, 2012
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| Summary of weighted average asset allocation of the plan assets by asset category | ||
| Target Plan Asset Allocations | 100.00% | 100.00% |
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Equity Securities [Member]
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| Summary of weighted average asset allocation of the plan assets by asset category | ||
| Target Plan Asset Allocations Range Minimum | 50.00% | |
| Target Plan Asset Allocations Range Maximum | 70.00% | |
| Target Plan Asset Allocations | 68.00% | 67.00% |
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Debt Securities [Member]
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| Summary of weighted average asset allocation of the plan assets by asset category | ||
| Target Plan Asset Allocations Range Minimum | 20.00% | |
| Target Plan Asset Allocations Range Maximum | 50.00% | |
| Target Plan Asset Allocations | 32.00% | 33.00% |
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Other, including cash [Member]
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| Summary of weighted average asset allocation of the plan assets by asset category | ||
| Target Plan Asset Allocations Range Minimum | 0.00% | |
| Target Plan Asset Allocations Range Maximum | 10.00% | |
| Target Plan Asset Allocations | ||
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Target allocation of investments of this type to total plan assets presented on a weighted average basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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