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Weighted-Average Asset Allocation of Said Plan Assets for Pension Benefits (Detail) - Pension | Mar. 31, 2018
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Funds managed by trust |
Weighted-average asset allocation | 100.00%
Government Securities |
Funds managed by trust |
Weighted-average asset allocation | 5.90%
Debenture and bonds |
Funds managed by trust |
Weighted-average asset allocation | 78.90%
Other |
Funds managed by trust |
Weighted-average asset allocation | 15.20%

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- Definition Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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