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Leases (Finance Leases Weighted Average Remaining Lease Term and Discount Rate) (Details) | 12 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Finance Leases Weighted Average Remaining Lease Term And Discount Rate [Abstract] |  |
Remaining Lease Term Finance Lease Weighted Average | 3 | 4
Finance Lease Weighted Average Discount Rate Percent | 3.60% | 3.50%

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- Definition Finance Leases Remaining lease term, weighted average abstract. + References No definition available. + Details
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- Definition Weighted average discount rate for finance lease calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(4) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 + Details
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