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Operating Segments (Narrative) (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2013
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Segment Reporting [Abstract] |  |  |
Ownership percentage in affiliate | 49.00%us-gaap_EquityMethodInvestmentOwnershipPercentage |  |
Number of regional operating segments | 5 uvv_NumberOfRegionalOperatingSegments |  |
Number of regions into a single reporting segment | 4 uvv_NumberOfRegionsIntoSingleReportingSegment |  |
Investment in unconsolidated affiliate | $ 74.9 us-gaap_EquityMethodInvestments | $ 93.3 us-gaap_EquityMethodInvestments | $ 91.8 us-gaap_EquityMethodInvestments

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 + Details
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Balance Type: | debit
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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of regional operating segments + References No definition available. + Details
Name: | uvv_NumberOfRegionalOperatingSegments
Namespace Prefix: | uvv_
Data Type: | xbrli:positiveIntegerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of regions into a single reporting segment + References No definition available. + Details
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Namespace Prefix: | uvv_
Data Type: | xbrli:positiveIntegerItemType
Balance Type: | na
Period Type: | instant