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Commitments And Other Matters (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended |
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Mar. 31, 2021 | Mar. 31, 2020
Commitments And Other Matters [Line Items] |  |
Total amount of advances funded towards tobacco purchase | $ 122.0 |
Commitments relating to agricultural materials,capital expenditures | 103.0 |
Face amount of guarantee including unpaid accrued interest |  | $ 3.0
Fair value of the guarantees |  | $ 0.1
Other contingent liabilities | 1.0 |
Santa Catarina [Member] |  |
Commitments And Other Matters [Line Items] |  |
Brazil Audit Assessment For Tax, Penalties, And Interest On Recoverable Value Added Tax Credits | 7.0 |
Reduction of Brazil Audit Assessment For Tax, Penalties, And Interest On Recoverable Value Added Tax Credits | 8.0 |
Santa Catarina [Member] | Minimum [Member] |  |
Commitments And Other Matters [Line Items] |  |
Estimate of possible loss on remaining VAT audit assessment | 0.0 |
Santa Catarina [Member] | Maximum [Member] |  |
Commitments And Other Matters [Line Items] |  |
Estimate of possible loss on remaining VAT audit assessment | 8.0 |
Parana [Member] |  |
Commitments And Other Matters [Line Items] |  |
Brazil Audit Assessment For Tax, Penalties, And Interest On Recoverable Value Added Tax Credits | 10.0 |
Reduction of Brazil Audit Assessment For Tax, Penalties, And Interest On Recoverable Value Added Tax Credits | 3.0 |
Parana [Member] | Minimum [Member] |  |
Commitments And Other Matters [Line Items] |  |
Estimate of possible loss on remaining VAT audit assessment | 0.0 |
Parana [Member] | Maximum [Member] |  |
Commitments And Other Matters [Line Items] |  |
Estimate of possible loss on remaining VAT audit assessment | 3.0 |
Next Fiscal Year [Member] |  |
Commitments And Other Matters [Line Items] |  |
Tobacco purchase contracts | 442.0 |
After Next Fiscal Year [Member] |  |
Commitments And Other Matters [Line Items] |  |
Tobacco purchase contracts | $ 123.0 |

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- Definition Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12201-110248 + Details
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- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. + References No definition available. + Details
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- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12021-110248 + Details
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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- Definition Advances to Suppliers Current and Noncurrent + References No definition available. + Details
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