Commitments And Other Matters (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Commitments And Other Matters [Line Items]
Total amount of advances funded towards tobacco purchase	$ 139,000
Commitments relating to agricultural materials,capital expenditures	102,000
Other contingent liabilities	500
Tax Adjustments, Settlements, and Unusual Provisions	0	$ (29,236)	$ 0
Santa Catarina [Member]
Commitments And Other Matters [Line Items]
Brazil Audit Assessment For Tax, Penalties, And Interest On Recoverable Value Added Tax Credits	14,000
Tax Adjustments, Settlements, and Unusual Provisions	5,000
Parana [Member]
Commitments And Other Matters [Line Items]
Brazil Audit Assessment For Tax, Penalties, And Interest On Recoverable Value Added Tax Credits	11,000
Reduction of Brazil Audit Assessment For Tax, Penalties, And Interest On Recoverable Value Added Tax Credits	3,000
Parana [Member] | Minimum [Member]
Commitments And Other Matters [Line Items]
Estimate of possible loss on remaining VAT audit assessment	0
Parana [Member] | Maximum [Member]
Commitments And Other Matters [Line Items]
Estimate of possible loss on remaining VAT audit assessment	3,000
Next Fiscal Year [Member]
Commitments And Other Matters [Line Items]
Tobacco purchase contracts	642,000
After Next Fiscal Year [Member]
Commitments And Other Matters [Line Items]
Tobacco purchase contracts	$ 189,000