Commitments And Other Matters (Narrative) (Details) (USD $)	1 Months Ended		3 Months Ended		12 Months Ended
	Nov. 30, 2011	Oct. 31, 2010	Jun. 30, 2011	Dec. 31, 2010	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Commitments And Other Matters [Line Items]
Tobacco purchase contracts					$ 792,000,000
Total amount of advances funded towards tobacco purchase					132,000,000
Commitments relating to agricultural materials,capital expenditures					73,000,000
Company total exposure under guarantees					16,000,000
Face amount of guarantee including unpaid accrued interest					20,000,000	26,000,000
Fair value of the guarantees					4,000,000	6,000,000
Other contingent liabilities					3,000,000
Due period of accounts receivables					30
Allowance for doubtful accounts					8,000,000	8,300,000
Cash received in property exchange	9,400,000
Number of warehouses acquired in property exchange	2
Fair value of land and buildings acquired in property exchange	11,200,000
Gain on sale/exchange of property	11,100,000				0	11,111,000	0
Proceeds from insurance settlement, investing activities			9,900,000		0	9,933,000	0
Gain on property and equipment fire loss insurance settlement			9,600,000		0	9,592,000	0
Gain on fire loss insurance settlement			6,900,000
Gain on business interruption insurance settlement			2,100,000				4,800,000
Assigned tobacco production contracts, number of farmers		8,100
Cash proceeds from assignment of farmer contracts and sale of related assets		34,900,000			0	0	34,946,000
Gain from assignment of farmer contracts and sale of assets		19,400,000			0	0	19,368,000
Goodwill, written off related to sale of business unit				5,800,000
Reversal of statutory severance liability			4,000,000
Philip Morris International, Inc [Member]
Commitments And Other Matters [Line Items]
Revenues from customers					550,000,000	610,000,000	750,000,000
Imperial Tobacco Group, PLC [Member]
Commitments And Other Matters [Line Items]
Revenues from customers					330,000,000	360,000,000	320,000,000
Japan Tobacco Inc [Member]
Commitments And Other Matters [Line Items]
Revenues from customers					$ 200,000,000	$ 210,000,000	$ 340,000,000