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Fair Value Measurements (Reconciliation Of Change In Balance Of Financial Liability For Guarantees Of Bank Loans To Tobacco Growers) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Fair Value Measurements [Abstract]
Balance at beginning of year	$ 5,932	$ 20,699
Transfer to allowance for loss on direct loans to farmers (removal of prior crop year loans from portfolio)	(5,651)	(8,979)
Transfer from allowance for loss on direct loans to farmers (addition of current crop year loans)	2,197	2,556
Change in discount rate and estimated collection period	37	615
Currency remeasurement	(188)	(1,655)
Balance at end of period	$ 2,327	$ 13,236

X

- Definition

Issues that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

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- Definition

Settlements that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

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- Definition

This element represents total gains or losses for the period (realized and unrealized), arising from liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Name Accounting Standards Codification

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- Definition

This element represents a liability measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Currency remeasurement

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