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Derivative Financial Instruments (Schedule Of Recognized Pre-Tax Gains (Losses) In Consolidated Statements Of Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Forward Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains recognized in other income (expense), net		$ 3,206
Gains recognized in cost of revenues		1,514
Gains reclassified from other comprehensive income to other income (expense) on discontinued cash flow hedges		1,560
Total		6,280
Forward Foreign Exchange Contracts Related To Non- Functional Currency Receivable Balances [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains recognized in other income (expense), net	$ 1,734	$ 6,666	$ (3,345)

X

- Definition

Derivative instruments, gain (loss) recognized in cost of revenue.

+ References

No definition available.

+ Details

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X

- Definition

Derivative instruments, gain (loss) recognized in other income (expense), net.

+ References

No definition available.

+ Details

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X

- Definition

Derivative instruments, gains (loss )reclassified from other comprehensive income to other income (expense) on discontinued cash flow hedges.

+ References

No definition available.

+ Details

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X

- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5618551-113959

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