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Long Term Debt (Parenthetical) (Detail)
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12 Months Ended |
|---|---|
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Mar. 31, 2013
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Senior Unsecured 3.375% Convertible Notes Due 2038
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| Debt Instrument [Line Items] | |
| Interest rate of debt instrument | 3.375% |
| Maturity year | 2038 |
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2011 Credit Facility Due 2016
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|
| Debt Instrument [Line Items] | |
| Maturity year | 2016 |
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China Term Loan due 2017
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|
| Debt Instrument [Line Items] | |
| Maturity year | 2017 |
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India Term Loan due 2017
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|
| Debt Instrument [Line Items] | |
| Maturity year | 2017 |