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Derivative Financial Instruments - Additional Information (Detail)
In Thousands, unless otherwise specified |
12 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2013
USD ($)
|
Mar. 31, 2012
USD ($)
|
Mar. 31, 2013
Not Designated as Hedging Instrument
USD ($)
|
Mar. 31, 2012
Not Designated as Hedging Instrument
USD ($)
|
Mar. 31, 2013
Cost of Sales
USD ($)
|
Mar. 31, 2013
Interest rate swap agreements
|
Mar. 31, 2013
Interest rate swap agreements
Other (Income) Expense
Not Designated as Hedging Instrument
USD ($)
|
Mar. 31, 2012
Interest rate swap agreements
Other (Income) Expense
Not Designated as Hedging Instrument
USD ($)
|
Mar. 31, 2013
Lead hedge forward contracts
GBP (£)
|
Mar. 31, 2012
Lead hedge forward contracts
GBP (£)
|
Mar. 31, 2013
Foreign currency forward contracts
USD ($)
|
Mar. 31, 2012
Foreign currency forward contracts
USD ($)
|
Mar. 31, 2013
Foreign currency forward contracts
Other (Income) Expense
Not Designated as Hedging Instrument
USD ($)
|
Mar. 31, 2012
Foreign currency forward contracts
Other (Income) Expense
Not Designated as Hedging Instrument
USD ($)
|
|
| Derivatives, Fair Value [Line Items] | ||||||||||||||
| Notional amount | £ 56,300 | £ 60,000 | $ 21,749 | $ 11,410 | ||||||||||
| Hedge forward contracts, maturity | 1 year | |||||||||||||
| Foreign currency forward contracts | 51,366 | 42,121 | ||||||||||||
| Foreign currency contract, maturity | 1 year | |||||||||||||
| Derivative gain (loss) to be recorded in income within 12 months, before tax | 1,389 | |||||||||||||
| Interest rate swap agreements converted into fixed rate basis | 65,000 | 85,000 | ||||||||||||
| Derivative, maturity date | May 01, 2013 | |||||||||||||
| Change in fair value recorded in other (income) expense, net | 101 | 977 | ||||||||||||
| (Gain) Loss Recognized in Income on Derivatives | $ (2,496) | $ 1,083 | $ 101 | $ 977 | $ (2,597) | $ 106 | ||||||||