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Fair Value of Derivative Instruments (Detail) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Mar. 31, 2012
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Derivatives, Fair Value [Line Items] |  |  |  |
Derivatives assets, Fair Value | $ 241 | [1] | $ 812 | [1]
Derivatives liabilities, Fair Value | 3,738 | [1] | 4,753 | [1]
Designated as Hedging Instrument |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivatives assets, Fair Value |  |  | 700 |
Derivatives liabilities, Fair Value | 3,084 |  | 881 |
Designated as Hedging Instrument | Prepaid and other current assets | Foreign currency forward contracts |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivatives assets, Fair Value |  |  | 670 |
Designated as Hedging Instrument | Other assets | Lead hedge forward contracts |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivatives assets, Fair Value |  |  | 30 |
Designated as Hedging Instrument | Accrued expenses | Lead hedge forward contracts |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivatives liabilities, Fair Value | 2,832 |  | 881 |
Designated as Hedging Instrument | Accrued expenses | Foreign currency forward contracts |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivatives liabilities, Fair Value | 252 |  |  |
Not Designated as Hedging Instrument |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivatives assets, Fair Value | 241 |  | 112 |
Derivatives liabilities, Fair Value | 654 |  | 3,872 |
Not Designated as Hedging Instrument | Prepaid and other current assets | Foreign currency forward contracts |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivatives assets, Fair Value | 241 |  | 112 |
Not Designated as Hedging Instrument | Accrued expenses | Interest rate swap agreements |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivatives liabilities, Fair Value | 654 |  | 3,628 |
Not Designated as Hedging Instrument | Other liabilities | Interest rate swap agreements |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivatives liabilities, Fair Value |  |  | $ 244 |
[1] | Represents interest rate swap agreements, lead and foreign currency hedges (see Note 12 for asset and liability positions of the interest rate swap agreements, lead and foreign currency hedges at March 31, 2013 and March 31, 2012).

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- Definition Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 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. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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- Definition Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 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. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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