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Information Related to Recurring Fair Value Measurement of Derivative Instruments (Detail) (Fair Value, Inputs, Level 2, USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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Currency Related Swap | Noncurrent Liabilities |  |
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items] |  |
Net Asset/(Liabilities) | $ (15,876) | $ (19,678)
Foreign Currency Derivatives |  |
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items] |  |
Net Asset/(Liabilities) | 3,830 |
Derivative Asset Fair Value Net |  |
Asset Derivatives, Fair Value, Total | 4,301 |
Foreign Currency Derivatives | Noncurrent Assets |  |
Derivative Asset Fair Value Net |  |
Asset Derivatives, Fair Value, Total | 4,141 |
Not a hedge | Currency Related Swap |  |
Derivative Liability Fair Value Net |  |
Liability Derivatives, Fair value | (15,876) | (19,678)
Not a hedge | Currency Related Swap | Noncurrent Liabilities |  |
Derivative Liability Fair Value Net |  |
Liability Derivatives, Fair value | (13,245) | (17,189)
Not a hedge | Currency Related Swap | Current Liabilities |  |
Derivative Liability Fair Value Net |  |
Liability Derivatives, Fair value | (2,631) | (2,489)
Not a hedge | Foreign Currency Derivatives |  |
Derivative Liability Fair Value Net |  |
Liability Derivatives, Fair value | (471) |
Not a hedge | Foreign Currency Derivatives | Current Liabilities |  |
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items] |  |
Net Asset/(Liabilities) | (468) | 413
Derivative Liability Fair Value Net |  |
Liability Derivatives, Fair value | (471) | (2,262)
Not a hedge | Foreign Currency Derivatives | Current Assets |  |
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items] |  |
Net Asset/(Liabilities) | 157 |
Derivative Asset Fair Value Net |  |
Asset Derivatives, Fair Value, Total | 3 | 2,675
Not a hedge | Foreign Currency Derivatives | Noncurrent Assets |  |
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items] |  |
Net Asset/(Liabilities) | 4,141 |
Not a hedge | Commodity Derivatives | Current Liabilities |  |
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items] |  |
Net Asset/(Liabilities) |  | (144)
Derivative Liability Fair Value Net |  |
Liability Derivatives, Fair value |  | (144)
Designated as Hedging Instrument [Member] | Foreign Currency Derivatives | Current Assets |  |
Derivative Asset Fair Value Net |  |
Asset Derivatives, Fair Value, Total | 157 |
Designated as Hedging Instrument [Member] | Interest Rate Swap | Current Liabilities |  |
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items] |  |
Net Asset/(Liabilities) | (224) | (206)
Derivative Liability Fair Value Net |  |
Liability Derivatives, Fair value | $ (224) | $ (206)

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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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- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13495-108611 + Details
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