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Information Related to Recurring Fair Value Measurement of Derivative Instruments in Our Consolidated Condensed Balance Sheet (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Asset Derivatives, Fair Value, Total $ 2,049
Fair Value, Inputs, Level 2 | Foreign Currency Derivatives | Noncurrent Assets
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Asset Derivatives, Fair Value, Total 1,704
Fair Value, Inputs, Level 2 | Currency Related Swap
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Net Asset/(Liabilities) 11,077
Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Foreign Currency Derivatives | Noncurrent Liabilities
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Liability Derivatives, Fair value 149
Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Interest Rate Swap | Current Liabilities
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Liability Derivatives, Fair value 43
Net Asset/(Liabilities) 43
Fair Value, Inputs, Level 2 | Not a hedge | Foreign Currency Derivatives
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Liability Derivatives, Fair value 149
Net Asset/(Liabilities) 1,900
Fair Value, Inputs, Level 2 | Not a hedge | Foreign Currency Derivatives | Noncurrent Assets
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Net Asset/(Liabilities) 1,704
Fair Value, Inputs, Level 2 | Not a hedge | Currency Related Swap
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Liability Derivatives, Fair value 11,077
Fair Value, Inputs, Level 2 | Not a hedge | Currency Related Swap | Current Liabilities
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Liability Derivatives, Fair value 2,771
Fair Value, Inputs, Level 2 | Not a hedge | Currency Related Swap | Noncurrent Liabilities
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Liability Derivatives, Fair value 8,306
Fair Value, Inputs, Level 2 | Contract One | Designated as Hedging Instrument | Foreign Currency Derivatives | Current Assets
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Asset Derivatives, Fair Value, Total 211
Fair Value, Inputs, Level 2 | Contract One | Designated as Hedging Instrument | Foreign Currency Derivatives | Noncurrent Liabilities
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Net Asset/(Liabilities) 62
Fair Value, Inputs, Level 2 | Contract Two | Not a hedge | Foreign Currency Derivatives | Current Assets
  
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]  
Asset Derivatives, Fair Value, Total 134
Net Asset/(Liabilities) $ 134