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Financial Instruments - Additional Information (Detail) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2014
Derivative [Line Items]    
Amount of losses, net of income taxes, reclassified to earnings from change in fair value of derivatives component of accumulated other comprehensive loss $ 900,000 $ 1,800,000
Estimated reclassification of losses, net of income taxes, from the change in fair value of derivatives component of accumulated other comprehensive loss to earnings during the next twelve months   2,400,000
Interest rate swap agreements
    
Derivative [Line Items]    
Derivative liabilities 4,500,000 4,500,000
Aggregate notional principal amount of outstanding interest rate swap agreements 293,400,000 293,400,000
Net payments under derivative swap agreements 1,600,000 3,200,000
Foreign Currency Exchange Rate Risk
    
Derivative [Line Items]    
Foreign currency (losses) gains of net investment hedges included in accumulated other comprehensive (loss) income 3,800,000 3,300,000
Accrued liabilities | Interest rate swap agreements
    
Derivative [Line Items]    
Derivative liabilities 4,200,000 4,200,000
Other liabilities | Interest rate swap agreements
    
Derivative [Line Items]    
Derivative liabilities 300,000 300,000
Carrying (Reported) Amount, Fair Value Disclosure [Member]
    
Derivative [Line Items]    
Cash and cash equivalents 133,928,000 133,928,000
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Interest rate swap agreements
    
Derivative [Line Items]    
Derivative liabilities 4,528,000 4,528,000
Estimate of Fair Value, Fair Value Disclosure [Member]
    
Derivative [Line Items]    
Cash and cash equivalents 133,928,000 133,928,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Interest rate swap agreements
    
Derivative [Line Items]    
Derivative liabilities 4,528,000 4,528,000
Bank Debt | Carrying (Reported) Amount, Fair Value Disclosure [Member]
    
Derivative [Line Items]    
Long-Term Debt 1,217,472,000 1,217,472,000
Bank Debt | Estimate of Fair Value, Fair Value Disclosure [Member]
    
Derivative [Line Items]    
Long-Term Debt 1,217,472,000 1,217,472,000
Senior Notes Five and One Half Percent [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member]
    
Derivative [Line Items]    
Long-Term Debt 300,000,000 300,000,000
Senior Notes Five and One Half Percent [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
    
Derivative [Line Items]    
Long-Term Debt 312,750,000 312,750,000
5% Senior Notes | Carrying (Reported) Amount, Fair Value Disclosure [Member]
    
Derivative [Line Items]    
Long-Term Debt 500,000,000 500,000,000
5% Senior Notes | Estimate of Fair Value, Fair Value Disclosure [Member]
    
Derivative [Line Items]    
Long-Term Debt $ 515,000,000 $ 515,000,000
Five Percent Senior Notes due 2020 [Member] | Senior Notes [Member]
    
Derivative [Line Items]    
Senior note interest rate 5.00% 5.00%
Five and One Half Percent Senior Notes due 2022 [Member] | Senior Notes [Member]
    
Derivative [Line Items]    
Senior note interest rate 5.50% 5.50%