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Income Taxes - Additional Information (Detail) (USD $)
 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Sep. 30, 2014
Effective Income Tax Rate Excluding Non-Deductible Goodwill Impairment Charge
Sep. 30, 2014
Effective Income Tax Rate Excluding Non-Deductible Goodwill Impairment Charge
Sep. 30, 2014
Discrete Tax Adjustments
Sep. 30, 2013
Discrete Tax Adjustments
Sep. 30, 2013
Discrete Tax Adjustments
Sep. 30, 2014
Foreign deferred tax assets
Income Tax [Line Items]                    
Effective tax rate         35.40% 36.20%   38.00% 36.40%  
Non-deductible goodwill impairment charge $ 83,752,000   $ 83,752,000              
Discrete adjustment to income tax provision             0   6,900,000  
Income tax expense (benefit)     2,200,000              
Valuation allowances 9,500,000 9,800,000 9,500,000 10,200,000            
Decrease valuation allowance                   (400,000)
Undistributed non U.S Subsidiary earnings   22,500,000                
Unrecognized deferred U.S. income tax liability associated with the indefinitely reinvested undistributed earnings   7,900,000                
Liability for uncertain tax position   2,200,000   2,900,000            
Reversal liability for uncertain tax positions   $ (1,200,000)