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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, 2013
Dec. 31, 2012
Jun. 30, 2013
Discrete Tax Adjustments
Sep. 30, 2012
Discrete Tax Adjustments
Sep. 30, 2013
Discrete Tax Adjustments
Sep. 30, 2012
Discrete Tax Adjustments
Sep. 30, 2013
Effective Income Tax Rate Excluding Non-Deductible Goodwill Impairment Charge
Sep. 30, 2012
Effective Income Tax Rate Excluding Non-Deductible Goodwill Impairment Charge
Sep. 30, 2013
Effective Income Tax Rate Excluding Non-Deductible Goodwill Impairment Charge
Sep. 30, 2012
Effective Income Tax Rate Excluding Non-Deductible Goodwill Impairment Charge
Income Taxes [Line Items]                      
Discrete adjustment to income tax provision       $ 6,900,000   $ 6,900,000          
Valuation allowances 9,500,000 9,500,000 1,900,000                
Undistributed non-U.S. subsidiary earnings 15,700,000 15,700,000                  
Unrecognized deferred U.S. income tax liability associated with the indefinitely reinvested undistributed earnings 5,500,000 5,500,000                  
Liability for uncertain tax positions 2,900,000 2,900,000 3,800,000                
Reversal of liability for uncertain tax positions   2,200,000                  
Goodwill impairment charge 83,752,000 83,752,000                  
Effective tax rate         38.50% 36.40% 36.60% 38.80% 35.00% 40.50% 35.00%
Income tax expense (benefit)   $ 2,200,000