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Income Taxes - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Valuation allowance for deferred income tax assets $ 15,644,000 $ 9,344,000 $ 8,800,000
(Increase) decrease in total valuation allowance (6,300,000) (500,000) 2,600,000
Tax effect of state and foreign net operating loss carryforwards 20,828,000 17,115,000  
2014 300,000    
2015 100,000    
2016 0    
2017 700,000    
2018 300,000    
Thereafter 19,400,000    
Valuation allowance foreign and state net operating loss carryforwards 15,400,000    
Not provided U.S. income taxes of unremitted foreign earnings 218,000,000    
Reduction due to expiration of certain federal and state statutes of limitations 11,479,000 11,965,000 8,640,000
Settlements   895,000 4,877,000
Interest and penalties expense (income) in the provision for income taxes $ (300,000) $ (1,100,000) $ 700,000