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Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Contingency [Line Items]        
Deferred taxes and other included a deferred tax benefit $ 2,700,000 $ 9,600,000 $ 15,100,000  
Other taxes total expense $ 800,000 $ 200,000 $ 3,600,000  
Federal income tax rate 35.00% 35.00% 35.00%  
Valuation allowances $ 3,800,000 $ 3,200,000    
Research and development, tax credit 1,500,000 1,800,000 $ 3,000,000  
Unremitted earnings, reinvested 338,600,000 305,600,000    
Deferred tax liability 0      
Gross unrecognized tax benefits 12,200,000 $ 14,900,000 $ 14,900,000 $ 30,400,000
Unrecognized tax benefits that would impact effective tax rate 10,800,000      
Minimum [Member]        
Income Tax Contingency [Line Items]        
Gross unrecognized tax benefits balance may decrease within the next twelve months 0      
Maximum [Member]        
Income Tax Contingency [Line Items]        
Gross unrecognized tax benefits balance may decrease within the next twelve months 1,700,000      
United States - State [Member]        
Income Tax Contingency [Line Items]        
Net operating loss carryforwards 80,900,000      
Tax credit carryforwards $ 400,000      
Tax credit carryforwards expiration year 2016      
United States - State [Member] | Minimum [Member]        
Income Tax Contingency [Line Items]        
Net operating loss carryforwards expiration year 2016      
United States - State [Member] | Maximum [Member]        
Income Tax Contingency [Line Items]        
Net operating loss carryforwards expiration year 2035      
Foreign Tax Authority [Member]        
Income Tax Contingency [Line Items]        
Net operating loss carryforwards $ 4,200,000      
Net operating loss carryforwards expiration year 2020      
Tax credit carryforwards $ 2,300,000      
Tax credit carryforwards expiration year 2028