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Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Taxes [Line Items]      
Reconciliation of income taxes 35.00%    
Valuation allowances related to state net operating loss carryforwards     $ 4,100,000
Increase in effective foreign tax rate   6.00%  
Effective income tax rate impact related to nondeductible acquisition costs   $ 2,400,000  
Unrecognized tax benefits that would impact effective tax rate $ 45,400,000    
Unrecognized tax expense (benefits), interest and penalty expense (benefit) recognized 1,100,000 1,000,000 $ 500,000
Unrecognized tax benefits, accrued interest and penalties 11,000,000 10,200,000  
Deferred tax assets, net operating losses and other tax carryforwards 39,700,000 $ 39,900,000  
Deferred tax assets, net operating losses and other tax carryforwards 8,300,000    
Undistributed earnings of foreign subsidiaries 313,600,000    
Minimum [Member]      
Income Taxes [Line Items]      
Reasonably possible decrease in unrecognized tax benefits $ 4,000,000    
Deferred tax assets, remaining net operating losses and other tax carryforwards expiration period 2022    
Maximum [Member]      
Income Taxes [Line Items]      
Reasonably possible decrease in unrecognized tax benefits $ 5,000,000