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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Taxes [Line Items]        
Percentage of income attributable to wholly-owned operations and investments for which income tax expense and effective tax rate calculated 100.00%      
Undistributed earnings of foreign subsidiaries $ 113,000      
Valuation allowance 0 $ 0    
State and other net operating loss carry forwards 6,771      
Gross unrecognized tax benefits 3,513 3,719 $ 3,135 $ 2,474
Unrecognized tax benefits that, if recognized, would affect the effective tax rate 2,416 2,417    
Estimated accrued interest and penalties resulting from unrecognized tax benefits $ 384 $ 729    
Minimum        
Income Taxes [Line Items]        
State and other net operating loss carry forwards expiration date 2016      
Maximum        
Income Taxes [Line Items]        
State and other net operating loss carry forwards expiration date 2035