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Income Taxes - Additional Information (Detail) - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Income Tax Disclosure [Abstract]    
Effective income tax rate 28.00% 27.00%
U.S.federal statutory tax rate 35.00% 35.00%
Unrecognized tax benefits $ 0  
Unrecognized tax benefits recorded during period $ 0