XML 119 R107.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income Taxes - Additional Information (Detail)
3 Months Ended 9 Months Ended
Oct. 07, 2017
Oct. 08, 2016
Oct. 07, 2017
Oct. 08, 2016
Income Tax Disclosure [Abstract]        
Effective tax rate 40.60% 34.60% 32.10% 35.10%