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Income Taxes - Projected Effective Tax Rate for Periods (Detail)
3 Months Ended 9 Months Ended
Oct. 31, 2015
Nov. 01, 2014
Oct. 31, 2015
Nov. 01, 2014
Income Tax Disclosure [Abstract]        
Effective tax rates for income from continuing operations 39.80% 38.50% 35.50% 35.20%