XML 53 R42.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income Taxes (Narrative) (Details)
3 Months Ended 9 Months Ended
Oct. 29, 2017
Oct. 30, 2016
Oct. 29, 2017
Oct. 30, 2016
Income Taxes [Abstract]        
Effective tax rate 36.00% 40.00% 39.00% 39.00%