XML 56 R37.htm IDEA: XBRL DOCUMENT v3.3.1.900
Summary of Significant Accounting Policies - Advertising (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 30, 2016
Jan. 31, 2015
Feb. 01, 2014
Advertising [Line Items]      
Advertising Expense $ 110.5 $ 104.6 $ 85.9