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Retirement Savings Plans (Details) - USD ($)
$ in Millions
 12 Months Ended
Jan. 30, 2016
Jan. 31, 2015
Feb. 01, 2014
Retirement savings plan      
Minimum number of working hours required to participate in the plan 1000 hours    
Minimum employee age required to participate in the plan 21 years    
Percentage of the participant's compensation for which a discretionary matching contribution may be made by the Company 10.00%    
Company's discretionary matching contribution percentage 50.00%    
Total expense recorded under the plan, net of forfeitures $ 7.0 $ 6.1 $ 6.4
Deferred compensation plans      
Liability for compensation deferred under the Company's plans 53.0 52.2  
Total expense recorded under the plans, net of forfeitures $ 2.0 $ 1.5 $ 1.0