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STOCK BASED COMPENSATION - Stock Incentive Plan (Details) - USD ($)
$ in Millions
3 Months Ended
May 06, 2018
Apr. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Stock-based compensation expense $ 11.6 $ 8.7
Recognized income tax benefits associated with stock based compensation expense 2.3 2.7
Tax deduction associated with stock plan award transactions 11.7 $ 5.5
Discrete Net Excess Tax Benefits from Share-Based Compensation recognized in Provision for Income Taxes $ 4.5