Accrued Expenses and Other Current Liabilities - Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Millions	Feb. 03, 2018	Jan. 28, 2017
Payables and Accruals [Abstract]
Accrued compensation	$ 68.3	$ 105.8
Other liabilities	34.7	33.0
Other taxes	36.3	45.1
Payroll taxes	11.8	9.9
Accrued expenses	296.9	284.4
Total accrued expenses and other current liabilities	$ 448.0	$ 478.2