Share-Based Compensation - Additional Information about Awards Granted under Omnibus Plan (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of awards vested	$ 13.6	$ 22.2	$ 43.9

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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