Business Organization and Summary of Significant Accounting Policies - Adoption of New Accounting Pronouncements (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
May 05, 2018	Feb. 02, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cloud Computing Arrangement costs capitalized		$ 1.1
Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment increasing (decreasing) retained earnings	$ (5.7)
Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment increasing (decreasing) retained earnings	$ 0.7

Amount of the cumulative effect on retained earnings net of related income tax effect.

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-Topic 250
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-Name Accounting Standards Codification
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