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Shareholders' Equity - Number of Awards Authorized and Available for Grant Under 2018 Plan (Detail)
Feb. 01, 2020
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Total awards authorized (in shares) 2,000,000.0
2018 Plan  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Total awards authorized (in shares) 4,100,000
Awards available for grant (in shares) 2,920,000