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Income Per Share - Schedule of Computation of Basic and Diluted Net Income Per Share (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Apr. 30, 2022
Jan. 29, 2022
Oct. 30, 2021
Jul. 31, 2021
May 01, 2021
Jan. 30, 2021
Oct. 31, 2020
Aug. 01, 2020
Apr. 30, 2022
May 01, 2021
May 02, 2020
Earnings Per Share [Abstract]                      
Net income $ 16.2 $ 29.4 $ 27.5 $ 29.1 $ 31.1 $ 31.9 $ 38.6 $ 20.7 $ 102.2 $ 122.3 $ 123.4
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]                      
Denominator for basic income per share - weighted average shares outstanding and vested/unissued RSUs                 37,234,086 38,038,615 37,574,671
Dilutive potential common shares - stock options, RSAs and RSUs (in shares)                 583,360 267,671 269,799
Denominator for diluted income per share                 37,817,446 38,306,286 37,844,470
Basic and diluted income per share:                      
Basic income per share (in dollars per share) $ 0.44 $ 0.80 $ 0.73 $ 0.77 $ 0.82 $ 0.84 $ 1.01 $ 0.55 $ 2.74 $ 3.22 $ 3.28
Diluted income per share (in dollars per share) $ 0.43 $ 0.78 $ 0.72 $ 0.76 $ 0.81 $ 0.83 $ 1.01 $ 0.54 $ 2.70 $ 3.19 $ 3.26
Number of anti-dilutive potentially issuable shares excluded from diluted common shares outstanding                 928,412 738,167 566,620