Shareholders' Equity - Summary of Combined Stock Option Activity and Related Information for Stock Options Granted (Details) - Stock Options - USD ($) $ / shares in Units, $ in Millions |
6 Months Ended | 12 Months Ended |
|---|---|---|
Oct. 29, 2022 |
Apr. 30, 2022 |
|
| Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding [Roll Forward] | ||
| Outstanding - beginning balance (in shares) | 60,000 | |
| Outstanding - ending balance (in shares) | 60,000 | 60,000 |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] | ||
| Wtd. Avg. Exercise Price, Outstanding - beginning balance (in dollars per share) | $ 37.01 | |
| Wtd. Avg. Exercise Price, Outstanding - ending balance (in dollars per share) | $ 37.01 | $ 37.01 |
| Weighted-average life of outstanding options | 1 year 8 months 12 days | 2 years 2 months 12 days |
| Intrinsic value of outstanding options | $ 0.2 | $ 0.5 |