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Credit Losses - Schedule of Fair Value and Unrealized Losses on Available for Sale Debt Securities (Details) - USD ($) $ in Thousands | Jul. 31, 2025 | Apr. 30, 2025
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Commercial paper |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Less than 12 months, fair value | $ 4,627 | $ 3,841
Less than 12 months, unrealized losses | 3 | 1
12 months or longer, fair value | 0 | 0
12 months or longer, unrealized losses | 0 | 0
Commercial paper | Cash and Cash Equivalent |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Debt securities AFS, fair value | 599 | 500
Commercial paper | Marketable Securities, Current |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Debt securities, current | 4,028 | 3,341
Commercial paper | Marketable Securities, Non- Current |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Debt securities, non-current | 0 | 0
Corporate notes/bonds |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Less than 12 months, fair value | 17,795 | 7,803
Less than 12 months, unrealized losses | 31 | 10
12 months or longer, fair value | 0 | 0
12 months or longer, unrealized losses | 0 | 0
Corporate notes/bonds | Cash and Cash Equivalent |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Debt securities AFS, fair value | 0 | 0
Corporate notes/bonds | Marketable Securities, Current |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Debt securities, current | 9,788 | 4,630
Corporate notes/bonds | Marketable Securities, Non- Current |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Debt securities, non-current | 8,007 | $ 3,173
U.S. Treasury and Agency Securities |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Less than 12 months, fair value | 3,596 |
Less than 12 months, unrealized losses | 4 |
12 months or longer, fair value | 0 |
12 months or longer, unrealized losses | 0 |
U.S. Treasury and Agency Securities | Cash and Cash Equivalent |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Debt securities AFS, fair value | 0 |
U.S. Treasury and Agency Securities | Marketable Securities, Current |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Debt securities, current | 0 |
U.S. Treasury and Agency Securities | Marketable Securities, Non- Current |  |
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items] |  |
Debt securities, non-current | $ 3,596 |

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