Credit Losses - Additional Information (Details) - investment	9 Months Ended
	Jan. 31, 2023	Apr. 30, 2022
Commercial paper
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items]
Debt securities, available-for-sale, unrealized loss position, number of investments	11	27
Corporate notes/bonds
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items]
Debt securities, available-for-sale, unrealized loss position, number of investments	19	23
Corporate notes/bonds | Maximum
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items]
Debt instrument term	2 years
U.S. Treasury and Agency Securities
Fair Value And Unrealized Losses On Available For Sale Debt Securities [Line Items]
Debt securities, available-for-sale, unrealized loss position, number of investments	0	1