Leases - Narrative (Details) $ in Millions	3 Months Ended
	Jan. 31, 2024 USD ($) phase	Jul. 31, 2023 USD ($) phase	Apr. 30, 2024 phase	Apr. 30, 2023 phase	Feb. 21, 2023 ft²	Oct. 31, 2022 phase	Aug. 25, 2021 ft² phase
Leases [Abstract]
Area under lease (in square feet) | ft²							283,015
Number of phases | phase	6	5	7	4		3	2
Decrease in right-of-use asset | $	$ 1.7	$ 1.6
Decrease in lease liability | $	$ 1.7	$ 1.6
Sub-leased space area (in square feet) | ft²					3,130		283,013