Leases - Narrative (Details) $ in Thousands	12 Months Ended
	Apr. 30, 2025 USD ($)	Jul. 31, 2024 phase	Jan. 31, 2024 phase	Jul. 31, 2023 phase	Apr. 30, 2023 phase	Feb. 21, 2023 ft²	Oct. 31, 2022 phase	Jan. 31, 2022 phase	Aug. 25, 2021 ft²
Leases [Abstract]
Area under lease (in square feet) | ft²									283,015
Number of phases | phase		7	6	5	4		3	2
Increase (decrease) in right-of-use asset | $	$ 1,300
Increase (decrease) in operating lease, liability, noncurrent | $	$ 1,300
Sub-leased space area (in square feet) | ft²						3,130			283,013