Divestitures - Earning from Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax expense	$ 64	$ 43	$ 567	$ 152
Earnings (loss) from discontinued operations, net of income taxes	(64)	45	1,812	323
Discontinued Operations, Disposed of by Sale | TPM
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	3,584	4,932	12,258
Cost of revenue	0	2,926	3,959	9,942
Total operating expenses	0	570	718	1,841
Gain on disposal of discontinued operations	0	0	2,124	0
Earnings from operations of discontinued operations	0	88	2,379	475
Income tax expense	64	43	567	152
Earnings (loss) from discontinued operations, net of income taxes	$ (64)	$ 45	$ 1,812	$ 323