Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 116,216	$ 93,723	$ (29,722)
Other comprehensive income (loss), net of tax:
Change in pension benefits, net of taxes of $0, $0 and $18,481, respectively	0	0	54,568
Change in cash flow hedges (swap), net of taxes of $(1,020), $50, and $3,463, respectively	(3,054)	147	10,225
Total Comprehensive Income	$ 113,162	$ 93,870	$ 35,071