CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 3,029	$ 30,200	$ 7,460	$ (12,271)
Other comprehensive income (loss):
Foreign currency translation adjustment	(819)	(2,461)	999	(2,276)
Pension liability adjustments, net of tax	0	0	(1,078)	0
Other comprehensive loss	(819)	(2,461)	(79)	(2,276)
Comprehensive income (loss)	$ 2,210	$ 27,739	$ 7,381	$ (14,547)