Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 13,708	$ 55,042	$ 91,041
Other comprehensive loss:
Foreign currency translation	11,951	(13,287)	(1,556)
Interest rate swap, net of tax	(17,353)	2,546	0
Total other comprehensive loss:	(5,402)	(10,741)	(1,556)
Comprehensive income	$ 8,306	$ 44,301	$ 89,485