Income Taxes - Reconciliation of Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017
Current
Federal	$ 13,494	$ 24,288	$ 28,900
State	3,976	5,078	4,352
International	4,869	4,626	1,545
Total	22,339	33,992	34,797
Deferred
Federal	683	(7,308)	2,020
State	(15)	491	261
International	(2,730)	(703)	(2,223)
Total	$ (2,062)	$ (7,520)	$ 58