Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Apr. 30, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 8,175	$ 18,736	$ 46,217	$ 74,153
Other comprehensive (loss) income:
Foreign currency translation	(3,168)	(6,538)	(8,808)	4,608
Interest rate swap	609	0	609	0
Total other comprehensive (loss) income:	(2,559)	(6,538)	(8,199)	4,608
Comprehensive income	$ 5,616	$ 12,198	$ 38,018	$ 78,761

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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