Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2019	Jan. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 18,800	$ 32,488	$ 38,042	$ 55,417
Other comprehensive loss (income):
Foreign currency translation	(417)	12,379	(5,640)	11,146
Total other comprehensive loss (income)	(417)	12,379	(5,640)	11,146
Comprehensive income	$ 18,383	$ 44,867	$ 32,402	$ 66,563