Income Taxes - Schedule Of Total Deferred Tax Assets And Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2019	Jul. 31, 2018
Deferred tax assets	$ 273,273	$ 97,375
Deferred tax liabilities	(322,855)	(18,931)
Valuation allowance	(12,945)
Net deferred tax (liabilities)	$ (62,527)
Net deferred tax assets		$ 78,444