Derivatives and Hedging Activities Notional Amount of Outstanding Derivatives (Tables)

6 Months Ended

Jan. 31, 2020

Derivative Instruments and Hedging Activities Disclosures [Line Items]

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

	January 31, 2020		July 31, 2019
Designated as cash flow hedges	$	13,046	$	26,013
Non-designated hedges	3,483		3,376
Total foreign exchange contracts	$	16,529	$	29,389