Derivatives and Hedging Activities (Tables)

3 Months Ended

Oct. 31, 2020

Jul. 31, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]

The following table summarizes the amount of pre-tax gains and losses related to foreign exchange contracts designated as cash flow hedging instruments:

	Three months ended October 31,
	2020		2019
Gains recognized in OCI	$	697	$	196
(Losses) gains reclassified from OCI into cost of goods sold	(211)		381

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

The U.S. dollar equivalent notional amounts of outstanding forward exchange contracts were as follows:

	October 31, 2020		July 31, 2020
Designated as cash flow hedges	$	19,247	$	24,600
Non-designated hedges	3,242		3,107
Total foreign exchange contracts	$	22,489	$	27,707

Fair Values of Derivative Instruments in Consolidated Balance Sheets

Fair values of derivative instruments in the condensed consolidated balance sheets were as follows: 

	October 31, 2020				July 31, 2020
	Prepaid expenses and other current assets		Other current liabilities		Prepaid expenses and other current assets		Other current liabilities
Derivatives designated as hedging instruments:
Foreign exchange contracts (cash flow hedges)	$	1,017	$	(434)	$	588	$	761
Derivatives not designated as hedging instruments:
Foreign exchange contracts (non-designated hedges)	—		(15)		6		16
Total derivative instruments	$	1,017	$	(449)	$	594	$	777