Fair Value Measurements (Tables)

6 Months Ended

Jan. 31, 2020

Text Block [Abstract]

Financial Assets and Liabilities Accounted for at Fair Value on a Recurring Basis

The following table summarizes the Company's financial assets and liabilities that were accounted for at fair value on a recurring basis at January 31, 2020 and July 31, 2019, according to the valuation techniques the Company used to determine their fair values.

	January 31, 2020		July 31, 2019		Fair Value Hierarchy
Assets:
Trading securities	$	18,143	$	15,744	Level 1
Foreign exchange contracts	740		474		Level 2
Liabilities:
Foreign exchange contracts	33		5		Level 2

Schedule of Debt [Table Text Block]

	January 31, 2020				July 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
Current maturities on long-term debt	$	49,627	$	50,127	$	50,166	$	51,566