Intangible Assets and Long-Lived Assets (Tables)

12 Months Ended

Jul. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

Other intangible assets as of July 31, 2021 and 2020, consisted of the following: 

	July 31, 2021							July 31, 2020
	Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization		Net Book Value
Amortized other intangible assets:
Tradenames	3	$	1,821	$	(356)	$	1,465	3	$	663	$	(55)	$	608
Customer relationships	9	110,950		(39,069)		71,881		9	44,722		(32,615)		12,107
Technology	5	9,578		(335)		9,243		N/A	—		—		—
Unamortized other intangible assets:
Tradenames	N/A	9,745		—		9,745		N/A	9,619		—		9,619
Total		$	132,094	$	(39,760)	$	92,334		$	55,004	$	(32,670)	$	22,334