Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Aug. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Value of Goodwill

The changes in the carrying amount of goodwill for the years ended August 31, 2021 and 2020 by operating segment are as follows (in thousands):

	IT&S		Other		Total
Balance as of August 31, 2019	$	242,873	$	17,542	$	260,415
Acquisition of HTL Group (Note 4)	11,261		—		11,261
Impact of changes in foreign currency rates	9,403		75		9,478
Balance as of August 31, 2020	263,537		17,617		281,154
Impairment charge	—		(5,656)		(5,656)
Impact of changes in foreign currency rates	1,550		545		2,095
Balance as of August 31, 2021	$	265,087	$	12,506	$	277,593

Gross Carrying Amount and Accumulated Amortization of Intangible Assets

The gross carrying value and accumulated amortization of the Company’s intangible assets are as follows (in thousands):

	Weighted Average Amortization Period (Year)	August 31, 2021						August 31, 2020
		Gross		Accumulated Amortization		Net Book Value		Gross		Accumulated Amortization		Net Book Value
Amortizable intangible assets:
Customer relationships	14	$	142,453	$	114,463	$	27,990	$	141,853	$	106,491	$	35,362
Patents	12	14,492		13,688		804		14,365		13,228		1,137
Trademarks and tradenames	12	3,307		2,391		916		3,277		2,257		1,020
Indefinite lived intangible assets:
Tradenames	N/A	24,835		—		24,835		24,863		—		24,863
		$	185,087	$	130,542	$	54,545	$	184,358	$	121,976	$	62,382

Schedule of Impairment Charge [Table Text Block]