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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)
 12 Months Ended
Aug. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in the carrying amount of goodwill The following table details the changes in the carrying amount of goodwill by reportable segment:
(in thousands)North AmericaEuropeConsolidated
Goodwill, gross
Balance at September 1, 2019$71,941 $2,384 $74,325 
Foreign currency translation— 195 195 
Balance at August 31, 202071,941 2,579 74,520 
Acquisitions— 1,909 1,909 
Foreign currency translation— (98)(98)
Balance at August 31, 202171,941 4,390 76,331 
Accumulated impairment
Balance at September 1, 2019(10,036)(151)(10,187)
Foreign currency translation— (12)(12)
Balance at August 31, 2020(10,036)(163)(10,199)
Foreign currency translation— 5 5 
Balance at August 31, 2021(10,036)(158)(10,194)
Goodwill, net
Balance at September 1, 201961,905 2,233 64,138 
Foreign currency translation— 183 183 
Balance at August 31, 202061,905 2,416 64,321 
Acquisitions— 1,909 1,909 
Foreign currency translation— (93)(93)
Balance at August 31, 2021$61,905 $4,232 $66,137 
Intangible assets subject to amortization
The following intangible assets subject to amortization are included in other noncurrent assets on the Company's consolidated balance sheets:
 August 31, 2021August 31, 2020
(in thousands)Gross
Carrying Amount		Accumulated AmortizationNetGross
Carrying Amount		Accumulated AmortizationNet
Patents$7,203 $3,621 $3,582 $7,203 $2,647 $4,556 
Customer base6,079 5,629 450 6,111 4,900 1,211 
Perpetual lease rights4,395 860 3,535 4,766 866 3,900 
Non-compete agreements3,050 778 2,272 3,050 422 2,628 
Brand name838 585 253 838 501 337 
Other101 92 9 101 85 16 
Total$21,666 $11,565 $10,101 $22,069 $9,421 $12,648 
Estimated future amortization expense of intangible assets Estimated amounts of amortization expense for the next five years are as follows:
Year Ended August 31,(in thousands)
2022$1,928 
20231,473 
20241,436 
20251,078 
2026153