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GOODWILL AND INTANGIBLE ASSETS (Tables)
9 Months Ended
Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets Arising from Business Acquisitions
Finite-lived intangible assets are amortized using the straight-line method over the period in which these assets contribute to our cash flows and are evaluated for impairment in accordance with our policies for valuation of long-lived assets. All of our intangible assets are within our North America Solutions reportable segment and consist of the following:
June 30, 2023September 30, 2022
(in thousands) Weighted Average Estimated Useful LivesGross Carrying AmountAccumulated AmortizationNetGross Carrying AmountAccumulated AmortizationNet
Finite-lived intangible asset:
Developed technology15 years$89,096 $32,603 $56,493 $89,096 $28,137 $60,959 
Intellectual property13 years2,000 463 1,537 2,000 328 1,672 
Trade name20 years5,865 1,712 4,153 5,865 1,475 4,390 
Customer relationships5 years4,000 4,000 — 4,000 3,867 133 
$100,961 $38,778 $62,183 $100,961 $33,807 $67,154