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GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible assets gross carrying amounts and accumulated amortization (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Sep. 30, 2022
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GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Goodwill | $ 505,194 | $ 492,709
Less: accumulated amortization | 189,819 | 175,928
Trade names |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Trade names | 161,531 | 160,024
Customer relationships |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Gross carrying amount | 298,005 | 287,447
Less: accumulated amortization | 105,013 | 96,921
Net | 192,992 | 190,526
Capitalized software |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Gross carrying amount | 115,191 | 106,583
Less: accumulated amortization | 74,787 | 70,476
Net | 40,404 | 36,107
Patents |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Gross carrying amount | 2,425 | 2,353
Less: accumulated amortization | 1,154 | 1,091
Net | 1,271 | 1,262
Other |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Gross carrying amount | 14,298 | 13,985
Less: accumulated amortization | 8,779 | 7,440
Net | $ 5,519 | $ 6,545

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