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GOODWILL AND OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Sep. 30, 2020
--- | --- | ---
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Goodwill | $ 411,732 | $ 408,063
Less: accumulated amortization | 143,792 | 129,063
Patents |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Gross carrying amount | 2,144 | 2,092
Less: accumulated amortization | 943 | 858
Net | 1,201 | 1,234
Capitalized software |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Gross carrying amount | 91,388 | 84,888
Less: accumulated amortization | 62,111 | 57,302
Net | 29,277 | 27,586
Customer relationships |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Gross carrying amount | 229,385 | 227,178
Less: accumulated amortization | 76,986 | 67,643
Net | 152,399 | 159,535
Other |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Gross carrying amount | 5,358 | 5,156
Less: accumulated amortization | 3,730 | 3,260
Net | 1,628 | 1,896
Trade names |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Trade names | $ 158,841 | $ 156,381

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- Definition Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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- Definition Gross carrying amount before accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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