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BUSINESS COMBINATIONS - Schedule of Intangible Assets Acquired (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
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Jun. 30, 2023 | Sep. 30, 2022
Customer relationships |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |
Amortization Period (in years) | 4 years 8 months 12 days | 4 years 8 months 12 days
Covenants not to compete |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |
Amortization Period (in years) | 3 years | 3 years
HooYu |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |
Total intangible assets acquired | $ 73,100 |
HooYu | Completed technologies |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |
Amortization Period (in years) | 7 years |
Total intangible assets acquired | $ 61,400 |
HooYu | Customer relationships |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |
Amortization Period (in years) | 5 years |
Total intangible assets acquired | $ 5,000 |
HooYu | Trade name |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |
Amortization Period (in years) | 5 years |
Total intangible assets acquired | $ 6,100 |
HooYu | Covenants not to compete |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |
Amortization Period (in years) | 3 years |
Total intangible assets acquired | $ 600 |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-1 + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-1 + Details
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