GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($) |
3 Months Ended | 6 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
Sep. 30, 2020 |
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| Goodwill and Intangible Assets Disclosure [Abstract] | |||||
| Impairment of intangible assets, indefinite-lived | $ 0 | ||||
| Amortization expense related to purchased intangible assets | $ 40,100,000 | $ 34,800,000 | $ 79,500,000 | $ 69,800,000 | |
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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