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DEBT - Senior Notes - 5.250% (Details) - Senior notes - 5.250% Senior Notes - USD ($) $ in Millions | Dec. 15, 2016 | Apr. 02, 2022 | Sep. 30, 2021 | Apr. 03, 2021
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Debt Instrument [Line Items] |  |  |  |
Interest rate of debt (percentage) | 5.25% | 5.25% | 5.25% | 5.25%
Proceeds from issuance of unsecured debt | $ 250.0 |  |  |

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