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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | Dec. 31, 2023 | Sep. 30, 2023
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Statement of Financial Position [Abstract] |  |
Accounts Receivable, Allowance for Credit Loss, Current | $ 7.5 | $ 7.3
Preferred Stock, Shares Authorized | 60,000,000 | 60,000,000
Preferred Stock, Shares Outstanding | 0 | 0
Preferred Stock, Par or Stated Value Per Share | $ 0.01 | $ 0.01
Common Stock, Par or Stated Value Per Share | $ 0.01 | $ 0.01
Series A common stock, shares authorized | 600,000,000 | 600,000,000
Common Stock, Shares, Outstanding | 156,112,060 | 155,871,932

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