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Variable Interest Entities (Schedule of Net Income Attributable to Noncontrolling Interest) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Attributable to noncontrolling [Line Items] |  |  |
Net income (loss) attributable to noncontrolling interest | $ (12.3) | $ 3.9 | $ 3.4

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