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Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended |
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Dec. 31, 2023 | Dec. 31, 2022
Accounting Policies [Abstract] |  |
Deferred policy acquisition cost amortization period | 1 year |
Property, plant and equipment, net | $ 1,300.0 | $ 1,200.0
Inventory, net | $ 617.2 | $ 639.6
Tax benefit greater than 50% | 50.00% |
Insurance premiums revenue recognition period | 1 year |

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