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Business and Summary of Significant Accounting Policies - Self-Insured Medical, Property and Casualty Reserves (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Accounting Policies [Abstract] |  |
Estimated liability on incurred worker’s compensation and general liability claims | $ 24.0 | $ 24.4

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- Definition General Liability And Workers' Compensation Liability + References No definition available. + Details
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- References No definition available. + Details
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