Income Taxes (Tables)	12 Months Ended
Dec. 31, 2021
Income Taxes [Abstract]
Schedule Of Income Before Income Tax, Domestic And Foreign	For the Years Ended December 31, Components of Income before Taxes 2021 2020 2019Domestic$ 327.6 $ 151.1 $ 185.1Foreign 23.3 15.2 14.8Income before taxes$ 350.9 $ 166.3 $ 199.9
Schedule Of Components Of Income Tax Expense Benefit	For the Years Ended December 31, Components of Income Tax Provision 2021 2020 2019Current expense U.S. Federal$ 77.3 $ 38.5 $ 41.9State 18.2 11.4 12.4Foreign 6.5 4.5 4.4Total current expense$ 102.0 $ 54.4 $ 58.7Deferred (benefit) expense U.S. Federal$ (10.9) $ (7.8) $ (3.0)State (3.2) (2.3) (0.8)Foreign — (0.1) 0.1Total deferred benefit$ (14.1) $ (10.2) $ (3.7)Total income tax provision$ 87.9 $ 44.2 $ 55.0
Schedule Of Effective Income Tax Rate Reconciliation	For the Years Ended December 31, 2021 2020 2019 Statutory U.S. federal income tax rate 21.0% 21.0% 21.0%State and local income taxes, net of federal benefit 3.3 4.3 4.5 Nondeductible meals and entertainment 0.1 0.5 1.4 Other, net 0.6 0.8 0.6 Effective tax rate25.0% 26.6% 27.5%
Schedule Of Deferred Tax Assets And Liabilities	Assets (Liabilities) 2021 2020Pension$ 32.8 $ 47.2Operating lease liabilities 34.4 31.3Postretirement benefits 19.3 20.8Inventory 25.0 12.3Other deferred tax assets 5.8 5.2Payroll accruals 7.2 7.6Bad debt reserves 0.7 0.8Subtotal 125.2 125.2Less: valuation allowances (0.5) (0.6)Deferred tax assets 124.7 124.6Fixed assets (38.8) (34.5)Operating lease right-of-use assets (32.3) (29.1)Other deferred tax liabilities (9.1) (4.9)Computer software (2.4) (2.4)Deferred tax liabilities (82.6) (70.9)Net deferred tax assets$ 42.1 $ 53.7 Deferred income taxes included in non-current assets (liabilities) at December 31 were: 2021 2020Deferred tax assets included in other non-current assets$ 45.2 $ 54.1Deferred tax liabilities included in other non-current liabilities (3.1) (0.4)Total$ 42.1 $ 53.7
Summary Of Operating Loss Carryforwards	Operating loss and tax credit carryforwards included in net deferred tax assets at December 31 were: 2021 2020U.S. Federal(A)$ 0.5 $ 0.5State(A) 0.2 0.3 (A)Expire between 2024 and 2030
Schedule Of Unrecognized Tax Benefits Roll Forward	2021 2020 2019Balance at January 1,$ 1.7 $ 1.9 $ 2.6Additions based on tax positions related to current year — 0.2 0.2Reductions for tax positions of prior years (0.7) (0.1) (0.1)Settlements — (0.3) (0.8)Balance at December 31,$ 1.0 $ 1.7 $ 1.9

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure of the change in unrecognized tax benefits.

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