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Employee Benefits - Summary of SERPs and Defined Benefit Plans and Deferred Compensation Plan (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2023
Employee Benefits |  |  |  |
Balances in Deferred Compensation Plan | $ 41.2 | $ 40.9 |  |
Value of assets for funding future payouts under the deferred compensation plan | 41.2 | 40.9 |  |
Contributions to Multiemployer Plans | 5.4 | 4.8 | $ 5.3 |
Weighted average assumptions to determine benefit obligations |  |  |  |
Deferred Compensation Plan expected employer contributions during 2023 |  |  |  | $ 2.0
Supplemental Executive Retirement Plans |  |  |  |
Employee Benefits |  |  |  |
Settlement losses related to payment of benefits | 2.3 |  | 6.7 |
Change in benefit obligation |  |  |  |
Benefit obligation at beginning of year | 36.4 | 37.5 |  |
Service cost | 0.4 | 1.0 | 0.9 |
Interest cost | 0.7 | 0.6 | 1.0 |
Actuarial loss (gain) | (5.6) | (1.8) |  |
Benefits paid | (0.8) | (0.9) |  |
Plan settlements | (12.3) |  |  |
Benefit obligation at end of year | 18.8 | 36.4 | 37.5 |
Funded status |  |  |  |
Funded status of the plans | (18.8) | (36.4) |  |
Items not yet recognized as component of net periodic pension expense |  |  |  |
Unrecognized net actuarial losses | 1.9 | 10.5 |  |
Accumulated other comprehensive loss | 1.9 | 10.5 |  |
Amounts recognized in the statement of financial position |  |  |  |
Current liabilities | (0.8) | (12.9) |  |
Noncurrent liabilities | (18.0) | (23.5) |  |
Accumulated other comprehensive loss | 1.9 | 10.5 |  |
Net amount recognized | (16.9) | (25.9) |  |
Accumulated benefit obligation | 17.1 | 32.9 |  |
Components of net periodic benefit cost |  |  |  |
Service cost | 0.4 | 1.0 | 0.9 |
Interest cost | 0.7 | 0.6 | 1.0 |
Settlement loss | 2.3 |  | 6.7 |
Amortization of net loss | 0.6 | 1.8 | 1.9 |
Net periodic benefit cost | $ 4.0 | $ 3.4 | $ 10.5 |
Weighted average assumptions to determine net cost |  |  |  |
Discount rate (as a percent) | 2.17% | 1.64% | 2.63% |
Rate of compensation increase (as a percent) | 6.00% | 6.00% | 6.00% |
Weighted average assumptions to determine benefit obligations |  |  |  |
Discount rate (as a percent) | 4.51% | 2.16% |  |
Rate of compensation increase (as a percent) | 6.00% | 6.00% |  |
Expected employer contributions during 2023 | $ 0.8 |  |  |
Defined Benefit Plans |  |  |  |
Change in benefit obligation |  |  |  |
Benefit obligation at beginning of year | 74.5 | $ 76.3 |  |
Service cost | 2.0 | 2.2 | $ 2.1 |
Interest cost | 2.0 | 1.8 | 2.6 |
Actuarial loss (gain) | (21.0) | (3.6) |  |
Benefits paid | (2.5) | (2.2) |  |
Benefit obligation at end of year | 55.0 | 74.5 | 76.3 |
Change in plan assets |  |  |  |
Fair value of plan assets at beginning of year | 70.9 | 63.9 |  |
Actual return on plan assets | (11.7) | 9.2 |  |
Benefits paid | (2.5) | (2.2) |  |
Fair value of plan assets at end of year | 56.7 | 70.9 | 63.9 |
Funded status |  |  |  |
Funded status of the plans | 1.7 | (3.6) |  |
Items not yet recognized as component of net periodic pension expense |  |  |  |
Unrecognized net actuarial losses | 0.5 | 5.6 |  |
Unamortized prior service cost | 2.8 | 3.4 |  |
Accumulated other comprehensive loss | 3.3 | 9.0 |  |
Amounts recognized in the statement of financial position |  |  |  |
Noncurrent assets | 1.7 |  |  |
Noncurrent liabilities |  | (3.6) |  |
Accumulated other comprehensive loss | 3.3 | 9.0 |  |
Net amount recognized | 5.0 | 5.4 |  |
Information for defined benefit plans with an accumulated benefit obligation and projected benefit obligation in excess of plan assets |  |  |  |
Accumulated benefit obligation |  | 74.5 |  |
Fair value of plan assets |  | 70.9 |  |
Components of net periodic benefit cost |  |  |  |
Service cost | 2.0 | 2.2 | 2.1 |
Interest cost | 2.0 | 1.8 | 2.6 |
Expected return on plan assets | (4.2) | (3.9) | (4.4) |
Settlement loss |  |  | 12.7 |
Prior service (credit) cost | 0.5 | 0.6 | 0.6 |
Amortization of net loss |  | 0.8 | 1.1 |
Net periodic benefit cost | $ 0.3 | $ 1.5 | $ 14.7 |
Weighted average assumptions to determine net cost |  |  |  |
Discount rate (as a percent) | 2.70% | 2.40% | 2.85% |
Expected long-term rate of return on plan assets (as a percent) | 6.00% | 6.25% | 6.25% |
Weighted average assumptions to determine benefit obligations |  |  |  |
Discount rate (as a percent) | 5.00% | 2.70% |  |
Expected long-term rate of return on plan assets (as a percent) | 6.00% | 6.25% |  |
Expected employer contributions during 2023 | $ 0.0 |  |  |
Warehouse, delivery, selling, general and administrative expense | Supplemental Executive Retirement Plans |  |  |  |
Components of net periodic benefit cost |  |  |  |
Net periodic benefit cost | 0.4 | $ 1.0 | $ 0.9 |
Warehouse, delivery, selling, general and administrative expense | Defined Benefit Plans |  |  |  |
Components of net periodic benefit cost |  |  |  |
Net periodic benefit cost | 2.0 | 2.2 | 2.1 |
Other (income) expense, net | Supplemental Executive Retirement Plans |  |  |  |
Components of net periodic benefit cost |  |  |  |
Net periodic benefit cost | 3.6 | 2.4 | 9.6 |
Other (income) expense, net | Defined Benefit Plans |  |  |  |
Components of net periodic benefit cost |  |  |  |
Net periodic benefit cost | $ (1.7) | $ (0.7) | $ 12.6 |

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- Definition Amount of payment, which decreases benefit obligation of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. Excludes decreases to benefit obligation for remeasurement due to settlement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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