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Employee Benefits - Summary of SERPs and Defined Benefit Plans and Deferred Compensation Plan (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Employee Benefits |  |  |
Balances in Deferred Compensation Plan | $ 40,900,000 | $ 36,200,000 |
Value of assets for funding future payouts under the deferred compensation plan | 40,900,000 | 33,900,000 |
Contributions to Multiemployer Plans | 4,800,000 | 5,300,000 | $ 5,700,000
Amounts recognized in the statement of financial position |  |  |
Noncurrent liabilities | (81,000,000.0) | (95,800,000) |
Weighted average assumptions to determine benefit obligations |  |  |
Deferred Compensation Plan expected employer contributions during 2022 | 2,500,000 |  |
Supplemental Executive Retirement Plans |  |  |
Change in benefit obligation |  |  |
Benefit obligation at beginning of year | 37,500,000 | 49,800,000 |
Service cost | 1,000,000.0 | 900,000 | 900,000
Interest cost | 600,000 | 1,000,000.0 | 1,400,000
Actuarial loss (gain) | (1,800,000) | 3,100,000 |
Benefits paid | (900,000) | (900,000) |
Plan settlements |  | (16,400,000) |
Benefit obligation at end of year | 36,400,000 | 37,500,000 | 49,800,000
Funded status |  |  |
Funded status of the plans | (36,400,000) | (37,500,000) |
Items not yet recognized as component of net periodic pension expense |  |  |
Unrecognized net actuarial losses | 10,500,000 | 14,100,000 |
Accumulated other comprehensive loss | 10,500,000 | 14,100,000 |
Amounts recognized in the statement of financial position |  |  |
Current liabilities | (12,900,000) | (900,000) |
Noncurrent liabilities | (23,500,000) | (36,600,000) |
Accumulated other comprehensive loss | 10,500,000 | 14,100,000 |
Net amount recognized | (25,900,000) | (23,400,000) |
Accumulated benefit obligation | 32,900,000 | 31,200,000 |
Components of net periodic benefit cost |  |  |
Service cost | 1,000,000.0 | 900,000 | 900,000
Interest cost | 600,000 | 1,000,000.0 | 1,400,000
Settlement loss |  | 6,700,000 |
Amortization of net loss | 1,800,000 | 1,900,000 | 1,000,000.0
Net periodic benefit cost | $ 3,400,000 | $ 10,500,000 | $ 3,300,000
Weighted average assumptions to determine net cost |  |  |
Discount rate (as a percent) | 1.64% | 2.63% | 3.81%
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) | 2.16% | 1.60% |
Rate of compensation increase (as a percent) | 6.00% | 6.00% |
Expected employer contributions during 2022 | $ 12,900,000 |  |
Defined Benefit Plans |  |  |
Change in benefit obligation |  |  |
Benefit obligation at beginning of year | 76,300,000 | $ 116,200,000 |
Service cost | 2,200,000 | 2,100,000 | $ 1,600,000
Interest cost | 1,800,000 | 2,600,000 | 3,800,000
Actuarial loss (gain) | (3,600,000) | 7,900,000 |
Benefits paid | (2,200,000) | (3,300,000) |
Plan settlements |  | (49,200,000) |
Benefit obligation at end of year | 74,500,000 | 76,300,000 | 116,200,000
Change in plan assets |  |  |
Fair value of plan assets at beginning of year | 63,900,000 | 107,100,000 |
Actual return on plan assets | 9,200,000 | 10,500,000 |
Benefits paid | (2,200,000) | (53,000,000.0) |
Other |  | (700,000) |
Fair value of plan assets at end of year | 70,900,000 | 63,900,000 | 107,100,000
Funded status |  |  |
Funded status of the plans | (3,600,000) | (12,400,000) |
Items not yet recognized as component of net periodic pension expense |  |  |
Unrecognized net actuarial losses | 5,600,000 | 15,200,000 |
Unamortized prior service cost | 3,400,000 | 4,000,000.0 |
Accumulated other comprehensive loss | 9,000,000.0 | 19,200,000 |
Amounts recognized in the statement of financial position |  |  |
Noncurrent liabilities | (3,600,000) | (12,400,000) |
Accumulated other comprehensive loss | 9,000,000.0 | 19,200,000 |
Net amount recognized | 5,400,000 | 6,800,000 |
Information for defined benefit plans with an accumulated benefit obligation and projected benefit obligation in excess of plan assets |  |  |
Accumulated benefit obligation | 74,500,000 | 76,300,000 |
Projected benefit obligation | 74,500,000 | 76,300,000 |
Fair value of plan assets | 70,900,000 | 63,900,000 |
Components of net periodic benefit cost |  |  |
Service cost | 2,200,000 | 2,100,000 | 1,600,000
Interest cost | 1,800,000 | 2,600,000 | 3,800,000
Expected return on plan assets | (3,900,000) | (4,400,000) | (5,600,000)
Settlement loss |  | 12,700,000 |
Prior service (credit) cost | 600,000 | 600,000 | 400,000
Amortization of net loss | 800,000 | 1,100,000 | 1,300,000
Net periodic benefit cost | $ 1,500,000 | $ 14,700,000 | $ 1,500,000
Weighted average assumptions to determine net cost |  |  |
Discount rate (as a percent) | 2.40% | 2.85% | 4.06%
Expected long-term rate of return on plan assets (as a percent) | 6.25% | 6.25% | 6.09%
Weighted average assumptions to determine benefit obligations |  |  |
Discount rate (as a percent) | 2.70% | 2.40% |
Expected long-term rate of return on plan assets (as a percent) | 6.25% | 6.25% |
Expected employer contributions during 2022 | $ 0 |  |
Warehouse, delivery, selling, general and administrative expense | Supplemental Executive Retirement Plans |  |  |
Components of net periodic benefit cost |  |  |
Net periodic benefit cost | 1,000,000.0 | $ 900,000 | $ 900,000
Warehouse, delivery, selling, general and administrative expense | Defined Benefit Plans |  |  |
Components of net periodic benefit cost |  |  |
Net periodic benefit cost | 2,200,000 | 2,100,000 | 1,600,000
Other (income) expense, net | Supplemental Executive Retirement Plans |  |  |
Components of net periodic benefit cost |  |  |
Net periodic benefit cost | 2,400,000 | 9,600,000 | 2,400,000
Other (income) expense, net | Defined Benefit Plans |  |  |
Components of net periodic benefit cost |  |  |
Net periodic benefit cost | $ (700,000) | $ 12,600,000 | $ (100,000)

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