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Segments - Reconciliation of Net Earnings to Total Company Adjusted EBITDA-Depreciation and Restructuring Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Depreciation and Amortization [Abstract] |  |  |  |
Total Company depreciation and amortization | $ 70.7 | $ 72.0 | $ 206.9 | $ 207.0
Depreciation and amortization, net of adjustments | 63.2 | 64.6 | 184.2 | 187.1
Share-based incentive compensation | 8.5 | 12.1 | 24.4 | 32.3
Total Company restructuring charges | 6.8 | 9.8 | 24.8 | 9.2
Liquibox |  |  |  |
Depreciation and Amortization [Abstract] |  |  |  |
Liquibox intangible amortization | (7.5) | (7.4) | (22.7) | (19.9)
Food |  |  |  |
Depreciation and Amortization [Abstract] |  |  |  |
Total Company restructuring charges | 4.7 | 5.7 | 15.3 | 6.3
Food | Operating Segments |  |  |  |
Depreciation and Amortization [Abstract] |  |  |  |
Total Company depreciation and amortization | 47.9 | 48.1 | 141.1 | 135.8
Protective |  |  |  |
Depreciation and Amortization [Abstract] |  |  |  |
Total Company restructuring charges | 2.1 | 4.1 | 9.5 | 2.9
Protective | Operating Segments |  |  |  |
Depreciation and Amortization [Abstract] |  |  |  |
Total Company depreciation and amortization | $ 22.8 | $ 23.9 | $ 65.8 | $ 71.2

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