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Note 12 - Goodwill and Intangible Assets - Estimated Amortization Expense (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
2021 $ 169.9  
2022 156.9  
2023 144.3  
2024 139.4  
2025 114.7  
2026 and thereafter 659.6  
Total $ 1,384.8 $ 1,398.9