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Supplemental Disclosures (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Allowance for Doubtful Accounts |  |  |
Beginning balance | $ 1.1 | $ 1.5 | $ 1.7
Bad debt expense | 0.3 | 1.0 | 0.4
Recoveries | (0.1) | 0.0 | (0.3)
Write-offs and discounts | 0.1 | (1.4) | (0.3)
Ending balance | 1.4 | 1.1 | 1.5
Interest paid | 47.4 | 31.4 | 29.1
Income taxes paid | 22.4 | 14.8 | 20.8
Capital spending in accounts payable and accrued liabilities | $ 6.3 | $ 5.2 | $ 5.9

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