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SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Movement in Valuation Allowances and Reserves |  |  |
Deferred tax asset valuation allowances | $ 5.4 | $ 21.6 |
Cryobiological products business |  |  |
Movement in Valuation Allowances and Reserves |  |  |
Deferred tax asset valuation allowances |  |  | $ 32.4
Allowance for doubtful accounts |  |  |
Movement in Valuation Allowances and Reserves |  |  |
Balance at beginning of period | 6.0 | 8.4 | 8.5
Additions - Charged to costs and expenses | 0.5 | 1.2 | 0.4
Charged to other accounts | 0.0 | 0.0 | 0.0
Deductions | (2.6) | (1.1) | 0.0
Translations | 0.6 | (2.5) | (0.5)
Balance at end of period | 4.5 | 6.0 | 8.4
Allowance for excess and obsolete inventory |  |  |
Movement in Valuation Allowances and Reserves |  |  |
Balance at beginning of period | 10.9 | 9.7 | 10.6
Additions - Charged to costs and expenses | 1.8 | 11.4 | 0.4
Charged to other accounts | 0.0 | 0.0 | 0.0
Deductions | (4.1) | (9.8) | (0.5)
Translations | (0.4) | (0.4) | (0.8)
Balance at end of period | 8.2 | 10.9 | 9.7
Deferred tax assets valuation allowance |  |  |
Movement in Valuation Allowances and Reserves |  |  |
Balance at beginning of period | 21.6 | 33.9 | 68.2
Additions - Charged to costs and expenses | 0.4 | 0.3 | 0.3
Charged to other accounts | 0.0 | 0.0 | 0.0
Deductions | (14.8) | (12.7) | (36.6)
Translations | (1.8) | 0.1 | 2.0
Balance at end of period | $ 5.4 | $ 21.6 | $ 33.9

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