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Discontinued Operations - Narratives (Details) - USD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Oct. 01, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 20, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |  |
Proceeds from sale of businesses |  | $ 317.5 | $ 0.0 | $ 133.5 |
Assets disposed of by sales | Cryobiological products business |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |  |
Proceeds from sale of businesses | $ 317.5 |  |  |  |
Net assets | 320.0 |  |  |  |
Estimated closing date adjustments | $ 2.5 |  |  |  |
Gain on sale of business, net of taxes |  | 224.2 |  |  |
Tax on gain on sale of business |  | 25.2 |  |  |
Interest expense, net |  | $ 7.4 | $ 10.6 |  |
Assets disposed of by sales | BioMedical |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations |  |  |  |  |
Gain on sale of business, net of taxes |  |  |  | 34.3 |
Tax on gain on sale of business |  |  |  | 2.6 |
Interest expense, net |  |  |  | $ 3.2 |
Asset sale price |  |  |  |  | $ 133.5

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