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Business Combination - Purchase Price by Exchange Ratio (Details) - Ortho - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | May 27, 2022 | May 26, 2022
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Business Acquisition [Line Items] |  |
Ortho Exchange Ratio (in usd per share) |  | $ 0.1055
Value per Quidel share as of May 26, 2022 (in usd per share) |  | $ 99.60
Fair value of stock consideration |  | $ 2,495.5
Fair value of replacement equity awards |  | 47.9
Cash consideration |  | 1,747.7
Total purchase consideration |  | $ 4,291.1
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, After Combination | $ 46.6 |
Cash paid to former Ortho stockholders per Ortho Share (in usd per share) |  | $ 7.14
Business Acquisition, Number of Common Stock Shares Acquired |  | 237,500
Business Acquisition, Number of Vested Stock Options Acquired |  | 7,300
Ortho |  |
Business Acquisition [Line Items] |  |
Total Ortho shares subject to exchange (in shares) |  | 237,487
Ortho Exchange Ratio (in usd per share) |  | $ 0.1055
QuidelOrtho |  |
Business Acquisition [Line Items] |  |
QuidelOrtho shares issued (in shares) |  | 25,055

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