Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Apr. 02, 2023
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation The accompanying unaudited Consolidated Financial Statements of QuidelOrtho Corporation and its subsidiaries (the “Company” or “QuidelOrtho”) have been prepared in accordance with generally accepted accounting principles in the U.S. (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation (consisting of normal recurring accruals) have been included. The information at April 2, 2023, and for the three months ended April 2, 2023 and April 3, 2022, is unaudited. For further information, refer to the Company’s Consolidated Financial Statements and notes thereto for the fiscal year ended January 1, 2023 included in QuidelOrtho’s 2022 Annual Report on Form 10-K. Operating results for any quarter are historically seasonal in nature and are not necessarily indicative of the results expected for the full year. The Company follows the concept of a fiscal year that ends on the Sunday nearest to the end of the month of December, and fiscal quarters that end on the Sunday nearest to the end of the months of March, June and September. For 2023 and 2022, the Company’s fiscal year will end or has ended on December 31, 2023 and January 1, 2023, respectively. For 2023 and 2022, the Company’s first quarter ended on April 2, 2023 and April 3, 2022, respectively. The three months ended April 2, 2023 and April 3, 2022 each included 13 weeks. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the related disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Reclassifications Certain prior period amounts were reclassified to conform to the current period presentation, including the separate presentation of Amortization of intangible assets and Interest expense, net, and the combination of Selling, marketing and administrative expense. Cost of sales, excluding amortization of intangibles for the three months ended April 3, 2022 excludes $2.0 million of intangibles amortization expense, formerly included in Cost of sales, which has been reclassified to Amortization of intangible assets. Selling, marketing and administrative expense for the three months ended April 3, 2022 excludes $5.1 million of intangibles amortization expense, formerly included in Sales and marketing expense, which has been reclassified to Amortization of intangible assets. The reclassifications did not have an impact on net assets, Operating income, Net income, Basic or Diluted earnings per share, or cash flows. Recent Accounting Pronouncements There have been no accounting pronouncements issued or adopted during the three months ended April 2, 2023 that are expected to have a material impact on the Company’s financial statements.