Basis of Presentation (Policies)	6 Months Ended
Mar. 29, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The unaudited consolidated financial statements of Hologic, Inc. (“Hologic” or the “Company”) presented herein have been prepared pursuant to the rules of the Securities and Exchange Commission (the “SEC”) for quarterly reports on Form 10-Q and do not include all of the information and disclosures required by U.S. generally accepted accounting principles (“GAAP”) for annual financial statements. These unaudited financial statements should be read in conjunction with the consolidated financial statements and related notes for the fiscal year ended September 28, 2024 included in the Company’s annual report on Form 10-K filed with the SEC on November 27, 2024. In the opinion of management, the unaudited financial statements and notes contain all adjustments (consisting of normal recurring accruals and all other necessary adjustments) considered necessary for a fair presentation of the Company’s financial position, results of operations and cash flows for the periods presented.
Principal of Consolidation	The unaudited consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. The preparation of financial statements in conformity with GAAP requires management to make significant estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from management’s estimates if past experience or other assumptions do not turn out to be substantially accurate. Operating results for the three and six months ended March 29, 2025 are not necessarily indicative of the results to be expected for any other interim period or the entire fiscal year ending September 27, 2025.
Subsequent Events Consideration	Subsequent Events Consideration The Company considers events or transactions that occur after the balance sheet date but prior to the issuance of the financial statements to provide additional evidence for certain estimates or to identify matters that may require additional disclosure. Subsequent events have been evaluated as required. There were no material recognized or unrecognized subsequent events affecting the unaudited consolidated financial statements as of and for the three and six months ended March 29, 2025.

Basis of Presentation (Policies)

6 Months Ended

Mar. 29, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The unaudited consolidated financial statements of Hologic, Inc. (“Hologic” or the “Company”) presented herein have been prepared pursuant to the rules of the Securities and Exchange Commission (the “SEC”) for quarterly reports on Form 10-Q and do not include all of the information and disclosures required by U.S. generally accepted accounting principles (“GAAP”) for annual financial statements. These unaudited financial statements should be read in conjunction with the consolidated financial statements and related notes for the fiscal year ended September 28, 2024 included in the Company’s annual report on Form 10-K filed with the SEC on November 27, 2024. In the opinion of management, the unaudited financial statements and notes contain all adjustments (consisting of normal recurring accruals and all other necessary adjustments) considered necessary for a fair presentation of the Company’s financial position, results of operations and cash flows for the periods presented.

Principal of Consolidation

The unaudited consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.

The preparation of financial statements in conformity with GAAP requires management to make significant estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from management’s estimates if past experience or other assumptions do not turn out to be substantially accurate. Operating results for the three and six months ended March 29, 2025 are not necessarily indicative of the results to be expected for any other interim period or the entire fiscal year ending September 27, 2025.

Subsequent Events Consideration

The Company considers events or transactions that occur after the balance sheet date but prior to the issuance of the financial statements to provide additional evidence for certain estimates or to identify matters that may require additional disclosure. Subsequent events have been evaluated as required. There were no material recognized or unrecognized subsequent events affecting the unaudited consolidated financial statements as of and for the three and six months ended March 29, 2025.