v3.26.1
Document and Entity Information
Apr. 07, 2026
Cover [Abstract]  
Entity Registrant Name HOLOGIC INC
Security Exchange Name NASDAQ
Entity Address, State or Province MA
Amendment Flag false
Entity Central Index Key 0000859737
Current Fiscal Year End Date --09-28
Document Type 8-K
Document Period End Date Apr. 07, 2026
Entity Incorporation State Country Code DE
Entity File Number 001-36214
Entity Tax Identification Number 04-2902449
Entity Address, Address Line One 250 Campus Drive
Entity Address, City or Town Marlborough
Entity Address, Postal Zip Code 01752
City Area Code (508)
Local Phone Number 263-2900
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, par value $0.01 per share
Trading Symbol HOLX
Entity Emerging Growth Company false