XML 97 R1.htm IDEA: XBRL DOCUMENT v3.20.1
Cover Page - shares
 3 Months Ended 6 Months Ended
Mar. 28, 2020
Mar. 28, 2020
Apr. 23, 2020
Cover [Abstract]      
Title of 12(b) Security   Common Stock, $0.01 par value  
Document Transition Report   false  
Document Quarterly Report   true  
Entity Incorporation, State or Country Code   DE  
Entity Address, Postal Zip Code   01752  
Entity File Number   1-36214  
Document Type   10-Q  
Amendment Flag   false  
Document Period End Date   Mar. 28, 2020  
Document Fiscal Year Focus   2020  
Document Fiscal Period Focus   Q2  
Entity Registrant Name   HOLOGIC, INC  
Entity Central Index Key   0000859737  
Current Fiscal Year End Date   --09-28  
Entity Filer Category   Large Accelerated Filer  
Entity Emerging Growth Company   false  
Entity Small Business   false  
Entity Common Stock, Shares Outstanding     258,205,678
Entity Shell Company false    
Entity Current Reporting Status   Yes  
Entity Interactive Data Current   Yes  
City Area Code   (508)  
Local Phone Number   263-2900  
Entity Tax Identification Number   04-2902449  
Entity Address, Address Line One   250 Campus Drive,  
Entity Address, City or Town   Marlborough,  
Entity Address, State or Province   MA  
Trading Symbol   HOLX  
Security Exchange Name   NASDAQ