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Leases - Additional Lease Information (Details)	3 Months Ended
	Mar. 27, 2021
Leases [Abstract]
Lease revenue as a percentage of total (percentage)	0.05

X

- Definition

Lease Revenue, Percentage Of Total Revenue

+ References

No definition available.

+ Details

Name:	holx_LeaseRevenuePercentageOfTotalRevenue
Namespace Prefix:	holx_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_LeasesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration