XML 123 R101.htm IDEA: XBRL DOCUMENT v3.21.2

Business Segments and Geographic Information - Revenues by Geography (Detail)	12 Months Ended
	Sep. 25, 2021	Sep. 26, 2020	Sep. 28, 2019
Schedule Of Geographical Segments [Line Items]
Revenues	100.00%	100.00%	100.00%
United States
Schedule Of Geographical Segments [Line Items]
Revenues	69.30%	75.80%	75.30%
Europe
Schedule Of Geographical Segments [Line Items]
Revenues	21.30%	15.10%	11.80%
Asia-Pacific
Schedule Of Geographical Segments [Line Items]
Revenues	6.50%	6.00%	8.50%
Rest of world
Schedule Of Geographical Segments [Line Items]
Revenues	2.90%	3.10%	4.40%

X

- Definition

Percentage of revenues.

+ References

No definition available.

+ Details

Name:	holx_PercentageOfRevenues
Namespace Prefix:	holx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Schedule Of Geographical Segments [Line Items]

+ References

No definition available.

+ Details

Name:	holx_ScheduleOfGeographicalSegmentsLineItems
Namespace Prefix:	holx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=srt_EuropeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=srt_AsiaPacificMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=holx_AllOtherCountriesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: