XML 13 R54.htm IDEA: XBRL DOCUMENT v2.4.1.9

Business Segments and Geographic Information - Revenues by Geography (Detail)	3 Months Ended
	Dec. 27, 2014	Dec. 28, 2013
Schedule Of Geographical Segments [Line Items]
Revenues	100.00%holx_PercentageOfRevenues	100.00%holx_PercentageOfRevenues
United States
Schedule Of Geographical Segments [Line Items]
Revenues	74.00%holx_PercentageOfRevenues / us-gaap_StatementGeographicalAxis = country_US	75.00%holx_PercentageOfRevenues / us-gaap_StatementGeographicalAxis = country_US
Europe
Schedule Of Geographical Segments [Line Items]
Revenues	13.00%holx_PercentageOfRevenues / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember	14.00%holx_PercentageOfRevenues / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember
Asia-Pacific
Schedule Of Geographical Segments [Line Items]
Revenues	9.00%holx_PercentageOfRevenues / us-gaap_StatementGeographicalAxis = us-gaap_AsiaPacificMember	7.00%holx_PercentageOfRevenues / us-gaap_StatementGeographicalAxis = us-gaap_AsiaPacificMember
All others
Schedule Of Geographical Segments [Line Items]
Revenues	4.00%holx_PercentageOfRevenues / us-gaap_StatementGeographicalAxis = holx_AllOtherCountriesMember	4.00%holx_PercentageOfRevenues / us-gaap_StatementGeographicalAxis = holx_AllOtherCountriesMember

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

- Details

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

X

- Details

Name:	us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=holx_AllOtherCountriesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=us-gaap_AsiaPacificMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementGeographicalAxis=us-gaap_EuropeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: