XML 76 R65.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Business Segments and Geographic Information - Revenues by Geography (Detail) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jul. 01, 2017 | Jun. 30, 2018 | Jul. 01, 2017
Schedule Of Geographical Segments [Line Items] |  |  |  |
Revenues | 100.00% | 100.00% | 100.00% | 100.00%
United States |  |  |  |
Schedule Of Geographical Segments [Line Items] |  |  |  |
Revenues | 74.90% | 76.70% | 75.00% | 78.10%
Europe |  |  |  |
Schedule Of Geographical Segments [Line Items] |  |  |  |
Revenues | 11.40% | 9.40% | 11.80% | 9.90%
Asia-Pacific |  |  |  |
Schedule Of Geographical Segments [Line Items] |  |  |  |
Revenues | 9.00% | 8.70% | 8.50% | 7.90%
Rest of World |  |  |  |
Schedule Of Geographical Segments [Line Items] |  |  |  |
Revenues | 4.70% | 5.20% | 4.70% | 4.10%

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: | us-gaap_StatementGeographicalAxis=country_US
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: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_AsiaPacificMember
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: |