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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Oct. 29, 2013	Sep. 04, 2012
Commitments and Contingencies Disclosure [Abstract]
Assessed damages		$ 4.0
Additional Payments	$ 14.7

X

- Definition

Amount assessed in damages.

+ References

No definition available.

+ Details

Name:	holx_AmountAssessedInDamages
Namespace Prefix:	holx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Loss contingency damages sought related to additional contingent consideration under merger and acquisition agreement.

+ References

No definition available.

+ Details

Name:	holx_LossContingencyDamagesSoughtRelatedToAdditionalContingentConsiderationUnderMergerAndAcquisitionAgreement
Namespace Prefix:	holx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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