v2.3.0.11

Commitments And Contingencies (Details) (USD $)	6 Months Ended	9 Months Ended		1 Months Ended
	Mar. 27, 2010	Jun. 25, 2011	Jun. 26, 2010	Oct. 31, 2010 Adiana Permanent Contraception System [Member]	Jun. 25, 2011 Adiana Permanent Contraception System [Member]	Jun. 25, 2011 TCT International Co [Member]	Jun. 25, 2011 Sentinelle Medical And Interlace [Member]
Milestone payments include potential contingent payment					$ 155,000,000
First payment on contingent consideration				19,700,000
Accrued contingent consideration obligation					26,900,000	2,100,000
Contingent consideration obligation, fair value							108,300,000
Litigation-related settlement charges	$ 12,500,000	$ 450,000	$ 12,500,000

X

- Definition

Represents the amount of contingent consideration earned and accrued as of the balance sheet date, net of any indemnification holdbacks.

+ Details

Name:	holx_AccruedContingentConsideration
Namespace Prefix:	holx
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value of potential payments under the contingent consideration arrangement including cash and shares.

+ Details

Name:	holx_BusinessAcquisitionContingentConsiderationFairValue
Namespace Prefix:	holx
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents the cash payment of contingent consideration to the former shareholders of the acquired company.

+ Details

Name:	holx_FirstPaymentOnContingentConsideration
Namespace Prefix:	holx
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of potential cash payments that could result from the contingent consideration arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph f
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) estimated litigation liability extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349

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