XML 83 R41.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Fair Value Measurements - Estimated Fair Values of Convertible Notes (Detail) (USD $) In Thousands, unless otherwise specified | Mar. 29, 2014 | Sep. 28, 2013
--- | --- | ---
Estimated Fair Value Of Financial Instruments [Line Items] |  |
Estimated fair values of debt instruments | $ 1,401,500 | $ 1,820,300
2007 Notes [Member] |  |
Estimated Fair Value Of Financial Instruments [Line Items] |  |
Estimated fair values of debt instruments |  | 405,000
2010 Notes [Member] |  |
Estimated Fair Value Of Financial Instruments [Line Items] |  |
Estimated fair values of debt instruments | 507,800 | 510,800
2012 Notes [Member] |  |
Estimated Fair Value Of Financial Instruments [Line Items] |  |
Estimated fair values of debt instruments | 502,800 | 518,800
2013 Notes [Member] |  |
Estimated Fair Value Of Financial Instruments [Line Items] |  |
Estimated fair values of debt instruments | $ 390,900 | $ 385,700

X
- Details
Name: | holx_EstimatedFairValueOfFinancialInstrumentsLineItems
Namespace Prefix: | holx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Longterm debt fair value disclosure. + References No definition available. + Details
Name: | holx_LongtermDebtFairValueDisclosure
Namespace Prefix: | holx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant