XML 131 R63.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Property and Equipment - Summary of Estimated Service Lives of Property and Equipment (Detail) | 12 Months Ended
--- | ---
Dec. 28, 2013
Minimum [Member] | Building And Improvements [Member] |
Property, Plant and Equipment [Line Items] |
Estimate life, years | 3 years
Minimum [Member] | Machinery, Equipment And Computer Software [Member] |
Property, Plant and Equipment [Line Items] |
Estimate life, years | 2 years
Maximum [Member] | Building And Improvements [Member] |
Property, Plant and Equipment [Line Items] |
Estimate life, years | 50 years
Maximum [Member] | Machinery, Equipment And Computer Software [Member] |
Property, Plant and Equipment [Line Items] |
Estimate life, years | 15 years

X
- Definition Estimated Service Lives Of Property And Equipment + References No definition available. + Details
Name: | sna_EstimatedServiceLivesOfPropertyAndEquipment
Namespace Prefix: | sna_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration