Annual report pursuant to Section 13 and 15(d)

Transactions with Related Parties - Additional Information (Detail)

v2.4.0.8
Transactions with Related Parties - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 29, 2012
Bio Plus, Inc. [Member]
     
Related Party Transaction [Line Items]      
Purchases products from related party $ 0 $ 1.0 $ 1.0
Contract Packaging, Inc. [Member]
     
Related Party Transaction [Line Items]      
Percentage of shares held by CPI in Tech Pac 20.00% 20.00% 20.00%
Amount due to related party 0.6 0.5  
Contract Packaging, Inc. [Member] | Tech Pac [Member]
     
Related Party Transaction [Line Items]      
Purchases products from related party $ 30.8 $ 32.5 $ 39.3