Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Summary of Restricted Stock Award Activity (Detail)

v2.4.0.8
Stock-Based Compensation - Summary of Restricted Stock Award Activity (Detail) (Restricted Stock Awards [Member], USD $)
12 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 29, 2012
Restricted Stock Awards [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Beginning Balance, Nonvested, Number of Shares 894,000 785,000 804,000
Granted, Number of Shares 1,021,000 552,000 159,000
Vested, Number of Shares (226,000) (354,000) (98,000)
Forfeited, Number of Shares (80,000) (89,000) (80,000)
Ending Balance, Nonvested, Number of Shares 1,609,000 894,000 785,000
Beginning Balance, Nonvested, Weighted Average Grant Date Fair Value per Share $ 9.35 $ 9.53 $ 9.79
Granted, Weighted Average Grant Date Fair Value per Share $ 7.98 $ 9.26 $ 9.16
Vested, Weighted Average Grant Date Fair Value per Share $ 9.92 $ 9.60 $ 12.12
Forfeited, Weighted Average Grant Date Fair Value per Share $ 8.93 $ 9.37 $ 8.32
Ending Balance, Nonvested, Weighted Average Grant Date Fair Value per Share $ 8.43 $ 9.35 $ 9.53