Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)

v3.5.0.2
Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Thousands
Sep. 24, 2016
Sep. 26, 2015
Liabilities:    
Total liabilities $ 5,113 $ 3,625
Liability for Contingent Consideration [Member]    
Liabilities:    
Total liabilities 5,113 3,625
Level 1 [Member]    
Liabilities:    
Total liabilities 0 0
Level 1 [Member] | Liability for Contingent Consideration [Member]    
Liabilities:    
Total liabilities 0 0
Level 2 [Member]    
Liabilities:    
Total liabilities 0 0
Level 2 [Member] | Liability for Contingent Consideration [Member]    
Liabilities:    
Total liabilities 0 0
Level 3 [Member]    
Liabilities:    
Total liabilities 5,113 3,625
Level 3 [Member] | Liability for Contingent Consideration [Member]    
Liabilities:    
Total liabilities $ 5,113 $ 3,625