Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Additional Information (Detail)

v2.4.0.8
Fair Value Measurements - Additional Information (Detail) (USD $)
3 Months Ended 9 Months Ended
Jun. 29, 2013
Dec. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Transfers into or out of level 1 and level 2 assets     $ 0 $ 0
Impairment loss on property and equipment 4,832,000 1,960,000 4,832,000 0
Impairment loss on intangible assets 1,245,000 1,745,000 1,245,000 0
Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
       
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Impairment loss on property and equipment     4,832,000  
Impairment loss on intangible assets     $ 1,245,000