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Preferred Stock - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 30, 2012
Class of Stock [Line Items]  
Authorized preference shares 5,000,000
Par value of preferred share $ 1.00
Percentage acquisition of outstanding shares of Common Stock 15.00%
Exercise price per preference stock 90
Minimal preference share dividend $ 1.00
Aggregate dividend payment 100
Minimum preferential liquidation payment $ 1.00
Series B Preferred Stock [Member]
  
Class of Stock [Line Items]  
Number of vote options 100