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(18) Merger Restructuring (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jan. 01, 2012
Jan. 02, 2011
Jan. 03, 2010
Restructuring Cost and Reserve [Line Items]      
Merger restructuring $ 0 $ 0 $ 11,096
Severance and retention incentive compensation [Member]
     
Restructuring Cost and Reserve [Line Items]      
Restructuring and related cost incurred     14,197
Wendy's Restaurants, LLC [Member]
     
Restructuring Cost and Reserve [Line Items]      
Merger restructuring 0 0 8,088
Wendy's Restaurants, LLC [Member] | Severance and retention incentive compensation [Member]
     
Restructuring Cost and Reserve [Line Items]      
Restructuring and related cost incurred     $ 11,189