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Fair Value Measurement (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended 3 Months Ended 3 Months Ended
Sep. 30, 2012
Sep. 30, 2012
Sep. 30, 2011
Aug. 26, 2010
Note Receivable Fair Value From Bakers [Member]
Sep. 30, 2012
Note Receivable From Bakers [Member]
Sep. 30, 2011
Note Receivable From Bakers [Member]
Aug. 26, 2010
Note Receivable From Bakers [Member]
Sep. 30, 2012
Accounts Receivable [Member]
Sep. 30, 2012
Estimate of Fair Value, Fair Value Disclosure [Member]
Dec. 31, 2011
Estimate of Fair Value, Fair Value Disclosure [Member]
Sep. 30, 2012
Estimate of Fair Value, Fair Value Disclosure [Member]
Note Receivable From Bakers [Member]
Unregistered Shares Of Common Stock Acquired       1,844,860     1,844,860        
Security Owned Not Readily Marketable, Fair Value                 $ 0 $ 996 $ 996
Financing Receivable, Gross         4,148 4,074         4,148
Accounts Receivable, Net, Current               852      
Other than Temporary Impairment Losses, Investments         996            
Tangible Asset Impairment Charges 1,810       4,148            
Provision for Doubtful Accounts   $ 2,249 $ 4,352         $ 852