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Fair Value Measurements Fair Value Measurements (Tables)
12 Months Ended
Dec. 27, 2011
Fair Value Measurements [Abstract]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
 
December 29, 2009
Beginning balance
$
4,126

Net realized and unrealized gains
1,339

Redemptions
(5,465
)
Ending balance
$