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Note 15. Financial Instruments and Fair Value Measurements (Details) - Table of Estimated Fair Value of Financial Instruments (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 30, 2012
Assets    
Shingle Springs notes and interest receivable $ 40,661 $ 38,247
Other assets related to Indian casino projects 25,167 24,387
Shingle Springs Tribe [Member] | Estimate of Fair Value Measurement [Member]
   
Assets    
Shingle Springs notes and interest receivable 53,482 49,920
Shingle Springs Tribe [Member]
   
Assets    
Shingle Springs notes and interest receivable 40,661 38,247
Indian Casino Projects [Member] | Estimate of Fair Value Measurement [Member]
   
Assets    
Other assets related to Indian casino projects 541 4,011
Indian Casino Projects [Member]
   
Assets    
Other assets related to Indian casino projects $ 553 $ 4,786