Note 6. Accumulated Other Comprehensive Loss (Details) - Accumulated Other Comprehensive Loss, Net of Tax (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 28, 2014
Dec. 29, 2013
Dec. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance as of December $ (2,302) $ (4,033) $ (1,484)
Other comprehensive income before reclassification, net of tax (7,269) 14,364  
Net change in unrecognized loss on Defined Benefit Plan (51)    
Amounts reclassified into income (ineffective portion)    [1] (2,415) [1]    [1]
Amounts reclassified on gain on recovery of impaired investments to earnings   (1,200)  
Net other comprehensive income (loss) 1,731 (2,549) 144
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Effective Portion [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amounts reclassified into income (effective portion) 9,051 (13,298) [2]  
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Ineffective Portion [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amounts reclassified into income (ineffective portion)   (2,415) [2]  
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member] | Effective Portion [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amounts reclassified into income (effective portion)    [2]    
Reclassification out of Accumulated Other Comprehensive Income [Member] | Effective Portion [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amounts reclassified into income (effective portion) 9,051 (13,298)  
Reclassification out of Accumulated Other Comprehensive Income [Member] | Ineffective Portion [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amounts reclassified into income (ineffective portion)   (2,415)  
Accumulated Translation Adjustment [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance as of December (3,681) (4,035) (2,685)
Other comprehensive income before reclassification, net of tax 354 (1,350)  
Net other comprehensive income (loss) 354 (1,350)  
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance as of December 1,430 2 1
Other comprehensive income before reclassification, net of tax (7,623) 15,714  
Net other comprehensive income (loss) 1,428 1  
Accumulated Net Unrealized Investment Gain (Loss) [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance as of December     1,200
Amounts reclassified on gain on recovery of impaired investments to earnings   (1,200)  
Net other comprehensive income (loss)   (1,200)  
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance as of December (51)    
Net change in unrecognized loss on Defined Benefit Plan (51)    
Net other comprehensive income (loss) $ (51)    
[1] Classified in interest income and other, net
[2] Please see note 17 for the further information on the reclassification