Note 11. Derivative Financial Instruments (Details) - Summary of Derivative-related Activity in Accumulated Other Comprehensive Loss (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jul. 01, 2012
Jun. 30, 2013
Jul. 01, 2012
Summary of Derivative-related Activity in Accumulated Other Comprehensive Loss [Abstract]        
Balance $ 5,991   $ 1  
Net gain reclassified into earnings on cash flow hedges (effective portion) (2,835)   (4,588) [1]  
Net gain reclassified into earnings on cash flow hedges (ineffective portion) (2,415) 0 (2,415) [2]  
Net unrealized hedge gain arising during the period 6,317 217 14,060 217
Balance $ 7,058 $ 217 $ 7,058 $ 217
[1] Reclassified into Net Sales line item of the Condensed Consolidated Statement of Operations (See Note 11 for further details).
[2] Reclassified into Interest and Other Income line item of the Condensed Consolidated Statement of Operations (See Note 11 for further details on the ineffective portion of cash flow hedges).