Schedule I - Condensed Financial Information Of Registrant (Details) - Parent Company Statement Of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 29, 2013
Sep. 29, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 30, 2012
Sep. 30, 2012
Jul. 01, 2012
Mar. 25, 2012
Dec. 29, 2013
Dec. 30, 2012
Dec. 25, 2011
Parent Company Statement Of Comprehensive Income [Abstract]                      
Net income (loss) $ (23,698) $ (36,904) $ (3,231) $ (14,435) $ 6,868 $ 5,140 $ 25,997 $ (13,622) $ (78,268) $ 24,384 $ (55,548)
Net foreign currency translation adjustment                 (1,350) (1,057) (831)
Gain on recovery from impaired investments                 (1,200) 1,200  
Net unrealized hedge gain arising during the period                 15,714 741  
Net gain reclassified into earnings for cash flow hedge (ineffective portion)                 2,415    
Net gain reclassified into earnings for cash flow hedge (effective portion)                 (13,298) (740)  
Net unrealized gain on cash flow hedges                 1 1  
Other comprehensive income (loss), net of tax:                 (2,549) 144 (831)
Total comprehensive income (loss)                 (80,817) 24,528 (56,379)
Less: Comprehensive income (loss) attributable to noncontrolling interest                   (503) 338
Comprehensive income (loss) attributable to Spansion Inc. common stockholders                 $ (80,817) $ 25,031 $ (56,717)