Related Parties and Strategic Investments (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013	Dec. 29, 2013
Related Parties and Strategic Investments
Accounts payable balances due to related party	$ 134,817,000		$ 134,817,000		$ 146,964,000
Flash Ventures [Member]
Related Parties and Strategic Investments
The Company purchased NAND flash memory wafers from Flash Ventures and made prepayments, investments and loans to Flash Ventures	451,300,000	461,600,000	1,440,300,000	1,395,900,000
Repayment of loan from Flash Ventures	14,500,000	0	126,800,000	73,400,000
Accounts payable balances due to related party	$ 134,800,000		$ 134,800,000		$ 146,000,000
Flash Ventures [Member] | SanDisk Corporation [Member]
Related Parties and Strategic Investments
Percentage of ownership with Related party	49.90%		49.90%