Accounts Receivable, Net and Significant Customers (Accounts Receivables) (Details) - USD ($) $ in Thousands	Jun. 26, 2015	Dec. 31, 2014
Accounts Receivable, Net [Abstract]
Gross accounts receivable	$ 424,927	$ 380,442
Allowance for doubtful accounts	(500)	(500)
Allowance for sales returns	0	(1,978)
Accounts receivable, net	$ 424,427	$ 377,964