Segment, Geographic, Product and Significant Customer Information - Customers More Than 10% of Revenues (Details)	3 Months Ended
	Mar. 28, 2015	Mar. 29, 2014
Samsung Electronics Co. Ltd. [Member]
Net revenues:
Customers accounted for 10% or more of total revenue	30.30%	51.70%
Intel Corporation [Member]
Net revenues:
Customers accounted for 10% or more of total revenue		13.10%
SK Hynix [Member]
Net revenues:
Customers accounted for 10% or more of total revenue	13.40%
Taiwan Semiconductor Manufacturing Company Limited [Member]
Net revenues:
Customers accounted for 10% or more of total revenue	22.30%