Segment and Geographic Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014 segment	Sep. 28, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reportable segments			1
Total revenue	$ 86,570	$ 87,154	$ 282,527	$ 243,006
Total revenue as percentage	100.00%	100.00%	100.00%	100.00%
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	63,364	66,191	209,567	177,848
Total revenue as percentage	73.00%	76.00%	74.00%	73.00%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	14,909	11,857	45,337	36,665
Total revenue as percentage	17.00%	14.00%	16.00%	15.00%
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 8,297	$ 9,106	$ 27,623	$ 28,493
Total revenue as percentage	10.00%	10.00%	10.00%	12.00%