Long-Lived Assets by Major Geographic Region (Details) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2014	Dec. 28, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 150,410	$ 130,671
United States and Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	126,995	108,854
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	5,436	4,126
Europe and Middle East
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	16,208	16,207
Latin America
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	1,771	1,484
Total International
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 23,415	$ 21,817