Property, Plant and Equipment - Property, Plant and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Property, Plant and Equipment [Line Items]
Total	$ 143,227	$ 120,973
Less-accumulated depreciation and amortization	(78,441)	(72,215)
Property, plant and equipment, net	64,786	48,758
Buildings [Member]
Property, Plant and Equipment [Line Items]
Total	26,859	20,460
Machinery, Equipment and Tooling [Member]
Property, Plant and Equipment [Line Items]
Total	58,620	48,830
Furniture, Fixtures and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total	3,833	3,384
Software and Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total	$ 53,915	$ 48,299