Discontinued Operations - Statement of Earnings of Discontinued Operation (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Discontinued Operations And Disposal Groups [Abstract]
Net sales		$ 46,180		$ 97,630
Cost of goods sold		43,093		90,148
Selling, general and administrative expenses		3,591		7,322
Restructuring and impairment charge		214		596
Operating loss		(718)		(436)
Other (expense) income, net		(728)		67
Loss before income taxes		(1,446)		(369)
Income tax (benefit) expense		(364)		132
Net loss from discontinued operations	$ 0	$ (1,082)	$ 0	$ (501)