Discontinued Operations - Summary of (Loss) Income from Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Discontinued Operations And Disposal Groups [Abstract]
Net sales		$ 5,975	$ 4,791	$ 17,899
Cost of sales		4,346	2,762	11,641
Gross profit		1,629	2,029	6,258
Selling, general and administrative expenses		1,246	1,181	3,631
Restructuring charges		95
Restructuring and impairment charges			8,682	95
Interest expense		385	589	1,123
Miscellaneous income, net		(5)	(2)	(11)
(Loss) income from discontinued operations before income taxes		(92)	(8,421)	1,420
Income tax expense		26		503
(Loss) income from discontinued operations, net of income taxes		$ (118)	$ (8,421)	$ 917