Acquisitions and Disposals - Summary of Operating Results for Company's Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Business Combination Increase Decrease To Reflect Liabilities Acquired At Fair Value [Abstract]
Net sales			$ 28,796	$ 22,225	$ 62,058
Cost of sales	(15)		28,338	24,377	63,315
Gross Profit (loss)	15		458	(2,152)	(1,257)
Selling, general and administrative expense			347	396	701
Operating income (loss)	15		111	(2,548)	(1,958)
Interest expense			(89)	(99)	(181)
Loss on sale of business				(12,083)
Income (loss) before income taxes	15		22	(14,730)	(2,139)
Income tax expense (benefit)	5	(3,852)	8	(3,847)	(683)
Income (loss) on discontinued operations	$ 10	$ (10,893)	$ 14	$ (10,883)	$ (1,456)

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Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Amount of interest expense allocated to disposal group, including a discontinued operation.

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