Acquisitions and Disposals - Summary of Operating Results for Company's Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Business Combination Increase Decrease To Reflect Liabilities Acquired At Fair Value [Abstract]
Net sales	$ 22,225	$ 33,261
Cost of sales	24,393	34,976
Gross loss	(2,167)	(1,715)
Selling, general and administrative expense	396	353
Operating loss	(2,563)	(2,068)
Interest expense	99	92
Loss on sale of discontinued operations	12,083
Loss before income taxes	(14,745)	(2,160)
Benefit from income taxes	(6,066)	(690)
Net loss from discontinued operations	$ (8,679)	$ (1,470)

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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. Includes 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 gain (loss), before tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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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 costs of goods sold attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of general and administrative expense attributable to disposal group.

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Amount of gross profit attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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

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Amount of operating income or loss attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of 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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