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Disposition of OCTG Business - Summary of Operating Results for Company's Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 22,225us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue
Cost of sales	24,392us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold
Gross loss	(2,167)us-gaap_DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss
Selling, general and administrative expense	396us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense
Operating loss	(2,563)us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss
Interest expense	(99)us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense
Loss on sale of business	(12,083)us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax
Loss before income taxes	(14,745)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
Income tax benefit	(3,852)us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation
Loss on discontinued operations	$ (10,893)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax

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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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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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