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Income Taxes - Deferred Income Tax Assets and Liabilities on Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred Tax Assets Liabilities Net [Abstract]
Current deferred income tax assets		$ 4,427
Long term deferred income tax liabilities	(267)	(10,326)
Net deferred tax liability	$ (267)	$ (5,899)

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer.

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