Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Consolidated Statements of Comprehensive Income (Loss)
Net (loss) income	$ (18,767)us-gaap_ProfitLoss	$ (3,318)us-gaap_ProfitLoss	$ 8,024us-gaap_ProfitLoss
Other comprehensive loss, net of tax
Foreign currency translation adjustments	(411)
Comprehensive (loss) income	(19,178)	(3,318)	8,024
Comprehensive income attributable to non-controlling interest	786	650	729
Comprehensive (loss) income attributable to common stockholders	$ (19,964)us-gaap_ComprehensiveIncomeNetOfTax	$ (3,968)us-gaap_ComprehensiveIncomeNetOfTax	$ 7,295us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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