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Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at	$ 347,489us-gaap_StockholdersEquity
Balance at (in shares)	64,854,950us-gaap_CommonStockSharesOutstanding
Total comprehensive income (loss)	9,765us-gaap_ComprehensiveIncomeNetOfTax
Balance at	357,419us-gaap_StockholdersEquity
Balance at (in shares)	65,119,626us-gaap_CommonStockSharesOutstanding
Accumulated Deficit [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	$ 9,109

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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