Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Consolidated Statements of Comprehensive Income (Loss)
Net income (loss)	$ 135,817	$ (9,602)	$ (16,750)
Unrealized gains (losses) on securities:
Holding gains (losses) arising during period, net of tax	(191)	(268)	129
Reclassification adjustment for (gains) losses included in net income (loss)	65	24	1,466
Net unrealized gains (losses) on securities	(126)	(244)	1,595
Total comprehensive income (loss)	$ 135,691us-gaap_ComprehensiveIncomeNetOfTax	$ (9,846)us-gaap_ComprehensiveIncomeNetOfTax	$ (15,155)us-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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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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