Statements Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Statements Comprehensive Income (Loss)
Net income (loss)	$ 7,610us-gaap_NetIncomeLoss	$ (20,682)us-gaap_NetIncomeLoss
Other comprehensive income:
Unrealized gain on available for sale securities, net of taxes	48	18
Other comprehensive income	48	18
Comprehensive income (loss)	$ 7,658us-gaap_ComprehensiveIncomeNetOfTax	$ (20,664)us-gaap_ComprehensiveIncomeNetOfTax

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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