CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income (loss)	$ (102,271)us-gaap_NetIncomeLoss	$ 8,210us-gaap_NetIncomeLoss
Other comprehensive income (loss)
Gain (loss) on investments available for sale	(11)	11
Comprehensive income (loss)	$ (102,282)us-gaap_ComprehensiveIncomeNetOfTax	$ 8,221us-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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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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