CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income (loss)	$ (85,276)	$ 10,754	$ (187,547)	$ 18,964
Other comprehensive income (loss)
Gain (loss) on investments available for sale	(26)	9	(14)	20
Comprehensive income (loss)	$ (85,302)	$ 10,763	$ (187,561)	$ 18,984