Earnings Per Share (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Numerator:
Net loss attributable to common shareholders	$ (9,253)	$ 3,825	$ (20,330)	$ (72,084)	$ (88,600)	$ (62,800)	$ (31,900)
Denominator:
Weighted Average Number of Shares Outstanding, Basic	173,439,391	159,916,449	173,402,611	146,905,767
Options and restricted stock awards (in shares)		4,120,364
Common stock warrants (in shares)		1,054,486
Preferred stock (in shares)		11,065,880
Weighted Average Number of Shares Outstanding, Diluted	173,439,391	176,157,179	173,402,611	146,905,767