Earnings (Loss) Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Numerator:
Net Income (loss)	$ 7,804	$ (10,402)
Denominator:
Weighted-average common shares outstanding, Basic (in shares)	113,590	111,599
Weighted Average Number Diluted Shares Outstanding Adjustment	3,039	0
Denominator:
Weighted-average common shares outstanding, Diluted (in shares)	116,629	111,599
Earnings Per Share, Basic	$ 0.07	$ (0.09)
Earnings Per Share, Diluted	$ 0.07	$ (0.09)