Earnings (Loss) Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Numerator:
Net Income (Loss) Attributable to Parent	$ 5,043	$ (7,844)	$ 12,847	$ (18,246)
Denominator:
Weighted-average common shares outstanding, Basic (in shares)	114,116	112,183	113,854	111,892
Effect of potential dilutive common shares	3,282	0	2,879	0
Denominator:
Weighted-average common shares outstanding, Diluted (in shares)	117,398	112,183	116,733	111,892
Earnings Per Share, Basic	$ 0.04	$ (0.07)	$ 0.11	$ (0.16)
Earnings Per Share, Diluted	$ 0.04	$ (0.07)	$ 0.11	$ (0.16)