Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The weighted-average of potentially dilutive securities excluded from the computation of diluted earnings per share is shown in the table below.

	Year Ended December 31,
	2015	2014	2013
Basic weighted-average common stock outstanding	92,755,919	53,629,962	22,752,320
Potentially Dilutive Securities:
Shares underlying the conversion of preferred stock to common stock	10,438,426	10,483,052	10,607,309
Shares underlying the conversion of the convertible senior notes	4,327,654	7,342,864	8,623,331
Shares underlying warrants to purchase common stock	8,574,412	8,202,468	6,900,642
Shares underlying stock options to purchase common stock	823,352	555,977	356,815
Shares underlying restricted stock units and performance-based restricted stock units	1,519,776	797,026	367,183
	25,683,620	27,381,387	26,855,280
Diluted weighted-average shares outstanding	118,439,539	81,011,349	49,607,600