Income (Loss) Per Share

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Income (loss) per Share

Note 17—Income (Loss) Per Share

Basic loss per share is computed by dividing net loss by the sum of the weighted-average number of common shares outstanding and the weighted-average number of shares issuable under the common stock warrants, representing 347 thousand shares, 344 thousand shares and 749 thousand shares for the years ended December 31, 2016, 2015 and 2014, respectively. The common stock warrants are included in the calculation of basic loss per share because they are issuable for minimal consideration. The following table sets forth the computation of basic and diluted loss per share (in thousands, except per share amounts):

	Year Ended December 31,
	2016			2015			2014
Net loss	$	(45,835	)	$	(39,911	)	$	(47,041	)
Undistributed income allocated to participating securities (2)	—			—			—
Net income (loss) attributable to common stockholders	$	(45,835	)	$	(39,911	)	$	(47,041	)
Basic weighted-average common stock shares outstanding	42,349			37,678			32,739
Add dilutive effects of common stock equivalents (1)	—			—			—
Diluted weighted-average common stock shares outstanding	42,349			37,678			32,739
Basic and diluted loss per common share	$	(1.08	)	$	(1.06	)	$	(1.44	)

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(1) Entities with a net loss from continuing operations are prohibited from including potential common shares in the computation of diluted per share amounts. We have utilized the basic shares outstanding to calculate both basic and diluted loss per share.

(2) Participating securities includes restricted stock that has been issued but has not yet vested.

For the year ended December 31, 2016, our calculation of dilutive shares outstanding excluded 451 thousand shares of unvested restricted stock, 1.3 million stock options and 6.4 million outstanding common stock equivalents assuming our 5.00% Convertible Senior Notes had been converted on the date of issuance. For the year ended December 31, 2015, our calculation of dilutive shares outstanding excluded 535 thousand shares of unvested restricted stock and 632 thousand stock options. For the year ended December 31, 2014, our calculation of dilutive shares outstanding excluded 446 thousand shares of unvested restricted stock and 88 thousand stock options.

As discussed in Note 11—Debt, we have the option of settling the 5.00% Convertible Senior Notes in cash or shares of common stock, or any combination thereof, upon conversion. We have a net loss for the year ended December 31, 2016; therefore, there is no impact for the conversion of the 5.00% Convertible Senior Notes on diluted EPS as the effect would be anti-dilutive; however, had we reported net income for the year ended December 31, 2016, diluted EPS would have been determined using the if-converted method.