Net Loss Per Share

The calculations of net loss per share were as follows:



	Three months ended June 30,						Six months ended June 30,
	2018			2017			2018			2017
	(Unaudited - In thousands, except per share data)
Basic:
Net loss	$	(24,896	)	$	(29,097	)	$	(31,066	)	$	(51,194	)
Weighted average common shares outstanding	20,539			20,411			20,523			20,395
Net loss per share	$	(1.21	)	$	(1.43	)	$	(1.51	)	$	(2.51	)

Diluted:
Net loss	$	(24,896	)	$	(29,097	)	$	(31,066	)	$	(51,194	)
Weighted average common shares outstanding	20,539			20,411			20,523			20,395
Net loss for dilutive share computation	$	(1.21	)	$	(1.43	)	$	(1.51	)	$	(2.51	)

Basic and diluted average common shares outstanding for purposes of computing net income (loss) per share includes outstanding common shares and vested deferred stock units (DSUs).

If a consolidated or equity method partner company has dilutive stock options, unvested restricted stock, DSUs or warrants, diluted net income (loss) per share is computed by first deducting the income attributable to the potential exercise of the dilutive securities of the partner company from net income (loss). Any impact is shown as an adjustment to net income (loss) for purposes of calculating diluted net income (loss) per share.

Diluted earnings per share for the three and six months ended June 30, 2018 and 2017 do not reflect the following potential shares of common stock that would have an anti-dilutive effect or have unsatisfied performance or market conditions:


•	At June 30, 2018 and 2017, options to purchase 0.5 million and 0.7 million shares of common stock, respectively, at prices ranging from $9.83 to $19.95 for both periods, were excluded from the calculations.


•	At June 30, 2018 and 2017, unvested restricted stock, performance-based stock units and DSUs convertible into 0.8 million and 0.9 million shares of stock, respectively, were excluded from the calculations.


•	2.3 million and 2.4 million shares of common stock that were outstanding during the period of 2018 and 2017, respectively, representing the effect of the assumed conversion of the 2018 Debentures, were excluded from the calculations.