Earnings (Loss) per Share

9 Months Ended

Sep. 30, 2017

Earnings (Loss) per Share

Earnings (Loss) per Share

5.            Earnings (Loss) per Share

Basic and diluted loss per share

For the three and nine months ended September 30, 2017 and 2016, basic and diluted net loss per share was determined by dividing net loss attributable to shareholders by the weighted average number of shares outstanding during the period.  Diluted net loss per share is the same as basic net loss per share during the periods presented as the effects of the Company’s potential common stock equivalents are antidilutive and thus not included in the calculation.

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands, except per share data)	2016			2017			2016			2017
Net loss for the period	$	(14,000	)	$	(22,269	)	$	(39,703	)	$	(52,094	)
Weighted average number of shares outstanding	21,276,610			28,147,226			21,236,260			27,517,267
Basic and diluted loss per share	$	(0.66	)	$	(0.79	)	$	(1.87	)	$	(1.89	)

The following common stock equivalents were excluded from the calculations of diluted earnings per share as their effect would be anti-dilutive:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2016	2017	2016	2017
Stock option awards	1,969,810	3,294,240	1,969,810	3,294,240