Earnings (Loss) per Share (Tables)

9 Months Ended

Sep. 30, 2019

Earnings (Loss) per Share

Schedule of basic and diluted loss per share

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(in thousands, except per share data)	2018		2019		2018		2019
Net loss for the period	$	(52,825)	$	(17,795)	$	(83,955)	$	(59,719)
Weighted average number of shares outstanding		58,442,987		75,161,192		45,369,040		72,153,405
Basic and diluted loss per share	$	(0.90)	$	(0.24)	$	(1.85)	$	(0.83)

Schedule of ordinary share equivalents excluded from the calculations of diluted loss per share

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2018	2019	2018	2019
Stock option awards	5,936,724	8,340,698	5,936,724	8,340,698
Restricted stock units	508,100	1,289,111	508,100	1,289,111