Earnings (Loss) per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings (Loss) per Share

Schedule of basic and diluted loss per share

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(in thousands, except per share data)	2019		2020		2019		2020
Net loss for the period	$	(21,707)	$	(15,441)	$	(41,924)	$	(38,700)
Weighted average number of shares outstanding		72,526,441		112,778,258		70,624,583		103,686,706
Basic and diluted loss per share	$	(0.30)	$	(0.14)	$	(0.59)	$	(0.37)

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

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2019	2020	2019	2020
Stock option awards	8,363,789	10,274,855	8,363,789	10,274,855
Restricted stock units	1,524,642	1,893,984	1,524,642	1,893,984