Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2022

Stock-based Compensation

Summary of the stock-based compensation activity

	Quarter ended September 30,				Nine months ended September 30,
	2022		2021		2022		2021
	(in thousands)
Grants:
Units:
Performance-based restricted share units ("RSUs")		—		—		342		310
Stock options		—		—		574		249
Time-based RSUs		—		—		331		171
Grant date fair value:
Performance-based RSUs	$	—	$	—	$	19,522	$	18,237
Stock options		—		—		12,138		5,116
Time-based RSUs		—		—		18,903		10,066
Total	$	—	$	—	$	50,563	$	33,419
Vestings and exercises:
Performance-based RSUs vested		—		—		643		640
Stock options exercised		20		104		83		289
Time-based RSUs vested		—		2		246		309
Stock-based compensation expense	$	6,466	$	8,824	$	30,689	$	28,595