Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2023

Stock-based Compensation

Summary of the stock-based compensation activity

	Quarter ended June 30,				Six months ended June 30,
	2023		2022		2023		2022
	(in thousands)
Grants:
Units:
Performance-based restricted share units ("RSUs")		—		—		307		342
Stock options		—		—		221		574
Time-based RSUs		5		—		187		331
Grant date fair value:
Performance-based RSUs	$	—	$	—	$	18,611	$	19,522
Stock options		—		—		5,492		12,138
Time-based RSUs		300		—		11,341		18,903
Total	$	300	$	—	$	35,444	$	50,563
Vestings and exercises:
Performance-based RSUs vested		—		—		612		643
Stock options exercised		195		19		351		63
Time-based RSUs vested		1		2		246		246
Stock-based compensation expense	$	375	$	14,948	$	12,025	$	24,223