Stock Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Summary of compensation expense

The following table presents stock-based compensation expense and other long-term incentive plan compensation expense for the years ended December 31, 2023, 2022, and 2021.

	Years Ended December 31,
(In thousands)	2023		2022		2021
Stock-based compensation	$	14,252	$	8,642	$	4,354
Other long-term incentive plan compensation (1)	310		171		848
Total compensation	$	14,562	$	8,813	$	5,202

(1) Other long-term incentive compensation consists of cash incentive grants awarded to employees located in jurisdictions where the Company does not issue stock-based compensation due to tax, regulatory or similar reasons.

Summary of restricted stock activity

The following table summarizes the time-based restricted stock activity for the year ended December 31, 2023:

(Sharecounts in thousands)	Shares	Weighted- average remaining term (years)	Weighted- average grant date fair value
Unearned, January 1, 2023	1,733	2.41	$	13.08
Shares vested	(641)		13.49
Shares awarded	1,097		13.14
Shares forfeited	(376)		13.04
Unearned, December 31, 2023	1,813	1.85	$	12.98

The following table summarizes activity related to unvested performance restricted stock shares during 2023:

(Sharecounts in thousands)	Total Unvested Shares	Weighted- average remaining term (years)	Weighted- average grant date fair value
Unearned, January 1, 2023	316	1.38	$	12.96
Shares vested	(95)		13.09
Shares awarded	1,003		14.25
Shares forfeited	(258)		14.09
Unearned, December 31, 2023	966	0.84	$	13.99

The following table summarizes activity related to unvested market and service restricted stock units settled in stock:

(Sharecounts in thousands)	Shares	Weighted- average remaining term (years)	Weighted- average grant date fair value
Unearned, January 1, 2023	257	2.75	$	12.17
Shares vested	(1)		33.31
Shares awarded	—		—
Shares forfeited	(5)		37.93
Unearned, December 31, 2023	251	1.89	$	11.58