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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2024

Stock-based payment awards

Schedule of stock-based compensation expense

​

​	​	​	​	​	​	​	​	​	​
​	​	Year Ended December 31,
(in thousands)	​	2024			2023			2022
Equity award expense	​	$	14,646	​	$	12,998	​	$	11,928
Liability award expense	​		18,393	​		7,910	​		2,569
Total stock-based compensation expense	​	$	33,039	​	$	20,908	​	$	14,497

Schedule of valuation assumptions

​

​	​	​	​	​	​	​	​	​	​	​
​	​	Year Ended December 31,								​
​	​	2024		​	2023		​	2022		​
Remaining performance period as of grant date (in years)		​	2.9		​	2.9		​	2.9
Risk-free interest rate used		​	4.1	%	​	3.9	%	​	1.4	%
Grant-date fair value	​	$	23.67	​	$	15.68	​	$	11.96	​

Restricted stock and performance-based restricted stock units

Stock-based payment awards

Schedule of restricted stock activity

​

​	​	​	​	​	​
​	​	​	​	Weighted
​	​	​	​	Average
​	​	​	​	Grant Date
​	​	​	​	Fair Value
(in thousands, except per share amounts)		Shares		Per Share
Non-vested restricted stock and performance-based restricted stock units, December 31, 2023		2,625	​	$	10.19
Granted		864	​		17.44
Adjustment for performance	​	13	​	​	14.30
Vested		(1,188)	​		10.22
Canceled		(38)	​		12.08
Non-vested restricted stock and performance-based restricted stock units, December 31, 2024		2,276	​	$	12.81

Cash-settled performance units

Stock-based payment awards

Schedule of restricted stock activity

​

​	​	​	​	​	​
​	​	​	​	Weighted
​	​	​	​	Average
​	​	​	​	Grant Date
​	​	​	​	Fair Value
(in thousands, except per share amounts)		Shares		Per Share
Non-vested cash-settled performance units, December 31, 2023		548	​	$	9.37
Granted		134	​		16.00
Adjustment for performance	​	92	​	​	10.70
Vested		(235)	​		10.70
Canceled		—	​		—
Non-vested cash-settled performance units, December 31, 2024		539	​	$	10.67

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Tabular disclosure of valuation assumptions for share-based payment.

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