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Stock Based Compensation and Other Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2025
Stock Based Compensation and Other Benefit Plans  
Schedule of valuation assumptions

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Year Ended December 31, 

 

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  ​ ​ ​

2025

  ​ ​ ​

2024

 

Dividend yield

 

—

%

—

%

Expected volatility

 

63

%

65

%

Risk-free interest rate

 

4.24

%

4.35

%

Expected term

 

5.79 years

​

5.79 years

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Schedule of stock option activity

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Weighted

  ​ ​ ​

Weighted

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Average

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Average

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Aggregate

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Exercise

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Contractual 

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Intrinsic

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Number of

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Price

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Remaining Term

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Value

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​

shares

​

Per Share

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(in years)

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(in thousands)

Outstanding as of January 1, 2025

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​

2,426,929

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$

20.83

 

​

5.77

​

$

18,644

Granted

 

​

9,936

​

 

25.12

 

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​

 

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  ​

Exercised

 

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(246,395)

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7.63

 

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  ​

Forfeited, expired or cancelled

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(37,013)

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75.20

 

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  ​

Outstanding as of December 31, 2025

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​

2,153,457

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$

21.42

 

​

5.23

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$

14,520

Exercisable as of December 31, 2025

​

​

1,994,839

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$

21.24

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​

5.08

​

$

13,836

Vested and expected to vest as of December 31, 2025

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​

2,153,457

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$

21.42

 

​

5.23

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$

14,520

Schedule of grant date fair values of PSUs granted

The grant date fair values of the PSUs granted in 2024 were estimated as follows:

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Derived

Hurdle Price

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Number of

​

Fair Value

​

Service Period

Per PSU

​

PSUs

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Per Share

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(in years)

$

30.00

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​

165,900

 

$

18.42-19.71

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​

0.46-0.74

$

35.00

​

​

55,290

 

$

17.24-17.67

​

​

0.66-0.96

$

40.00

​

​

34,029

 

$

15.85-16.14

​

​

0.82-1.15

$

45.00

​

​

29,781

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$

14.20-15.13

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​

0.95-1.31

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285,000

 

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​

​

The grant date fair values of the PSUs granted in 2025 were estimated as follows:

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Derived

​

Hurdle Price

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Number of

​

Fair Value

​

Service Period

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Per Share

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PSUs

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Per Share

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(in years)

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$

30.00

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21,106

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$

22.84-37.85

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0.08-0.12

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$

35.00

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​

8,701

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$

16.40-36.37

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​

0.08-0.29

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$

40.00

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​

7,951

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$

11.34-29.46

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​

0.12-0.40

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$

45.00

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​

9,925

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$

6.57-22.33

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0.24-0.48

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​

47,683

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​

Schedule of performance shares, outstanding activity

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Weighted

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Average

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Grant Date

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Number of

​

Fair Value

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​

Unvested PSUs

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Per Share

Unvested balance as of January 1, 2025

​

​

597,117

​

$

16.03

Granted

 

​

47,683

​

 

20.61

Vested

 

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(264,893)

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17.35

Forfeited

​

​

—

​

 

—

Unvested balance as of December 31, 2025

​

​

379,907

​

$

15.69

Schedule of restricted stock unit awards activity

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Weighted

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Average

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​

Grant Date

​

​

Number of

​

Fair Value

​

​

Unvested RSUs

​

Per Share

Unvested balance as of January 1, 2025

​

​

15,175

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$

24.71

Granted

 

​

29,855

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25.12

Vested

 

​

(15,175)

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24.71

Forfeited

​

​

—

​

 

—

Unvested balance as of December 31, 2025

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​

29,855

​

$

25.12

Summary of stock-based compensation expense The following table shows total stock-based compensation expense for stock options, PSUs, RSUs, and ESPP in the consolidated statements of operations (in thousands):

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Year Ended December 31, 

​

​

2025

​

2024

Equity-classified awards:

​

$

6,816

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$

10,312

Liability-classified awards:

​

​

2,457

​

​

—

Total stock-based compensation expense

​

$

9,273

​

$

10,312

​