v3.24.0.1
Stockholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]  
Summary of the Equity-Based Compensation Expense Included in the Statements of Operations

The following table shows a summary of the equity-based compensation expense included in the Consolidated Statements of Operations:

 

 

 

 

 

 

Year Ended December 31,

 

 

 

2023

 

 

2022

 

 

2021

 

Selling, general and administrative

 

$

28.7

 

 

$

31.8

 

 

$

37.0

 

Research and development

 

 

9.7

 

 

 

16.0

 

 

 

21.8

 

Cost of sales

 

 

5.2

 

 

 

7.5

 

 

 

12.0

 

Total equity-based compensation expense

 

$

43.6

 

 

$

55.3

 

 

$

70.8

 
Summary of Weighted Average Assumptions Used to Estimate Fair Value of Stock Option

The following table presents the weighted average assumptions used to estimate the fair value of these awards granted:

 

 

Year Ended December 31,

 

 

 

2023

 

 

2022

 

 

2021

 

Risk-free interest rate

 

 

4.4

%

 

 

1.6

%

 

 

0.4

%

Expected volatility

 

 

67.2

%

 

 

61.1

%

 

 

55.9

%

Weighted average fair value at grant date

 

$

9.16

 

 

$

11.27

 

 

$

12.17

 
Summary of RSU Activity

The following table summarizes the RSU activity (in millions, except per share data):

 

 

Restricted
Stock
Units

 

 

Weighted
Average Grant
Date Fair Value
Per Share

 

Non-vested share units at December 31, 2022

 

 

10.6

 

 

$

10.47

 

Granted

 

 

7.4

 

 

$

4.57

 

Vested and shares issued

 

 

(5.0

)

 

$

10.84

 

Forfeited

 

 

(1.5

)

 

$

9.58

 

Non-vested share units at December 31, 2023

 

 

11.5

 

 

$

6.62

 

 
Summary of PSU Activity

The following table summarizes the PSU activity (in millions, except per share data):

 

 

Performance
Share Units

 

 

Weighted
Average Grant
Date Fair Value
Per Share

 

Non-vested share units at December 31, 2022

 

 

2.8

 

 

$

8.03

 

Granted

 

 

3.9

 

 

$

5.73

 

Forfeited

 

 

(0.3

)

 

$

9.05

 

Non-vested share units at December 31, 2023

 

 

6.4

 

 

$

6.59