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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (unaudited) - USD ($)
shares in Millions, $ in Millions
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022   96.5      
Beginning balance at Dec. 31, 2022 $ 1,707.8 $ 0.1 $ 2,122.4 $ (7.9) $ (406.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income (loss) (76.6)       (76.6)
Other comprehensive loss (income), net of tax 5.2     5.2  
Stock-based compensation expense 39.9   39.9    
Issuances of common stock under stock plans (in shares)   1.0      
Issuances of common stock under stock plans 8.2   8.2    
Ending balance (in shares) at Mar. 31, 2023   97.5      
Ending balance at Mar. 31, 2023 1,684.5 $ 0.1 2,170.5 (2.7) (483.4)
Beginning balance (in shares) at Dec. 31, 2023   98.7      
Beginning balance at Dec. 31, 2023 2,232.0 $ 0.1 2,382.0 7.0 (157.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income (loss) 43.4       43.4
Other comprehensive loss (income), net of tax (3.7)     (3.7)  
Stock-based compensation expense 44.5   44.5    
Issuances of common stock under stock plans (in shares)   1.9      
Issuances of common stock under stock plans 69.9   69.9    
Ending balance (in shares) at Mar. 31, 2024   100.6      
Ending balance at Mar. 31, 2024 $ 2,386.1 $ 0.1 $ 2,496.4 $ 3.3 $ (113.7)