v3.26.1
Condensed Consolidated Statements of Stockholders’ Equity - USD ($)
shares in Millions, $ in Millions
Total
Common Stock
Additional Paid-In Capital
Treasury Stock
Accumulated Other Comprehensive Income
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2024   160.1        
Beginning balance at Dec. 31, 2024 $ 597.4 $ 0.0 $ 1,506.7 $ (49.1) $ 0.0 $ (860.2)
Treasury stock, beginning balance (in shares) at Dec. 31, 2024       5.2    
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options (in shares)   0.9   0.9    
Exercise of stock options 3.8   (3.8) $ 7.6    
Vesting of restricted stock units, net of tax withholdings (in shares)   2.1   2.1    
Vesting of restricted stock units, net of tax withholdings (13.1)   (33.5) $ 20.4    
Issuance of common stock related to employee stock purchase plan (in shares)   0.4   0.4    
Issuance of common stock related to employee stock purchase plan 2.8   (1.3) $ 4.1    
Stock-based compensation 51.7   51.7      
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent 0.0          
Other comprehensive income 0.0          
Net loss (15.6)         (15.6)
Ending balance (in shares) at Jun. 30, 2025   163.5        
Ending balance at Jun. 30, 2025 627.0 $ 0.0 1,519.8 $ (17.0) 0.0 (875.8)
Treasury stock, ending balance (in shares) at Jun. 30, 2025       1.8    
Beginning balance (in shares) at Mar. 31, 2025   161.3        
Beginning balance at Mar. 31, 2025 610.5 $ 0.0 1,516.3 $ (37.8) 0.0 (868.0)
Treasury stock, beginning balance (in shares) at Mar. 31, 2025       4.0    
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options (in shares)   0.6   0.6    
Exercise of stock options 2.6   (2.5) $ 5.1    
Vesting of restricted stock units, net of tax withholdings (in shares)   1.2   1.2    
Vesting of restricted stock units, net of tax withholdings (6.9)   (18.5) $ 11.6    
Issuance of common stock related to employee stock purchase plan (in shares)   0.4   0.4    
Issuance of common stock related to employee stock purchase plan 2.8   (1.3) $ 4.1    
Stock-based compensation 25.8   25.8      
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent 0.0          
Other comprehensive income 0.0          
Net loss (7.8)         (7.8)
Ending balance (in shares) at Jun. 30, 2025   163.5        
Ending balance at Jun. 30, 2025 $ 627.0 $ 0.0 1,519.8 $ (17.0) 0.0 (875.8)
Treasury stock, ending balance (in shares) at Jun. 30, 2025       1.8    
Beginning balance (in shares) at Dec. 31, 2025 167.9 167.9        
Beginning balance at Dec. 31, 2025 $ 635.7 $ 0.0 1,546.9 $ 0.0 0.0 (911.2)
Treasury stock, beginning balance (in shares) at Dec. 31, 2025       0.0    
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options (in shares)   0.2        
Exercise of stock options 0.5   0.5      
Vesting of restricted stock units, net of tax withholdings (in shares)   4.8        
Vesting of restricted stock units, net of tax withholdings $ (18.6)   (18.6)      
Repurchases of common stock (in shares) (16.5) (16.5)        
Repurchases of common stock $ (90.3)   (90.3)      
Issuance of common stock related to employee stock purchase plan (in shares)   0.5        
Issuance of common stock related to employee stock purchase plan 2.7   2.7      
Issuance of common stock in connection with the Merger with Udemy (in shares)   117.6        
Issuance of common stock in connection with the Merger with Udemy 673.6   673.6      
Stock-based compensation 64.2   64.2      
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent 0.1       0.1  
Other comprehensive income (0.1)          
Net loss $ (100.9)         (100.9)
Ending balance (in shares) at Jun. 30, 2026 274.5 274.5        
Ending balance at Jun. 30, 2026 $ 1,167.0 $ 0.0 2,179.0 $ 0.0 0.1 (1,012.1)
Treasury stock, ending balance (in shares) at Jun. 30, 2026       0.0    
Beginning balance (in shares) at Mar. 31, 2026   169.3        
Beginning balance at Mar. 31, 2026 631.8 $ 0.0 1,563.5 $ 0.0 0.0 (931.7)
Treasury stock, beginning balance (in shares) at Mar. 31, 2026       0.0    
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of stock options (in shares)   0.1        
Exercise of stock options 0.3   0.3      
Vesting of restricted stock units, net of tax withholdings (in shares)   3.5        
Vesting of restricted stock units, net of tax withholdings $ (12.7)   (12.7)      
Repurchases of common stock (in shares) (16.5) (16.5)        
Repurchases of common stock $ (90.3)   (90.3)      
Issuance of common stock related to employee stock purchase plan (in shares)   0.5        
Issuance of common stock related to employee stock purchase plan 2.7   2.7      
Issuance of common stock in connection with the Merger with Udemy (in shares)   117.6        
Issuance of common stock in connection with the Merger with Udemy 673.6   673.6      
Stock-based compensation 41.9   41.9      
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent 0.1       0.1  
Other comprehensive income (0.1)          
Net loss $ (80.4)         (80.4)
Ending balance (in shares) at Jun. 30, 2026 274.5 274.5        
Ending balance at Jun. 30, 2026 $ 1,167.0 $ 0.0 $ 2,179.0 $ 0.0 $ 0.1 $ (1,012.1)
Treasury stock, ending balance (in shares) at Jun. 30, 2026       0.0