v3.25.4
Summary of Significant Accounting Policies (Narrative) (Details)
 12 Months Ended
Dec. 31, 2025
USD ($)
vote
customer
$ / shares
shares
Dec. 31, 2024
USD ($)
customer
shares
Dec. 31, 2023
USD ($)
shares
Jun. 30, 2024
Jun. 21, 2024
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Advertising costs $ 287,200,000 $ 273,800,000 $ 241,500,000    
Foreign currency transaction gains (losses) 13,300,000 (7,000,000.0) $ 8,400,000    
Equity method investments 94,800,000 81,800,000      
Investments in non-marketable equity securities 45,400,000 $ 43,900,000      
Repurchase amount (up to) 1,500,000,000        
Treasury stock acquired 17,969,000        
Available for repurchase under program $ 117,400,000        
Restricted stock units          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Antidilutive securities excluded from EPS (in shares) | shares 0 3,400,000      
Convertible Notes Payable          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Antidilutive securities excluded from EPS (in shares) | shares   11,300,000      
4.25% Convertible Senior Notes due 2029 | Convertible Debt          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Interest rate 4.25%     4.25% 4.25%
Accounts Receivable | Customer Concentration Risk          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Number of customers | customer 2 1      
Accounts Receivable | Customer Concentration Risk | Customer One          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Concentration risk, percentage 13.00% 13.00%      
Accounts Receivable | Customer Concentration Risk | Customer Two          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Concentration risk, percentage 10.00%        
Class A  Common Stock          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Common stock, voting rights | vote 1        
Common stock, conversion ratio 1        
Stockholders entitled election of board of directors 25.00%        
Share repurchases (in shares) | shares 2,449,000 0 0    
Shares acquired, average cost per share (in dollars per share) | $ / shares $ 7.29        
Treasury stock acquired $ 18,000,000        
Class B  Common Stock          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Common stock, voting rights | vote 10        
Common stock, conversion ratio 1        
Ownership percentage 0.83        
Share repurchases (in shares) | shares 0        
Prepaid expenses and other current assets          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Income tax receivable, program rights $ 125,300,000 $ 182,000,000      
Other Noncurrent Assets          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Income tax receivable, program rights $ 95,000,000 $ 42,400,000      
Restricted stock units          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Antidilutive securities excluded from EPS (in shares) | shares     500,000    
2011 Non-Employee Director Plan | Restricted stock units          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Vesting percentage 100.00%