v3.26.1
Corporate Debt and Other Borrowings, Net - Textuals (Details)
3 Months Ended 12 Months Ended
Nov. 21, 2025
USD ($)
Apr. 03, 2025
USD ($)
Feb. 26, 2025
USD ($)
Mar. 31, 2026
USD ($)
lineOfCredit
Dec. 31, 2025
USD ($)
Jul. 18, 2023
USD ($)
Line of Credit Facility [Line Items]            
Debt issuance costs     $ 10,400,000      
Corporate long-term debt       $ 7,182,102,000 $ 7,258,694,000  
2030 Senior Notes            
Line of Credit Facility [Line Items]            
Basis spread on variable rate     0.15%      
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed     100.00%      
2035 Senior Notes            
Line of Credit Facility [Line Items]            
Basis spread on variable rate     0.20%      
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed     100.00%      
Unsecured Debt | 2028, 2030 and 2035 Senior Notes            
Line of Credit Facility [Line Items]            
Debt issuance costs   $ 11,000,000.0        
Unsecured Debt | 4.900% Senior Notes Due 2028            
Line of Credit Facility [Line Items]            
Aggregate principal amount of debt issued   $ 500,000,000.0        
Stated rate   4.90%        
Basis spread on variable rate   0.20%        
Unsecured Debt | 5.150% Senior Notes Due 2030            
Line of Credit Facility [Line Items]            
Aggregate principal amount of debt issued   $ 500,000,000.0        
Stated rate   5.15%        
Unsecured Debt | 5.750% Senior Notes Due 2035            
Line of Credit Facility [Line Items]            
Aggregate principal amount of debt issued   $ 500,000,000.0        
Stated rate   5.75%        
Basis spread on variable rate   0.25%        
Line of Credit            
Line of Credit Facility [Line Items]            
Total number of uncommitted lines of credit | lineOfCredit       5    
Number of uncommitted lines of credit with an unspecified limit | lineOfCredit       2    
Number of uncommitted lines of credit with a specified limit | lineOfCredit       3    
Line of Credit | Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Line of credit, maximum borrowing capacity       $ 200,000,000.0    
Corporate long-term debt       0 $ 0  
Line of Credit | Revolving Credit Facility | Uncollateralized            
Line of Credit Facility [Line Items]            
Line of credit, maximum borrowing capacity       $ 125,000,000.0    
Line of Credit | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)            
Line of Credit Facility [Line Items]            
Basis spread on variable rate       1.475% 1.475%  
Line of Credit | Broker-Dealer, Revolving Credit Facility | Revolving Credit Facility | LPL Financial LLC            
Line of Credit Facility [Line Items]            
Stated rate           1.25%
Debt issuance costs           $ 1,300,000
Line of credit, maximum borrowing capacity           $ 1,000,000,000.0
Senior Notes | 2030 Senior Notes            
Line of Credit Facility [Line Items]            
Debt instrument, face amount     $ 750,000,000.0      
Stated rate     5.20%      
Senior Notes | 2035 Senior Notes            
Line of Credit Facility [Line Items]            
Debt instrument, face amount     $ 500,000,000.0      
Stated rate     5.65%      
Secured Debt | Fourth Amendment Agreement Term Loan B            
Line of Credit Facility [Line Items]            
Debt instrument, face amount $ 1,000,000,000.0          
Debt Instrument, Interest Rate, Decrease 0.125%          
Secured Debt | Term Loan A | Secured Overnight Financing Rate (SOFR)            
Line of Credit Facility [Line Items]            
Basis spread on variable rate       1.25% 1.25%