v3.26.3
Stockholders' Equity (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
May 21, 2026
USD ($)
Sep. 30, 2026
USD ($)
$ / shares
shares
Sep. 30, 2025
Sep. 30, 2026
USD ($)
vote
$ / shares
shares
Sep. 30, 2025
USD ($)
Feb. 10, 2026
USD ($)
Dec. 31, 2025
$ / shares
shares
Class of Stock [Line Items]              
Preferred stock, authorized (in shares)   500,000,000   500,000,000     500,000,000
Stockholders' equity ratio       1      
Preferred stock, outstanding (in shares)   0   0     0
Share repurchase program, authorized, amount | $           $ 300,000  
Increase share repurchase program, authorized, amount | $ $ 300,000            
Repurchase and retirement of common stock (in shares)       12,658,436      
Repurchase and retirement of common stock | $       $ 450,253 $ 0    
Share repurchase program, remaining authorized, amount | $   $ 150,000   150,000      
Dividends declared (in dollars per share) | $ / shares   $ 0.13          
Dividends paid | $       48,900      
Quarterly cash distribution (in dollars per share) | $ / shares   $ 0.06          
Distributions paid to the non-controlling interest holders of the LLC common units | $       $ 24,100      
Non Controlling Interest In Ryan Specialty, LLC              
Class of Stock [Line Items]              
Noncontrolling interest, ownership percentage by parent   47.60%   47.60%     49.10%
Ownership percentage, non-controlling   52.40%   52.40%     50.90%
IPO              
Class of Stock [Line Items]              
Preferred stock, authorized (in shares)   500,000,000   500,000,000      
IPO | Non Controlling Interest In Ryan Specialty, LLC              
Class of Stock [Line Items]              
Non-controlling interest, weighted average ownership percentage   52.90% 51.20% 52.00% 51.60%    
Class A Common Stock              
Class of Stock [Line Items]              
Common stock, authorized (in shares)   1,000,000,000   1,000,000,000     1,000,000,000
Common stock, par value (in dollars per share) | $ / shares   $ 0.001   $ 0.001     $ 0.001
Common stock voting rights (in votes) | vote       1      
Class A Common Stock | IPO              
Class of Stock [Line Items]              
Common stock, authorized (in shares)   1,000,000,000   1,000,000,000      
Class B Common Stock              
Class of Stock [Line Items]              
Common stock, authorized (in shares)   982,799,265   982,799,265     1,000,000,000
Common stock, par value (in dollars per share) | $ / shares   $ 0.001   $ 0.001     $ 0.001
Common stock voting rights (in votes) | vote       10      
Common stock voting rights in the future (in votes) | vote       1      
Class B Common Stock | IPO              
Class of Stock [Line Items]              
Common stock, authorized (in shares)   1,000,000,000   1,000,000,000      
Common stock, par value (in dollars per share) | $ / shares   $ 0.001   $ 0.001