v3.26.1
Stock Transactions - Share Repurchases of Class A Common Stock (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Oct. 06, 2025
May 19, 2025
May 16, 2025
Feb. 05, 2025
Jun. 30, 2026
May 31, 2026
Apr. 30, 2026
Jun. 30, 2025
May 31, 2025
Apr. 30, 2025
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Class of Stock [Line Items]                                
Total number of shares repurchased (in shares)         1,805,000 8,401,000 0 12,000 16,115,000 1,097,000   246,000   3,184,000 10,452,000 20,408,000
Weighted-average price paid per share (in dollars per share)         $ 10.51 $ 11.12 $ 0 $ 9.75 $ 9.21 $ 9.22   $ 9.17   $ 9.36 $ 10.97 $ 9.23
Approximate dollar value of shares that could be repurchased under the program         $ 274,569     $ 178,389     $ 274,569   $ 178,389   $ 274,569 $ 178,389
Aggregate purchase price of Class A common stock                             $ 114,706 $ 171,635
Shares withheld to satisfy tax liabilities (in shares)                         1,100,000     1,800,000
Weighted-average price of shares withheld for tax liabilities (in dollars per share)                         $ 9.22     $ 9.16
Class A Common Stock                                
Class of Stock [Line Items]                                
Total number of shares repurchased (in shares)                     10,203,162   16,127,307   10,449,522 18,572,136
Approximate dollar value of shares that could be repurchased under the program         $ 274,600           $ 274,600       $ 274,600  
Stock repurchased during period (in shares)                     10,200,000   17,200,000   10,500,000 20,400,000
Aggregate purchase price of Class A common stock                     $ 112,400   $ 158,600   $ 114,600 $ 188,400
Stock repurchased, weighted average price (in dollars per share)                     $ 11.01   $ 9.21   $ 10.97 $ 9.23
Shares withheld to satisfy tax liabilities (in shares)       700,000                        
Share-based payment arrangement, decrease for tax withholding obligation                     $ 10,000   $ 12,500   $ 19,800 $ 20,900
Class A Common Stock | Mr. Howard W. Lutnick | Related Party                                
Class of Stock [Line Items]                                
Total number of shares repurchased (in shares) 337,765 16,115,102 16,452,850                          
Stock repurchased, weighted average price (in dollars per share)     $ 9.2082                          
Restricted Shares                                
Class of Stock [Line Items]                                
Share-based payment arrangement, decrease for tax withholding obligation                         $ 10,100     $ 16,800