v3.26.1
Goodwill and Intangible Assets (Carrying Amount Of Goodwill and Intangible Assets) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Schedule of Goodwill and Intangible Assets [Line Items]        
Goodwill, Beginning balance     $ 1,463,858  
Goodwill, Ending balance $ 1,463,858   1,463,858  
Intangible assets, Beginning balance     108,045  
Intangible assets, Adjustments     (147)  
Intangible assets, Amortization (8,600) $ (5,500) (19,099) $ (10,937)
Intangible assets, Ending balance 88,799   88,799  
Global Wealth Management [Member]        
Schedule of Goodwill and Intangible Assets [Line Items]        
Goodwill, Beginning balance     351,708  
Goodwill, Ending balance 351,708   351,708  
Intangible assets, Beginning balance     26,287  
Intangible assets, Amortization     (1,944)  
Intangible assets, Ending balance 24,343   24,343  
Institutional Group [Member]        
Schedule of Goodwill and Intangible Assets [Line Items]        
Goodwill, Beginning balance     1,112,150  
Goodwill, Ending balance 1,112,150   1,112,150  
Intangible assets, Beginning balance     81,758  
Intangible assets, Adjustments     (147)  
Intangible assets, Amortization     (17,155)  
Intangible assets, Ending balance $ 64,456   $ 64,456