Goodwill and Intangible Assets (Carrying Amount of Goodwill and Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance	$ 1,395,218
Goodwill, Adjustments	(3)
Goodwill, Ending balance	1,395,215
Intangible assets, Beginning balance	113,574
Intangible assets, Adjustments	(35)
Intangible assets, Amortization	(5,396)	$ (5,842)
Intangible assets, Ending balance	108,143
Global Wealth Management [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance	335,009
Goodwill, Adjustments	0
Goodwill, Ending balance	335,009
Intangible assets, Beginning balance	24,385
Intangible assets, Adjustments	0
Intangible assets, Amortization	(942)
Intangible assets, Ending balance	23,443
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance	1,060,209
Goodwill, Adjustments	(3)
Goodwill, Ending balance	1,060,206
Intangible assets, Beginning balance	89,189
Intangible assets, Adjustments	(35)
Intangible assets, Amortization	(4,454)
Intangible assets, Ending balance	$ 84,700