Goodwill and Other Intangible Assets (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024	Jan. 01, 2025
Goodwill [Line Items]
Goodwill	$ 3,088,059,000	$ 1,923,106,000
Core Deposit and Other Intangibles	455,443,000	66,458,000
Impairment Charges	0	$ 0
Independent
Goodwill [Line Items]
Goodwill	1,200,000,000		$ 1,164,953,000
Core Deposit and Other Intangibles			$ 412,078,000
Core deposit intangibles | Independent
Goodwill [Line Items]
Core Deposit and Other Intangibles	412,100,000
Client list intangibles | Independent
Goodwill [Line Items]
Core Deposit and Other Intangibles	$ 558,000