Investment Securities Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	May 31, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Schedule of Investments [Line Items]
Debt Securities, Held-to-Maturity, Fair Value		$ 1,033,439		$ 1,033,439		$ 1,072,207
Proceeds from sales of AFS securities	$ 345,700			2,261,028	$ 80,666
Debt securities, realized loss	$ 20,300	20,373	$ 4	20,373	$ 264
Collateral Pledged [Member]
Schedule of Investments [Line Items]
Securities pledged as collateral		$ 1,200,000		$ 1,200,000		$ 400,000