Securities, AFS Debt Securities, Contractual Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Available-for-sale Securities, Debt Maturities, Amortized Cost [Abstract]
Within one year	$ 56,084
From one to five years	579,028
From five to ten years	305,590
After ten years	686,699
Amortized cost	1,627,401	$ 1,615,078
Available-for-sale Securities, Debt Maturities, Estimated Fair Value [Abstract]
Within one year	55,606
From one to five years	521,402
From five to ten years	269,587
After ten years	592,850
Fair value	$ 1,439,445	$ 1,430,858