Investment Securities - Contractual Maturities of Debt Securities Held to Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Amortized Cost
Due in one year	$ 63,269
Due after one year through five years	49,356
Due after five years through ten years	164,449
Due after ten years	522,690
Residential mortgage-backed securities	2,731,797
Amortized Cost	3,531,561	$ 3,532,220
Fair Value
Due in one year	63,061
Due after one year through five years	48,874
Due after five years through ten years	156,160
Due after ten years	449,745
Residential mortgage-backed securities	2,370,561
Total	$ 3,088,401	$ 3,028,284

Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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