Investment Securities - Contractual Maturities of Debt Securities Available for Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Amortized Cost
Due in one year	$ 351
Due after one year through five years	292,140
Due after five years through ten years	183,029
Due after ten years	290,492
Residential mortgage-backed securities	1,625,542
Amortized Cost	2,391,554	$ 1,454,439
Fair Value
Due in one year	349
Due after one year through five years	278,674
Due after five years through ten years	159,565
Due after ten years	237,814
Residential mortgage-backed securities	1,535,690
Total	$ 2,212,092	$ 1,296,576

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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-Topic 320
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-Section 50
-Paragraph 3
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

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+ References

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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