Debt Securities Available for Sale - Expected Maturities of Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Amortized Cost
One year or less	$ 80,740
More than one year to five years	214,258
More than five years to ten years	78,508
Available-for-sale debt securities, allocated and single maturity date, total	373,506
Mortgage-backed securities and collateralized mortgage obligations	1,056,441
Amortized Cost	1,429,947	$ 1,251,230
Fair Value
One year or less	80,372
More than one year to five years	211,496
More than five years to ten years	65,009
Available-for-sale debt securities, allocated and single maturity date, total	356,877
Mortgage-backed securities and collateralized mortgage obligations	906,582
Fair Value	$ 1,263,459	$ 1,093,557

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