Debt Securities Held to Maturity - Expected Maturities of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Amortized Cost
More than one year to five years	$ 14,874
More than five years to ten years	19,996
More than ten years	10,000
Held-to-maturity debt securities, allocated and single maturity date, total	44,870
Mortgage-backed securities and collateralized mortgage obligations	381,014
Amortized Cost	425,884	$ 429,734
Fair Value
More than one year to five years	13,656
More than five years to ten years	17,590
More than ten years	8,096
Held-to-maturity debt securities, allocated and single maturity date, total	39,342
Mortgage-backed securities and collateralized mortgage obligations	353,683
Debt securities held to maturity	$ 393,025	$ 434,789

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