Securities - Held-to-maturity Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amortized Cost
Due after 1 year through 5 years	$ 1,161
Due after 5 years through 10 years	200
Due after 10 years	16,646
Amortized Cost	18,007	$ 32,188
Estimated Fair Value
Due after 1 year through 5 years	1,204
Due after 5 years through 10 years	220
Due after 10 years	17,175
Held-to-maturity securities, Fair Value	$ 18,599	$ 33,328

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

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), 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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