Securities - Amortized Cost and Estimated Fair Value of Investment Securities by Contractual Maturity (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Amortized Cost
Less than one year	$ 55,326
Due after one year through five years	166,980
Due after five years through ten years	225,771
Due after ten years	282,963
Total amortized cost	731,040
Estimated Fair Value
Less than one year	54,972
Due after one year through five years	154,459
Due after five years through ten years	205,348
Due after ten years	252,395
Total estimated fair value	$ 667,174