Debt Securities Available-for-Sale - Summary Of Expected Maturity Distribution Of Debt Securities Available-For-Sale, Other Than Mortgage-Backed Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Amortized cost
Amortized cost	$ 1,019,607	$ 1,205,516
Estimated fair value
Estimated fair value	952,173	$ 1,208,237
Other Than Mortgage Backed Securities
Amortized cost
Due in one year or less	154,157
Due after one year through five years	110,467
Due after five years through ten years	1,150
Amortized cost	265,774
Estimated fair value
Due in one year or less	149,006
Due after one year through five years	104,807
Due after five years through ten years	1,018
Estimated fair value	$ 254,831