Securities, Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Available for sale, amortized cost [Abstract]
Due in one year or less	$ 29,874
Due after one through five years	267,190
Due after five through ten years	250,194
Due after ten years	198,067
Amortized cost	1,430,605	$ 1,461,829
Available for sale, fair value [Abstract]
Due in one year or less	29,242
Due after one through five years	244,404
Due after five through ten years	218,508
Due after ten years	154,880
Fair value	1,256,226	1,455,429
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Available for sale, amortized cost [Abstract]
Without single maturity date	593,917
Amortized cost	593,917	733,467
Available for sale, fair value [Abstract]
Without single maturity date	520,085
Fair value	520,085	730,809
Asset-backed Securities [Member]
Available for sale, amortized cost [Abstract]
Without single maturity date	91,363
Amortized cost	91,363	94,538
Available for sale, fair value [Abstract]
Without single maturity date	89,107
Fair value	$ 89,107	$ 94,647

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-Publisher FASB
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