Investment Securities, Available-for-sale Securities, Gross Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Available for sale securities unrealized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	$ 21,207	$ 159,044
12 months or more - Fair Value	421,440	46,544
Total - Fair Value	442,647	205,588
Available for sale securities unrealized loss position - Gross Unrealized Loss [Abstract]
Less than 12 months - Gross Unrealized Loss	327	2,757
12 months or more - Gross Unrealized Loss	48,722	1,142
Total - Gross Unrealized Loss	49,049	3,899
Available-for-sale, allowance for credit loss	0
U. S. Government Sponsored Enterprises [Member]
Available for sale securities unrealized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	14,890	49,279
12 months or more - Fair Value	104,083	9,900
Total - Fair Value	118,973	59,179
Available for sale securities unrealized loss position - Gross Unrealized Loss [Abstract]
Less than 12 months - Gross Unrealized Loss	110	697
12 months or more - Gross Unrealized Loss	5,119	100
Total - Gross Unrealized Loss	5,229	797
Mortgage-Backed Securities and Collateralized Mortgage Obligations - Residential [Member]
Available for sale securities unrealized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	6,283	93,447
12 months or more - Fair Value	222,483	22,098
Total - Fair Value	228,766	115,545
Available for sale securities unrealized loss position - Gross Unrealized Loss [Abstract]
Less than 12 months - Gross Unrealized Loss	214	1,888
12 months or more - Gross Unrealized Loss	38,080	588
Total - Gross Unrealized Loss	38,294	2,476
Corporate Bonds [Member]
Available for sale securities unrealized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	0	15,670
12 months or more - Fair Value	76,935	14,546
Total - Fair Value	76,935	30,216
Available for sale securities unrealized loss position - Gross Unrealized Loss [Abstract]
Less than 12 months - Gross Unrealized Loss	0	171
12 months or more - Gross Unrealized Loss	3,335	454
Total - Gross Unrealized Loss	3,335	625
Small Business Administration-Guaranteed Participation Securities [Member]
Available for sale securities unrealized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	0
12 months or more - Fair Value	17,316
Total - Fair Value	17,316
Available for sale securities unrealized loss position - Gross Unrealized Loss [Abstract]
Less than 12 months - Gross Unrealized Loss	0
12 months or more - Gross Unrealized Loss	2,161
Total - Gross Unrealized Loss	2,161
Other [Member]
Available for sale securities unrealized loss position - Fair Value [Abstract]
Less than 12 months - Fair Value	34	648
12 months or more - Fair Value	623	0
Total - Fair Value	657	648
Available for sale securities unrealized loss position - Gross Unrealized Loss [Abstract]
Less than 12 months - Gross Unrealized Loss	3	1
12 months or more - Gross Unrealized Loss	27	0
Total - Gross Unrealized Loss	$ 30	$ 1