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Investment Securities (Details 2) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Marketable Securities [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 393,667	$ 246,831
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	15,319	4,155
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	97,144	49,528
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	5,369	872
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value	490,811	296,359
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	20,688	5,027
US Treasury Securities [Member]
Marketable Securities [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	53,261	14,479
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	1,271	264
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	5,334	958
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	540	36
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value	58,595	15,437
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	1,811	300
US Government-sponsored Enterprises Debt Securities [Member]
Marketable Securities [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	2,317
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	182
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value	2,317
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	182
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Marketable Securities [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	261,976	200,238
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	8,929	3,156
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	86,207	48,570
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	4,211	836
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value	348,183	248,808
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	13,140	3,992
Small Business Administration pools [Member]
Marketable Securities [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	12,529	7,232
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	295	67
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	2,642
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	42
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value	15,171	7,232
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	337	67
US States and Political Subdivisions Debt Securities [Member]
Marketable Securities [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	59,077	21,261
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	4,392	539
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	2,961
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	576
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value	62,038	21,261
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	4,968	539
Corporate and other securities [Member]
Marketable Securities [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	4,507	3,621
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	250	129
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value	4,507	3,621
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	$ 250	$ 129

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-Name Accounting Standards Codification
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