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AFS Securities (Tables)

6 Months Ended

Jun. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Amortized cost and fair value of available-for-sale securities

The amortized cost and fair value of AFS securities, with gross unrealized gains and losses, are as follows at:

			June 30, 2022
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
U.S. Treasury			$	231,824					$	—					$	17,350					$	214,474
States and political subdivisions			122,838						671						3,860						119,649
Auction rate money market preferred			3,200						—						703						2,497
Mortgage-backed securities			47,483						2						1,689						45,796
Collateralized mortgage obligations			172,802						9						5,239						167,572
Corporate			8,150						—						548						7,602
Total			$	586,297					$	682					$	29,389					$	557,590

			December 31, 2021
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
U.S. Treasury			$	212,379					$	—					$	2,676					$	209,703
States and political subdivisions			116,836						4,457						88						121,205
Auction rate money market preferred			3,200						42						—						3,242
Mortgage-backed securities			54,710						1,438						—						56,148
Collateralized mortgage obligations			90,435						1,876						10						92,301
Corporate			8,150						19						167						8,002
Total			$	485,710					$	7,832					$	2,941					$	490,601

Amortized cost and fair value of available-for-sale securities by contractual maturity

The amortized cost and fair value of AFS securities by contractual maturity at June 30, 2022 are as follows:

			Maturing																								Securities with Variable Monthly Payments or Noncontractual Maturities
			Due in One Year or Less						After One Year But Within Five Years						After Five Years But Within Ten Years						After Ten Years												Total
U.S. Treasury			$	—					$	231,824					$	—					$	—					$	—					$	231,824
States and political subdivisions			16,183						46,692						21,595						38,368						—						122,838
Auction rate money market preferred			—						—						—						—						3,200						3,200
Mortgage-backed securities			—						—						—						—						47,483						47,483
Collateralized mortgage obligations			—						—						—						—						172,802						172,802
Corporate			—						—						8,150						—						—						8,150
Total amortized cost			$	16,183					$	278,516					$	29,745					$	38,368					$	223,485					$	586,297
Fair value			$	16,227					$	261,358					$	28,757					$	35,383					$	215,865					$	557,590

Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value

The following information pertains to AFS securities with gross unrealized losses at June 30, 2022 and December 31, 2021, aggregated by investment category and length of time that individual securities have been in a continuous loss position.

			June 30, 2022
			Less Than Twelve Months												Twelve Months or More
			Gross Unrealized Losses						Fair Value						Gross Unrealized Losses						Fair Value						Total Unrealized Losses
U.S. Treasury			$	17,350					$	214,474					$	—					$	—					$	17,350
States and political subdivisions			3,081						39,328						779						14,657						3,860
Auction rate money market preferred			—						—						703						2,497						703
Mortgage-backed securities			1,689						45,646						—						—						1,689
Collateralized mortgage obligations			5,239						159,005						—						—						5,239
Corporate			487						5,963						61						1,639						548
Total			$	27,846					$	464,416					$	1,543					$	18,793					$	29,389
Number of securities in an unrealized loss position:									144												80						224

			December 31, 2021
			Less Than Twelve Months												Twelve Months or More
			Gross Unrealized Losses						Fair Value						Gross Unrealized Losses						Fair Value						Total Unrealized Losses
U.S. Treasury			$	2,676					$	209,703					$	—					$	—					$	2,676
States and political subdivisions			88						9,674						—						—						88
Collateralized mortgage obligations			10						11,165						—						—						10
Corporate			167						6,283						—						—						167
Total			$	2,941					$	236,825					$	—					$	—					$	2,941
Number of securities in an unrealized loss position:									40												—						40

X

- Definition

Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455

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- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

+ References

No definition available.

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- Definition

Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

+ References

No definition available.

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