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Accumulated Other Comprehensive Income (Loss)
9 Months Ended
Sep. 30, 2021
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income
The following table summarizes the changes in AOCI by component for the:
Three Months Ended September 30
20212020
Unrealized
Gains
(Losses) on
AFS
Securities
Unrealized
Gains
(Losses) on Derivative Instruments
Defined
Benefit
Pension Plan
TotalUnrealized
Gains
(Losses) on
AFS
Securities
Unrealized
Gains
(Losses) on Derivative Instruments
Defined
Benefit
Pension Plan
Total
Balance, July 1$8,469 $ $(2,745)$5,724 $11,139 $(77)$(2,695)$8,367 
OCI before reclassifications(1,690)— — (1,690)(66)20 — (46)
Tax effect353 — — 353 58 (4)54 
OCI, net of tax(1,337)— — (1,337)(8)16 — 
Balance, September 30$7,132 $ $(2,745)$4,387 $11,131 $(61)$(2,695)$8,375 
Nine Months Ended September 30
20212020
Unrealized
Gains
(Losses) on
AFS
Securities
Unrealized
Gains
(Losses) on Derivative Instruments
Defined
Benefit
Pension Plan
TotalUnrealized
Gains
(Losses) on
AFS
Securities
Unrealized
Gains
(Losses) on Derivative Instruments
Defined
Benefit
Pension Plan
Total
Balance, January 1$10,485 $(42)$(2,745)$7,698 $4,612 $54 $(2,695)$1,971 
OCI before reclassifications(4,247)53 — (4,194)8,304 (145)— 8,159 
Amounts reclassified from AOCI— — — — (71)— — (71)
Subtotal(4,247)53 — (4,194)8,233 (145)— 8,088 
Tax effect894 (11)— 883 (1,714)30 — (1,684)
OCI, net of tax(3,353)42 — (3,311)6,519 (115)— 6,404 
Balance, September 30$7,132 $ $(2,745)$4,387 $11,131 $(61)$(2,695)$8,375 
Included in OCI for the three and nine-month periods ended September 30, 2021 and 2020 are changes in unrealized gains and losses related to auction rate money market preferred stocks. These investments, for federal income tax purposes, have no deferred federal income taxes related to unrealized gains or losses given the nature of the investments.
A summary of the components of unrealized gains on AFS securities included in OCI follows for the:
Three Months Ended September 30
 20212020
Auction Rate Money Market Preferred StocksAll Other AFS SecuritiesTotalAuction Rate Money Market Preferred StocksAll Other AFS SecuritiesTotal
Unrealized gains (losses) arising during the period$(14)$(1,676)$(1,690)$215 $(281)$(66)
Tax effect— 353 353 — 58 58 
Unrealized gains (losses), net of tax$(14)$(1,323)$(1,337)$215 $(223)$(8)
 Nine Months Ended September 30
 20212020
Auction Rate Money Market Preferred StocksAll Other AFS SecuritiesTotalAuction Rate Money Market Preferred StocksAll Other AFS SecuritiesTotal
Unrealized gains (losses) arising during the period$$(4,256)$(4,247)$75 $8,229 $8,304 
Reclassification adjustment for net (gains) losses included in net income— — — — (71)(71)
Net unrealized gains (losses)(4,256)(4,247)75 8,158 8,233 
Tax effect— 894 894 — (1,714)(1,714)
Unrealized gains (losses), net of tax$9 $(3,362)$(3,353)$75 $6,444 $6,519