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Accumulated Other Comprehensive Income (Loss)
9 Months Ended
Sep. 30, 2020
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
20202019
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$11,139 $(77)$(2,695)$8,367 $3,417 $91 $(2,741)$767 
OCI before reclassifications(66)20 — (46)1,724 (37)— 1,687 
Amounts reclassified from AOCI— — — — (6)— — (6)
Subtotal(66)20 — (46)1,718 (37)— 1,681 
Tax effect58 (4)54 (310)— (302)
OCI, net of tax(8)16 — 1,408 (29)— 1,379 
Balance, September 30$11,131 $(61)$(2,695)$8,375 $4,825 $62 $(2,741)$2,146 
Nine Months Ended September 30
20202019
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$4,612 $54 $(2,695)$1,971 $(5,200)$256 $(2,741)$(7,685)
OCI before reclassifications8,304 (145)— 8,159 12,554 (245)— 12,309 
Amounts reclassified from AOCI(71)— — (71)(6)— — (6)
Subtotal8,233 (145)— 8,088 12,548 (245)— 12,303 
Tax effect(1,714)30 — (1,684)(2,523)51 — (2,472)
OCI, net of tax6,519 (115)— 6,404 10,025 (194)— 9,831 
Balance, September 30$11,131 $(61)$(2,695)$8,375 $4,825 $62 $(2,741)$2,146 
Included in OCI for the three and nine-month periods ended September 30, 2020 and 2019 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
 20202019
Auction Rate Money Market Preferred StocksAll Other AFS SecuritiesTotalAuction Rate Money Market Preferred StocksAll Other AFS SecuritiesTotal
Unrealized gains (losses) arising during the period$215 $(281)$(66)$240 $1,484 $1,724 
Reclassification adjustment for net (gains) losses included in net income— — — — (6)(6)
Net unrealized gains (losses)215 (281)(66)240 1,478 1,718 
Tax effect— 58 58 — (310)(310)
Unrealized gains (losses), net of tax$215 $(223)$(8)$240 $1,168 $1,408 
 Nine Months Ended September 30
 20202019
Auction Rate Money Market Preferred StocksAll Other AFS SecuritiesTotalAuction Rate Money Market Preferred StocksAll Other AFS SecuritiesTotal
Unrealized gains (losses) arising during the period$75 $8,229 $8,304 $535 $12,019 $12,554 
Reclassification adjustment for net (gains) losses included in net income— (71)(71)— (6)(6)
Net unrealized gains (losses)75 8,158 8,233 535 12,013 12,548 
Tax effect— (1,714)(1,714)— (2,523)(2,523)
Unrealized gains (losses), net of tax$75 $6,444 $6,519 $535 $9,490 $10,025