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Accumulated Other Comprehensive Income (Loss)
 12 Months Ended
Dec. 31, 2020
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss)
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The following table summarizes the changes in the balances of each component of accumulated other comprehensive income (loss), net of tax, as of December 31, 2020 and 2019:
Accumulated Other Comprehensive Income (Loss)
Unrealized Gains (Losses) on Securities Available for SaleUnrealized Gains (Losses) on Cash Flow HedgesUnrealized Gains (Losses) on Defined Benefit PlansTotal
Balance at December 31, 2019$38,872 $(1,141)$(9,857)$27,874 
Other comprehensive income before reclassifications58,513 (1,169)(1,767)55,577 
Amounts reclassified from accumulated other comprehensive income(9,397)716 66 (8,615)
Period change49,116 (453)(1,701)46,962 
Balance at December 31, 2020$87,988 $(1,594)$(11,558)$74,836 
Balance at December 31, 2018$(6,343)$(559)$(14,520)$(21,422)
Other comprehensive income before reclassifications48,703 (846)4,579 52,436 
Amounts reclassified from accumulated other comprehensive income(3,488)264 84 (3,140)
Period change45,215 (582)4,663 49,296 
Balance at December 31, 2019$38,872 $(1,141)$(9,857)$27,874 
The following table presents the reclassification adjustments out of accumulated other comprehensive income (loss) that were included in net income in the Consolidated Statements of Income for the years ended December 31, 2020, 2019 and 2018:
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) For the Year Ended December 31,
Details about Accumulated Other Comprehensive Income (Loss) Components202020192018Affected Line Item in the Statements of Income
Unrealized gains (losses) on available for sale securities (1)
Realized securities gains reclassified into income$11,895 $4,415 $4,269 Other income - net realized gains on sales of available for sale securities
Related income tax expense(2,498)(927)(896)Income tax expense
$9,397 $3,488 $3,373 
Unrealized gains (losses) on cash flow hedges (2)
Interest rate contracts$(906)$(334)$(470)Interest expense - subordinated debentures and term loans
Related income tax benefit190 70 99 Income tax expense
$(716)$(264)$(371)
Unrealized gains (losses) on defined benefit plans
Amortization of net loss and prior service costs$(84)$(106)$20 Other expenses - salaries and employee benefits
Related income tax benefit (expense)18 22 (4)Income tax expense
$(66)$(84)$16 
Total reclassifications for the period, net of tax$8,615 $3,140 3,018 


(1) For additional detail related to unrealized gains (losses) on available for sale securities and related amounts reclassified from accumulated other comprehensive income see NOTE 4. INVESTMENT SECURITIES.

(2) For additional detail related to unrealized gains (losses) on cash flow hedges and related amounts reclassified from accumulated other comprehensive income see NOTE 14. DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES.