TAX EFFECT ALLOCATED TO EACH COMPONENT OF OTHER COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Income and Comprehensive Income
Adjustment of pension and postretirement benefit plans	$ 0	$ 0	$ (761)	$ 0
Amortization of net losses of pension and postretirement benefit plans	(1,467)	(1,945)	(4,401)	(5,840)
Unrealized holding losses on debt securities arising during the period	94,956	8,264	295,326	31,760
Reclassification adjustment for gains included in net income	0	5	0	5
Unrealized net gains (losses) on cash flow hedges	23	256	(681)	(238)
Reclassification adjustment for net losses (gains) included in net income	(310)	(460)	468	(319)
Income tax benefit	$ 93,202	$ 6,120	$ 289,951	$ 25,368

Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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-Section 45
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Tax effect of plan amendments that occurred that has not been recognized in net periodic benefit cost.

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount, before adjustment, of tax expense (benefit) for unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

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