Accumulated Other Comprehensive (Loss) Income, Net of Tax (Tables)

6 Months Ended

Jun. 30, 2022

Equity [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Loss by Component

The following table summarizes the changes in each component of accumulated other comprehensive (loss) income, net of tax:

	Three months ended June 30, 2022								Six months ended June 30, 2022
(In thousands)	Securities Available For Sale		Derivative Instruments		Defined Benefit Pension and Other Postretirement Benefit Plans		Total		Securities Available For Sale		Derivative Instruments		Defined Benefit Pension and Other Postretirement Benefit Plans		Total
Balance, beginning of period	$	(240,343)	$	(1,774)	$	(33,606)	$	(275,723)	$	4,536	$	6,070	$	(33,186)	$	(22,580)
Other comprehensive (loss) before reclassifications	(205,273)		(1,070)		(328)		(206,671)		(450,152)		(9,683)		(1,047)		(460,882)
Amounts reclassified from accumulated other comprehensive (loss) income	—		762		300		1,062		—		1,531		599		2,130
Other comprehensive (loss), net of tax	(205,273)		(308)		(28)		(205,609)		(450,152)		(8,152)		(448)		(458,752)
Balance, end of period	$	(445,616)	$	(2,082)	$	(33,634)	$	(481,332)	$	(445,616)	$	(2,082)	$	(33,634)	$	(481,332)

	Three months ended June 30, 2021								Six months ended June 30, 2021
(In thousands)	Securities Available For Sale		Derivative Instruments		Defined Benefit Pension and Other Postretirement Benefit Plans		Total		Securities Available For Sale		Derivative Instruments		Defined Benefit Pension and Other Postretirement Benefit Plans		Total
Balance, beginning of period	$	37,071	$	15,546	$	(44,343)	$	8,274	$	67,424	$	19,918	$	(45,086)	$	42,256
Other comprehensive (loss) before reclassifications	(1,473)		(2,475)		—		(3,948)		(31,826)		(7,645)		—		(39,471)
Amounts reclassified from accumulated other comprehensive income (loss)	—		823		741		1,564		—		1,621		1,484		3,105
Other comprehensive (loss) income, net of tax	(1,473)		(1,652)		741		(2,384)		(31,826)		(6,024)		1,484		(36,366)
Balance, end of period	$	35,598	$	13,894	$	(43,602)	$	5,890	$	35,598	$	13,894	$	(43,602)	$	5,890

Schedule of Accumulated Other Comprehensive Loss

The following table further summarizes the amounts reclassified from accumulated other comprehensive (loss) income:

Accumulated Other Comprehensive (Loss) Income Components	Three months ended June 30,				Six months ended June 30,				Associated Line Item on the Condensed Consolidated Statements of Income
	2022		2021		2022		2021
(In thousands)
Derivative instruments:
Hedge terminations	$	(76)	$	(77)	$	(153)	$	(153)	Interest expense
Premium amortization	(969)		(1,037)		(1,947)		(2,042)		Interest income
Tax benefit	283		291		569		574		Income tax expense
Net of tax	$	(762)	$	(823)	$	(1,531)	$	(1,621)
Defined benefit pension and other postretirement benefit plans:
Actuarial loss amortization	$	(411)	$	(1,007)	$	(822)	$	(2,015)	Other non-interest expense
Tax benefit	111		266		223		531		Income tax expense
Net of tax	$	(300)	$	(741)	$	(599)	$	(1,484)