Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders' Equity Note [Abstract]

Schedule of tax effect allocated to each component of other comprehensive income

The tax effect allocated to each component of other comprehensive income (loss) were as follows:

December 31, 2020	Before-Tax Amount		Tax (Expense) Benefit		Net of Tax
Available-for-sale securities:
(In thousands)
Change in net unrealized gain during the period	$	22,381	$	(5,487)	$	16,894
Reclassification adjustment for net realized gain on sale included in available-for-sale securities	(430)		106		(324)
Net unrealized gains	21,951		(5,381)		16,570
Employee benefit plans:
Net retirement plan loss	(9,309)		2,281		(7,028)
Amortization of net retirement plan actuarial gain	2,366		(580)		1,786
Amortization of net retirement plan prior service (cost) credit	214		(52)		162
Employee benefit plans	(6,729)		1,649		(5,080)
Other comprehensive income	$	15,222	$	(3,732)	$	11,490

December 31, 2019	Before-Tax Amount		Tax (Expense) Benefit		Net of Tax
Available-for-sale securities:
(In thousands)
Change in net unrealized loss during the period	$	33,431	$	(8,190)	$	25,241
Unrealized gains on HTM securities transferred to AFS securities	3,777		(925)		2,852
Reclassification adjustment for net realized loss on sale included in available-for-sale securities	(616)		151		(465)
Net unrealized gains	36,592		(8,964)		27,628
Employee benefit plans:
Net retirement plan loss	(10,122)		2,480		(7,642)
Net actuarial gain due to curtailment	(399)		97		(302)
Net retirement plan prior service credit	(1,819)		446		(1,373)
Amortization of net retirement plan actuarial gain	1,677		(411)		1,266
Amortization of net retirement plan prior service (cost) credit	32		(8)		24
Employee benefit plans	(10,631)		2,604		(8,027)
Other comprehensive income	$	25,961	$	(6,360)	$	19,601

December 31, 2018	Before-Tax Amount		Tax (Expense) Benefit		Net of Tax
Available-for-sale securities:
(In thousands)
Change in net unrealized loss during the period	$	(14,550)	$	3,569	$	(10,981)
Reclassification adjustment for net realized loss on sale included in available-for-sale securities	440		(108)		332
Net unrealized losses	(14,110)		3,461		(10,649)
Employee benefit plans:
Net retirement plan loss	(3,437)		843		(2,594)
Amortization of net retirement plan actuarial loss	1,719		(421)		1,298
Amortization of net retirement plan prior service (cost) credit	15		(4)		11
Employee benefit plans	(1,703)		418		(1,285)
Other comprehensive loss	$	(15,813)	$	3,879	$	(11,934)

Schedule of accumulated other comprehensive income

The following table presents the activity in our accumulated other comprehensive loss for the periods indicated:

(In thousands)	Available-for-Sale Securities		Employee Benefit Plans		Accumulated Other Comprehensive Income (loss)
Balance at January 1, 2018	$	(13,005)	$	(38,291)	$	(51,296)
Other comprehensive loss	(10,649)		(1,285)		(11,934)
Adoption of ASU 2016-01	65		0		65
Balance at December 31, 2018	$	(23,589)	$	(39,576)	$	(63,165)
Balance at January 1, 2019	(23,589)		(39,576)		(63,165)
Other comprehensive income (loss)	27,628		(8,027)		19,601
Balance at December 31, 2019	$	4,039	$	(47,603)	$	(43,564)
Balance at January 1, 2020	4,039		(47,603)		(43,564)
Other comprehensive income (loss)	16,570		(5,080)		11,490
Balance at December 31, 2020	$	20,609	$	(52,683)	$	(32,074)

December 31, 2020
Details about Accumulated other Comprehensive Income Components (in thousands)	Amount Reclassified from Accumulated Other Comprehensive (Loss)1		Affected Line Item in the Statement Where Net Income is Presented
Available-for-sale securities:
Unrealized gains and losses on available-for-sale securities	$	430	Net (loss) gain on securities transactions
	(106)		Tax expense
	324		Net of tax
Employee benefit plans:
Amortization of the following2
Net retirement plan actuarial gain	(2,366)		Other operating expense
Net retirement plan prior service credit	(214)		Other operating expense
	(2,580)		Total before tax
	632		Tax benefit
	$	(1,948)	Net of tax

December 31, 2019
Details about Accumulated other Comprehensive Income Components (in thousands)	Amount Reclassified from Accumulated Other Comprehensive (Loss)1		Affected Line Item in the Statement Where Net Income is Presented
Available-for-sale securities:
Unrealized gains and losses on available-for-sale securities	$	616	Net (loss) gain on securities transactions
	(151)		Tax benefit
	465		Net of tax
Employee benefit plans:
Amortization of the following2
Net retirement plan actuarial gain	(1,677)		Other operating expense
Net retirement plan prior service credit	(32)		Other operating expense
	(1,709)		Total before tax
	419		Tax benefit
	$	(1,290)	Net of tax

1 Amounts in parentheses indicate debits in income statement.

2 The accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost (See Note 11 - “Employee Benefit Plans”).