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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)

3 Months Ended

Mar. 31, 2023

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of components of other comprehensive income (loss)

The following tables present the components of other comprehensive income (loss) ("AOCI") for the three months ended March 31, 2023 and 2022, by component:

(dollars in thousands)						Before Tax						Tax Effect						Net of Tax
Three Months Ended March 31, 2023
Net change in fair value of investment securities:
Net unrealized gains on AFS investment securities arising during the period						$	15,258					$	4,052					$	11,206
Less: Amortization of unrealized losses on investment securities transferred to HTM						1,668						443						1,225
Net change in fair value of investment securities						16,926						4,495						12,431
Net change in fair value of derivatives:
Net unrealized losses arising during the period						(1,599)						(436)						(1,163)
Net change in fair value of derivatives						(1,599)						(436)						(1,163)
SERPs:
Amortization of net actuarial loss						(19)						(5)						(14)
Amortization of net transition obligation						2						—						2
SERPs						(17)						(5)						(12)
Other comprehensive income						$	15,310					$	4,054					$	11,256

(dollars in thousands)						Before Tax						Tax Effect						Net of Tax
Three Months Ended March 31, 2022
Net change in fair value of investment securities:
Net unrealized losses on AFS investment securities arising during the period						$	(108,448)					$	(28,998)					$	(79,450)
Net change in fair value of investment securities						(108,448)						(28,998)						(79,450)
Net change in fair value of derivatives:
Net unrealized losses arising during the period						$	(50)					$	(13)					$	(37)
Net change in fair value of derivatives						(50)						(13)						(37)
Defined benefit retirement plan and SERPs:
Amortization of net actuarial loss						133						36						97
Amortization of net transition obligation						4						1						3
Defined benefit retirement plan and SERPs						137						37						100
Other comprehensive loss						$	(108,361)					$	(28,974)					$	(79,387)

Schedule of changes in each component of AOCI, net of tax

The following tables present the changes in each component of AOCI, net of tax, for the three months ended March 31, 2023 and 2022:

(dollars in thousands)						Investment Securities						Derivatives						SERPs [1]						AOCI
Three Months Ended March 31, 2023
Balance at beginning of period						$	(149,109)					$	4,645					$	480					$	(143,984)
Other comprehensive income (loss) before reclassifications						11,206						(1,163)						—						10,043
Reclassification adjustments from AOCI						1,225						—						(12)						1,213
Total other comprehensive income (loss)						12,431						(1,163)						(12)						11,256
Balance at end of period						$	(136,678)					$	3,482					$	468					$	(132,728)

(dollars in thousands)						Investment Securities						Derivatives						Defined Benefit Retirement Plan and SERPs [1]						AOCI
Three Months Ended March 31, 2022
Balance at beginning of period						$	(3,666)					$	—					$	(4,294)					$	(7,960)
Other comprehensive loss before reclassifications						(79,450)						(37)						—						(79,487)
Reclassification adjustments from AOCI						—						—						100						100
Total other comprehensive (loss) income						(79,450)						(37)						100						(79,387)
Balance at end of period						$	(83,116)					$	(37)					$	(4,194)					$	(87,347)

[1] During the second quarter of 2022, the Company settled all obligations related to its defined benefit retirement plan. As a result, all subsequent activity in the Company's AOCI balance related to the defined benefit retirement plan and SERPs relates entirely to SERPs.

Schedule of amounts reclassified out of each component of AOCI

The following table presents the amounts reclassified out of each component of AOCI for the three months ended March 31, 2023 and 2022:

						Amount Reclassified from AOCI												Affected Line Item in the Statement Where Net Income is Presented
(dollars in thousands)						Three Months Ended March 31,
Details about AOCI Components						2023						2022
Amortization of unrealized losses on investment securities transferred to held-to-maturity:
Amortization						$	(1,668)					$	—					Interest and dividends on investment securities
Tax effect						443						—						Income tax expense
Net of tax						$	(1,225)					$	—
Defined benefit retirement and supplemental executive retirement plan items:
Amortization of net actuarial gain (loss)						$	19					$	(133)					Other operating expense - other
Amortization of net transition obligation						(2)						(4)						Other operating expense - other
Total before tax						17						(137)
Tax effect						(5)						37						Income tax benefit (expense)
Net of tax						$	12					$	(100)
Total reclassification adjustments from AOCI for the period, net of tax						$	(1,213)					$	(100)

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Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss).

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Tabular disclosure of the components of accumulated other comprehensive income (loss).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-URI https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900

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Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
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