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Accumulated Other Comprehensive (Loss) Income (Tables)

9 Months Ended

Sep. 30, 2025

Equity [Abstract]

Changes in other comprehensive income (loss)

The following table presents the components of OCI:

			Before-Tax Amount						Tax Effect						Net of Tax Amount
			(dollars in thousands)
Three months ended September 30, 2025
Net unrealized gains on investment securities(1)			$	49,911					$	(11,305)					$	38,606
Amortization of net unrealized gains on AFS investment securities transferred to HTM(2)			1,719						(389)						1,330
Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges			(373)						84						(289)
Reclassification adjustment for net change realized in net income on interest rate derivatives used in cash flow hedges			5,929						(1,343)						4,586
Amortization of net unrecognized pension and postretirement items(3)			(139)						33						(106)
Total Other Comprehensive Income			$	57,047					$	(12,920)					$	44,127
Three months ended September 30, 2024
Net unrealized gains on investment securities(1)			$	88,637					$	(20,077)					$	68,560
Reclassification adjustment for securities net change included in net income(2)			1						—						1
Amortization of net unrealized gains on AFS investment securities transferred to HTM(2)			1,837						(415)						1,422
Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges			(8,564)						1,940						(6,624)
Reclassification adjustment for net change realized in net income on interest rate derivatives used in cash flow hedges			5,144						(1,165)						3,979
Amortization of net unrecognized pension and postretirement items(3)			(135)						29						(106)
Total Other Comprehensive Income			$	86,920					$	(19,688)					$	67,232
Nine months ended September 30, 2025
Net unrealized gains on investment securities(1)			$	55,615					$	(12,597)					$	43,018
Reclassification adjustment for securities net change included in net income(2)			2						—						2
Amortization of net unrealized gains on AFS investment securities transferred to HTM(2)			5,171						(1,171)						4,000
Net unrealized holding gains arising during the period on interest rate derivatives used in cash flow hedges			1,964						(445)						1,519
Reclassification adjustment for net change realized in net income on interest rate swaps used in cash flow hedges			15,587						(3,531)						12,056
Amortization of net unrecognized pension and postretirement item(3)			(411)						93						(318)
Total Other Comprehensive Income			$	77,928					$	(17,651)					$	60,277
Nine months ended September 30, 2024
Net unrealized gains on investment securities(1)			$	48,735					$	(11,039)					$	37,696
Reclassification adjustment for securities net change included in net income(2)			20,283						(4,594)						15,689
Amortization of net unrealized gains on AFS investment securities transferred to HTM(2)			5,445						(1,233)						4,212
Net unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges			(92)						21						(71)
Reclassification adjustment for change realized in net income on interest rate swaps used in cash flow hedges			15,158						(3,389)						11,769
Amortization of net unrecognized pension and postretirement items(3)			(406)						89						(317)
Total Other Comprehensive Income			$	89,123					$	(20,145)					$	68,978

(1) Amounts reclassified out of AOCI. Before-tax amounts included in "Investment securities (losses) gains, net" on the Consolidated Statements of Income.

(2) Amounts reclassified out of AOCI. Before-tax amounts included as a reduction to "Interest Income - Investment Securities" in on the Consolidated

Statements of Income.

(3) Amounts reclassified out of AOCI. Before-tax amounts included in "Salaries and employee benefits" on the Consolidated Statements of Income.

Changes in each component of accumulated other comprehensive income (loss)

The following table presents changes in each component of AOCI, net of tax:

			Unrealized Gains (Losses) on Investment Securities						Net Unrealized Gain (Loss) on Interest Rate Derivatives used in Cash Flow Hedges												Unrecognized Pension and Postretirement Plan Income (Costs)						Total
			(dollars in thousands)
Three months ended September 30, 2025
Balance at June 30, 2025			$	(268,905)					$	(6,774)											$	4,010					$	(271,669)
OCI before reclassifications			38,606						(289)												—						38,317
Amounts reclassified from AOCI			—						4,586												(106)						4,480
Amortization of net unrealized gains on AFS investment securities transferred to HTM			1,330						—												—						1,330
Balance at September 30, 2025			$	(228,969)					$	(2,477)											$	3,904					$	(227,542)
Three months ended September 30, 2024
Balance at June 30, 2024			$	(287,248)					$	(20,440)											$	(2,846)					$	(310,534)
OCI before reclassifications			68,560						(6,624)												—						61,936
Amounts reclassified from AOCI			1						3,979												(106)						3,874
Amortization of net unrealized gains on AFS investment securities transferred to HTM			1,422						—												—						1,422
Balance at September 30, 2024			$	(217,265)					$	(23,085)											$	(2,952)					$	(243,302)
Nine months ended September 30, 2025
Balance at December 31, 2024			$	(275,989)					$	(16,052)											$	4,222					$	(287,819)
OCI before reclassifications			43,018						1,519												—						44,537
Amounts reclassified from AOCI			2						12,056												(318)						11,740
Amortization of net unrealized gains on AFS investment securities transferred to HTM			4,000						—												—						4,000
Balance at September 30, 2025			$	(228,969)					$	(2,477)											$	3,904					$	(227,542)
Nine months ended September 30, 2024
Balance at December 31, 2023			$	(274,862)					$	(34,783)											$	(2,635)					$	(312,280)
OCI before reclassifications			37,696						(71)												—						37,625
Amounts reclassified from AOCI			15,689						11,769												(317)						27,141
Amortization of net unrealized gains on AFS investment securities transferred to HTM			4,212						—												—						4,212
Balance at September 30, 2024			$	(217,265)					$	(23,085)											$	(2,952)					$	(243,302)

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481694/830-30-45-20

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Paragraph 1
-Section 45
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-1

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