Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2024

Accumulated Other Comprehensive Loss

Schedule of changes in accumulated other comprehensive income (loss)

			Income
			Tax
	Pre-tax		Benefit		Net of
(dollars in thousands)	Amount		(Expense)		Tax
Accumulated other comprehensive loss at June 30, 2024	$	(707,992)	$	188,860	$	(519,132)
Three months ended September 30, 2024
Investment securities:
Unrealized net gains arising during the period		76,226		(20,333)		55,893
Reclassification of net losses to net income:
Amortization of unrealized holding losses on held-to-maturity securities		13,922		(3,714)		10,208
Net change in investment securities		90,148		(24,047)		66,101
Cash flow derivative hedges:
Unrealized net gains arising during the period		501		(133)		368
Reclassification of net losses included in net income		7		(2)		5
Net change in cash flow derivative hedges		508		(135)		373
Other comprehensive income		90,656		(24,182)		66,474
Accumulated other comprehensive loss at September 30, 2024	$	(617,336)	$	164,678	$	(452,658)

			Income
			Tax
	Pre-tax		Benefit		Net of
(dollars in thousands)	Amount		(Expense)		Tax
Accumulated other comprehensive loss at December 31, 2023	$	(723,100)	$	192,890	$	(530,210)
Nine months ended September 30, 2024
Investment securities:
Unrealized net gains arising during the period		68,517		(18,277)		50,240
Reclassification of net losses to net income:
Amortization of unrealized holding losses on held-to-maturity securities		35,747		(9,535)		26,212
Net change in investment securities		104,264		(27,812)		76,452
Cash flow derivative hedges:
Unrealized net losses arising during the period		(325)		87		(238)
Reclassification of net losses included in net income		1,825		(487)		1,338
Net change in cash flow derivative hedges		1,500		(400)		1,100
Other comprehensive income		105,764		(28,212)		77,552
Accumulated other comprehensive loss at September 30, 2024	$	(617,336)	$	164,678	$	(452,658)

			Income
			Tax
	Pre-tax		Benefit		Net of
(dollars in thousands)	Amount		(Expense)		Tax
Accumulated other comprehensive loss at June 30, 2023	$	(835,647)	$	222,911	$	(612,736)
Three months ended September 30, 2023
Investment securities:
Unrealized net losses arising during the period		(61,874)		16,505		(45,369)
Reclassification of net losses to net income:
Amortization of unrealized holding losses on held-to-maturity securities		11,434		(3,050)		8,384
Net change in investment securities		(50,440)		13,455		(36,985)
Cash flow derivative hedges:
Unrealized net losses arising during the period		(373)		100		(273)
Reclassification of net losses included in net income		1,723		(460)		1,263
Net change in cash flow derivative hedges		1,350		(360)		990
Other comprehensive loss		(49,090)		13,095		(35,995)
Accumulated other comprehensive loss at September 30, 2023	$	(884,737)	$	236,006	$	(648,731)

			Income
			Tax
	Pre-tax		Benefit		Net of
(dollars in thousands)	Amount		(Expense)		Tax
Accumulated other comprehensive loss at December 31, 2022	$	(871,813)	$	232,559	$	(639,254)
Nine months ended September 30, 2023
Investment securities:
Unrealized net losses arising during the period		(50,861)		13,567		(37,294)
Reclassification of net losses to net income:
Amortization of unrealized holding losses on held-to-maturity securities		36,206		(9,658)		26,548
Net change in investment securities		(14,655)		3,909		(10,746)
Cash flow derivative hedges:
Unrealized net losses arising during the period		(2,868)		765		(2,103)
Reclassification of net losses included in net income		4,599		(1,227)		3,372
Net change in cash flow derivative hedges		1,731		(462)		1,269
Other comprehensive loss		(12,924)		3,447		(9,477)
Accumulated other comprehensive loss at September 30, 2023	$	(884,737)	$	236,006	$	(648,731)

Summary of changes in accumulated other comprehensive loss, net of tax

	Pensions								Accumulated
	and		Available-for-Sale		Held-to-Maturity		Cash Flow		Other
	Other		Investment		Investment		Derivative		Comprehensive
(dollars in thousands)	Benefits		Securities		Securities		Hedges		Loss
Three Months Ended September 30, 2024
Balance at beginning of period	$	(5,373)	$	(228,076)	$	(285,607)	$	(76)	$	(519,132)
Other comprehensive income		—		55,893		10,208		373		66,474
Balance at end of period	$	(5,373)	$	(172,183)	$	(275,399)	$	297	$	(452,658)
Nine Months Ended September 30, 2024
Balance at beginning of period	$	(5,373)	$	(222,423)	$	(301,611)	$	(803)	$	(530,210)
Other comprehensive income		—		50,240		26,212		1,100		77,552
Balance at end of period	$	(5,373)	$	(172,183)	$	(275,399)	$	297	$	(452,658)
Three Months Ended September 30, 2023
Balance at beginning of period	$	(5,431)	$	(284,100)	$	(318,782)	$	(4,423)	$	(612,736)
Other comprehensive (loss) income		—		(45,369)		8,384		990		(35,995)
Balance at end of period	$	(5,431)	$	(329,469)	$	(310,398)	$	(3,433)	$	(648,731)
Nine Months Ended September 30, 2023
Balance at beginning of period	$	(5,431)	$	(292,175)	$	(336,946)	$	(4,702)	$	(639,254)
Other comprehensive (loss) income		—		(37,294)		26,548		1,269		(9,477)
Balance at end of period	$	(5,431)	$	(329,469)	$	(310,398)	$	(3,433)	$	(648,731)