Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2023

Stockholders' Equity Note [Abstract]

Components of Accumulated Other Comprehensive Income (Loss)

A roll-forward of the components of Accumulated Other Comprehensive Income (Loss) is presented in the table that follows:

	Available for Sale Securities			HTM Securities Transferred from AFS			Employee Benefit Plans			Cash Flow Hedges			Equity Method Investment			Total
($ in thousands)
Balance, December 31, 2021	$	11,037		$	153		$	(80,946	)	$	16,284		$	(463	)	$	(53,935	)
Net change in unrealized gain (loss)		(547,636	)		—			—			(47,287	)		468			(594,455	)
Reclassification of net income or loss realized and included in earnings		1,707			—			1,652			(12,767	)		—			(9,408	)
Valuation adjustments to employee benefit plans		—			—			(7,987	)		—			—			(7,987	)
Transfer of net unrealized loss from AFS to HTM securities portfolio		15,405			(15,405	)		—			—			—			—
Amortization of unrealized net loss on securities transferred to HTM		—			527			—			—			—			527
Income tax benefit		119,739			3,358			1,430			13,554			—			138,081
Balance, June 30, 2022	$	(399,748	)	$	(11,367	)	$	(85,851	)	$	(30,216	)	$	5		$	(527,177	)
Balance, December 31, 2022	$	(584,408	)	$	(10,734	)	$	(97,952	)	$	(79,093	)	$	5		$	(772,182	)
Net change in unrealized gain (loss)		17,678			—			—			(20,943	)		706			(2,559	)
Reclassification of net loss realized and included in earnings		—			—			3,272			17,493			—			20,765
Valuation adjustments to employee benefit plans		—			—			(7,521	)		—			—			(7,521	)
Amortization of unrealized net loss on securities transferred to HTM		—			922			—			—			—			922
Income tax (expense) benefit		(3,737	)		(207	)		956			777			—			(2,211	)
Balance, June 30, 2023	$	(570,467	)	$	(10,019	)	$	(101,245	)	$	(81,766	)	$	711		$	(762,786	)

Line Items in Consolidated Income Statements Affected by Amounts Reclassified from Accumulated Other Comprehensive Income

The following table shows the line items in the consolidated statements of income affected by amounts reclassified from AOCI.

	Six Months Ended
Amount reclassified from AOCI (a)	June 30,						Affected line item on
($ in thousands)	2023			2022			the statement of income
Loss on sale of AFS securities	$	—		$	(1,707	)	Noninterest income
Tax effect		—			385		Income taxes
Net of tax		—			(1,322	)	Net income
Amortization of unrealized net loss on securities transferred to HTM		(922	)		(527	)	Interest income
Tax effect		207			119		Income taxes
Net of tax		(715	)		(408	)	Net income
Amortization of defined benefit pension and post-retirement items		(3,272	)		(1,652	)	Other noninterest expense (b)
Tax effect		736			373		Income taxes
Net of tax		(2,536	)		(1,279	)	Net income
Reclassification of unrealized gain/(loss) on cash flow hedges		(21,994	)		6,977		Interest income
Tax effect		4,953			(1,575	)	Income taxes
Net of tax		(17,041	)		5,402		Net income
Amortization of gain on terminated cash flow hedges		4,501			5,790		Interest income
Tax effect		(1,014	)		(1,307	)	Income taxes
Net of tax		3,487			4,483		Net income
Total reclassifications, net of tax		(16,805	)		6,876		Net income

(a)Amounts in parentheses indicate reduction in net income.

(b)These AOCI components are included in the computation of net periodic pension and post-retirement cost that is reported with other noninterest
expense (see Note 10 – Retirement Plans for additional details).