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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2024

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The components of income tax expense (benefit) for the years ended December 31, are as follows:

			Year ended December 31,
($ in thousands)			2024						2023						2022
Current:
Federal			$	41,477					$	40,471					$	42,718
State and local			8,022						9,616						11,505
Total current			49,499						50,087						54,223
Deferred:
Federal			(2,535)						283						1,853
State and local			(986)						2,097						341
Total deferred			(3,521)						2,380						2,194
Total income tax expense			$	45,978					$	52,467					$	56,417

Schedule of Income Tax Rate Reconciliation

A reconciliation of expected income tax expense, computed by applying the statutory federal income tax rate to income before income taxes reflected in the Consolidated Statements of Income is as follows:

			Year ended December 31,
($ in thousands)			2024						2023						2022
Income tax expense at statutory rate			$	48,561					$	51,770					$	54,487
Increase (reduction) in income tax resulting from:
Tax-exempt interest income, net			(5,124)						(4,942)						(4,351)
State and local income taxes, net			7,334						9,445						9,767
Bank-owned life insurance			(892)						(888)						(545)
Non-deductible expenses			1,524						2,059						926
Tax benefit of low-income housing tax credit ("LIHTC") investments, net			285						(56)						(195)
Excess tax benefits			28						(251)						(68)
Federal tax credits			(5,619)						(4,364)						(3,661)
Other, net			(119)						(306)						57
Total income tax expense			$	45,978					$	52,467					$	56,417

Schedule of Deferred Tax Assets and Deferred Tax Liabilities

The tax effect of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities is as follows:

			Year ended December 31,
($ in thousands)			2024						2023
Deferred tax assets:
Allowance for loan losses			$	34,212					$	33,423
Loans held-for-sale			3,304						4,463
Other real estate			39						—
Deferred compensation			5,209						4,746
Accrued compensation			6,265						6,047
Unrealized losses on securities, net			38,734						33,687
Net operating losses and tax credits			5,299						5,544
Lease liability accrual			6,485						7,101
Other investments			5,587						5,341
Research and experimental expenses			1,473						1,944
Fixed assets			2,802						2,341
Deferred expenses			3,021						1,158
Other deferred tax assets			3,248						3,665
Total deferred tax assets			115,678						109,460
Deferred tax liabilities:
Acquired loans			1,922						2,388
Intangible assets			8,756						8,576
Right of use asset			5,644						6,301
Other investments			10,233						11,834
Other deferred tax liabilities			951						841
Total deferred tax liabilities			27,506						29,940
Net deferred tax asset before valuation allowance			88,172						79,520
Less: valuation allowance			2,812						2,812
Net deferred tax asset			$	85,360					$	76,708

Schedule of Unrecognized Tax Benefits

The activity in the gross liability for unrecognized tax benefits was as follows:

($ in thousands)			2024						2023						2022
Balance at beginning of year			$	3,077					$	2,724					$	2,697
Additions based on tax positions related to the current year			1,212						727						683
Additions for tax positions of prior years			1,128						24						47
Settlements for tax positions of prior years			—						—						(82)
Settlements or lapse of statute of limitations			(401)						(398)						(621)
Balance at end of year			$	5,016					$	3,077					$	2,724

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of the change in unrecognized tax benefits.

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