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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2023
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense
The components of income tax expense (benefit) for the years ended December 31, 2023, 2022, and 2021 are as follows:
($ in thousands)202320222021
Current - Federal$24,750 35,616 25,742 
  - State3,857 4,477 3,733 
Deferred  - Federal(481)(1,658)(4,247)
  - State(301)(152)(553)
Total
$27,825 38,283 24,675 
Schedule of Effective Tax Rate Reconciliation
The following is a reconciliation of federal income tax expense at the statutory rate of 21% at December 31, 2023, December 31, 2022, and December 31, 2021, to the income tax provision reported in the financial statements.
($ in thousands)202320222021
Tax provision at statutory rate$27,711 38,896 25,266 
Increase (decrease) in income taxes resulting from:
Tax-exempt interest income(2,175)(1,976)(1,589)
Low income housing and other tax credits(630)(669)(1,229)
Bank-owned life insurance income(920)(1,511)(589)
Non-deductible interest expense241 26 14 
State income taxes, net of federal benefit2,809 3,369 2,472 
Nondeductible merger expenses489 107 242 
Change in valuation allowance(13)(20)(10)
Nondeductible compensation274 97 27 
Other, net39 (36)71 
Total$27,825 38,283 24,675 
Schedule of Deferred Tax Assets and Liabilities
The sources and tax effects of temporary differences that give rise to significant portions of the deferred tax assets, which are included in Other Assets on the consolidated balance sheets are as follows at December 31, 2023 and 2022:
($ in thousands)20232022
Deferred tax assets:  
Allowance for credit losses on loans$25,431 20,900 
Allowance for credit losses on unfunded commitments2,632 3,057 
Excess book over tax pension plan cost403 365 
Deferred compensation1,453 638 
Federal & state net operating loss and tax credit carryforwards188 197 
Accruals, book versus tax3,462 4,404 
Pension23 — 
Unrealized losses on securities available for sale92,767 102,046 
Foreclosed real estate— 
Basis differences in assets acquired in FDIC transactions46 — 
Purchase accounting adjustments4,691 2,982 
Equity compensation1,524 768 
Partnership investments773 652 
Leases178 151 
SBA servicing asset31 77 
Gross deferred tax assets133,602 136,240 
Less: Valuation allowance(17)(30)
Net deferred tax assets133,585 136,210 
Deferred tax liabilities:
Loan fees(2,952)(3,102)
Depreciable basis of fixed assets(7,070)(5,493)
Amortizable basis of intangible assets(15,523)(10,047)
Basis differences in assets acquired in FDIC transactions— (108)
Trust preferred securities(388)(416)
Pension— (12)
Gross deferred tax liabilities(25,933)(19,178)
Net deferred tax asset$107,652 117,032