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Income Taxes (Details 2) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Reasons for the difference between income tax expense and statutory federal income tax |  |  |
Statutory federal income tax | $ 32,526,000 | $ 22,332,000 | $ 25,232,000
Tax-exempt interest income | (373,000) | (439,000) | (552,000)
State taxes, net of federal income tax benefit | 4,563,000 | 3,424,000 | 4,064,000
Other | (388,000) | (437,000) | (605,000)
Total provision | $ 36,328,000 | $ 24,880,000 | $ 28,139,000
Reasons for the difference between income tax expense rate and statutory federal income tax rate |  |  |
Statutory federal income tax (as a percent) | 21.00% | 21.00% | 21.00%
Tax-exempt interest income (as a percent) | (0.20%) | (0.40%) | (0.50%)
State taxes, net of federal income tax benefit (as a percent) | 2.90% | 3.20% | 3.40%
Other (as a percent) | (0.20%) | (0.40%) | (0.50%)
Total income tax expense (benefit) (as a percent) | 23.50% | 23.40% | 23.40%
Deferred tax assets: |  |  |
Reserve for loan and lease losses | $ 32,431,000 | $ 35,696,000 |
Deferred Tax Assets, Tax Credit Carryforwards, Other | 0 | 8,606,000 |
Operating lease liability | 5,145,000 | 5,704,000 |
Accruals for employee benefits | 3,837,000 | 2,963,000 |
Capitalized loan costs | 15,000 | 893,000 |
Net unrealized losses on securities available-for-sale | 3,128,000 | 0 |
Other | 1,015,000 | 851,000 |
Total deferred tax assets | 45,571,000 | 54,713,000 |
Deferred tax liabilities: |  |  |
Differing depreciable bases in premises and leased equipment | 10,796,000 | 13,118,000 |
Right of use assets - leases | 5,315,000 | 5,737,000 |
Differing bases in assets related to acquisitions | 4,219,000 | 4,160,000 |
Tax advantaged partnerships | 9,502,000 | 3,770,000 |
Net unrealized gains on securities available-for-sale | 0 | 5,827,000 |
Other | 713,000 | 634,000 |
Total deferred tax liabilities | 30,545,000 | 33,246,000 |
Deferred Tax Assets, Net, Total | 15,026,000 | 21,467,000 |
Valuation allowance for deferred tax assets | 0 | 0 |
Investment securities available-for-sale |  |  |
Reasons for the difference between income tax expense and statutory federal income tax |  |  |
Total provision | $ (164,000) | $ 67,000 | $ 0

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