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Income Taxes - Additional Information (Detail) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2018 | Dec. 31, 2019
Income Tax Disclosure [Line Items] |  |  |  |  |
Federal statutory tax rate | 21.00% | 21.00% | 21.00% |  |
Provision for income taxes | $ 44,288,000 | $ 59,589,000 | $ 23,035,000 |  |
Valuation allowance of deferred tax assets | 0 |  |  |  |
Qualifying and non-qualifying tax bad debt reserves | 45,900,000 | 45,900,000 |  |  |
Provision for income taxes | 0 |  |  |  |
Related amount of unrecognized deferred tax liability | 10,500,000 | 10,800,000 |  |  |
Federal and state income taxes applicable to securities transactions | (400,000) | 200,000 | 1,000,000.0 |  |
Unrecognized tax benefits and interest | 158,000 | $ 226,000 | 324,000 |  | $ 434,000
Unrecognized tax benefits that would affect the effective tax rate | 200,000 |  |  |  |
YCB and OLBK [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Federal deferred tax assets net operating loss carryforwards | $ 22,400,000 |  |  |  |
YCB and OLBK [Member] | Maryland [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Net operating loss carryforwards expiration date | 2029 |  |  |  |
State and local deferred tax assets net operating loss carryforwards | $ 4,600,000 |  |  |  |
YCB and OLBK [Member] | Kentucky |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Net operating loss carryforwards expiration date | 2028 |  |  |  |
State and local deferred tax assets net operating loss carryforwards | $ 23,100,000 |  |  |  |
Earliest Tax Year [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Earliest year for tax examination | 2019 |  |  |  |
Earliest Tax Year [Member] | YCB and OLBK [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Net operating loss carryforwards expiration date | 2034 |  |  |  |
Latest Tax Year [Member] | YCB and OLBK [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Net operating loss carryforwards expiration date | 2037 |  |  |  |
CARES Act [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Federal statutory tax rate |  |  |  | 21.00% |
Provision for income taxes |  |  | $ (200,000) |  |
Maximum [Member] | CARES Act [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Net operating loss period | 5 years |  |  |  |

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