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