Premises and Equipment - Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 101,541	$ 100,222
Less accumulated depreciation and amortization	48,260	43,884
Total premises and equipment	53,281	56,338
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	12,192	12,192
Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	48,156	47,535
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	11,336	12,075
Furnishings and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	29,431	28,349
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 426	$ 71