FAIR VALUE OF FINANCIAL INSTRUMENTS - Additional Information (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loans receivable	$ 5,966,325		$ 5,417,845
Financing receivable, allowance for credit losses, individually evaluated for impairment	49,122	$ 48,877	47,058	$ 43,860	$ 48,216	$ 58,165
Assets, fair value	1,314,882		1,385,316
Other real estate owned	13,410		178
Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other real estate owned	13,410		178
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets, fair value	0		0
Other real estate owned	13,400		178
Significant Unobservable Inputs (Level 3) | Impaired Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Loans receivable	21,400		24,600
Financing receivable, allowance for credit losses, individually evaluated for impairment	2,500		3,600
Assets, fair value	18,900		21,000
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other real estate owned	$ 13,410		$ 178