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Loans Receivable - Credit-Rating Classification of Loans Receivable (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Jun. 30, 2022
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	$ 874,145	$ 1,734,134
Originated fiscal year before current fiscal year	1,719,449	997,932
Originated two years before current fiscal year	994,279	378,754
Originated three years before current fiscal year	362,420	396,664
Originated four years before current fiscal year	381,213	379,618
Originated more than five years before current fiscal year	1,570,254	1,455,925
Revolving Loans	99,347	93,549
Financing receivable, before allowance for credit loss, fee and loan in process	6,001,107	5,436,576
Commercial Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, before allowance for credit loss, fee and loan in process	4,233,255	3,745,866
Commercial Loan | Multi-family mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	593,864	963,263
Originated fiscal year before current fiscal year	957,401	250,385
Originated two years before current fiscal year	246,580	211,101
Originated three years before current fiscal year	202,298	273,995
Originated four years before current fiscal year	262,627	253,993
Originated more than five years before current fiscal year	588,951	456,353
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	2,851,721	2,409,090
Commercial Loan | Nonresidential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	96,016	231,777
Originated fiscal year before current fiscal year	229,684	88,029
Originated two years before current fiscal year	86,696	53,983
Originated three years before current fiscal year	53,084	61,647
Originated four years before current fiscal year	60,882	53,311
Originated more than five years before current fiscal year	484,979	525,039
Revolving Loans	6,000	6,052
Financing receivable, before allowance for credit loss, fee and loan in process	1,017,341	1,019,838
Commercial Loan | Commercial business
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	11,522	46,888
Originated fiscal year before current fiscal year	37,850	38,829
Originated two years before current fiscal year	35,488	12,536
Originated three years before current fiscal year	10,057	3,767
Originated four years before current fiscal year	2,768	8,381
Originated more than five years before current fiscal year	14,237	7,469
Revolving Loans	65,608	58,937
Financing receivable, before allowance for credit loss, fee and loan in process	177,530	176,807
Commercial Loan | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	13,628	16,407
Originated fiscal year before current fiscal year	27,363	95,526
Originated two years before current fiscal year	117,830	10,337
Originated three years before current fiscal year	11,854	3,039
Originated four years before current fiscal year	3,000	6,509
Originated more than five years before current fiscal year	7,253	2,578
Revolving Loans	5,735	5,735
Financing receivable, before allowance for credit loss, fee and loan in process	186,663	140,131
One-to Four-Family Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	151,323	472,160
Originated fiscal year before current fiscal year	464,070	524,163
Originated two years before current fiscal year	506,856	88,645
Originated three years before current fiscal year	83,231	50,604
Originated four years before current fiscal year	48,820	55,139
Originated more than five years before current fiscal year	465,214	454,731
Revolving Loans	0	374
Financing receivable, before allowance for credit loss, fee and loan in process	1,719,514	1,645,816
Consumer Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, before allowance for credit loss, fee and loan in process	48,338	44,894
Consumer Loans | Home equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	7,560	3,197
Originated fiscal year before current fiscal year	2,794	692
Originated two years before current fiscal year	658	1,681
Originated three years before current fiscal year	1,439	3,237
Originated four years before current fiscal year	2,781	2,027
Originated more than five years before current fiscal year	8,579	8,860
Revolving Loans	21,879	22,334
Financing receivable, before allowance for credit loss, fee and loan in process	45,690	42,028
Consumer Loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	232	442
Originated fiscal year before current fiscal year	287	308
Originated two years before current fiscal year	171	471
Originated three years before current fiscal year	457	375
Originated four years before current fiscal year	335	258
Originated more than five years before current fiscal year	1,041	895
Revolving Loans	125	117
Financing receivable, before allowance for credit loss, fee and loan in process	2,648	2,866
Pass | Commercial Loan | Multi-family mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	593,864	963,263
Originated fiscal year before current fiscal year	957,401	250,385
Originated two years before current fiscal year	246,580	211,101
Originated three years before current fiscal year	202,298	264,174
Originated four years before current fiscal year	246,991	248,058
Originated more than five years before current fiscal year	562,005	438,642
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	2,809,139	2,375,623
Pass | Commercial Loan | Nonresidential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	96,016	231,777
Originated fiscal year before current fiscal year	229,684	87,309
Originated two years before current fiscal year	85,982	53,983
Originated three years before current fiscal year	53,084	60,714
Originated four years before current fiscal year	59,951	49,285
Originated more than five years before current fiscal year	462,184	491,849
Revolving Loans	6,000	6,052
Financing receivable, before allowance for credit loss, fee and loan in process	992,901	980,969
Pass | Commercial Loan | Commercial business
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	11,522	46,888
Originated fiscal year before current fiscal year	37,850	38,791
Originated two years before current fiscal year	35,453	12,155
Originated three years before current fiscal year	9,529	3,581
Originated four years before current fiscal year	2,540	4,861
Originated more than five years before current fiscal year	9,968	6,455
Revolving Loans	65,504	58,662
Financing receivable, before allowance for credit loss, fee and loan in process	172,366	171,393
Pass | Commercial Loan | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	13,628	16,407
Originated fiscal year before current fiscal year	27,363	95,526
Originated two years before current fiscal year	117,830	10,337
Originated three years before current fiscal year	11,854	3,039
Originated four years before current fiscal year	3,000	6,509
Originated more than five years before current fiscal year	7,253	1,017
Revolving Loans	5,735	5,735
Financing receivable, before allowance for credit loss, fee and loan in process	186,663	138,570
Pass | One-to Four-Family Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	151,323	472,160
Originated fiscal year before current fiscal year	463,800	524,163
Originated two years before current fiscal year	506,856	88,645
Originated three years before current fiscal year	83,231	49,316
Originated four years before current fiscal year	47,554	55,139
Originated more than five years before current fiscal year	453,552	442,517
Revolving Loans	0	374
Financing receivable, before allowance for credit loss, fee and loan in process	1,706,316	1,632,314
Pass | Consumer Loans | Home equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	7,560	3,197
Originated fiscal year before current fiscal year	2,794	692
Originated two years before current fiscal year	658	1,681
Originated three years before current fiscal year	1,439	3,117
Originated four years before current fiscal year	2,665	2,027
Originated more than five years before current fiscal year	8,221	7,321
Revolving Loans	21,752	22,334
Financing receivable, before allowance for credit loss, fee and loan in process	45,089	40,369
Pass | Consumer Loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	232	442
Originated fiscal year before current fiscal year	287	308
Originated two years before current fiscal year	171	471
Originated three years before current fiscal year	457	375
Originated four years before current fiscal year	335	258
Originated more than five years before current fiscal year	1,041	895
Revolving Loans	41	34
Financing receivable, before allowance for credit loss, fee and loan in process	2,564	2,783
Special Mention | Commercial Loan | Multi-family mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	6,091	0
Originated more than five years before current fiscal year	7,445	6,814
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	13,536	6,814
Special Mention | Commercial Loan | Nonresidential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	579	591
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	579	591
Special Mention | Commercial Loan | Commercial business
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	62
Originated three years before current fiscal year	55	186
Originated four years before current fiscal year	180	2,173
Originated more than five years before current fiscal year	2,898	873
Revolving Loans	0	215
Financing receivable, before allowance for credit loss, fee and loan in process	3,133	3,509
Special Mention | Commercial Loan | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	0
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	0	0
Special Mention | One-to Four-Family Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	1,205
Originated four years before current fiscal year	1,184	0
Originated more than five years before current fiscal year	493	621
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	1,677	1,826
Special Mention | Consumer Loans | Home equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	0
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	0	0
Special Mention | Consumer Loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	0
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	0	0
Substandard | Commercial Loan | Multi-family mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	9,821
Originated four years before current fiscal year	9,545	5,935
Originated more than five years before current fiscal year	19,501	10,897
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	29,046	26,653
Substandard | Commercial Loan | Nonresidential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	720
Originated two years before current fiscal year	714	0
Originated three years before current fiscal year	0	933
Originated four years before current fiscal year	931	4,026
Originated more than five years before current fiscal year	22,216	32,599
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	23,861	38,278
Substandard | Commercial Loan | Commercial business
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	38
Originated two years before current fiscal year	35	319
Originated three years before current fiscal year	473	0
Originated four years before current fiscal year	48	1,347
Originated more than five years before current fiscal year	1,371	61
Revolving Loans	104	58
Financing receivable, before allowance for credit loss, fee and loan in process	2,031	1,823
Substandard | Commercial Loan | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	1,561
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	0	1,561
Substandard | One-to Four-Family Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	270	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	83
Originated four years before current fiscal year	82	0
Originated more than five years before current fiscal year	11,169	11,593
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	11,521	11,676
Substandard | Consumer Loans | Home equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	120
Originated four years before current fiscal year	116	0
Originated more than five years before current fiscal year	358	1,539
Revolving Loans	127	0
Financing receivable, before allowance for credit loss, fee and loan in process	601	1,659
Substandard | Consumer Loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	0
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	0	0
Doubtful | Commercial Loan | Multi-family mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	0
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	0	0
Doubtful | Commercial Loan | Nonresidential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	0
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	0	0
Doubtful | Commercial Loan | Commercial business
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	80
Revolving Loans	0	2
Financing receivable, before allowance for credit loss, fee and loan in process	0	82
Doubtful | Commercial Loan | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	0
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	0	0
Doubtful | One-to Four-Family Residential Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	0
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	0	0
Doubtful | Consumer Loans | Home equity loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	0
Revolving Loans	0	0
Financing receivable, before allowance for credit loss, fee and loan in process	0	0
Doubtful | Consumer Loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Originated current fiscal year	0	0
Originated fiscal year before current fiscal year	0	0
Originated two years before current fiscal year	0	0
Originated three years before current fiscal year	0	0
Originated four years before current fiscal year	0	0
Originated more than five years before current fiscal year	0	0
Revolving Loans	84	83
Financing receivable, before allowance for credit loss, fee and loan in process	$ 84	$ 83

X

- Definition

Amount, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

+ References

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Amount excluding accrued interest of financing receivable originated in current fiscal year.

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