LOANS & ALLOWANCE FOR CREDIT LOSSES - SCHEDULE OF LOANS BY AMORTIZED COST BASIS BY YEAR OF ORIGINATION AND CREDIT QUALITY INDICATOR (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Mar. 31, 2025	Jun. 30, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	$ 3,493,807	$ 3,568,319
2024 - 2023	2,733,979	3,368,194
2023 - 2022	2,459,126	4,352,535
2022 - 2021	3,257,435	1,433,787
2021 - 2020	1,150,619	904,402
Prior	2,155,031	1,732,247
Revolving Loans	5,479,259	4,443,327
Total	20,729,256	19,802,811
Year-to-date gross charge-offs
Gross charge-offs 2025 - 2024	18	202
Gross charge-offs 2024 - 2023	403	3,471
Gross charge-offs 2023 - 2022	2,702	5,212
Gross charge-offs 2022 - 2021	2,663	1,556
Gross charge-offs 2021 - 2020	1,744	943
Prior	11,737	525
Revolving Loans	2,000	0
Total	$ 21,267	$ 11,909
As a % of total gross loans
2025 - 2024	16.90%	18.00%
2024 - 2023	13.20%	17.00%
2023 - 2022	11.90%	22.00%
2022 - 2021	15.70%	7.20%
2021 - 2020	5.60%	4.60%
Prior	10.40%	8.80%
Revolving Loans	26.30%	22.40%
Total	100.00%	100.00%
Single Family - Mortgage & Warehouse
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	$ 487,621	$ 522,822
2024 - 2023	319,582	590,343
2023 - 2022	473,700	1,231,447
2022 - 2021	1,103,383	487,797
2021 - 2020	463,809	312,358
Prior	848,695	777,287
Revolving Loans	498,031	256,778
Total	4,194,821	4,178,832
Year-to-date gross charge-offs
Gross charge-offs 2025 - 2024	0	0
Gross charge-offs 2024 - 2023	0	0
Gross charge-offs 2023 - 2022	0	0
Gross charge-offs 2022 - 2021	0	0
Gross charge-offs 2021 - 2020	0	0
Prior	2,297	172
Revolving Loans	0	0
Total	2,297	172
Multifamily and Commercial Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	43,011	36,058
2024 - 2023	26,655	742,977
2023 - 2022	666,088	1,052,707
2022 - 2021	1,006,941	628,284
2021 - 2020	467,288	560,365
Prior	1,130,635	841,540
Revolving Loans	0	0
Total	3,340,618	3,861,931
Year-to-date gross charge-offs
Gross charge-offs 2025 - 2024	0	0
Gross charge-offs 2024 - 2023	0	0
Gross charge-offs 2023 - 2022	0	0
Gross charge-offs 2022 - 2021	0	0
Gross charge-offs 2021 - 2020	0	640
Prior	7,685	0
Revolving Loans	0	0
Total	7,685	640
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	2,154,798	1,952,001
2024 - 2023	1,486,552	1,424,999
2023 - 2022	816,851	1,527,795
2022 - 2021	747,104	226,061
2021 - 2020	151,817	7,741
Prior	59,622	83,339
Revolving Loans	939,815	866,686
Total	6,356,559	6,088,622
Year-to-date gross charge-offs
Gross charge-offs 2025 - 2024	0	0
Gross charge-offs 2024 - 2023	0	0
Gross charge-offs 2023 - 2022	0	0
Gross charge-offs 2022 - 2021	0	0
Gross charge-offs 2021 - 2020	0	0
Prior		0
Prior, Recovery	0
Revolving Loans	0	0
Total		0
Total, Recovery	0
Commercial & Industrial - Non-RE
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	667,082	991,497
2024 - 2023	848,698	494,500
2023 - 2022	417,539	361,857
2022 - 2021	274,407	47,772
2021 - 2020	39,726	10,422
Prior	101,099	15,855
Revolving Loans	4,041,413	3,319,863
Total	6,389,964	5,241,766
Year-to-date gross charge-offs
Gross charge-offs 2025 - 2024	0	0
Gross charge-offs 2024 - 2023	0	0
Gross charge-offs 2023 - 2022	884	0
Gross charge-offs 2022 - 2021	0	0
Gross charge-offs 2021 - 2020	1,031	0
Prior	0	84
Revolving Loans	2,000	0
Total	3,915	84
Auto & Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	141,295	65,941
2024 - 2023	52,492	115,375
2023 - 2022	84,948	178,729
2022 - 2021	125,600	43,873
2021 - 2020	27,979	13,516
Prior	14,980	14,226
Revolving Loans	0	0
Total	447,294	431,660
Year-to-date gross charge-offs
Gross charge-offs 2025 - 2024	18	202
Gross charge-offs 2024 - 2023	403	3,471
Gross charge-offs 2023 - 2022	1,818	5,212
Gross charge-offs 2022 - 2021	2,663	1,556
Gross charge-offs 2021 - 2020	713	303
Prior	1,755	269
Revolving Loans	0	0
Total	7,370	11,013
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	3,493,384	3,537,144
2024 - 2023	2,705,250	3,282,691
2023 - 2022	2,401,960	4,066,317
2022 - 2021	2,983,510	1,391,702
2021 - 2020	1,129,291	832,953
Prior	2,013,987	1,611,156
Revolving Loans	5,327,223	4,418,889
Total	20,054,605	19,140,852
Pass \| Single Family - Mortgage & Warehouse
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	487,621	491,822
2024 - 2023	319,582	590,060
2023 - 2022	473,700	1,200,230
2022 - 2021	1,086,704	487,132
2021 - 2020	453,658	291,047
Prior	785,879	720,049
Revolving Loans	490,429	256,778
Total	4,097,573	4,037,118
Pass \| Multifamily and Commercial Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	43,011	36,058
2024 - 2023	26,655	700,163
2023 - 2022	642,262	994,004
2022 - 2021	952,205	595,299
2021 - 2020	464,138	510,341
Prior	1,070,737	811,184
Revolving Loans	0	0
Total	3,199,008	3,647,049
Pass \| Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	2,154,798	1,952,001
2024 - 2023	1,486,552	1,419,399
2023 - 2022	816,851	1,456,643
2022 - 2021	732,780	221,061
2021 - 2020	146,817	7,741
Prior	44,812	53,000
Revolving Loans	925,206	866,686
Total	6,307,816	5,976,531
Pass \| Commercial & Industrial - Non-RE
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	667,082	991,497
2024 - 2023	820,277	458,454
2023 - 2022	384,897	238,397
2022 - 2021	87,383	44,923
2021 - 2020	36,981	10,422
Prior	98,110	12,867
Revolving Loans	3,911,588	3,295,425
Total	6,006,318	5,051,985
Pass \| Auto & Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	140,872	65,766
2024 - 2023	52,184	114,615
2023 - 2022	84,250	177,043
2022 - 2021	124,438	43,287
2021 - 2020	27,697	13,402
Prior	14,449	14,056
Revolving Loans	0	0
Total	443,890	428,169
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	48	31,033
2024 - 2023	16,239	31,151
2023 - 2022	5,546	99,288
2022 - 2021	91,677	20,137
2021 - 2020	12,358	15,602
Prior	43,014	37,211
Revolving Loans	28,433	5,349
Total	197,315	239,771
Special Mention \| Single Family - Mortgage & Warehouse
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	31,000
2024 - 2023	0	0
2023 - 2022	0	24,489
2022 - 2021	4,100	665
2021 - 2020	9,051	6,591
Prior	24,670	26,873
Revolving Loans	7,602	0
Total	45,423	89,618
Special Mention \| Multifamily and Commercial Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	29,325
2023 - 2022	5,296	46,194
2022 - 2021	41,474	17,478
2021 - 2020	3,150	9,011
Prior	18,293	10,277
Revolving Loans	0	0
Total	68,213	112,285
Special Mention \| Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	0
2023 - 2022	0	27,452
2022 - 2021	0	0
2021 - 2020	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	27,452
Special Mention \| Commercial & Industrial - Non-RE
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	16,188	1,613
2023 - 2022	0	731
2022 - 2021	45,774	1,818
2021 - 2020	0	0
Prior	0	0
Revolving Loans	20,831	5,349
Total	82,793	9,511
Special Mention \| Auto & Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	48	33
2024 - 2023	51	213
2023 - 2022	250	422
2022 - 2021	329	176
2021 - 2020	157	0
Prior	51	61
Revolving Loans	0	0
Total	886	905
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	375	142
2024 - 2023	12,490	54,352
2023 - 2022	51,620	186,930
2022 - 2021	172,248	21,948
2021 - 2020	8,970	55,847
Prior	98,030	83,880
Revolving Loans	118,693	19,089
Total	462,426	422,188
Substandard \| Single Family - Mortgage & Warehouse
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	283
2023 - 2022	0	6,728
2022 - 2021	12,579	0
2021 - 2020	1,100	14,720
Prior	38,146	30,365
Revolving Loans	0	0
Total	51,825	52,096
Substandard \| Multifamily and Commercial Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	13,489
2023 - 2022	18,530	12,509
2022 - 2021	13,262	15,507
2021 - 2020	0	41,013
Prior	41,605	20,079
Revolving Loans	0	0
Total	73,397	102,597
Substandard \| Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	5,600
2023 - 2022	0	43,700
2022 - 2021	14,324	5,000
2021 - 2020	5,000	0
Prior	14,810	30,339
Revolving Loans	14,609	0
Total	48,743	84,639
Substandard \| Commercial & Industrial - Non-RE
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	12,233	34,433
2023 - 2022	32,642	122,729
2022 - 2021	131,250	1,031
2021 - 2020	2,745	0
Prior	2,989	2,988
Revolving Loans	104,084	19,089
Total	285,943	180,270
Substandard \| Auto & Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	375	142
2024 - 2023	257	547
2023 - 2022	448	1,264
2022 - 2021	833	410
2021 - 2020	125	114
Prior	480	109
Revolving Loans	0	0
Total	2,518	2,586
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	0
2023 - 2022	0	0
2022 - 2021	10,000	0
2021 - 2020	0	0
Prior	0	0
Revolving Loans	4,910	0
Total	14,910	0
Doubtful \| Single Family - Mortgage & Warehouse
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	0
2023 - 2022	0	0
2022 - 2021	0	0
2021 - 2020	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Doubtful \| Multifamily and Commercial Mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	0
2023 - 2022	0	0
2022 - 2021	0	0
2021 - 2020	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Doubtful \| Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	0
2023 - 2022	0	0
2022 - 2021	0	0
2021 - 2020	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Doubtful \| Commercial & Industrial - Non-RE
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	0
2023 - 2022	0	0
2022 - 2021	10,000	0
2021 - 2020	0	0
Prior	0	0
Revolving Loans	4,910	0
Total	14,910	0
Doubtful \| Auto & Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2025 - 2024	0	0
2024 - 2023	0	0
2023 - 2022	0	0
2022 - 2021	0	0
2021 - 2020	0	0
Prior	0	0
Revolving Loans	0	0
Total	$ 0	$ 0

Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Recovery

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Financing Receivable, Ratio Of Grade Class To Gross Loans

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Financing Receivable, Ratio Of Grade Class To Gross Loans

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Financing Receivable, Ratio Of Grade Class To Gross Loans, Originated, More Than Five Years Before Current Fiscal Year

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Financing Receivable, Ratio Of Grade Class To Gross Loans, Year Five, Originated, Four Years Before Current Fiscal Year

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No definition available.

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Financing Receivable, Ratio Of Grade Class To Gross Loans, Year Four, Originated, Three Years Before Current Fiscal Year

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Financing Receivable, Ratio Of Grade Class To Gross Loans, Year One, Originated, Current Fiscal Year

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- Definition

Financing Receivable, Ratio Of Grade Class To Gross Loans, Year Three, Originated, Two Years Before Current Fiscal Year

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No definition available.

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Financing Receivable, Ratio Of Grade Class To Gross Loans, Year Two, Originated, Fiscal Year Before Current Fiscal Year

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- Definition

Amortized cost, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 5
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
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-Name Accounting Standards Codification
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-Paragraph 1
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-Publisher FASB
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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
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-Section 50
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- Definition

Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
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Amount, excluding accrued interest, of writeoff of financing receivable originated more than five years before current fiscal year. Excludes net investment in lease.

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- Definition

Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn.

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Amount, excluding accrued interest, of writeoff of financing receivable that can be withdrawn, repaid, and redrawn.

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Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease.

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Amount, excluding accrued interest, of writeoff of financing receivable originated four years before current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease.

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Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease.

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