REGULATORY CAPITAL REQUIREMENTS - SCHEDULE OF CAPITAL AMOUNTS, RATIOS, AND REQUIREMENTS UNDER BASEL III (Details) $ in Thousands	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)
Regulatory Capital:
Tier 1	$ 2,554,071	$ 2,167,781
Common equity tier 1	2,554,071	2,167,781
Total capital	3,117,763	2,678,489
Assets:
Average adjusted	23,813,242	22,979,871
Total risk-weighted	$ 20,404,204	$ 18,049,571
Regulatory Capital Ratios:
Tier 1 leverage (to adjusted average assets), Ratio	0.1073	0.0943
Tier 1 leverage (to adjusted average assets), Well Capitalized Ratio	0.0500
Tier 1 leverage (to adjusted average assets), Minimum Capital Ratio	0.0400
Common equity tier 1 capital (to risk-weighted assets), Ratio	12.52%	12.01%
Common equity tier 1 capital (to risk-weighted assets), Well Capitalized Ratio	6.50%
Common equity tier 1 capital (to risk-weighted assets), Minimum Capital Ratio	4.50%
Tier 1 capital (to risk-weighted assets), Ratio	0.1252	0.1201
Tier 1 capital (to risk-weighted assets), Well Capitalized Ratio	0.0800
Tier 1 capital (to risk-weighted assets), Minimum Capital Ratio	0.0600
Total capital (to risk-weighted assets), Ratio	0.1528	0.1484
Total capital (to risk-weighted assets), Well Capitalized Ratio	0.1000
Total capital (to risk-weighted assets), Minimum Capital Ratio	0.0800
Axos Bank
Regulatory Capital:
Tier 1	$ 2,360,284	$ 2,181,426
Common equity tier 1	2,360,284	2,181,426
Total capital	2,603,589	2,365,061
Assets:
Average adjusted	23,077,089	22,391,541
Total risk-weighted	$ 19,003,094	$ 17,128,880
Regulatory Capital Ratios:
Tier 1 leverage (to adjusted average assets), Ratio	0.1023	0.0974
Common equity tier 1 capital (to risk-weighted assets), Ratio	12.42%	12.74%
Tier 1 capital (to risk-weighted assets), Ratio	0.1242	0.1274
Total capital (to risk-weighted assets), Ratio	0.1370	0.1381

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Tier One Common Equity

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Ratio of minimum total risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B

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