FAIR VALUE - SCHEDULE OF LEVEL 3 ASSETS MEASURED ON RECURRING BASIS (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance	$ 42,787	$ 139,852
Included in earnings—Mortgage banking and servicing rights income		$ (2,706)
Included in earnings—Mortgage banking income [Extensible Enumeration]		Mortgage banking and servicing rights income
Included in other comprehensive income	$ (232)	$ 905
Included in other comprehensive income [Extensible Enumeration]	Other comprehensive income (loss)	Other comprehensive income (loss)
Purchases, retentions, issues, sales and settlements:
Purchases/Retentions/Sales	$ 39,103	$ 1,000
Issuances	1,353
Settlements	(11,064)	(96,264)
Closing balance	70,736	42,787
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	(1,211)	(2,706)
Income Statement Location [Axis]: ax:FeesAndCommissionsMortgageBankingAndServicingIncomeExpense
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	$ (3,056)
Included in earnings—Mortgage banking income [Extensible Enumeration]	Mortgage banking and servicing rights income
Income Statement Location [Axis]: us-gaap:OtherGeneralAndAdministrativeExpense
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	$ 1,845
Included in earnings—Mortgage banking income [Extensible Enumeration]	Mortgage banking and servicing rights income
Non-agency
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance	$ 15,569	110,928
Included in earnings—Mortgage banking and servicing rights income		0
Included in other comprehensive income	(232)	905
Purchases, retentions, issues, sales and settlements:
Purchases/Retentions/Sales	0	0
Settlements	(11,064)	(96,264)
Closing balance	4,273	15,569
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	0	0
Non-agency \| Income Statement Location [Axis]: ax:FeesAndCommissionsMortgageBankingAndServicingIncomeExpense
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	0
Non-agency \| Income Statement Location [Axis]: us-gaap:OtherGeneralAndAdministrativeExpense
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	0
Servicing rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance	27,218	28,924
Included in earnings—Mortgage banking and servicing rights income		(2,706)
Included in other comprehensive income	0	0
Purchases, retentions, issues, sales and settlements:
Purchases/Retentions/Sales	1,491	1,000
Settlements	0	0
Closing balance	25,653	27,218
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	(3,056)	(2,706)
Servicing rights \| Income Statement Location [Axis]: ax:FeesAndCommissionsMortgageBankingAndServicingIncomeExpense
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	(3,056)
Servicing rights \| Income Statement Location [Axis]: us-gaap:OtherGeneralAndAdministrativeExpense
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	0
Other assets—Loans held for investment at fair value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance	0
Included in other comprehensive income	0
Purchases, retentions, issues, sales and settlements:
Purchases/Retentions/Sales	6,802
Issuances	1,353
Settlements	0
Closing balance	10,000	0
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	1,845
Other assets—Loans held for investment at fair value \| Income Statement Location [Axis]: ax:FeesAndCommissionsMortgageBankingAndServicingIncomeExpense
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	0
Other assets—Loans held for investment at fair value \| Income Statement Location [Axis]: us-gaap:FloorBrokerageExchangeAndClearanceFees
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	1,845
Other assets—Loans held for investment at fair value \| Income Statement Location [Axis]: us-gaap:OtherGeneralAndAdministrativeExpense
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	1,845
Accounts payable and other liabilities— Contingent Consideration
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance	0
Included in other comprehensive income	0
Purchases, retentions, issues, sales and settlements:
Purchases/Retentions/Sales	30,810
Settlements	0
Closing balance	30,810	0
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	0
Accounts payable and other liabilities— Contingent Consideration \| Income Statement Location [Axis]: ax:FeesAndCommissionsMortgageBankingAndServicingIncomeExpense
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	0
Accounts payable and other liabilities— Contingent Consideration \| Income Statement Location [Axis]: us-gaap:OtherGeneralAndAdministrativeExpense
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Included in earnings—Mortgage banking and servicing rights income	0
Level 3
Purchases, retentions, issues, sales and settlements:
Principal payments and loans that were paid down or paid off	1,400	1,400
Market-driven increase (decrease) in interest rates	$ (1,700)	$ 1,300

Increase (Decrease) in Mortgage Servicing Rights, Market Risk of Interest Rates

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Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of issuances of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of increase (decrease) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Indicates line item in statement of income or comprehensive income that includes gain (loss) from asset measured at fair value using unobservable input (level 3).

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Cash payments for and related to principal collection on loans related to operating activities.

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