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LOANS AND LEASES - Schedule of Loan Modifications, Aging Analysis (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Jun. 30, 2024
--- | --- | ---
Current |  |
Financing Receivable, Modified [Line Items] |  |
Total | $ 36.5 | $ 39.5
30-89 Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 1.2 | 4.1
90+ Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.3 | 1.2
Total commercial loans and leases | Current |  |
Financing Receivable, Modified [Line Items] |  |
Total | 27.8 | 33.3
Total commercial loans and leases | 30-89 Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.0 | 0.0
Total commercial loans and leases | 90+ Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.0 | 0.0
Total commercial loans and leases | Commercial real estate | Current |  |
Financing Receivable, Modified [Line Items] |  |
Total | 20.6 | 14.8
Total commercial loans and leases | Commercial real estate | 30-89 Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.0 | 0.0
Total commercial loans and leases | Commercial real estate | 90+ Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.0 | 0.0
Total commercial loans and leases | Commercial and industrial | Current |  |
Financing Receivable, Modified [Line Items] |  |
Total | 7.2 | 18.5
Total commercial loans and leases | Commercial and industrial | 30-89 Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.0 | 0.0
Total commercial loans and leases | Commercial and industrial | 90+ Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.0 | 0.0
Total consumer loans | Current |  |
Financing Receivable, Modified [Line Items] |  |
Total | 8.7 | 6.2
Total consumer loans | 30-89 Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 1.2 | 4.1
Total consumer loans | 90+ Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.3 | 1.2
Total consumer loans | Direct installment | Current |  |
Financing Receivable, Modified [Line Items] |  |
Total | 1.7 | 1.3
Total consumer loans | Direct installment | 30-89 Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.4 | 0.8
Total consumer loans | Direct installment | 90+ Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.0 | 0.0
Total consumer loans | Residential mortgages | Current |  |
Financing Receivable, Modified [Line Items] |  |
Total | 6.1 | 3.3
Total consumer loans | Residential mortgages | 30-89 Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.7 | 2.9
Total consumer loans | Residential mortgages | 90+ Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.2 | 1.2
Total consumer loans | Consumer lines of credit | Current |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.9 | 1.6
Total consumer loans | Consumer lines of credit | 30-89 Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | 0.1 | 0.4
Total consumer loans | Consumer lines of credit | 90+ Days Past Due |  |
Financing Receivable, Modified [Line Items] |  |
Total | $ 0.1 | $ 0.0

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