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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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LOANS AND LEASES, NET - Summary of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025	Sep. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	$ 4,868,322		$ 4,665,006
Net deferred loan origination costs (fees)	(1,157)		(98)
Total gross loans and leases	4,867,165		4,664,908
Allowance for credit losses	(98,279)		(53,319)
Total loans and leases, net	4,768,886		4,611,589
National Lending \| Term lending
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	2,501,855		2,302,540
Allowance for credit losses	(33,744)	$ (28,771)	(28,345)	$ (26,219)	$ (29,925)	$ (30,394)
National Lending \| Asset-based lending
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	660,220		593,265
Allowance for credit losses	(11,969)	(9,694)	(7,650)	(2,030)	(1,762)	(1,356)
National Lending \| Factoring
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	213,269		217,501
Allowance for credit losses	(4,974)	(3,784)	(4,319)	(4,934)	(5,765)	(5,757)
National Lending \| Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	126,902		149,236
Allowance for credit losses	(838)	(1,037)	(1,040)	(1,243)	(881)	(1,189)
National Lending \| SBA/USDA
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	536,637		511,488
Allowance for credit losses	(4,235)	(4,709)	(4,807)	(4,021)	(3,807)	(3,273)
National Lending \| Other commercial finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	73,694		149,939
Allowance for credit losses	(36)	(102)	(90)	(384)	(421)	(607)
National Lending \| Commercial finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	4,112,577		3,923,969
Allowance for credit losses	(55,796)	(48,097)	(46,251)	(38,831)	(42,561)	(42,576)
National Lending \| Consumer finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	90,912		93,319
Allowance for credit losses	(6,589)	(9,040)	(6,422)	(29,635)	(30,361)	(28,669)
National Lending \| Tax services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	60,191		2,532
Allowance for credit losses	(35,289)	(1,061)	0	(33,781)	(790)	(2)
National Lending \| Warehouse finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases	604,642		645,186
Allowance for credit losses	$ (605)	$ (642)	$ (646)	$ (643)	$ (625)	$ (518)