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Name:	us-gaap_Assets
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Period Type:	instant

Note 10 - Commitments and Contingencies (Details Textual) $ in Thousands	6 Months Ended
	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)	Jun. 30, 2025 USD ($)
Assets	$ 7,491,770	$ 7,623,088	$ 3,643,175
Customer Concentration Risk [Member] \| Private Label Credit Receivable [Member]
Number of Major Customers	5
Customer Concentration Risk [Member] \| Private Label Credit Receivable [Member] \| Five Largest Retail Partners [Member]
Concentration Risk, Percentage	85.00%
Asset Pledged as Collateral [Member] \| Contractual Obligations [Member]
Assets	$ 41,800
Unfunded Individual Credit Commitment [Member]
Other Commitment	7,700
Unfunded Outstanding Floor-Plan Financing Commitment [Member]
Other Commitment	8,300
Credit Protection Program [Member]
Loss Contingency, Estimate of Possible Loss	$ 241,100