Finance receivables measured at fair value (Details - Level 3 Fair value measurements) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025	Dec. 31, 2024
Finance Receivables Measured At Fair Value
Receivables, fair value disclosure	$ 3,835,789	$ 3,655,855	$ 3,449,106	$ 3,313,767
Discount rate on finance receivables	11.07%	11.07%
Cumulative net losses on finance receivables	16.21%	16.02%