Segment Information - Reconciliation between Reportable Segment Adjusted Net (Loss) Income to Consolidated Loss from continuing Operations (Details) - USD ($) $ in Thousands		3 Months Ended
Jan. 14, 2025	Mar. 31, 2026	Mar. 31, 2025
Adjusted EBITDA by Segment
Total	$ (6,063)	$ (15,106)	$ 5
Stock compensation expense	(134)	(1,142)	(297)
Severance expense	(4)		(21)
Impairment charges	0	0	(4,156)
Corporate income (loss) from continuing operations before reorganization items and provision for income taxes	256	(3,369)	(2,658)
Reorganization items	51,036	0	0
Preferred stock dividends attributable to noncontrolling interests of subsidiary		571
Net (loss) income from continuing operations	45,090	(19,046)	(6,450)
UACC \| Operating Segments
Adjusted EBITDA by Segment
Total	(5,910)	(14,976)	(834)
Impairment charges			(3,479)
Preferred stock dividends attributable to noncontrolling interests of subsidiary		571
CarStory \| Operating Segments
Adjusted EBITDA by Segment
Total	$ (153)	$ (130)	839
UACC and Car Story
Adjusted EBITDA by Segment
Impairment charges			$ 3,479

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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