Segment Information - Reconciliation between Reportable Segment Adjusted Net (Loss) Income to Consolidated Loss from continuing Operations (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
Jan. 14, 2025	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Adjusted EBITDA by Segment
Total	$ (6,063)	$ 3,837	$ (5,210)	$ (11,269)	$ (5,205)
Stock compensation expense	(134)	(1,162)	(1,149)	(2,305)	(1,446)
Severance expense	(4)	(182)	(7)	(182)	(28)
Impairment charges	0			0	(4,156)
Corporate (loss) income from continuing operations before reorganization items and provision for income taxes	256	(2,629)	(2,566)	(5,997)	(5,224)
Reorganization items	51,036			0	0
Preferred stock dividends attributable to noncontrolling interests of subsidiary		691		1,262
Net income (loss) from continuing operations	45,090	555	(8,932)	(18,491)	(15,382)
UACC \| Operating Segments
Adjusted EBITDA by Segment
Total	(5,910)	3,993	(5,334)	(10,983)	(6,168)
Impairment charges					(3,479)
Preferred stock dividends attributable to noncontrolling interests of subsidiary		691		1,262
CarStory \| Operating Segments
Adjusted EBITDA by Segment
Total	$ (153)	$ (156)	$ 124	$ (286)	963
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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