v3.26.1
Segment Information - Summary of Information about our Segments and a Reconciliation to Net Income (Loss) (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Income Statement [Abstract]            
Fleet revenue $ 10,443   $ 13,228   $ 19,172 $ 13,228
Interest income 3,983   3,028   7,577 6,314
Other revenue 2,255   1,501   4,054 2,804
Total revenue 16,681   17,757   30,803 22,346
Cost of fleet revenue, net (exclusive of depreciation) 8,892   3,470   16,523 4,785
Depreciation of rental vehicles 2,222   743   3,741 1,282
Service fee expense 1,435   1,125   2,636 2,250
Management fee expense - related party 2,216   1,683   4,442 1,683
Depreciation of property and equipment 45   28   111 28
General and administrative 2,888   3,147   5,715 3,264
Professional fees 3,282   4,005   5,412 6,388
Total operating expenses 20,980   14,201   38,580 19,680
Other income (expense), net (1,049)   (1,610)   (1,974) (4,406)
Income tax (expense) benefit 559   (49,283)   3,482 (49,283)
Net loss (4,789) $ (1,480) (47,337) $ (3,686) (6,269) (51,023)
Total Reportable Segment [Member]            
Income Statement [Abstract]            
Fleet revenue 10,443   13,228   19,172 13,228
Interest income 3,983   2,982   7,519 6,076
Other revenue 2,255   1,501   4,054 2,804
Total revenue 16,681   17,711   30,745 22,108
Cost of fleet revenue, net (exclusive of depreciation) 8,892   3,470   16,523 4,785
Depreciation of rental vehicles 2,222   743   3,741 1,282
Service fee expense 1,435   1,125   2,636 2,250
Depreciation of property and equipment 45   28   111 28
General and administrative 1,882   467   3,409 467
Professional fees 1,476   657   2,261 1,502
Total operating expenses 15,952   6,490   28,681 10,314
Other income (expense), net (525)   (1,651)   (626) (4,447)
Income tax (expense) benefit (160)   (52,178)   (508) (52,178)
Net loss 44   (42,608)   930 (44,831)
All Other [Member]            
Income Statement [Abstract]            
Interest income     46   58 238
Total revenue     46   58 238
Management fee expense - related party 2,216   1,683   4,442 1,683
General and administrative 1,006   2,680   2,306 2,797
Professional fees 1,806   3,348   3,151 4,886
Total operating expenses 5,028   7,711   9,899 9,366
Other income (expense), net (524)   41   (1,348) 41
Income tax (expense) benefit 719   2,895   3,990 2,895
Net loss (4,833)   (4,729)   (7,199) (6,192)
Operating Segments [Member]            
Income Statement [Abstract]            
Fleet revenue 10,443   13,228   19,172 13,228
Interest income 3,983   3,028   7,577 6,314
Other revenue 2,255   1,501   4,054 2,804
Total revenue 16,681   17,757   30,803 22,346
Cost of fleet revenue, net (exclusive of depreciation) 8,892   3,470   16,523 4,785
Depreciation of rental vehicles 2,222   743   3,741 1,282
Service fee expense 1,435   1,125   2,636 2,250
Management fee expense - related party 2,216   1,683   4,442 1,683
Depreciation of property and equipment 45   28   111 28
General and administrative 2,888   3,147   5,715 3,264
Professional fees 3,282   4,005   5,412 6,388
Total operating expenses 20,980   14,201   38,580 19,680
Other income (expense), net (1,049)   (1,610)   (1,974) (4,406)
Income tax (expense) benefit 559   (49,283)   3,482 (49,283)
Net loss (4,789)   (47,337)   (6,269) (51,023)
Operating Segments [Member] | Specialty Finance [Member]            
Income Statement [Abstract]            
Interest income 3,983   2,982   7,519 6,076
Other revenue 2,162   1,370   3,857 2,673
Total revenue 6,145   4,352   11,376 8,749
Service fee expense 1,435   1,125   2,636 2,250
Professional fees 1,024   370   1,641 464
Total operating expenses 2,459   1,495   4,277 2,714
Other income (expense), net (547)   (1,871)   (921) (4,667)
Income tax (expense) benefit (357)   (32,832)   (2,187) (32,832)
Net loss 2,782   (31,846)   3,991 (31,464)
Operating Segments [Member] | Fleet Operations [Member]            
Income Statement [Abstract]            
Fleet revenue 10,443   13,228   19,172 13,228
Other revenue 93   131   197 131
Total revenue 10,536   13,359   19,369 13,359
Cost of fleet revenue, net (exclusive of depreciation) 8,892   3,470   16,523 4,785
Depreciation of rental vehicles 2,222   743   3,741 1,282
Depreciation of property and equipment 45   28   111 28
General and administrative 1,882   467   3,409 467
Professional fees 452   287   620 1,038
Total operating expenses 13,493   4,995   24,404 7,600
Other income (expense), net 22   220   295 220
Income tax (expense) benefit 197   (19,346)   1,679 (19,346)
Net loss $ (2,738)   $ (10,762)   $ (3,061) $ (13,367)