Non-controlling Interest - Net income (loss) reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Noncontrolling Interest [Line Items]
Income (loss) before provision for income taxes attributable to Holdings	$ (826)	$ (2,446)
Income (loss) before provision for income taxes attributable to NCI	(540)	(1,657)
Income (loss) before provision for income taxes	(1,366)	(4,103)
(Provision) / benefit for income taxes attributable to Holdings	(1,132)	(907)
(Provision) / benefit for income taxes attributable to NCI	(738)	(597)
(Provision) / benefit for income taxes	(1,870)	(1,504)
Net income (loss) attributable to Holdings	(1,958)	(3,353)
Net income (loss) attributable to NCI	(1,278)	(2,254)
Net income (loss)	$ (3,236)	$ (5,607)
RMCO, LLC | Weighted Average
Noncontrolling Interest [Line Items]
WAO percentage of Holdings	60.60%	59.50%
WAO percentage	100.00%	100.00%
RIHI | RMCO, LLC | Weighted Average
Noncontrolling Interest [Line Items]
WAO percentage: NCI	39.40%	40.50%