Non-controlling Interest - Net income (loss) reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Noncontrolling Interest [Line Items]
Income (loss) before provision for income taxes attributable to Holdings	$ 3,216	$ (14,149)	$ 11,090
Income (loss) before provision for income taxes attributable to NCI	2,984	(27,390)	7,038
Income (loss) before provision for income taxes	6,200	(41,539)	18,128
(Provision) / benefit for income taxes attributable to Holdings	3,907	(54,873)	(4,980)
(Provision) / benefit for income taxes attributable to NCI	(2,030)	(2,074)	(2,391)
(Provision) / benefit for income taxes	1,877	(56,947)	(7,371)
Net income (loss) attributable to Holdings	7,123	(69,022)	6,110
Net income (loss) attributable to NCI	954	(29,464)	4,647
Net income (loss)	$ 8,077	$ (98,486)	$ 10,757
RMCO, LLC
Noncontrolling Interest [Line Items]
WAO percentage	100.00%	100.00%
RMCO, LLC | Weighted Average
Noncontrolling Interest [Line Items]
WAO percentage of Holdings	59.90%	59.10%	59.80%
Total (as a percentage)	100.00%	100.00%	100.00%
RIHI | RMCO, LLC | Weighted Average
Noncontrolling Interest [Line Items]
WAO percentage: NCI	40.10%	40.90%	40.20%