RETROCESSION - Breakdown of Losses Recoverable on a Gross and Net of Collateral Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Ceded Credit Risk
Provision for credit losses	$ (865)	$ (854)
Total loss and loss adjustment expenses recoverable, net		25,687	$ 13,239
Retrocession Portfolio
Ceded Credit Risk
Total before provision	66,647	26,174
Provision for credit losses	(700)	(487)
Total loss and loss adjustment expenses recoverable, net	65,947	25,687
Net of Collateral	47,267	11,199
A- or better by A.M. Best | Retrocession Portfolio
Ceded Credit Risk
Total before provision	40,028	8,767
Net of Collateral	40,028	8,767
Not rated | Retrocession Portfolio
Ceded Credit Risk
Total before provision	26,619	17,407
Net of Collateral	$ 7,239	$ 2,432