The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

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The charge against earnings in the period for the uninsured portion of a loss from a fire, explosion, or natural disaster (hurricane, earthquake).

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Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs.

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LOSS AND LOSS ADJUSTMENT EXPENSE RESERVES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Liability for Claims and Claims Adjustment Expense
Loss from catastrophes		$ 0	$ 29,000	$ 27,016
Prior years	$ 2,490	817	717	8,082
Insurance Recoveries			3,800
Operating Segments
Liability for Claims and Claims Adjustment Expense
Prior years			(2,131)	6,126
Operating Segments \| Open Market
Liability for Claims and Claims Adjustment Expense
Loss from catastrophes		0	29,000	27,016
Prior years	(725)	855	(6,417)	4,810
Operating Segments \| Innovations
Liability for Claims and Claims Adjustment Expense
Loss from catastrophes		0	0	0
Prior years	$ 2,130	$ (648)	4,286	1,316
Operating Segments \| Reinsurance Contract [Axis]: Adverse Reserve Development \| Open Market
Liability for Claims and Claims Adjustment Expense
Prior years			6,600	46,400
Operating Segments \| Reinsurance Contract [Axis]: Adverse Reserve Development \| Innovations
Liability for Claims and Claims Adjustment Expense
Prior years			5,800	2,600
Operating Segments \| Reinsurance Contract [Axis]: Favorable Reserve Development \| Open Market
Liability for Claims and Claims Adjustment Expense
Prior years			(13,000)	(41,600)
Operating Segments \| Reinsurance Contract [Axis]: Favorable Reserve Development \| Innovations
Liability for Claims and Claims Adjustment Expense
Prior years			$ (1,600)	$ (1,300)