Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480046/944-40-55-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480081/944-40-50-3

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LOSS AND LOSS ADJUSTMENT EXPENSE RESERVES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Liability for Claims and Claims Adjustment Expense
CAT event losses	$ 0	$ 7,722	$ 27,016	$ 17,722
Prior years	3,047	(689)	7,265	4,712
Operating Segments
Liability for Claims and Claims Adjustment Expense
Prior years			5,919	(109)
Operating Segments \| Open Market
Liability for Claims and Claims Adjustment Expense
CAT event losses	0	0	27,016	10,000
Prior years	(941)	60	3,955	1,533
Operating Segments \| Innovations
Liability for Claims and Claims Adjustment Expense
CAT event losses	0	0	0	0
Prior years	$ 2,531	$ (1,641)	1,964	(1,642)
Operating Segments \| Reinsurance Contract [Axis]: Adverse Reserve Development \| Open Market
Liability for Claims and Claims Adjustment Expense
Prior years			32,000	10,100
Operating Segments \| Reinsurance Contract [Axis]: Adverse Reserve Development \| Innovations
Liability for Claims and Claims Adjustment Expense
Prior years			2,300	(400)
Operating Segments \| Reinsurance Contract [Axis]: Favorable Reserve Development \| Open Market
Liability for Claims and Claims Adjustment Expense
Prior years			(28,000)	(8,500)
Operating Segments \| Reinsurance Contract [Axis]: Favorable Reserve Development \| Innovations
Liability for Claims and Claims Adjustment Expense
Prior years			$ (400)	$ 2,100