Business Combinations - Schedule of Assets acquired and liabilities assumed assets acquired and liabilities assumed (Details) - Inigo Limited [Member] $ in Thousands	Feb. 02, 2026 USD ($)
Assets acquired
Investments	$ 2,440,780
Cash	16,945
Restricted cash	62,973
Accrued investment income	16,522
Premiums and other receivables	562,311
Reinsurance recoverables	305,154
VOBA	204,999
Other acquired intangible assets	419,364
Other Assets	222,453
Total assets acquired	4,251,501
Liabilities assumed
Reserve for losses and LAE	1,364,254
Unearned premiums	747,375
Net deferred tax liability	48,743
Other liabilities	425,292
Total liabilities assumed	2,585,664
Net assets acquired	1,665,837
Total consideration paid	1,671,120
Preliminary allocation to goodwill	$ 5,283

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of asset acquired in business combination and recognized at acquisition date.

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Amount of cash and cash equivalent acquired in business combination and recognized at acquisition date.

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Amount of investment in debt and equity securities acquired in business combination and recognized at acquisition date, classified as current.

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Amount of deferred tax liability assumed in business combination and recognized at acquisition date.

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Amount of identifiable intangible asset acquired in business combination and recognized at acquisition date. Excludes goodwill and financial asset.

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Amount of asset acquired in excess of (less than) liability assumed in business combination and recognized at acquisition date. Excludes goodwill.

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Amount of liability assumed in business combination and recognized at acquisition date, classified as other and noncurrent.

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