v3.26.1
Business Combinations - Schedule of Goodwill Intangible Assets and VOBA (Details) - Inigo Limited [Member] - USD ($)
$ in Thousands
Jun. 30, 2026
Feb. 02, 2026
Business Combination [Line Items]    
Goodwill and indefinite-lived intangible assets, gross carrying amount $ 219,064  
Goodwill and indefinite-lived intangible assets, accumulated amortization 0  
Goodwill and indefinite-lived intangible assets, net carrying amount 219,064  
Finite-lived intangible assets, gross carrying amount 205,583  
Finite-lived intangible assets, accumulated amortization (9,805)  
Finite-lived intangible assets, net carrying amount 195,778  
Goodwill and other acquired intangible assets, gross carrying amount 424,647  
Goodwill and other acquired intangible assets, accumulated amortization (9,805)  
Goodwill and other acquired intangible assets, net carrying amount 414,842  
VOBA asset - unearned premiums, gross carrying amount 204,999 [1] $ 204,999
VOBA asset - unearned premiums, accumulated amortization [1] (123,920)  
VOBA asset - unearned premiums, net carrying amount [1] 81,079  
VOBA liability - reserves, gross carrying amount (39,083) [2] (39,083)
VOBA liability - reserves, accumulated amortization [2] 6,323  
VOBA liability - reserves, net carrying amount [2] (32,760)  
Total VOBA, gross carrying amount 165,916 $ 165,916
Total VOBA, accumulated amortization (117,597)  
Total VOBA, net carrying amount 48,319  
Goodwill    
Business Combination [Line Items]    
Goodwill and indefinite-lived intangible assets, gross carrying amount 5,283  
Goodwill and indefinite-lived intangible assets, accumulated amortization 0  
Goodwill and indefinite-lived intangible assets, net carrying amount 5,283  
Lloyd's Syndicate Capacity and Related Rights    
Business Combination [Line Items]    
Goodwill and indefinite-lived intangible assets, gross carrying amount 213,781  
Goodwill and indefinite-lived intangible assets, accumulated amortization 0  
Goodwill and indefinite-lived intangible assets, net carrying amount 213,781  
Broker Relationships Large Brokers [Member]    
Business Combination [Line Items]    
Finite-lived intangible assets, gross carrying amount 115,424  
Finite-lived intangible assets, accumulated amortization (4,008)  
Finite-lived intangible assets, net carrying amount 111,416  
Broker Relationships Other Brokers [Member]    
Business Combination [Line Items]    
Finite-lived intangible assets, gross carrying amount 46,336  
Finite-lived intangible assets, accumulated amortization (2,145)  
Finite-lived intangible assets, net carrying amount 44,191  
Brand [Member]    
Business Combination [Line Items]    
Finite-lived intangible assets, gross carrying amount 31,160  
Finite-lived intangible assets, accumulated amortization (2,597)  
Finite-lived intangible assets, net carrying amount 28,563  
Technology [Member]    
Business Combination [Line Items]    
Finite-lived intangible assets, gross carrying amount 12,663  
Finite-lived intangible assets, accumulated amortization (1,055)  
Finite-lived intangible assets, net carrying amount $ 11,608  
[1] Included in deferred policy acquisition costs and VOBA on our condensed consolidated balance sheets.
[2] Included in reserves for losses and LAE on our condensed consolidated balance sheets.