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Supplemental Reinsurance Premiums
12 Months Ended
Dec. 31, 2024
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]  
Supplemental Reinsurance Premiums
202420232022
 (Amounts in thousands)
Direct amounts$5,196,699 $4,368,342 $4,022,611 
Ceded to other companies(136,698)(109,445)(80,950)
Assumed15,455 15,481 10,821 
Net amounts$5,075,456 $4,274,378 $3,952,482