v3.26.1
Fair Value (Tables)
 6 Months Ended
Jun. 30, 2026
Fair Value Disclosures [Abstract]  
Schedule of Financial Instruments Measured at Fair Value on a Recurring Basis
The following table presents the financial instruments measured at fair value on a recurring basis:

June 30, 2026
($ in thousands)
Level 1Level 2Level 3Total
Fixed maturities:
U.S. government treasuries$— $635,975 $— $635,975 
U.S. states, territories and municipalities— 10,601 — 10,601 
Non-U.S. sovereign governments and supranationals— 108,784 — 108,784 
Corporate— 1,732,278 — 1,732,278 
Residential mortgage-backed securities - Agency— 217,614 — 217,614 
Residential mortgage-backed securities - Non-agency— 56,722 — 56,722 
Commercial mortgage-backed securities - Non-agency— 78,390 — 78,390 
Other asset-backed securities— 273,690 — 273,690 
Total fixed maturities— 3,114,054 — 3,114,054 
Short-term investments— 356,453 — 356,453 
Total$— $3,470,507 $— $3,470,507 

December 31, 2025
($ in thousands)
Level 1Level 2Level 3Total
Fixed maturities:
U.S. government treasuries$— $797,834 $— $797,834 
U.S. states, territories and municipalities— 12,960 — 12,960 
Non-U.S. sovereign governments and supranationals— 110,861 — 110,861 
Corporate— 1,584,144 — 1,584,144 
Residential mortgage-backed securities - Agency— 365,650 — 365,650 
Residential mortgage-backed securities - Non-agency— 32,545 — 32,545 
Commercial mortgage-backed securities - Non-agency— 94,698 — 94,698 
Other asset-backed securities— 239,851 — 239,851 
Total fixed maturities— 3,238,543 — 3,238,543 
Short-term investments— 200,459 — 200,459 
Total$— $3,439,002 $— $3,439,002