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Unpaid Losses And Loss Adjustment Expenses (Tables)
6 Months Ended
Jun. 30, 2024
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims [Abstract]  
Reconciliation Of Consolidated Reserves For Losses And Loss Adjustment Expenses
The following table presents a reconciliation of consolidated beginning and ending reserves for losses and loss adjustment expenses.

Six Months Ended June 30,
(dollars in thousands)20242023
Gross reserves for losses and loss adjustment expenses, beginning of year$23,483,321 $20,947,898 
Reinsurance recoverables on unpaid losses, beginning of year8,820,567 7,994,884 
Net reserves for losses and loss adjustment expenses, beginning of year14,662,754 12,953,014 
Effect of foreign currency rate changes on beginning of year balance(41,045)46,000 
Adjusted net reserves for losses and loss adjustment expenses, beginning of year14,621,709 12,999,014 
Incurred losses and loss adjustment expenses:
Current accident year2,741,620 2,500,098 
Prior accident years(221,298)(139,208)
Total incurred losses and loss adjustment expenses2,520,322 2,360,890 
Payments:
Current accident year196,079 164,713 
Prior accident years1,639,765 1,461,051 
Total payments1,835,844 1,625,764 
Effect of foreign currency rate changes on current year activity(1,272)(2,949)
Change in net reserves for losses and loss adjustment expenses of Markel CATCo Re (see note 12)
(25,726)(131,874)
Reinsurance recoverable for retroactive reinsurance transaction (125,067)
Net reserves for losses and loss adjustment expenses, end of period15,279,189 13,474,250 
Reinsurance recoverables on unpaid losses9,367,429 7,900,563 
Gross reserves for losses and loss adjustment expenses, end of period$24,646,618 $21,374,813