Retirement Plans (Table)

6 Months Ended

Jun. 30, 2024

Retirement Benefits [Abstract]

Schedule of Components of Net Periodic Benefit Cost

The following tables provide information about the Pension Plan:

	Pension Plan
	Quarter ended June 30,			Six Months ended June 30,
($ in thousands)	2024		2023	2024		2023
Net Periodic Pension Cost (Benefit):
Interest cost	$	3,888	3,866	$	7,776	7,732
Expected return on plan assets	(5,383)		(5,772)	(10,765)		(11,545)
Amortization of unrecognized net actuarial loss	955		750	1,910		1,501
Total net periodic pension cost (benefit)1	$	(540)	(1,156)	$	(1,079)	(2,312)

1The components of net periodic pension cost (benefit) are included within "Loss and loss expense incurred" and "Other insurance expenses" on the Consolidated Statements of Income.

Schedule of Weighted-Average Expense Assumptions

	Pension Plan
	Six Months ended June 30,
	2024		2023
Weighted-Average Expense Assumptions:
Discount rate	5.02	%	5.21	%
Effective interest rate for calculation of interest cost	4.91		5.09
Expected return on plan assets	6.40		6.90