Retirement Plans (Tables)

9 Months Ended

Sep. 30, 2025

Retirement Benefits [Abstract]

Components of Net Periodic Benefits Cost

The following table shows the components of net periodic benefit cost included in expense for the periods indicated.

	Three Months Ended September 30,
	Pension Benefits						Other Post-Retirement Benefits
(in thousands)	2025			2024			2025			2024
Service cost	$	1,455		$	1,900		$	5		$	7
Interest cost		6,269			6,056			115			135
Expected return on plan assets		(11,263	)		(11,901	)		—			—
Amortization of net (gain) or loss and prior service costs		1,073			1,530			(338	)		(215	)
Net periodic benefit cost	$	(2,466	)	$	(2,415	)	$	(218	)	$	(73	)

	Nine Months Ended September 30,
	Pension Benefits						Other Post-Retirement Benefits
($ in thousands)	2025			2024			2025			2024
Service cost (benefit)	$	4,606		$	5,806		$	23		$	25
Interest cost		18,817			17,986			423			443
Expected return on plan assets		(33,797	)		(35,724	)		—			—
Amortization of net (gain) or loss and prior service costs		3,331			4,154			(708	)		(585	)
Net periodic benefit cost	$	(7,043	)	$	(7,778	)	$	(262	)	$	(117	)