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Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2024

Retirement Benefits [Abstract]

Schedule of Reconciliation of Changes in Benefit Obligation and Fair value of Plan Assets As Well As the Funded Status Recognized in the Consolidated Statements

The following table provides a reconciliation of changes in benefit obligation and fair value of plan assets, as well as the funded status recognized in the Company’s consolidated statements of condition for the Pension Plans and postretirement benefit plan for the years ended December 31, 2024 and 2023.

		Pension Benefits								Postretirement Benefits
(dollars in thousands)		2024				2023				2024				2023
Benefit Obligation at Beginning of Year		$	78,568			$	84,454			$	23,314			$	21,929
Service Cost			—				—				438				376
Interest Cost			4,078				4,468				1,242				1,186
Purchase			—				(4,115	)			—				—
Actuarial Losses (Gains)			(839	)			1,070				270				1,496
Employer Benefits Paid 1			(6,964	)			(7,309	)			(1,606	)			(1,673	)
Benefit Obligation at End of Year		$	74,843			$	78,568			$	23,658			$	23,314
Fair Value of Plan Assets at Beginning of Year		$	78,214			$	79,324			$	—			$	—
Actual Return on Plan Assets			3,029				9,846				—				—
Employer Contributions			462				468				1,606				1,673
Purchase			—				(4,115	)			—				—
Employer Benefits Paid 1			(6,964	)			(7,309	)			(1,606	)			(1,673	)
Fair Value of Plan Assets at End of Year		$	74,741			$	78,214			$	—			$	—
Funded Status at End of Year 2		$	(102	)		$	(354	)		$	(23,658	)		$	(23,314	)

1.Participants' contributions relative to the postretirement benefit plan were offset against employer benefits paid in the table above. Participants' contributions for postretirement benefits were $0.8 million for the years ended December 31, 2024 and 2023.

2.Amounts are recognized in Retirement Benefits Payable in the consolidated statements of condition.

Schedule of Amounts Recognized in Accumulated Other Comprehensive Income (Loss)

The following presents the amounts recognized in the Company’s accumulated other comprehensive income for the Pension Plans and postretirement benefit plan as of December 31, 2024 and 2023.

		Pension Benefits								Postretirement Benefits
(dollars in thousands)		2024				2023				2024				2023
Amounts Recognized in Accumulated Other    Comprehensive Income (Loss), Net of Tax
Net Actuarial Gains (Losses)		$	(28,033	)		$	(28,512	)		$	3,896			$	4,330
Net Prior Service Credit			—				—				741				922
Total Amounts Recognized in Accumulated Other    Comprehensive Income (Loss), Net of Tax		$	(28,033	)		$	(28,512	)		$	4,637			$	5,252

Schedule of Components of Net Periodic Benefit Cost

Components of net periodic benefit cost for the Company’s Pension Plans and the postretirement benefit plan are presented in the following table for the years ended December 31, 2024, 2023 and 2022.

		Pension Benefits												Postretirement Benefits
(dollars in thousands)		2024				2023				2022				2024				2023				2022
Service Cost		$	—			$	—			$	—			$	438			$	376			$	584
Interest Cost			4,078				4,468				3,097				1,242				1,186				861
Expected Return on Plan Assets			(4,705	)			(5,238	)			(4,840	)			—				—				—
Amortization of:
Prior Service Credit 1			—				—				—				(246	)			(246	)			(246	)
Net Actuarial Losses (Gains) 1			1,484				1,258				2,175				(321	)			(507	)			—
Net Periodic Benefit Cost		$	857			$	488			$	432			$	1,113			$	809			$	1,199

1.Represents reclassification adjustments from accumulated other comprehensive income during the period.

Schedule of Assumptions Used to Determine the Benefit Obligations/net Periodic Cost

Assumptions used to determine the benefit obligations as of December 31, 2024 and 2023 for the Company’s Pension Plans and postretirement benefit plan were as follows:

		Pension Benefits								Postretirement Benefits
		2024				2023				2024				2023
Weighted Average Assumptions as of December 31:
Discount Rate			5.67	%			5.44	%			5.74	%			5.51	%
Health Care Cost Trend Rate Assumed For Next Year			—				—				7.10	%			6.90	%
Ultimate Trend Rate			—				—				4.00	%			4.00	%
Year That the Rate Reaches the Ultimate Trend Rate			—				—			2046				2047

Schedule of Assumptions Used in Calculation Net Periodic Benefit Cost

Assumptions used to determine the net periodic benefit cost for the Company’s Pension Plans and postretirement benefit plan for the years ended December 31, 2024, 2023 and 2022 were as follows:

		Pension Benefits												Postretirement Benefits
		2024				2023				2022				2024				2023				2022
Weighted Average Assumptions as of December 31:
Discount Rate			5.44	%			5.51	%			2.89	%			5.51	%			5.58	%			3.00	%
Expected Long-Term Rate of Return on Plan Assets			6.00	%			6.00	%			5.25	%			—				—				—
Health Care Cost Trend Rate			—				—				—				6.90	%			6.20	%			5.70	%

Schedule of Expected Benefits to be Paid in Each of the Next Five Years and in the Aggregate for the Five Years Thereafter

As of December 31, 2024, expected benefits to be paid in each of the next five years and in the aggregate for the five years thereafter were as follows:

(dollars in thousands)		Pension Benefits				Postretirement Benefits
2025		$	7,207			$	1,701
2026			7,108				1,695
2027			7,001				1,759
2028			6,855				1,777
2029			6,708				1,829
Years 2030-2034			30,695				9,515

Schedule of the Fair Values of the Retirement Plan Assets by Asset Category

The fair values of the Retirement Plan assets as of December 31, 2024 and 2023 by asset category were as follows:

		Fair Value Measurements as of December 31,
(dollars in thousands)		2024				2023
Cash		$	857			$	6,214
Collective Investment Funds			73,884				72,000
Total Investments at Fair Value		$	74,741			$	78,214

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