RETIREMENT BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2025

Schedule Of Estimated Benefit Obligation Weighted Average Assumptions Table Text Block

Weighted-average assumptions used to determine the estimated benefit obligation and period costs as of and for the year ended December 31, 2025, 2024 and 2023 are as follows:


	Year Ended December 31,
	2025				2024				2023
	Pension Benefits		Postretirement Benefits		Pension Benefits		Postretirement Benefits		Pension Benefits		Postretirement Benefits
Weighted-average assumptions used to determine pension benefit obligation:
Discount rate	5.52	%	5.39	%	5.65	%	5.63	%	5.06	%	5.06	%
Rate of compensation increase	3.50	%	N/A		3.50	%	N/A		3.50	%	N/A
Initial healthcare cost trend rate	N/A		—	%	N/A		3.61	%	N/A		7.50	%
Ultimate healthcare cost trend rate	N/A		4.04	%	N/A		4.04	%	N/A		4.04	%
Year ultimate healthcare cost trend rate is reached	N/A		2075		N/A		2075		N/A		2075
Weighted-average assumptions used to determine net periodic pension and postretirement costs:
Discount rate	5.65	%	5.63	%	5.06	%	5.50	%	5.31	%	5.29	%

Expected long-term return on plan assets	5.00	%	N/A		5.00	%	N/A		N/A		N/A
Rate of compensation increases	3.50	%	N/A		3.50	%	N/A		3.50	%	N/A
Average future working lifetime	9.58 years		12.34 years		9.89 years		11.27 years		10.50 years		9.24 years
Initial healthcare cost trend rate	N/A		3.61	%	N/A		7.50	%	N/A		5.80	%
Ultimate healthcare cost trend rate	N/A		4.04	%	N/A		4.04	%	N/A		3.94	%
Year ultimate healthcare cost trend rate is reached	N/A		2075		N/A		2075		N/A		2075

Schedule of Expected Benefit Payments

The following benefit payments, which reflect expected future service and compensation increases, as appropriate, are expected to be made from the Transtar defined benefit plans:


	Pension Benefits		Postretirement Benefits
2026	$	737	$	281
2027	1,026		353
2028	1,314		438
2029	1,594		493
2030	1,537		519
Years 2031-2035	9,269		3,702

Schedule of Changes in Expected Benefit Obligation and Plan Assets

The following table summarizes the changes in our projected benefit obligation and plan assets as of December 31, 2025 and 2024. Service costs are recorded in Operating expenses, while other net costs are recorded in Other income in the Consolidated Statements of Operations.


	Year Ended December 31,
	2025				2024
	Pension Benefits		Postretirement Benefits		Pension Benefits		Postretirement Benefits
Projected Benefit Obligation
Projected benefit obligation, beginning of period	$	15,484	$	5,656	$	12,282	$	32,604
Plan amendment	—		1,183		40		(21,788)
Service costs	1,477		357		1,560		800
Interest costs	910		367		731		700
Actuarial losses (gains)	1,104		102		1,068		(6,570)
Benefit paid	(418)		(131)		(197)		(90)
Projected benefit obligation, end of period	$	18,557	$	7,534	$	15,484	$	5,656

Plan Assets
Fair value of plan assets, beginning of period	$	5,233	$	—	$	3,188	$	—

Actual return on plan assets	514		—		301		—
Employer contributions	2,756		131		1,941		—
Other benefits paid	(418)		(131)		(197)		—
Fair value of plan assets, end of period	$	8,085	$	—	$	5,233	$	—
Funded status at end of year	$	(10,472)	$	(7,534)	$	(10,251)	$	(5,656)

Schedule of Amounts Recognized in Balance Sheet

As of December 31, 2025 and 2024, the following amounts were recognized in the Consolidated Balance Sheets:


	Year Ended December 31,
	2025				2024
	Pension Benefits		Postretirement Benefits		Pension Benefits		Postretirement Benefits
Current liabilities	$	—	$	274	$	—	$	143
Non-current liabilities	10,472		7,260		10,251		5,513
Net amounts recognized at end of period	$	10,472	$	7,534	$	10,251	$	5,656

Schedule of Amounts Recognized in Other Comprehensive Income (Loss)

The following table summarizes the components of net periodic pension cost and other amounts recognized in Other comprehensive income in the Consolidated Statements of Comprehensive (Loss) Income for the years ended December 31, 2025, 2024 and 2023:


	Year Ended December 31,
	2025				2024				2023
	Pension Benefits		Postretirement Benefits		Pension Benefits		Postretirement Benefits		Pension Benefits		Postretirement Benefits
Prior service cost (credit)	$	—	$	1,183	$	40	$	(21,789)	$	—	$	—
Amortization of prior service cost	(8)		1,739		—		1,107		—		(159)
Actuarial loss (gain)	906		102		970		(6,570)		1,432		893
Amortization of actuarial gain	—		432		—		390		61		—
Total recognized in other comprehensive loss (income)	$	898	$	3,456	$	1,010	$	(26,862)	$	1,493	$	734