v3.25.2

Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Defined Benefit Plan Disclosure [Line Items]
Service cost, net	$ 4,894	$ 4,289	$ 9,622	$ 8,706
Interest cost on projected benefit obligations	5,030	5,567	9,788	11,245
Expected return on plan assets	(12,457)	(10,418)	(24,072)	(21,131)
Recognition of prior service cost	(1,064)	(1,139)	(2,042)	(2,319)
Recognition of actuarial losses/(gains)	5,090	4,166	9,815	8,456
Net periodic pension cost/(credit)	1,493	2,465	3,111	4,957
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost, net	233	397	466	794
Interest cost on projected benefit obligations	1,201	1,191	2,402	2,383
Expected return on plan assets	(1,428)	(1,368)	(2,856)	(2,736)
Recognition of prior service cost	0	0	0	0
Recognition of actuarial losses/(gains)	393	520	786	1,041
Net periodic pension cost/(credit)	399	740	798	1,482
Other Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost, net	4,661	3,892	9,156	7,912
Interest cost on projected benefit obligations	3,823	4,370	7,374	8,849
Expected return on plan assets	(11,029)	(9,050)	(21,216)	(18,395)
Recognition of prior service cost	(1,045)	(1,120)	(2,004)	(2,281)
Recognition of actuarial losses/(gains)	4,689	3,638	9,013	7,399
Net periodic pension cost/(credit)	1,099	1,730	2,323	3,484
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year, Description	25,400		25,400
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost, net	0	0	0	0
Interest cost on projected benefit obligations	6	6	12	13
Expected return on plan assets	0	0	0	0
Recognition of prior service cost	(19)	(19)	(38)	(38)
Recognition of actuarial losses/(gains)	8	8	16	16
Net periodic pension cost/(credit)	$ (5)	$ (5)	$ (10)	$ (9)

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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Amount of net periodic benefit cost (credit) for defined benefit plan.

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METTLER TOLEDO INTERNATIONAL INC/ 10-Q