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Commitments and Contingent Liabilities - Environmental - Narrative (Details) $ in Thousands, € in Millions	1 Months Ended				3 Months Ended		12 Months Ended
	Dec. 31, 2024 USD ($)	Nov. 30, 2024 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2019 USD ($) Lawsuit	Mar. 31, 2025 USD ($) Lawsuit Owner	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Mar. 31, 2025 EUR (€) Lawsuit	Feb. 28, 2025 EUR (€)	Sep. 30, 2024 USD ($)	Oct. 31, 2020 Lawsuit	Sep. 30, 2020 Lawsuit
Environmental Remediation [Line Items]
Environmental remediation expense					$ 10,000	$ 13,000
Environmental Remediation Expense, before Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration]					Restructuring Charges Asset Related And Other Charges	Restructuring Charges Asset Related And Other Charges
Civil penalty and investigative costs					$ 68,000		$ 68,000
Accrual for environmental remediation activities	$ 571,000				$ 567,000		571,000
Number of lawsuits filed \| Lawsuit					16			16
Environmental liabilities indemnification maximum amount					$ 78,000
Obligation related to indemnification	0				$ 0		0
Indemnification expiration period					2026-12
Outstanding amount in escrow account										$ 50,000
Loss contingency accrual period decrease			$ 250		$ 25,000		24,000
Amount of penalty assessed for violation of F-gas regulation \| €									€ 1.0
Off-site Replacement Drinking Water Supplies [Member]
Environmental Remediation [Line Items]
Accrued for operation, maintenance, and monitoring period					20 years
Accrual for environmental remediation activities	141,000				$ 137,000		141,000
Disbursements period					20 years
Assessment And Sampling Drinking Water Supplies [Member]
Environmental Remediation [Line Items]
Accrual for environmental remediation activities	21,000				$ 22,000		21,000
On-site Surface Water and Groundwater Remediation [Member]
Environmental Remediation [Line Items]
Estimated cost of remediation	188,000				$ 185,000		188,000
OM&M projected paid period					20 years
PFAS Matters [Member]
Environmental Remediation [Line Items]
Civil penalty and investigative costs		$ 100,000		$ 13,000
Number of lawsuits filed \| Lawsuit				4
PFOA [Member]
Environmental Remediation [Line Items]
Number of lawsuits filed \| Lawsuit											2	3
Compensatory and Punitive Damages [Member]
Environmental Remediation [Line Items]
Number of private well owners seeking for damages \| Owner					2,600
Number of lawsuits filed \| Lawsuit					2			2
Fayetteville Works, Fayetteville, North Carolina [Member]
Environmental Remediation [Line Items]
Environmental remediation expense					$ 4,000	$ 7,000
Accrual for environmental remediation activities	351,000				$ 344,000		$ 351,000
Fayetteville Works, Fayetteville, North Carolina [Member] \| Groundwater Extraction And Treatment System [Member] \| On-site Surface Water and Groundwater Remediation [Member]
Environmental Remediation [Line Items]
Accrued for operation, maintenance, and monitoring period					20 years
Estimated operation starting year					2023
Fayetteville Works, Fayetteville, North Carolina [Member] \| PFAS Matters [Member]
Environmental Remediation [Line Items]
Percentage of efficiency to control PFAS					99.99%
Reduction of PFAS maximum period					2 years
Percentage of baseline					75.00%
Minimum [Member]
Environmental Remediation [Line Items]
Average time frame of disbursements of environmental site remediation					15 years
Maximum [Member]
Environmental Remediation [Line Items]
Average time frame of disbursements of environmental site remediation					20 years
Loss contingency, potential additional loss					$ 710,000
Conditional fine per violation \| €								€ 3.7
Civil penalties on violation	$ 100