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Commitments and Contingent Liabilities - Environmental - Narrative (Details) $ in Thousands, € in Millions		1 Months Ended						3 Months Ended		6 Months Ended		12 Months Ended
	Aug. 01, 2025	Oct. 31, 2025 USD ($)	May 31, 2025 EUR (€)	Dec. 31, 2024 USD ($)	Nov. 30, 2024 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2019 USD ($) Lawsuit	Jun. 30, 2026 USD ($) Owner	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) Owner	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Feb. 28, 2025 EUR (€)	Dec. 31, 2024 EUR (€)	Oct. 31, 2020 Lawsuit	Sep. 30, 2020 Lawsuit
Environmental Remediation [Line Items]
Environmental remediation expense								$ 153,000	$ 56,000	$ 166,000	$ 67,000
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	Restructuring Charges Asset Related And Other Charges	Restructuring Charges Asset Related And Other Charges
Civil penalty and investigative costs												$ 161,000
Accrual for environmental remediation activities								$ 795,000		$ 795,000		618,000
Environmental liabilities indemnification maximum amount								78,000		78,000
Obligation related to indemnification								0		$ 0		0
Indemnification expiration period										2026-12
Loss contingency accrual period decrease						$ 250				$ 24,000		26,000
Amount of penalty assessed for violation of F-gas regulation \| €													€ 1.0
Increase in environmental and legal remediation reserves									$ 60,000
Surety bonds		$ 108,000
Letter decision reduction penalty percentage	200.00%
Amount of penalty for alleging infringement \| €			€ 1.0
Aggregate environmental and legal remediation-related liabilities								146,000		$ 146,000
Environmental and legal remediation, percentage discounted at risk free rate										5.00%
Environmental and legal remediation-related liabilities, gross								225,000		$ 225,000
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								121,000		$ 121,000		124,000
Disbursements period										20 years
Assessment And Sampling Drinking Water Supplies [Member]
Environmental Remediation [Line Items]
Accrual for environmental remediation activities								18,000		$ 18,000		20,000
On-site Surface Water and Groundwater Remediation [Member]
Environmental Remediation [Line Items]
Estimated cost of remediation								$ 172,000		$ 172,000		176,000
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								2,900		2,900
Fayetteville Works, Fayetteville, North Carolina [Member]
Environmental Remediation [Line Items]
Environmental remediation expense								$ 5,000		$ 8,000
Accrual for environmental remediation activities								311,000		311,000		$ 320,000
Amount reserved for civil penalty								203,000		$ 203,000
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%
Fayetteville Works, Fayetteville, North Carolina [Member] \| 2026 Consent Decree [Member]
Environmental Remediation [Line Items]
Civil penalty expected to be paid								23,000		$ 23,000
Civil penalty payment, term										3 years
Amount expected to fund in additional mitigation projects										$ 90,000
Fund in additional mitigation projects, term										15 years
Amount reserved for civil penalty								23,000		$ 23,000
Additional environmental remediation reserves recognized								141,000		$ 141,000
Minimum [Member]
Environmental Remediation [Line Items]
Average time frame of disbursements of environmental site remediation										15 years
Remediation funding source										$ 177,000
Maximum [Member]
Environmental Remediation [Line Items]
Average time frame of disbursements of environmental site remediation										20 years
Loss contingency, potential additional loss								$ 700,000		$ 700,000
Conditional fine per violation \| €														€ 3.7
Payment of attorneys' fees and costs										1,000
Civil penalties on violation				$ 100
Remediation funding source										$ 1,048,000