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Pensions (Details) - Pension Plans [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Components of Net Periodic Pension Cost [Abstract]
Service cost	$ 133	$ 159
Interest cost	495	463
Expected return on plan assets	(767)	(791)
Amortization of prior service cost	(3)	(3)
Rate-regulated adjustment	142	561
Net periodic pension cost	0	$ 389
Employer Contributions [Abstract]
Estimated employer contributions in 2025			$ 0
Employer contributions made in 2025	0
Estimated remaining employer contributions in 2025	$ 0

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