Commitments and Contingencies - Asbestos Carrying Amount (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Loss Contingencies [Line Items]
Liability for Asbestos and Environmental Claims, Gross, Period Increase (Decrease)			$ (8,030)	$ 5,510
Loss Contingency, Receivable, Period Increase (Decrease)			35,800	0
Asbestos-related benefit (costs), net			27,770	(5,510)
Liability for Asbestos and Environmental Claims, Gross, Payment for Claims			2,160	2,430
Loss Contingency, Receivable, Proceeds			(1,100)	0
Asbestos [Member]
Loss Contingencies [Line Items]
Liability for Asbestos and Environmental Claims, Gross	$ (35,530)	$ (29,660)	(35,530)	(29,660)	$ (31,000)	$ (26,580)
Loss Contingency, Receivable	34,700	0	34,700	0		0
Liability for Asbestos and Environmental Claims, Net	(830)	(29,660)	(830)	(29,660)		$ (26,580)
Asbestos-related benefit (costs), net	27,770	(5,510)	27,770	(5,510)
Liability for Asbestos and Environmental Claims, Net, Payment for Claims			1,060	2,430
Loss Contingency, Accrual, Current	(2,830)	(2,450)	(2,830)	(2,450)
Loss Contingency, Receivable, Current	2,820	0	2,820	0
Loss Contingency, Accrual, Noncurrent	(32,700)	(27,210)	(32,700)	(27,210)
Loss Contingency, Receivable, Noncurrent	$ 31,880	$ 0	$ 31,880	$ 0

Carrying amount as of the balance sheet date of reserves for the costs of settling insured claims and costs incurred in the claims settlement process attributable to asbestos and environmental claims, before estimated recoveries from reinsurers.

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