Pension and Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025	Dec. 31, 2024
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		$ 24,759	$ 7,252	$ 35,768	$ 32,439
Non-Restructuring Charges		5,293		6,313	3,917
Total Realignment Program Charges				42,081	36,356
Liability recorded		542,705		$ 542,705			$ 561,486
Vesting period				3 years
Restricted Stock
Components of the net periodic cost for retirement and postretirement benefits
Vesting period				3 years
Subtotal–Reportable Segments
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		25,283		$ 36,292	32,467
Non-Restructuring Charges		3,214		4,517	3,225
Total Realignment Program Charges				40,809	35,692
Eliminations and All Other
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		(524)		(524)	(28)
Non-Restructuring Charges		2,079		1,796	692
Total Realignment Program Charges				1,272	664
FPD
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		21,315		27,539
Non-Restructuring Charges		401		(204)
Total Realignment Program Charges				27,335
FPD | Subtotal–Reportable Segments
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges					20,499
Non-Restructuring Charges					1,374
Total Realignment Program Charges					21,873
FCD
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges				8,753
Non-Restructuring Charges				4,721
Total Realignment Program Charges				13,474
Cost of Sales
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		22,329	5,514	35,022	17,066
Non-Restructuring Charges		3,152		5,578	2,940
Total Realignment Program Charges				40,600	20,006
Cost of Sales | Subtotal–Reportable Segments
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		22,853		35,546	17,066
Non-Restructuring Charges		3,161		5,653	3,168
Total Realignment Program Charges				41,199	20,234
Cost of Sales | Eliminations and All Other
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		(524)		(524)	0
Non-Restructuring Charges		(9)		(75)	(228)
Total Realignment Program Charges				(599)	(228)
Cost of Sales | FPD
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		21,105		25,508
Non-Restructuring Charges		523		987
Total Realignment Program Charges				26,495
Cost of Sales | FPD | Subtotal–Reportable Segments
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges					19,264
Non-Restructuring Charges					1,573
Total Realignment Program Charges					20,837
Cost of Sales | FCD
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges				10,038
Non-Restructuring Charges				4,666
Total Realignment Program Charges				14,704
Selling, General and Administrative Expenses
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		2,430	1,738	746	2,392
Non-Restructuring Charges		2,141		735	977
Total Realignment Program Charges				1,481	3,369
Selling, General and Administrative Expenses | Subtotal–Reportable Segments
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		2,430		746	2,420
Non-Restructuring Charges		53		(1,136)	57
Total Realignment Program Charges				(390)	2,477
Selling, General and Administrative Expenses | Eliminations and All Other
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		0		0	(28)
Non-Restructuring Charges		2,088		1,871	920
Total Realignment Program Charges				1,871	892
Selling, General and Administrative Expenses | FPD
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges		210		2,031
Non-Restructuring Charges		(122)		(1,191)
Total Realignment Program Charges				840
Selling, General and Administrative Expenses | FPD | Subtotal–Reportable Segments
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges					1,235
Non-Restructuring Charges					(199)
Total Realignment Program Charges					1,036
Selling, General and Administrative Expenses | FCD
Components of the net periodic cost for retirement and postretirement benefits
Restructuring Charges				(1,285)
Non-Restructuring Charges				55
Total Realignment Program Charges				(1,230)
Domestic Plan
Components of the net periodic cost for retirement and postretirement benefits
Service cost		200	6,000	600	18,000
Interest cost		5,500	5,200	16,400	15,600
Expected return on plan assets		(5,800)	(5,800)	(17,300)	(17,400)
Amortization of unrecognized prior service cost and other costs		0	0	100	0
Amortization of unrecognized net loss (gain)		100	0	300	0
Net periodic cost recognized		1,500	5,400	4,600	16,200
Settlement loss		1,500	0	4,500	0
Liability recorded						$ 5,000
Domestic Plan | Maximum | Forecast
Components of the net periodic cost for retirement and postretirement benefits
Settlement loss	$ 6,000
Domestic Plan | Minimum | Forecast
Components of the net periodic cost for retirement and postretirement benefits
Settlement loss	$ 5,000
Foreign Plan
Components of the net periodic cost for retirement and postretirement benefits
Service cost		1,600	1,300	4,800	3,900
Interest cost		3,500	3,200	10,400	9,200
Expected return on plan assets		(2,000)	(2,100)	(6,200)	(6,000)
Amortization of unrecognized prior service cost and other costs		(100)	100	100	300
Amortization of unrecognized net loss (gain)		600	700	1,700	2,000
Net periodic cost recognized		3,600	3,200	10,800	9,400
Settlement loss		0	0	0	0
Postretirement Medical Benefits
Components of the net periodic cost for retirement and postretirement benefits
Service cost		0	0	0	0
Interest cost		200	200	400	500
Expected return on plan assets		0	0	0	0
Amortization of unrecognized prior service cost and other costs		0	0	100	100
Amortization of unrecognized net loss (gain)		(100)	100	(300)	100
Net periodic cost recognized		100	300	200	700
Settlement loss		$ 0	$ 0	$ 0	$ 0