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Revenue Recognition (Disaggregation of revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Sales	$ 821,058	$ 857,308
Original Equipment
Disaggregation of Revenue [Line Items]
Sales	383,182	406,884
Aftermarket
Disaggregation of Revenue [Line Items]
Sales	437,876	450,424
FPD
Disaggregation of Revenue [Line Items]
Sales	573,986	602,166
FPD | Original Equipment
Disaggregation of Revenue [Line Items]
Sales	200,340	214,164
FPD | Aftermarket
Disaggregation of Revenue [Line Items]
Sales	373,646	388,002
FCD
Disaggregation of Revenue [Line Items]
Sales	247,072	255,142
FCD | Original Equipment
Disaggregation of Revenue [Line Items]
Sales	182,842	192,720
FCD | Aftermarket
Disaggregation of Revenue [Line Items]
Sales	64,230	62,422
North America
Disaggregation of Revenue [Line Items]
Sales	346,344	314,222
North America | FPD
Disaggregation of Revenue [Line Items]
Sales	238,710	223,975
North America | FCD
Disaggregation of Revenue [Line Items]
Sales	107,634	90,247
Latin America
Disaggregation of Revenue [Line Items]
Sales	53,169	48,858
Latin America | FPD
Disaggregation of Revenue [Line Items]
Sales	47,619	42,040
Latin America | FCD
Disaggregation of Revenue [Line Items]
Sales	5,550	6,818
Middle East And Africa
Disaggregation of Revenue [Line Items]
Sales	93,052	110,228
Middle East And Africa | FPD
Disaggregation of Revenue [Line Items]
Sales	71,701	82,541
Middle East And Africa | FCD
Disaggregation of Revenue [Line Items]
Sales	21,351	27,687
Asia Pacific
Disaggregation of Revenue [Line Items]
Sales	169,392	203,309
Asia Pacific | FPD
Disaggregation of Revenue [Line Items]
Sales	101,599	124,648
Asia Pacific | FCD
Disaggregation of Revenue [Line Items]
Sales	67,793	78,661
Europe
Disaggregation of Revenue [Line Items]
Sales	159,101	180,691
Europe | FPD
Disaggregation of Revenue [Line Items]
Sales	114,357	128,962
Europe | FCD
Disaggregation of Revenue [Line Items]
Sales	$ 44,744	$ 51,729

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