Revenue Recognition (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Sales	$ 919,500	$ 866,100	$ 898,200	$ 857,300	$ 985,300	$ 924,300	$ 925,000	$ 893,500	$ 3,541,060	$ 3,728,134	$ 3,939,697
FPD
Disaggregation of Revenue [Line Items]
Sales									2,468,098	2,673,705	2,704,445
FCD
Disaggregation of Revenue [Line Items]
Sales									1,072,962	1,054,429	1,235,252
Original Equipment
Disaggregation of Revenue [Line Items]
Sales									1,704,263	1,900,491	1,961,990
Original Equipment | FPD
Disaggregation of Revenue [Line Items]
Sales									899,519	1,091,906	994,719
Original Equipment | FCD
Disaggregation of Revenue [Line Items]
Sales									804,744	808,585	967,271
Aftermarket
Disaggregation of Revenue [Line Items]
Sales									1,836,797	1,827,643	1,977,707
Aftermarket | FPD
Disaggregation of Revenue [Line Items]
Sales									1,568,579	1,581,799	1,709,726
Aftermarket | FCD
Disaggregation of Revenue [Line Items]
Sales									268,218	245,844	267,981
North America
Disaggregation of Revenue [Line Items]
Sales									1,345,049	1,468,857	1,627,809
North America | FPD
Disaggregation of Revenue [Line Items]
Sales									955,283	1,039,285	1,085,627
North America | FCD
Disaggregation of Revenue [Line Items]
Sales									389,766	429,572	542,182
Latin America
Disaggregation of Revenue [Line Items]
Sales									241,704	217,910	231,146
Latin America | FPD
Disaggregation of Revenue [Line Items]
Sales									211,150	191,517	202,247
Latin America | FCD
Disaggregation of Revenue [Line Items]
Sales									30,554	26,393	28,899
Middle East and Africa
Disaggregation of Revenue [Line Items]
Sales									418,694	469,942	454,896
Middle East and Africa | FPD
Disaggregation of Revenue [Line Items]
Sales									311,161	359,403	355,937
Middle East and Africa | FCD
Disaggregation of Revenue [Line Items]
Sales									107,533	110,539	98,959
Asia Pacific
Disaggregation of Revenue [Line Items]
Sales									816,109	808,030	815,818
Asia Pacific | FPD
Disaggregation of Revenue [Line Items]
Sales									482,596	537,792	499,932
Asia Pacific | FCD
Disaggregation of Revenue [Line Items]
Sales									333,513	270,238	315,886
Europe
Disaggregation of Revenue [Line Items]
Sales									719,504	763,395	810,028
Europe | FPD
Disaggregation of Revenue [Line Items]
Sales									507,908	545,708	560,702
Europe | FCD
Disaggregation of Revenue [Line Items]
Sales									$ 211,596	$ 217,687	$ 249,326