Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Summarized financial information of the reportable segments
Sales	$ 894,457	$ 890,051
Segment operating income	25,552	91,231
Operating Segments
Summarized financial information of the reportable segments
Sales	894,457	890,051
Segment operating income	56,424	124,884
Intersegment sales
Summarized financial information of the reportable segments
Sales	(1,525)	(1,478)
Segment operating income	(30,872)	(33,653)
FPD
Summarized financial information of the reportable segments
Sales	635,126	608,759
FPD | Operating Segments
Summarized financial information of the reportable segments
Sales	635,126	608,759
Segment operating income	39,725	80,463
FPD | Intersegment sales
Summarized financial information of the reportable segments
Sales	528	650
FCD
Summarized financial information of the reportable segments
Sales	259,331	281,292
FCD | Operating Segments
Summarized financial information of the reportable segments
Sales	259,331	281,292
Segment operating income	16,699	44,421
FCD | Intersegment sales
Summarized financial information of the reportable segments
Sales	997	828
Flowserve Pump Division and Flowserve Control Division | Intersegment sales
Summarized financial information of the reportable segments
Sales	$ 1,525	$ 1,478