Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Summarized financial information of the reportable segments
Sales	$ 890,051	$ 919,954
Segment operating income (loss)	91,231	45,425
Operating Segments
Summarized financial information of the reportable segments
Sales	890,051	919,954
Segment operating income (loss)	124,884	68,594
Intersegment sales
Summarized financial information of the reportable segments
Sales	(1,478)	(1,728)
Segment operating income (loss)	(33,653)	(23,169)
FPD
Summarized financial information of the reportable segments
Sales	608,759	644,040
FPD | Operating Segments
Summarized financial information of the reportable segments
Sales	608,759	644,040
Segment operating income (loss)	80,463	34,705
FPD | Intersegment sales
Summarized financial information of the reportable segments
Sales	650	409
FCD
Summarized financial information of the reportable segments
Sales	281,292	275,914
FCD | Operating Segments
Summarized financial information of the reportable segments
Sales	281,292	275,914
Segment operating income (loss)	44,421	33,889
FCD | Intersegment sales
Summarized financial information of the reportable segments
Sales	828	1,319
Flowserve Pump Division and Flowserve Control Division | Intersegment sales
Summarized financial information of the reportable segments
Sales	$ 1,478	$ 1,728