Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share [Abstract]
Net earnings of Flowserve Corporation	$ 282,759	$ 186,743	$ 188,689
Dividends on restricted shares not expected to vest	0	0	0
Earnings attributable to common and participating shareholders	$ 282,759	$ 186,743	$ 188,689
Weighted average shares:
Common stock (in shares)	131,450,000	131,074,000	130,591,000
Participating securities (in shares)	38,000	43,000	39,000
Denominator for basic earnings per common share (in shares)	131,488,000	131,117,000	130,630,000
Effect of potentially dilutive securities (in shares)	868,000	814,000	685,000
Denominator for diluted earnings per common share (in shares)	132,356,000	131,931,000	131,315,000
Earnings per common share:
Basic (in dollars per share)	$ 2.15	$ 1.42	$ 1.44
Diluted (in dollars per share)	$ 2.14	$ 1.42	$ 1.44
Antidilutive shares (in shares)	12,840	118,781	118,334
Litigation Settlement, Fee Expense	$ 22,700	$ 22,100	$ 14,800