Condensed Consolidated Statements of Income - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Sales	$ 1,174,434,000	$ 1,133,087,000	$ 3,507,069,000	$ 3,377,458,000
Cost of sales	(794,148,000)	(776,020,000)	(2,350,867,000)	(2,315,326,000)
Gross profit	380,286,000	357,067,000	1,156,202,000	1,062,132,000
Selling, general and administrative expense	(305,152,000)	(259,025,000)	(814,237,000)	(726,070,000)
Loss on sale of business			0	(12,981,000)
Net earnings from affiliates	4,138,000	5,150,000	15,786,000	14,494,000
Operating income	79,272,000	103,192,000	357,751,000	337,575,000
Interest expense	(18,738,000)	(16,587,000)	(58,166,000)	(48,820,000)
Interest income	792,000	1,403,000	5,063,000	3,746,000
Other income (expense), net	256,220,000	(5,920,000)	213,958,000	(12,057,000)
Earnings before income taxes	317,546,000	82,088,000	518,606,000	280,444,000
Provision for income taxes	(93,688,000)	(18,739,000)	(127,067,000)	(62,728,000)
Net earnings, including noncontrolling interests	223,858,000	63,349,000	391,539,000	217,716,000
Less: net earnings attributable to noncontrolling interests	(4,276,000)	(4,967,000)	(16,298,000)	(12,498,000)
Net earnings attributable to Flowserve Corporation	$ 219,582,000	$ 58,382,000	$ 375,241,000	$ 205,218,000
Net earnings per share attributable to Flowserve Corporation common shareholders:
Basic (in dollars per share)	$ 1.69	$ 0.44	$ 2.87	$ 1.56
Diluted (in dollars per share)	$ 1.67	$ 0.44	$ 2.85	$ 1.55
Weighted average shares - basic (in shares)	130,315,000	131,395,000	130,910,000	131,520,000
Weighted average shares - diluted (in shares)	131,235,000	132,247,000	131,836,000	132,343,000
Allowance for doubtful accounts	$ 89,606,000	$ 80,757,000	$ 89,606,000	$ 80,757,000
Contract asset, allowance for doubtful accounts	4,915,000	$ 4,808,000	4,915,000	$ 4,808,000
Accumulated depreciation on property, plant and equipment	1,219,158		1,219,158
Other assets, allowance for credit loss	$ 66,152,000		$ 66,152,000
Treasury shares (in shares)	48,817		48,817
Common shares, par value (in dollars per share)	$ 1.25		$ 1.25
Common shares, shares authorized (in shares)	305,000		305,000
Common shares, shares issued (in shares)	176,793		176,793