Condensed Consolidated Statements of Income - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Sales	$ 1,188,092,000	$ 1,156,892,000	$ 2,332,635,000	$ 2,244,371,000
Cost of sales	(781,510,000)	(790,796,000)	(1,556,719,000)	(1,539,307,000)
Gross profit	406,582,000	366,096,000	775,916,000	705,064,000
Selling, general and administrative expense	(265,908,000)	(238,627,000)	(509,085,000)	(467,045,000)
Loss on sale of business	0	(12,981,000)	0	(12,981,000)
Net earnings from affiliates	5,916,000	6,816,000	11,648,000	9,344,000
Operating income	146,590,000	121,304,000	278,479,000	234,382,000
Interest expense	(20,253,000)	(16,917,000)	(39,428,000)	(32,233,000)
Interest income	2,526,000	1,174,000	4,271,000	2,343,000
Other expense, net	(25,003,000)	(5,263,000)	(42,262,000)	(6,137,000)
Earnings before income taxes	103,860,000	100,298,000	201,060,000	198,355,000
Provision for income taxes	(15,636,000)	(23,846,000)	(33,379,000)	(43,988,000)
Net earnings, including noncontrolling interests	88,224,000	76,452,000	167,681,000	154,367,000
Less: net earnings attributable to noncontrolling interests	(6,470,000)	(3,836,000)	(12,022,000)	(7,531,000)
Net earnings attributable to Flowserve Corporation	$ 81,754,000	$ 72,616,000	$ 155,659,000	$ 146,836,000
Net earnings per share attributable to Flowserve Corporation common shareholders:
Basic (in dollars per share)	$ 0.62	$ 0.55	$ 1.19	$ 1.12
Diluted (in dollars per share)	$ 0.62	$ 0.55	$ 1.18	$ 1.11
Weighted average shares - basic (in shares)	130,846,000	131,656,000	131,206,000	131,583,000
Weighted average shares - diluted (in shares)	131,599,000	132,415,000	132,135,000	132,392,000
Allowance for doubtful accounts	$ 91,911,000	$ 80,591,000	$ 91,911,000	$ 80,591,000
Contract asset, allowance for doubtful accounts	4,577,000	$ 4,815,000	4,577,000	$ 4,815,000
Accumulated depreciation on property, plant and equipment	1,223,841		1,223,841
Other assets, allowance for credit loss	$ 65,830,000		$ 65,830,000
Treasury shares (in shares)	46,233		46,233
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