Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Sales	$ 898,178	$ 925,012	$ 1,755,486	$ 1,818,526
Cost of sales	(619,940)	(655,305)	(1,226,348)	(1,282,360)
Gross profit	278,238	269,707	529,138	536,166
Selling, general and administrative expense	(210,789)	(229,343)	(409,104)	(474,794)
Gain on sale of business	1,806	0	1,806	0
Net earnings from affiliates	2,907	3,088	6,425	6,283
Operating income	72,162	43,452	128,265	67,655
Interest expense	(14,322)	(12,935)	(31,101)	(25,898)
Loss on extinguishment of debt			(7,610)	0
Interest income	465	1,149	1,067	2,898
Other income (expense), net	(7,850)	(18,907)	(19,213)	19,295
Earnings before income taxes	50,455	12,759	71,408	63,950
Provision for income taxes	(2,711)	(4,485)	(6,503)	(41,453)
Net earnings, including noncontrolling interests	47,744	8,274	64,905	22,497
Less: Net earnings attributable to noncontrolling interests	(2,390)	(2,142)	(5,471)	(4,243)
Net earnings attributable to Flowserve Corporation	$ 45,354	$ 6,132	$ 59,434	$ 18,254
Net earnings per share attributable to Flowserve Corporation common shareholders:
Basic (in dollars per share)	$ 0.35	$ 0.05	$ 0.46	$ 0.14
Diluted (in dollars per share)	$ 0.35	$ 0.05	$ 0.45	$ 0.14