Revision to Previously Reported Financial Information (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retirement obligations and other liabilities	$ 352,062	$ 517,566
Retained earnings	3,691,023	3,670,543
Total Flowserve Corporation shareholders’ equity	1,804,319	1,730,991
Total equity	$ 1,837,345	1,761,321	$ 1,772,341	$ 1,632,003
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retirement obligations and other liabilities		516,087
Retained earnings		3,656,449
Total Flowserve Corporation shareholders’ equity		1,732,470
Total equity		1,762,800
Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retirement obligations and other liabilities		1,479
Retained earnings		14,094
Total Flowserve Corporation shareholders’ equity		(1,479)
Total equity		$ (1,479)