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Realignment Programs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		63 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 11,633	$ 530	$ 13,286	$ (14,523)
Non-Restructuring Charges	46,850	5,771	55,937	8,894
Total Realignment Program Charges	58,483	6,301	69,223	(5,629)
Transformation Charges	5,618	7,573	11,261	15,986
Total Realignment and Transformation Charges	64,101	13,874	80,484	10,357
Restructuring Reserve [Roll Forward]
Beginning Balance			6,703	11,927
Charges, net of adjustments	11,633	530	13,286	(14,523)
Cash expenditures			(2,713)	(4,733)
Other non-cash adjustments, including currency			(118)	(205)
Ending Balance	16,142	11,785	16,142	11,785
Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	10,698	1,450	12,520	3,445
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	10,698	1,450	12,520	3,445
Contract Termination
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	9	0	48
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0	9	0	48
Asset Write-Downs
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,018	(1,051)	991	(19,320)
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	1,018	(1,051)	991	(19,320)
Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(83)	122	(225)	1,304
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	(83)	122	(225)	1,304
Charges Expected to be Settled in Cash
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			12,270	4,796
Restructuring Reserve [Roll Forward]
Charges, net of adjustments			12,270	4,796
Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11,483	(905)	13,059	2,174
Non-Restructuring Charges	18,370	4,769	26,255	7,190
Total Realignment Program Charges	29,853	3,864	39,314	9,364
Total Realignment and Transformation Charges	29,853	3,864	39,314	9,364
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,483	(905)	13,059	2,174
Cost of Sales | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	10,572	148	12,255	1,827
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	10,572	148	12,255	1,827
Cost of Sales | Contract Termination
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	9	0	48
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0	9	0	48
Cost of Sales | Asset Write-Downs
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	994	(1,051)	991	(818)
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	994	(1,051)	991	(818)
Cost of Sales | Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(83)	(11)	(187)	1,117
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	(83)	(11)	(187)	1,117
Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	150	1,435	227	(16,697)
Non-Restructuring Charges	28,480	1,002	29,682	1,704
Total Realignment Program Charges	28,630	2,437	29,909	(14,993)
Transformation Charges	5,618	7,573	11,261	15,986
Total Realignment and Transformation Charges	34,248	10,010	41,170	993
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	150	1,435	227	(16,697)
Selling, General and Administrative Expenses | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	126	1,302	265	1,618
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	126	1,302	265	1,618
Selling, General and Administrative Expenses | Contract Termination
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	0		0
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0	0		0
Selling, General and Administrative Expenses | Asset Write-Downs
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	24	0	0	(18,502)
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	24	0	0	(18,502)
Selling, General and Administrative Expenses | Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	133	(38)	187
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0	133	(38)	187
FPD
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11,776	417	13,561	(15,431)
Non-Restructuring Charges	21,319	4,981	21,929	7,549
Total Realignment Program Charges	33,095	5,398	35,490	(7,882)
Total Realignment and Transformation Charges	33,095	5,398	35,490	(7,882)
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,776	417	13,561	(15,431)
FPD | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11,650	(928)	13,331	1,695
Non-Restructuring Charges	12,003	4,727	12,128	7,122
Total Realignment Program Charges	23,653	3,799	25,459	8,817
Total Realignment and Transformation Charges	23,653	3,799	25,459	8,817
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,650	(928)	13,331	1,695
FPD | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	126	1,345	230	(17,126)
Non-Restructuring Charges	9,316	254	9,801	427
Total Realignment Program Charges	9,442	1,599	10,031	(16,699)
Total Realignment and Transformation Charges	9,442	1,599	10,031	(16,699)
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	126	1,345	230	(17,126)
FCD
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(143)	113	(275)	892
Non-Restructuring Charges	10,131	77	17,963	102
Total Realignment Program Charges	9,988	190	17,688	994
Total Realignment and Transformation Charges	9,988	190	17,688	994
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	(143)	113	(275)	892
FCD | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(167)	23	(272)	479
Non-Restructuring Charges	5,819	42	13,579	68
Total Realignment Program Charges	5,652	65	13,307	547
Total Realignment and Transformation Charges	5,652	65	13,307	547
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	(167)	23	(272)	479
FCD | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	24	90	(3)	413
Non-Restructuring Charges	4,312	35	4,384	34
Total Realignment Program Charges	4,336	125	4,381	447
Total Realignment and Transformation Charges	4,336	125	4,381	447
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	24	90	(3)	413
Subtotal–Reportable Segments
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11,633	530	13,286	(14,539)
Non-Restructuring Charges	31,450	5,058	39,892	7,651
Total Realignment Program Charges	43,083	5,588	53,178	(6,888)
Total Realignment and Transformation Charges	43,083	5,588	53,178	(6,888)
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,633	530	13,286	(14,539)
Subtotal–Reportable Segments | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11,483	(905)	13,059	2,174
Non-Restructuring Charges	17,822	4,769	25,707	7,190
Total Realignment Program Charges	29,305	3,864	38,766	9,364
Total Realignment and Transformation Charges	29,305	3,864	38,766	9,364
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,483	(905)	13,059	2,174
Subtotal–Reportable Segments | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	150	1,435	227	(16,713)
Non-Restructuring Charges	13,628	289	14,185	461
Total Realignment Program Charges	13,778	1,724	14,412	(16,252)
Total Realignment and Transformation Charges	13,778	1,724	14,412	(16,252)
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	150	1,435	227	(16,713)
Eliminations and All Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	0	0	16
Non-Restructuring Charges	15,400	713	16,045	1,243
Total Realignment Program Charges	15,400	713	16,045	1,259
Transformation Charges	5,618	7,573	11,261	15,986
Total Realignment and Transformation Charges	21,018	8,286	27,306	17,245
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0	0	0	16
Eliminations and All Other | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	0	0	0
Non-Restructuring Charges	548	0	548	0
Total Realignment Program Charges	548	0	548	0
Total Realignment and Transformation Charges	548	0	548	0
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0	0	0	0
Eliminations and All Other | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	0	0	16
Non-Restructuring Charges	14,852	713	15,497	1,243
Total Realignment Program Charges	14,852	713	15,497	1,259
Transformation Charges	5,618	7,573	11,261	15,986
Total Realignment and Transformation Charges	20,470	8,286	26,758	17,245
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0	$ 0	0	$ 16
Flowserve 2.0 Transformation
Restructuring Cost and Reserve [Line Items]
Expected cost	65,000		$ 65,000
Restructuring Charges	11,633
Non-Restructuring Charges	46,850
Total Realignment and Transformation Charges	58,483
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,633
Flowserve 2.0 Transformation | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	10,698
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	10,698
Flowserve 2.0 Transformation | Contract Termination
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0
Flowserve 2.0 Transformation | Asset Write-Downs
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,018
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	1,018
Flowserve 2.0 Transformation | Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(83)
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	(83)
Flowserve 2.0 Transformation | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11,483
Non-Restructuring Charges	18,370
Total Realignment and Transformation Charges	29,853
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,483
Flowserve 2.0 Transformation | Cost of Sales | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	10,572
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	10,572
Flowserve 2.0 Transformation | Cost of Sales | Contract Termination
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0
Flowserve 2.0 Transformation | Cost of Sales | Asset Write-Downs
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	994
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	994
Flowserve 2.0 Transformation | Cost of Sales | Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(83)
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	(83)
Flowserve 2.0 Transformation | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	150
Non-Restructuring Charges	28,480
Total Realignment and Transformation Charges	28,630
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	150
Flowserve 2.0 Transformation | Selling, General and Administrative Expenses | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	126
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	126
Flowserve 2.0 Transformation | Selling, General and Administrative Expenses | Contract Termination
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0
Flowserve 2.0 Transformation | Selling, General and Administrative Expenses | Asset Write-Downs
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	24
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	24
Flowserve 2.0 Transformation | Selling, General and Administrative Expenses | Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0
Flowserve 2.0 Transformation | FPD
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11,776
Non-Restructuring Charges	21,319
Total Realignment and Transformation Charges	33,095
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,776
Flowserve 2.0 Transformation | FPD | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11,650
Non-Restructuring Charges	12,003
Total Realignment and Transformation Charges	23,653
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,650
Flowserve 2.0 Transformation | FPD | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	126
Non-Restructuring Charges	9,316
Total Realignment and Transformation Charges	9,442
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	126
Flowserve 2.0 Transformation | FCD
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(143)
Non-Restructuring Charges	10,131
Total Realignment and Transformation Charges	9,988
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	(143)
Flowserve 2.0 Transformation | FCD | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	(167)
Non-Restructuring Charges	5,819
Total Realignment and Transformation Charges	5,652
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	(167)
Flowserve 2.0 Transformation | FCD | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	24
Non-Restructuring Charges	4,312
Total Realignment and Transformation Charges	4,336
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	24
Flowserve 2.0 Transformation | Subtotal–Reportable Segments
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11,633
Non-Restructuring Charges	31,450
Total Realignment and Transformation Charges	43,083
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,633
Flowserve 2.0 Transformation | Subtotal–Reportable Segments | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	11,483
Non-Restructuring Charges	17,822
Total Realignment and Transformation Charges	29,305
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	11,483
Flowserve 2.0 Transformation | Subtotal–Reportable Segments | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	150
Non-Restructuring Charges	13,628
Total Realignment and Transformation Charges	13,778
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	150
Flowserve 2.0 Transformation | Eliminations and All Other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0
Non-Restructuring Charges	15,400
Total Realignment and Transformation Charges	15,400
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0
Flowserve 2.0 Transformation | Eliminations and All Other | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0
Non-Restructuring Charges	548
Total Realignment and Transformation Charges	548
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	0
Flowserve 2.0 Transformation | Eliminations and All Other | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0
Non-Restructuring Charges	14,852
Total Realignment and Transformation Charges	14,852
Restructuring Reserve [Roll Forward]
Charges, net of adjustments	$ 0
Realignment Programs
Restructuring Cost and Reserve [Line Items]
Restructuring Charges					$ 362,400
Restructuring Reserve [Roll Forward]
Charges, net of adjustments					$ 362,400

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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