XML 77 R63.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Realignment Programs (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 24 Months Ended
--- | --- | --- | ---
May 01, 2023 | Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | $ 7,167 |  |
Restructuring Charges |  | 5,130 | $ 7,959 |
Non-Restructuring Charges |  | 2,037 | 8,920 |
Total Realignment Program Charges |  |  | 16,879 |
Restructuring Reserve [Roll Forward] |  |  |  |
Beginning Balance | $ 1,038 | 8,184 | 965 |
Charges, net of adjustments |  | 5,130 | 7,959 |
Cash expenditures |  | (387) | (234) |
Other non-cash adjustments, including currency |  | (849) | (55) |
Ending Balance |  | 12,078 | 1,038 |
Subtotal–Reportable Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 6,966 |  |
Restructuring Charges |  | 5,130 | 7,893 |
Non-Restructuring Charges |  | 1,836 | 3,464 |
Total Realignment Program Charges |  |  | 11,357 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 5,130 | 7,893 |
Eliminations and All Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 201 |  |
Restructuring Charges |  | 0 | 66 |
Non-Restructuring Charges |  | 201 | 5,456 |
Total Realignment Program Charges |  |  | 5,522 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 0 | 66 |
Severance |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 4,686 | 191 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 4,686 | 191 |
Contract Termination |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 0 | 66 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 0 | 66 |
Asset Write-Downs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 0 | 7,597 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 0 | 7,597 |
Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 444 | 105 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 444 | 105 |
Charges Expected to be Settled in Cash |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 5,130 | 362 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 5,130 | 362 |
COS |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 5,673 |  |
Restructuring Charges |  | 4,429 | (946) |
Non-Restructuring Charges |  | 1,244 | 1,148 |
Total Realignment Program Charges |  |  | 202 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 4,429 | (946) |
COS | Subtotal–Reportable Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 5,811 |  |
Restructuring Charges |  | 4,429 | (1,012) |
Non-Restructuring Charges |  | 1,382 | 1,413 |
Total Realignment Program Charges |  |  | 401 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 4,429 | (1,012) |
COS | Eliminations and All Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | (138) |  |
Restructuring Charges |  | 0 | 66 |
Non-Restructuring Charges |  | (138) | (265) |
Total Realignment Program Charges |  |  | (199) |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 0 | 66 |
COS | Severance |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 3,985 | 186 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 3,985 | 186 |
COS | Contract Termination |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 0 | 66 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 0 | 66 |
COS | Asset Write-Downs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 0 | (1,303) |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 0 | (1,303) |
COS | Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 444 | 105 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 444 | 105 |
SG&A |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 1,494 |  |
Restructuring Charges |  | 701 | 8,905 |
Non-Restructuring Charges |  | 793 | 7,772 |
Total Realignment Program Charges |  |  | 16,677 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 701 | 8,905 |
SG&A | Subtotal–Reportable Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 1,155 |  |
Restructuring Charges |  | 701 | 8,905 |
Non-Restructuring Charges |  | 454 | 2,051 |
Total Realignment Program Charges |  |  | 10,956 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 701 | 8,905 |
SG&A | Eliminations and All Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 339 |  |
Restructuring Charges |  | 0 | 0 |
Non-Restructuring Charges |  | 339 | 5,721 |
Total Realignment Program Charges |  |  | 5,721 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 0 | 0 |
SG&A | Severance |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 701 | 5 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 701 | 5 |
SG&A | Contract Termination |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 0 | 0 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 0 | 0 |
SG&A | Asset Write-Downs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 0 | 8,900 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 0 | 8,900 |
SG&A | Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  | 0 | 0 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 0 | 0 |
FPD |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 6,085 |  |
Restructuring Charges |  | 5,115 | (1,012) |
Non-Restructuring Charges |  | 970 | 3,452 |
Total Realignment Program Charges |  |  | 2,440 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 5,115 | (1,012) |
FPD | COS |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 5,044 |  |
Restructuring Charges |  | 4,414 | (1,012) |
Non-Restructuring Charges |  | 630 | 1,402 |
Total Realignment Program Charges |  |  | 390 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 4,414 | (1,012) |
FPD | SG&A |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 1,041 |  |
Restructuring Charges |  | 701 | 0 |
Non-Restructuring Charges |  | 340 | 2,050 |
Total Realignment Program Charges |  |  | 2,050 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 701 | 0 |
FCD |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 881 |  |
Restructuring Charges |  | 15 | 8,905 |
Non-Restructuring Charges |  | 866 | 12 |
Total Realignment Program Charges |  |  | 8,917 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 15 | 8,905 |
FCD | COS |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 767 |  |
Restructuring Charges |  | 15 | 0 |
Non-Restructuring Charges |  | 752 | 11 |
Total Realignment Program Charges |  |  | 11 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | 15 | 0 |
FCD | SG&A |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  | 114 |  |
Restructuring Charges |  | 0 | 8,905 |
Non-Restructuring Charges |  | 114 | 1 |
Total Realignment Program Charges |  |  | 8,906 |
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  | $ 0 | $ 8,905 |
2020 Realignment Program |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | $ 73,204
Restructuring Charges |  |  |  | 24,390
Non-Restructuring Charges |  |  |  | 48,814
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 24,390
2020 Realignment Program | Subtotal–Reportable Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 54,265
Restructuring Charges |  |  |  | 24,324
Non-Restructuring Charges |  |  |  | 29,941
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 24,324
2020 Realignment Program | Eliminations and All Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 18,939
Restructuring Charges |  |  |  | 66
Non-Restructuring Charges |  |  |  | 18,873
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 66
2020 Realignment Program | Severance |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 12,721
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 12,721
2020 Realignment Program | Contract Termination |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 301
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 301
2020 Realignment Program | Asset Write-Downs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 9,665
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 9,665
2020 Realignment Program | Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 1,703
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 1,703
2020 Realignment Program | COS |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 26,685
Restructuring Charges |  |  |  | 13,862
Non-Restructuring Charges |  |  |  | 12,823
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 13,862
2020 Realignment Program | COS | Subtotal–Reportable Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 27,184
Restructuring Charges |  |  |  | 13,796
Non-Restructuring Charges |  |  |  | 13,388
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 13,796
2020 Realignment Program | COS | Eliminations and All Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | (499)
Restructuring Charges |  |  |  | 66
Non-Restructuring Charges |  |  |  | (565)
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 66
2020 Realignment Program | COS | Severance |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 11,070
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 11,070
2020 Realignment Program | COS | Contract Termination |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 301
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 301
2020 Realignment Program | COS | Asset Write-Downs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 794
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 794
2020 Realignment Program | COS | Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 1,697
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 1,697
2020 Realignment Program | SG&A |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 46,519
Restructuring Charges |  |  |  | 10,528
Non-Restructuring Charges |  |  |  | 35,991
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 10,528
2020 Realignment Program | SG&A | Subtotal–Reportable Segments |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 27,081
Restructuring Charges |  |  |  | 10,528
Non-Restructuring Charges |  |  |  | 16,553
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 10,528
2020 Realignment Program | SG&A | Eliminations and All Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 19,438
Restructuring Charges |  |  |  | 0
Non-Restructuring Charges |  |  |  | 19,438
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 0
2020 Realignment Program | SG&A | Severance |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 1,651
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 1,651
2020 Realignment Program | SG&A | Contract Termination |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 0
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 0
2020 Realignment Program | SG&A | Asset Write-Downs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 8,871
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 8,871
2020 Realignment Program | SG&A | Other |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring Charges |  |  |  | 6
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 6
2020 Realignment Program | FPD |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 31,415
Restructuring Charges |  |  |  | 8,127
Non-Restructuring Charges |  |  |  | 23,288
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 8,127
2020 Realignment Program | FPD | COS |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 15,841
Restructuring Charges |  |  |  | 7,376
Non-Restructuring Charges |  |  |  | 8,465
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 7,376
2020 Realignment Program | FPD | SG&A |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 15,574
Restructuring Charges |  |  |  | 751
Non-Restructuring Charges |  |  |  | 14,823
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 751
2020 Realignment Program | FCD |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 22,850
Restructuring Charges |  |  |  | 16,197
Non-Restructuring Charges |  |  |  | 6,653
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 16,197
2020 Realignment Program | FCD | COS |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 11,343
Restructuring Charges |  |  |  | 6,420
Non-Restructuring Charges |  |  |  | 4,923
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | 6,420
2020 Realignment Program | FCD | SG&A |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total Realignment Charges |  |  |  | 11,507
Restructuring Charges |  |  |  | 9,777
Non-Restructuring Charges |  |  |  | 1,730
Restructuring Reserve [Roll Forward] |  |  |  |
Charges, net of adjustments |  |  |  | $ 9,777
2023 Realignment Program |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Cost reduction amount | 50,000 |  |  |
Total Realignment Charges | 100,000 |  |  |
Non-cash realignment | $ 18,000 |  |  |

X
- Definition Cost Reduction Amount + References No definition available. + Details
Name: | fls_CostReductionAmount
Namespace Prefix: | fls_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Non-Restructuring Charges (Benefits) + References No definition available. + Details
Name: | fls_NonRestructuringChargesBenefits
Namespace Prefix: | fls_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Realignment and Transformation Program Charges (Benefits) Non-Cash + References No definition available. + Details
Name: | fls_RealignmentAndTransformationProgramChargesBenefitsNonCash
Namespace Prefix: | fls_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Realignment Program Charges (Benefits) + References No definition available. + Details
Name: | fls_RealignmentProgramChargesBenefits
Namespace Prefix: | fls_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Realignment and Transformation Program Charges (Benefits) + References No definition available. + Details
Name: | fls_RealignmentandTransformationProgramChargesBenefits
Namespace Prefix: | fls_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 17 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-17 + Details
Name: | us-gaap_PaymentsForRestructuring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482047/420-10-45-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-1 + Details
Name: | us-gaap_RestructuringCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 + Details
Name: | us-gaap_RestructuringCostAndReserveLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 + Details
Name: | us-gaap_RestructuringReserve
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_RestructuringReserveRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase (decrease) in the restructuring reserve related to foreign currency translation (gain) loss and other increases (decreases). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 + Details
Name: | us-gaap_RestructuringReserveTranslationAndOtherAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=us-gaap_EmployeeSeveranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=us-gaap_ContractTerminationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=fls_AssetWriteDownsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=us-gaap_OtherExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=fls_ChargesExpectedtobeSettledinCashMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=fls_FPDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=fls_FlowControlDivisionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringPlanAxis=fls_RealignmentPrograms2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringPlanAxis=fls_A2023RealignmentProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |