XML 93 R74.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Goodwill and Other Intangible Assets (Changes in Intangible Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2012
--- | --- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Ending Gross Amount | $ 344,010 | $ 291,443 |
Finite-lived intangible assets, Accumulated Amortization | (252,454) | (249,318) |
Indefinite-lived intangible assets, Ending Gross Amount | 98,721 | 81,824 |
Indefinite-lived intangible assets, Accumulated Amortization | $ (1,673) | (1,701) |
Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 1 year |  |
Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 40 years |  |
Engineering drawings |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Ending Gross Amount | $ 89,529 | 92,105 |
Finite-lived intangible assets, Accumulated Amortization | $ (89,529) | (91,808) |
Engineering drawings | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 10 years |  |
Engineering drawings | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 22 years |  |
Existing customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) |  |  | 5 years
Finite-lived intangible assets, Ending Gross Amount | $ 126,761 | 80,643 |
Finite-lived intangible assets, Accumulated Amortization | $ (79,039) | (76,121) |
Existing customer relationships | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 5 years |  |
Existing customer relationships | Minimum | MOGAS |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 5 years |  |
Existing customer relationships | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 10 years |  |
Existing customer relationships | Maximum | MOGAS |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 10 years |  |
Patents |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Ending Gross Amount | $ 25,086 | 26,388 |
Finite-lived intangible assets, Accumulated Amortization | $ (25,086) | (26,388) |
Patents | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 9 years |  |
Patents | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 16 years |  |
Other |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, Ending Gross Amount | $ 102,634 | 92,307 |
Finite-lived intangible assets, Accumulated Amortization | $ (58,800) | $ (55,001) |
Other | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 1 year |  |
Other | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful Life (Years) | 40 years |  |

X
- Definition Indefinite-lived intangible assets, accumulated amortization + References No definition available. + Details
Name: | fls_IndefiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | fls_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480265/350-10-S45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480265/350-10-S45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 928 -SubTopic 340 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478859/928-340-50-1 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-3 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 985 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481283/985-20-50-2 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 926 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483154/926-20-50-5 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480265/350-10-S45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 + Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=fls_EngineeringDrawingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=fls_MOGASMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OtherIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |