XML 64 R55.htm IDEA: XBRL DOCUMENT
v3.23.1

Restructuring, Impairment and Other Charges (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Apr. 01, 2023 | Apr. 02, 2022 | Dec. 31, 2022
Restructuring Cost and Reserve |  |  |
Total restructuring charges | $ 1,850 | $ 218 |
Restructuring reserves | 1,200 |  | $ 2,400
Employee terminations |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | 1,571 | 205 |
Other restructuring charges |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | 279 | 13 |
Electronics |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | 679 | 205 |
Electronics | Employee terminations |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | 672 | 205 |
Electronics | Other restructuring charges |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | 7 | 0 |
Transportation |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | 854 | 13 |
Transportation | Employee terminations |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | 582 | 0 |
Transportation | Other restructuring charges |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | 272 | 13 |
Industrial |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | 317 | 0 |
Industrial | Employee terminations |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | 317 | 0 |
Industrial | Other restructuring charges |  |  |
Restructuring Cost and Reserve |  |  |
Total restructuring charges | $ 0 | $ 0 |

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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=109237686&loc=d3e17752-110868 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + 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 No definition available. + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
Name: | us-gaap_RestructuringReserve
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_OtherRestructuringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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