XML 58 R48.htm IDEA: XBRL DOCUMENT
v3.24.2

Acquisitions - Pro Forma Information Adjustments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 01, 2023 | Jul. 01, 2023
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment |  |
Net income | $ 70,098 | $ 160,339
Amortization |  |
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment |  |
Net income | 0 | (479)
Transaction costs |  |
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment |  |
Net income | 30 | 1,427
Income tax expense of above items |  |
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment |  |
Net income | $ (3) | $ (118)

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_BusinessAcquisitionProFormaInformationNonrecurringAdjustmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479328/805-10-50-2 + Details
Name: | us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_NonrecurringAdjustmentAxis=lfus_AdjustmentToAmortizationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NonrecurringAdjustmentAxis=us-gaap_AcquisitionRelatedCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NonrecurringAdjustmentAxis=lfus_AdjustmentToIncomeTaxMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |