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Segment Information - Additional Information (Detail) - Customer | 3 Months Ended
--- | ---
Mar. 30, 2024 | Apr. 01, 2023
Segment Reporting Information [Line Items] |  |
Number of customers accounting for 10 percent or more of total revenue | 0 | 0
No single customer accounted for benchmark percentage to be considered major customer | 10.00% | 10.00%

X
- Definition Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues. + References No definition available. + Details
Name: | lstr_EntityWideRevenueNoMajorCustomerAccountedForBenchmarkPercentage
Namespace Prefix: | lstr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of customers accounting for 10 percent or more of revenue. + References No definition available. + Details
Name: | lstr_NumberOfCustomersAccountingFor10PercentOrMoreOfRevenue
Namespace Prefix: | lstr_
Data Type: | xbrli:integerItemType
Balance Type: | na
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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration