XML 52 R42.htm IDEA: XBRL DOCUMENT
v3.21.1

Fair Value Measurements (Narrative) (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
May 31, 2020 | Feb. 28, 2021 | Feb. 29, 2020
Percentage of marketable securities investments mature within one year |  | 65.00% |
Percentage of marketable securities investments mature within one to three years |  | 35.00% |
Fair Value, Measurements, Nonrecurring [Member] |  |  |
Assets fair value adjustments |  | $ 0 | $ 0
Liabilities fair value adjustments |  | $ 0 | $ 0
Net Irrigate, LLC [Member] |  |  |
Earn-out liability payment period | 1 year |  |
Maximum potential payout | $ 1,500,000 |  |

X
- Definition Business combination contingent consideration maximum potential earnout payment. + References No definition available. + Details
Name: | lnn_BusinessCombinationContingentConsiderationMaximumPotentialEarnoutPayment
Namespace Prefix: | lnn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Business combination earn-out liability payment period. + References No definition available. + Details
Name: | lnn_BusinessCombinationEarnOutLiabilityPaymentPeriod
Namespace Prefix: | lnn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of marketable securities investments mature within one to three years. + References No definition available. + Details
Name: | lnn_PercentageOfMarketableSecuritiesInvestmentsMatureWithinOneToThreeYears
Namespace Prefix: | lnn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of marketable securities investments mature within one year. + References No definition available. + Details
Name: | lnn_PercentageOfMarketableSecuritiesInvestmentsMatureWithinOneYear
Namespace Prefix: | lnn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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