Represents the number of customers on whom the entity significantly rely giving rise to concentration risk.

No definition available.

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- Definition

Concentration Risk, Threshold Percentage

+ References

No definition available.

+ Details

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- Definition

Represents the amount of dealer commission, reimbursed dealer expenses and other similar costs.

+ References

No definition available.

+ Details

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- Definition

Number of housing contracts with a customer during the reporting period.

+ References

No definition available.

+ Details

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- Definition

Number of housing contracts completed through delivery or shipment during the reporting period.

+ References

No definition available.

+ Details

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Balance Type:	na
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Number of housing units ordered by the customer during the reporting period.

+ References

No definition available.

+ Details

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Number of housing units shipped during the reporting period.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
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Number of housing units shipped and delivered during the reporting period.

+ References

No definition available.

+ Details

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Namespace Prefix:	legh_
Data Type:	xbrli:integerItemType
Balance Type:	na
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- Definition

Amount of revenue recognized from sale of land.

+ References

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Amount of combined cost related to warranty and contract costs.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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/disclosureRef
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Data Type:	xbrli:stringItemType
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- Definition

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 924
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Indicates (true false) whether practical expedient was elected to recognize incremental cost of obtaining contract as expense when incurred if amortization period would have been one year or less.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
-Section 50
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Name:	srt_RangeAxis=srt_MaximumMember
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- Details

Name:	srt_MajorCustomersAxis=legh_ManufacturedHomesForWorkforceHousingMember
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- Details

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REVENUE - Narrative (Details) $ in Thousands	3 Months Ended			6 Months Ended
REVENUE - Narrative (Details) $ in Thousands	Jun. 30, 2026 USD ($) item customer contract	Mar. 31, 2026 USD ($) item	Jun. 30, 2025 USD ($) customer	Jun. 30, 2026 USD ($) customer	Jun. 30, 2025 USD ($) customer	Dec. 31, 2025 USD ($)
Disaggregation of revenue
Incremental costs of obtaining a contract				true
Dealer commission, reimbursed dealer expenses and other similar costs	$ 3,000		$ 2,500	$ 4,700	$ 4,200
Revenue from land sales	300		100	1,400	100
Customer deposits	12,472			12,472		$ 1,764
Product sales	53,760		38,387	75,310	62,677
Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense
Disaggregation of revenue
Warranty and contract costs	$ 600		$ 500	$ 1,100	$ 1,000
Minimum
Disaggregation of revenue
Term of lease agreement	96 months			96 months
Maximum
Disaggregation of revenue
Term of lease agreement	120 months			120 months
Manufactured Homes intended for Workforce Customer
Disaggregation of revenue
Customer deposits		$ 7,100
Number of housing units ordered \| item		380
Number of housing units shipped and delivered \| item	113
Revenue from contract with customer product and service benchmark \| Customer concentration risk
Disaggregation of revenue
Number of customers \| customer			0		0
Concentration Risk, Threshold Percentage			5.00%		5.00%
Concentration risk percentage	100.00%		100.00%	100.00%	100.00%
Revenue from contract with customer product and service benchmark \| Customer concentration risk \| Mobile home park customer
Disaggregation of revenue
Number of customers \| customer	2			2
Concentration risk percentage	41.60%			29.70%
Workforce housing sales
Disaggregation of revenue
Product sales	$ 25,510		$ 1,061	$ 27,217	$ 1,172
Number of housing units shipped \| item	136
Number of housing contracts \| contract	5
Number of housing contracts completed \| contract	5
Workforce housing sales \| Revenue from contract with customer product and service benchmark \| Customer concentration risk
Disaggregation of revenue
Concentration risk percentage	38.40%		2.10%	27.00%	1.40%