Number Of Acres Of Raw Land

No definition available.

Name:	arl_NumberOfAcresOfRawLand
Namespace Prefix:	arl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number Of Single Family Lots

+ References

No definition available.

+ Details

Name:	arl_NumberOfSingleFamilyLots
Namespace Prefix:	arl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Real Estate, Cost Incurred, Development Fees

+ References

No definition available.

+ Details

Name:	arl_RealEstateCostIncurredDevelopmentFees
Namespace Prefix:	arl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Real Estate, Development Agreement, Construction Related Fee

+ References

No definition available.

+ Details

Name:	arl_RealEstateDevelopmentAgreementConstructionRelatedFee
Namespace Prefix:	arl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Real Estate, Development Costs Incurred

+ References

No definition available.

+ Details

Name:	arl_RealEstateDevelopmentCostsIncurred
Namespace Prefix:	arl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Real Estate, Reimbursable Infrastructure Investments

+ References

No definition available.

+ Details

Name:	arl_RealEstateReimbursableInfrastructureInvestments
Namespace Prefix:	arl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

+ Details

Name:	us-gaap_Depreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of units in a real estate property owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfUnitsInRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from borrowings to finance the cost of construction.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

Name:	us-gaap_ProceedsFromConstructionLoansPayable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(d))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(6))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

Name:	us-gaap_RealEstateInvestmentPropertyAtCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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
-Topic 976
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477332/976-310-50-1

+ Details

Name:	us-gaap_RealEstateLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=arl_PODsWindmillFarmsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=arl_AleraMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=arl_MeranoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=arl_BanderaRidgeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=arl_MountainCreekMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Real Estate Activity - Narrative (Details) $ in Thousands					12 Months Ended
Real Estate Activity - Narrative (Details) $ in Thousands	Oct. 21, 2024 USD ($) property	Dec. 15, 2023 USD ($) property	Nov. 06, 2023 USD ($) property	Mar. 15, 2023 USD ($) property	Dec. 31, 2024 USD ($) a	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Real Estate [Line Items]
Depreciation					$ 11,662	$ 12,887	$ 8,962
"PODs" Windmill Farms
Real Estate [Line Items]
Number of acres of raw land \| a					125
Number of single family lots \| a					470
Real estate					$ 24,279
Reimbursable infrastructure investments					3,616
Alera
Real Estate [Line Items]
Real estate				$ 55,330
Number of units in real estate property \| property				240
Proceeds from construction loans payable				$ 33,000
Construction related fee				$ 1,637
Development costs					36,583
Development fees					1,172
Merano
Real Estate [Line Items]
Real estate			$ 51,910
Number of units in real estate property \| property			216
Proceeds from construction loans payable			$ 25,407
Construction related fee			$ 1,551
Development costs					24,828
Development fees					1,029
Bandera Ridge
Real Estate [Line Items]
Real estate		$ 49,603
Number of units in real estate property \| property		216
Proceeds from construction loans payable		$ 23,500
Construction related fee		$ 1,607
Development costs					26,273
Development fees					684
Mountain Creek
Real Estate [Line Items]
Real estate	$ 49,791
Number of units in real estate property \| property	234
Proceeds from construction loans payable	$ 27,500
Construction related fee	$ 1,574
Development costs					$ 5,037