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NOTES AND INTEREST RECEIVABLE (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Notes and interest receivable	$ 126,058	$ 112,095	$ 126,564	$ 137,280
Percentage on mortgage notes receivable	75.50%
Related Party [Member]
Notes and interest receivable	$ 103,000

X

- Definition

It represents as a percentage on mortgage notes receivable.

+ References

No definition available.

+ Details

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Namespace Prefix:	arl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column G))
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=arl_RelatedPartyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: