Class of Warrant or Right, Number of Warrants Authorized

No definition available.

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Namespace Prefix:	alk_
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- Definition

Class of Warrants or Rights, Additional Warrants Issued

+ References

No definition available.

+ Details

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Namespace Prefix:	alk_
Data Type:	xbrli:sharesItemType
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Period Type:	instant

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
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

No definition available.

+ Details

Name:	us-gaap_ClassOfWarrantOrRightLineItems
Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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Balance Type:	na
Period Type:	instant

- Details

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- Details

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- Details

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Namespace Prefix:
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SHAREHOLDERS' EQUITY (Details) - $ / shares	Oct. 30, 2020	Sep. 28, 2020	Apr. 23, 2020
US Treasury CARES Act Loan [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		427,080
Class of Warrant or Right, Number of Warrants Authorized		4,115,786
US Treasury CARES Act Loan [Member] \| Subsequent Event [Member]
Class of Warrant or Right [Line Items]
Class of Warrants or Rights, Additional Warrants Issued	1,983,550
ALK Common Stock Warrant [Member]
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right			915,930
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 31.61