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Leases - Summary of ROU Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
ROU assets
Total ROU assets	$ 174,647
Lease liabilities
Total lease liabilities	185,614
Operating Leases [Member]
ROU assets
Total ROU assets	174,647
Lease liabilities
Total lease liabilities	$ 185,614

X

- Definition

Lease liabilities.

+ References

No definition available.

+ Details

Name:	abtc_LeaseLiabilitiesAbstract
Namespace Prefix:	abtc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

ROU assets.

+ References

No definition available.

+ Details

Name:	abtc_ROUAssetsAbstarct
Namespace Prefix:	abtc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

Name:	us-gaap_OperatingLeaseLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

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

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=abtc_OperatingLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: