Line Of Credit Facility, Accordion Feature, Increase Limit

No definition available.

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Namespace Prefix:	asif_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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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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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

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Balance Type:	credit
Period Type:	instant

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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DEBT - SG Funding Facility (Details) - USD ($)		2 Months Ended	4 Months Ended	11 Months Ended
DEBT - SG Funding Facility (Details) - USD ($)	Feb. 06, 2026	Feb. 05, 2026	Dec. 04, 2025	Jul. 31, 2025	Sep. 30, 2026	Dec. 31, 2025	Feb. 06, 2025
Line of Credit Facility [Line Items]
Aggregate Principal Amount Issued					$ 16,421,000,000	$ 13,583,000,000
Principal amount outstanding					12,251,407,000	11,194,548,000
SG Funding Facility \| Line of Credit
Line of Credit Facility [Line Items]
Aggregate Principal Amount Issued					2,325,000,000	1,825,000,000
Borrowing capacity increase					2,500,000,000
Principal amount outstanding					1,470,811,000	$ 612,811,000
SG Funding Facility \| Line of Credit \| Secured Debt
Line of Credit Facility [Line Items]
Aggregate Principal Amount Issued					650,000,000		$ 500,000,000
Interest rate	1.75%
SG Funding Facility \| Line of Credit \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Aggregate Principal Amount Issued					$ 1,675,000,000
Interest rate	1.80%	1.80%	1.90%	2.05%
Maximum borrowing capacity	$ 1,825,000,000
SG Funding Facility \| Term Loans \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Interest rate			1.85%