Extended term of letters of credit.

No definition available.

Name:	agl_ExtendedTermOfLettersOfCredit
Namespace Prefix:	agl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

+ Details

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Namespace Prefix:	agl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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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- 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.

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Period Type:	duration

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Details

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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Period Type:

- Details

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- Details

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Debt (Details) - USD ($)			6 Months Ended
Debt (Details) - USD ($)	May 25, 2023	Feb. 18, 2021	Jun. 30, 2025
Secured Term Loan Facility
Debt Instrument [Line Items]
Credit facility remaining borrowing capacity		$ 100,000,000
Line of credit facility, accordion feature, increase limit		50,000,000
Long-term debt			$ 35,000,000.0
Weighted average effective interest rate			8.279%
Secured Term Loan Facility \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.00%
Secured Term Loan Facility \| Overnight Federal Funds Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.50%
Secured Term Loan Facility \| Maximum \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3.50%
Secured Term Loan Facility \| Maximum \| Base Rate Loans
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.50%
Secured Term Loan Facility \| Minimum \| Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.00%
Secured Term Loan Facility \| Minimum \| Base Rate Loans
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.00%
Secured Revolving Facility
Debt Instrument [Line Items]
Credit facility remaining borrowing capacity		100,000,000
Credit facility remaining borrowing capacity			$ 19,400,000
Secured Revolving Facility \| Minimum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage	0.375%
Standby Letters of Credit
Debt Instrument [Line Items]
Credit facility remaining borrowing capacity		$ 100,000,000
Long-term debt			0
Total outstanding letters of credit			$ 80,600,000
Extended term of letters of credit			1 year