Debt Instrument, Applicable Margin

No definition available.

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Additional Borrowing Capacity

+ References

No definition available.

+ Details

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

- Definition

Line of Credit Facility, Maximum Borrowing Capacity, Option

+ References

No definition available.

+ Details

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

- Definition

Ratio of Total Liability to Net Worth

+ References

No definition available.

+ Details

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Balance Type:	na
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

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

Period between issuance and maturity of debt instrument, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ 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

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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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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.

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

- Definition

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

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+ Details

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

- Definition

Weighted average interest rate of long-term debt outstanding calculated over time.

+ References

No definition available.

+ Details

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

- 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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- Details

Name:	srt_RangeAxis=srt_MaximumMember
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Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Debt - Narrative (Details) - USD ($)			1 Months Ended	3 Months Ended		6 Months Ended
Debt - Narrative (Details) - USD ($)	Dec. 29, 2025	Dec. 16, 2024	Apr. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	May 29, 2025	May 28, 2025	Feb. 27, 2024	Apr. 25, 2023	May 27, 2022	Oct. 24, 2019
Line of Credit Facility [Line Items]
Ratio of total liability to net worth				1.46		1.46
Revolving Credit Facility
Line of Credit Facility [Line Items]
Credit facility maximum borrowings		$ 200,000,000.0	$ 230,000,000.0	$ 600,000,000.0		$ 600,000,000.0		$ 600,000,000	$ 500,000,000.0	$ 230,000,000.0	$ 15,500,000	$ 23,000,000.0		$ 23,000,000.0
Option to increase maximum borrowing capacity													$ 300,000,000.0
Weighted average interest rate				5.20%	5.60%	5.30%	5.60%
Line of Credit Facility, Additional Borrowing Capacity	$ 100,000,000.0		$ 30,000,000.0
Revolving Credit Facility \| Base Rate
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate						0.50%
Revolving Credit Facility \| SOFR
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate						1.00%
Revolving Credit Facility \| Minimum
Line of Credit Facility [Line Items]
Applicable margin				1.25%		1.25%
Commitment fee percentage						0.10%
Revolving Credit Facility \| Maximum
Line of Credit Facility [Line Items]
Applicable margin				1.75%		1.75%
Commitment fee percentage						0.20%
Letter of Credit \| Minimum
Line of Credit Facility [Line Items]
Commitment fee percentage						1.25%
Letter of Credit \| Maximum
Line of Credit Facility [Line Items]
Commitment fee percentage						1.75%
Term Loan
Line of Credit Facility [Line Items]
Debt instrument, face amount		$ 80,000,000.0
Debt Instrument, Term		60 months
Long-Term Debt									$ 72,000,000.0