Debt Instrument, Applicable Margin

No definition available.

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Data Type:	dtr-types1:percentItemType
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Period Type:	instant

- Definition

Line of Credit Facility, Increase In Maximum Borrowing Capacity

+ References

No definition available.

+ Details

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

- Definition

Line of Credit Facility, Maximum Borrowing Capacity, Option

+ References

No definition available.

+ Details

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

- Definition

Maximum Ratio of Total Liability to Net Worth Required for Compliance

+ References

No definition available.

+ Details

Name:	aaon_MaximumRatioOfTotalLiabilityToNetWorthRequiredForCompliance
Namespace Prefix:	aaon_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio of Total Liability to Net Worth

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
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

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
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

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 835
-SubTopic 30
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+ Details

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

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
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Balance Type:	na
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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+ Details

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

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
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-Paragraph 6
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+ Details

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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-Subparagraph (SX 210.5-02(22)(b))
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+ Details

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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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Balance Type:	na
Period Type:	duration

- Details

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Balance Type:
Period Type:

- Details

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- Details

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- Details

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- Details

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- Details

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Balance Type:
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- Details

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Debt - Narrative (Details) - USD ($)	3 Months Ended
Debt - Narrative (Details) - USD ($)	Mar. 31, 2025	Mar. 31, 2024	Apr. 30, 2025	Dec. 31, 2024	Dec. 16, 2024	Feb. 27, 2024	Apr. 25, 2023	Oct. 24, 2019
Line of Credit Facility [Line Items]
Ratio of total liability to net worth	0.95
Maximum ratio of total liability to net worth for compliance	3
Revolving Credit Facility
Line of Credit Facility [Line Items]
Credit facility maximum borrowings				$ 200,000,000	$ 200,000,000	$ 15,500,000	$ 23,000,000	$ 23,000,000
Option to increase maximum borrowing capacity					300,000,000
Total Term Loan	$ 177,981,000			76,467,000
Weighted average interest rate	5.60%	6.60%
Revolving Credit Facility \| Subsequent Event
Line of Credit Facility [Line Items]
Credit facility maximum borrowings			$ 230,000,000
Increase in maximum borrowing capacity			$ 30,000,000
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%
Commitment fee percentage	0.10%
Revolving Credit Facility \| Maximum
Line of Credit Facility [Line Items]
Applicable margin	1.75%
Commitment fee percentage	0.20%
Letter of Credit
Line of Credit Facility [Line Items]
Total Term Loan	$ 654,000			300,000
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]
Total Term Loan	$ 74,436,000			$ 78,424,000
Weighted average interest rate	5.70%
Debt Instrument, Face Amount					$ 80,000,000
Debt Instrument, Term	60 months
Term Loan \| SOFR
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.10%