$AAON
AAON, INC. Stock $aaon

$aaon Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000082414220000164 Filed on November 05, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q3
Revenue	$116.7M	$134.8M	$113.5M
YoY Change	-4.79%	18.74%	0.5%
Cost Of Revenue	$82.80M	$93.92M	$86.09M
YoY Change	-4.28%	9.1%	7.47%
Gross Profit	$33.92M	$40.85M	$27.41M
YoY Change	-6.76%	49.03%	-16.51%
Gross Profit Margin	29.07%	30.31%	24.15%
Selling, General & Admin	$14.10M	$14.72M	$12.37M
YoY Change	-0.7%	18.93%	-2.31%
% of Gross Profit	41.56%	36.03%	45.14%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$6.600M	$6.700M	$5.800M
YoY Change	26.92%	15.52%	28.89%
% of Gross Profit	19.46%	16.4%	21.16%
Operating Expenses	$14.60M	$14.72M	$12.37M
YoY Change	0.0%	18.93%	-2.31%
Operating Profit	$19.32M	$26.13M	$15.03M
YoY Change	-11.29%	73.86%	-25.45%
Interest Expense	$0.00	$0.00	$0.00
YoY Change
% of Operating Profit	0.0%	0.0%	0.0%
Other Income/Expense, Net	$0.00	$15.00K	-$7.000K
YoY Change		-314.29%	-240.0%
Pretax Income	$25.70M	$26.16M	$15.03M
YoY Change	20.09%	74.0%	-25.59%
Income Tax	$6.900M	$5.696M	$742.0K
% Of Pretax Income	26.85%	21.78%	4.94%
Net Earnings	$18.89M	$20.46M	$14.29M
YoY Change	9.37%	43.18%	-1.54%
Net Earnings / Revenue	16.19%	15.18%	12.59%
Basic Earnings Per Share	$0.36	$0.39	$0.27
Diluted Earnings Per Share	$0.35	$0.38	$0.26
COMMON SHARES
Basic Shares Outstanding	52.24M shares	52.26M shares	52.11M shares
Diluted Shares Outstanding		53.15M shares	52.72M shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$79.00M	$70.60M	$28.40M
YoY Change	194.78%	148.59%	165.42%
Cash & Equivalents	$79.03M	$70.60M	$28.37M
Short-Term Investments
Other Short-Term Assets	$7.000M	$10.00M	$1.600M
YoY Change	-63.16%	525.0%	23.08%
Inventory	$82.22M	$78.82M	$80.62M
Prepaid Expenses
Receivables	$47.39M	$62.20M	$56.08M
Other Receivables	$4.600M	$3.900M	$3.900M
Total Short-Term Assets	$220.3M	$225.5M	$170.3M
YoY Change	17.44%	32.44%	17.86%
LONG-TERM ASSETS
Property, Plant & Equipment	$223.3M	$208.9M	$175.7M
YoY Change	25.41%	18.86%	6.58%
Goodwill	$3.229M	$3.229M	$3.229M
YoY Change	0.0%	0.0%	0.0%
Intangibles	$38.00K
YoY Change
Long-Term Investments
YoY Change
Other Assets	$579.0K
YoY Change
Total Long-Term Assets	$228.8M	$214.4M	$181.6M
YoY Change	24.41%	18.04%	7.26%
TOTAL ASSETS
Total Short-Term Assets	$220.3M	$225.5M	$170.3M
Total Long-Term Assets	$228.8M	$214.4M	$181.6M
Total Assets	$449.0M	$439.9M	$351.9M
YoY Change	20.89%	25.01%	12.14%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$12.45M	$16.04M	$11.12M
YoY Change	5.85%	44.25%	-31.47%
Accrued Expenses	$46.59M	$45.47M	$42.76M
YoY Change	5.23%	6.32%	14.06%
Deferred Revenue	$0.00	$2.151M
YoY Change	-100.0%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$59.03M	$61.51M	$53.10M
YoY Change	5.36%	15.82%	0.06%
LONG-TERM LIABILITIES
Long-Term Debt	$6.400M	$6.400M	$0.00
YoY Change	1.59%
Other Long-Term Liabilities	$4.423M	$4.200M	$3.700M
YoY Change	22.86%	13.51%	105.56%
Total Long-Term Liabilities	$4.423M	$10.60M	$3.700M
YoY Change	-55.32%	186.49%	105.56%
TOTAL LIABILITIES
Total Short-Term Liabilities	$59.03M	$61.51M	$53.10M
Total Long-Term Liabilities	$4.423M	$10.60M	$3.700M
Total Liabilities	$63.46M	$95.00M	$72.60M
YoY Change	-21.95%	30.85%	12.73%
SHAREHOLDERS EQUITY
Retained Earnings	$345.5M	$336.5M	$276.7M
YoY Change	20.68%	21.62%	10.93%
Common Stock	$209.0K	$209.0K	$209.0K
YoY Change	0.48%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$350.9M	$344.9M	$279.6M
YoY Change
Total Liabilities & Shareholders Equity	$449.0M	$439.9M	$352.2M
YoY Change	20.89%	24.92%	12.14%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q3
OPERATING ACTIVITIES
Net Income	$18.89M	$20.46M	$14.29M
YoY Change	9.37%	43.18%	-1.54%
Depreciation, Depletion And Amortization	$6.600M	$6.700M	$5.800M
YoY Change	26.92%	15.52%	28.89%
Cash From Operating Activities	$31.80M	$34.20M	$34.70M
YoY Change	16.48%	-1.44%	333.75%
INVESTING ACTIVITIES
Capital Expenditures	-$18.80M	-$15.50M	-$14.00M
YoY Change	193.75%	10.71%	66.67%
Acquisitions
YoY Change
Other Investing Activities	$6.400M	$0.00	$4.000M
YoY Change		-100.0%	-21.57%
Cash From Investing Activities	-$12.40M	-$15.50M	-$10.00M
YoY Change	96.83%	55.0%	203.03%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-15.70M	-11.00M	-10.00M
YoY Change	214.0%	10.0%	-24.81%
NET CHANGE
Cash From Operating Activities	31.80M	34.20M	34.70M
Cash From Investing Activities	-12.40M	-15.50M	-10.00M
Cash From Financing Activities	-15.70M	-11.00M	-10.00M
Net Change In Cash	3.700M	7.700M	14.70M
YoY Change	-76.87%	-47.62%	-270.93%
FREE CASH FLOW
Cash From Operating Activities	$31.80M	$34.20M	$34.70M
Capital Expenditures	-$18.80M	-$15.50M	-$14.00M
Free Cash Flow	$50.60M	$49.70M	$48.70M
YoY Change	50.15%	2.05%	196.95%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0000824142
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1	P1Y
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	0-18953
	dei	Entity Registrant Name EntityRegistrantName	AAON, INC.
CY2020Q3	aaon	Number Of Variable Interest Entities With Directed Activities NumberOfVariableInterestEntitiesWithDirectedActivities	2	numberOfVIEs
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P3Y1M6D
	aaon	Definedcontributionemployeeautomaticcontributionpercentag Definedcontributionemployeeautomaticcontributionpercentag	0.06
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	NV
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	87-0448736
	dei	Entity Address Address Line1 EntityAddressAddressLine1	2425 South Yukon Ave.,
	dei	Entity Address City Or Town EntityAddressCityOrTown	Tulsa,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	OK
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	74107
	dei	City Area Code CityAreaCode	918
	dei	Local Phone Number LocalPhoneNumber	583-2266
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
	dei	Security12b Title Security12bTitle	Common Stock
	dei	Trading Symbol TradingSymbol	AAON
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	52242095	shares
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	70603000	USD
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CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	56028000	USD
CY2020Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	22973000	USD
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	us-gaap	Operating Income Loss OperatingIncomeLoss	76118000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	43785000	USD
CY2020Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	10000	USD
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	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52955049	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52624583	shares
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	290140000	USD
	us-gaap	Net Income Loss NetIncomeLoss	60117000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	18519000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8546000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	22520000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	9910000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	344892000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	322695000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	20460000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	4346000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2852000	USD
CY2020Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	5474000	USD
CY2020Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	-13000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	344892000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	249443000	USD
	us-gaap	Net Income Loss NetIncomeLoss	36438000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	11283000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9854000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	16460000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8303000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	282255000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	267511000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	14290000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3598000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2068000	USD
CY2019Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	5289000	USD
CY2019Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	-77000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	282255000	USD
	us-gaap	Net Income Loss NetIncomeLoss	36438000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	18971000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	17627000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	31000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	0	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	193000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	91000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	1776000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	1003000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	8546000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	9854000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	61000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-296000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-18000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	17000	USD
	aaon	Interest Income Note Receivable InterestIncomeNoteReceivable	19000	USD
	aaon	Interest Income Note Receivable InterestIncomeNoteReceivable	19000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7676000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3614000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-5011000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2096000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-3142000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	2283000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	6994000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	4014000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	598000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	513000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3654000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	782000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	1128000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	263000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	688000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	4991000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	96995000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	70583000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	48955000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	30831000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	61000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	68000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	0	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	6000000	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	0	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	6000000	USD
	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	38000	USD
	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	39000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-48856000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-30724000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	18519000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	11283000	USD
	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	21390000	USD
	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	15437000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1130000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1023000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	9910000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	8303000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13911000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13480000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	34228000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	26379000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	44373000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1994000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	78601000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	28373000	USD
	us-gaap	Use Of Estimates UseOfEstimates	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Use of Estimates</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Because these estimates and assumptions require significant judgment, actual results could differ from those estimates and could have a significant impact on our results of operations, financial position and cash flows. We reevaluate our estimates and assumptions as needed, but at a minimum on a quarterly basis. The most significant estimates include, but are not limited to, inventory reserves, warranty accrual, worker's compensation accrual, medical insurance accrual, income taxes and share-based compensation. Actual results could differ materially from those estimates.</span></div>
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	134772000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	113500000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	397851000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	346759000	USD
CY2020Q3	us-gaap	Sales Commissions And Fees SalesCommissionsAndFees	11500000	USD
CY2019Q3	us-gaap	Sales Commissions And Fees SalesCommissionsAndFees	12700000	USD
	us-gaap	Sales Commissions And Fees SalesCommissionsAndFees	39000000.0	USD
	us-gaap	Sales Commissions And Fees SalesCommissionsAndFees	34400000	USD
	aaon	Extended Product Warranties Minimum Length ExtendedProductWarrantiesMinimumLength	P6M
	aaon	Extended Product Warranties Maximum Length ExtendedProductWarrantiesMaximumLength	P10Y
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1800000	USD
CY2019Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	1800000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	1600000	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1600000	USD
CY2020Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	62741000	USD
CY2019Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	67752000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	546000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	353000	USD
CY2020Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	62195000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	67399000	USD
CY2020Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	429000	USD
CY2019Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	392000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	353000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	264000	USD
CY2020Q3	aaon	Provision Recoveries For Expected Credit Losses Net Of Adjustments ProvisionRecoveriesForExpectedCreditLossesNetOfAdjustments	117000	USD
CY2019Q3	aaon	Provision Recoveries For Expected Credit Losses Net Of Adjustments ProvisionRecoveriesForExpectedCreditLossesNetOfAdjustments	-37000	USD
	aaon	Provision Recoveries For Expected Credit Losses Net Of Adjustments ProvisionRecoveriesForExpectedCreditLossesNetOfAdjustments	193000	USD
	aaon	Provision Recoveries For Expected Credit Losses Net Of Adjustments ProvisionRecoveriesForExpectedCreditLossesNetOfAdjustments	91000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	2000	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	2000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	546000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	353000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	546000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	353000	USD
CY2020Q3	us-gaap	Inventory Raw Materials InventoryRawMaterials	76673000	USD
CY2019Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	68842000	USD
CY2020Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	1541000	USD
CY2019Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	1825000	USD
CY2020Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	4717000	USD
CY2019Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	5578000	USD
CY2020Q3	us-gaap	Inventory Gross InventoryGross	82931000	USD
CY2019Q4	us-gaap	Inventory Gross InventoryGross	76245000	USD
CY2020Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	4112000	USD
CY2019Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2644000	USD
CY2020Q3	us-gaap	Inventory Net InventoryNet	78819000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	73601000	USD
CY2020Q2	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2373000	USD
CY2019Q2	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2350000	USD
CY2019Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2644000	USD
CY2018Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	1210000	USD
CY2020Q3	aaon	Inventory Valuation Reserves Provision InventoryValuationReservesProvision	1969000	USD
CY2019Q3	aaon	Inventory Valuation Reserves Provision InventoryValuationReservesProvision	-150000	USD
	aaon	Inventory Valuation Reserves Provision InventoryValuationReservesProvision	1776000	USD
	aaon	Inventory Valuation Reserves Provision InventoryValuationReservesProvision	1003000	USD
CY2020Q3	aaon	Inventory Valuation Reserves Write Offs InventoryValuationReservesWriteOffs	230000	USD
CY2019Q3	aaon	Inventory Valuation Reserves Write Offs InventoryValuationReservesWriteOffs	0	USD
	aaon	Inventory Valuation Reserves Write Offs InventoryValuationReservesWriteOffs	308000	USD
	aaon	Inventory Valuation Reserves Write Offs InventoryValuationReservesWriteOffs	13000	USD
CY2020Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	4112000	USD
CY2019Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2200000	USD
CY2020Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	4112000	USD
CY2019Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2200000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	700000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	700000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	603000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	428000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	97000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	272000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	58000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	58000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	175000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	175000	USD
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	5200000	USD
CY2020Q3	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	2054000	USD
CY2020Q3	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1841000	USD
CY2019Q3	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1116000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	11576000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1510000	USD
CY2020Q3	aaon	Changein Capital Expenditures Incurred But Not Yet Paid ChangeinCapitalExpendituresIncurredButNotYetPaid	-4421000	USD
CY2019Q3	aaon	Changein Capital Expenditures Incurred But Not Yet Paid ChangeinCapitalExpendituresIncurredButNotYetPaid	-116000	USD
	aaon	Changein Capital Expenditures Incurred But Not Yet Paid ChangeinCapitalExpendituresIncurredButNotYetPaid	625000	USD
	aaon	Changein Capital Expenditures Incurred But Not Yet Paid ChangeinCapitalExpendituresIncurredButNotYetPaid	-280000	USD
CY2019Q3	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	2707000	USD
	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	5356000	USD
	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	6129000	USD
	aaon	Product Warranty Accrual Minimum Length ProductWarrantyAccrualMinimumLength	P1Y
	aaon	Product Warranty Accrual Maximum Length ProductWarrantyAccrualMaximumLength	P25Y
CY2020Q2	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	13160000	USD
CY2019Q2	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	11666000	USD
CY2019Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12652000	USD
CY2018Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	11421000	USD
CY2020Q3	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	1687000	USD
CY2019Q3	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	2023000	USD
	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	4481000	USD
CY2020Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	13527000	USD
CY2019Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12350000	USD
CY2020Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	13527000	USD
CY2019Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12350000	USD
CY2020Q3	us-gaap	Product Warranty Expense ProductWarrantyExpense	2054000	USD
CY2019Q3	us-gaap	Product Warranty Expense ProductWarrantyExpense	2707000	USD
	us-gaap	Product Warranty Expense ProductWarrantyExpense	5356000	USD
	us-gaap	Product Warranty Expense ProductWarrantyExpense	6129000	USD
CY2020Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	13527000	USD
CY2020Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	23400000	USD
CY2019Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	12652000	USD
CY2020Q3	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	10257000	USD
CY2019Q4	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	11538000	USD
CY2020Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	7448000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	5058000	USD
CY2020Q3	aaon	Accrued Profit Sharing Current AccruedProfitSharingCurrent	3000000	USD
CY2019Q4	aaon	Accrued Profit Sharing Current AccruedProfitSharingCurrent	1721000	USD
CY2020Q3	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	646000	USD
CY2019Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	522000	USD
CY2020Q3	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	247000	USD
CY2019Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	707000	USD
CY2020Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	2151000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	4627000	USD
CY2020Q3	aaon	Donations Current DonationsCurrent	604000	USD
CY2019Q4	aaon	Donations Current DonationsCurrent	354000	USD
CY2020Q3	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	3493000	USD
CY2019Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	3804000	USD
CY2020Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	4095000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3286000	USD
CY2020Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	45468000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	44269000	USD
CY2020Q3	aaon	Actual Net Worth For Compliance ActualNetWorthForCompliance	344900000	USD
CY2020Q3	us-gaap	Minimum Net Worth Required For Compliance MinimumNetWorthRequiredForCompliance	175000000.0	USD
CY2020Q3	aaon	Ratio Of Total Liability To Net Worth RatioOfTotalLiabilityToNetWorth	0.3
CY2020Q3	aaon	Maximum Ratio Of Total Liability To Net Worth Required For Compliance MaximumRatioOfTotalLiabilityToNetWorthRequiredForCompliance	2
CY2020Q3	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3081000	USD
CY2019Q3	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	446000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	8435000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3766000	USD
CY2020Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2615000	USD
CY2019Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	296000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7676000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3614000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5696000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	742000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16111000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7380000	USD
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019Q3	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.023
CY2019Q3	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.013
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.040
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.042
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	0
CY2019Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	-0.045
	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	0
	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	-0.020
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.023
CY2019Q3	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.017
	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.033
	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.031
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.005
CY2019Q3	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.071
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.002
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.021
CY2020Q3	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.003
CY2019Q3	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.041
	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.008
	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.012
CY2020Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.218
CY2019Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.049
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.211
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.168
CY2018	aaon	Additional Income Tax Expense Benefit AdditionalIncomeTaxExpenseBenefit	600000	USD
CY2019Q3	aaon	Percent Of Eligible Investments For State And Local Tax Credit PercentOfEligibleInvestmentsForStateAndLocalTaxCredit	0.01
	aaon	Period Of Eligible Investments For State And Local Tax Credit PeriodOfEligibleInvestmentsForStateAndLocalTaxCredit	P5Y
	aaon	Additional Income Tax Credit On Certain Capital Expenditure Percent AdditionalIncomeTaxCreditOnCertainCapitalExpenditurePercent	0.01
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	300000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	900000	USD
	aaon	Expected Effective Income Tax Rate Continuing Operations ExpectedEffectiveIncomeTaxRateContinuingOperations	0.24
CY2016Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	8900000	shares
CY2020Q3	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	738709	shares
	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P6Y3M10D
CY2020Q3	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	31.90
CY2020Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	20940000	USD
CY2019Q3	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	479241	shares
	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P5Y10M24D
CY2019Q3	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	25.03
CY2019Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	10020000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3627047	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	36.32
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	1038542	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	44.84
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	547808	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	33.80
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	214838	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	40.48
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3902943	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	38.71
CY2020Q3	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	738709	shares
CY2020Q3	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	31.90
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	12100000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	7000000.0	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	18500000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	11300000	USD
	aaon	Share Based Compensation Arrangement By Share Based Payment Award Options Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAwardedInPeriodFairValue	20315000	USD
CY2020Q3	aaon	Share Based Compensation Arrangement By Share Based Payment Award Restriced Stock Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardRestricedStockAwardedInPeriodFairValue	0	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	267484	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	34.42
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	76148	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	43.54
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	108215	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	32.55
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	8216	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	39.88
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	227201	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	38.17
CY2020Q3	aaon	Share Based Compensation Arrangement By Share Based Payment Award Options Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAwardedInPeriodFairValue	258000	USD
CY2019Q3	aaon	Share Based Compensation Arrangement By Share Based Payment Award Options Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAwardedInPeriodFairValue	244000	USD
	aaon	Share Based Compensation Arrangement By Share Based Payment Award Options Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAwardedInPeriodFairValue	12332000	USD
CY2019Q3	aaon	Share Based Compensation Arrangement By Share Based Payment Award Restriced Stock Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardRestricedStockAwardedInPeriodFairValue	0	USD
	aaon	Share Based Compensation Arrangement By Share Based Payment Award Restriced Stock Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardRestricedStockAwardedInPeriodFairValue	3316000	USD
	aaon	Share Based Compensation Arrangement By Share Based Payment Award Restriced Stock Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardRestricedStockAwardedInPeriodFairValue	4584000	USD
CY2020Q3	aaon	Share Based Compensation Arrangement By Share Based Payment Award Total Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalAwardedInPeriodFairValue	258000	USD
CY2019Q3	aaon	Share Based Compensation Arrangement By Share Based Payment Award Total Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalAwardedInPeriodFairValue	244000	USD
	aaon	Share Based Compensation Arrangement By Share Based Payment Award Total Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalAwardedInPeriodFairValue	15648000	USD
	aaon	Share Based Compensation Arrangement By Share Based Payment Award Total Awarded In Period Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalAwardedInPeriodFairValue	24899000	USD
CY2020Q3	aaon	Allocated Share Based Compensation Expense Stock Options AllocatedShareBasedCompensationExpenseStockOptions	2208000	USD
CY2019Q3	aaon	Allocated Share Based Compensation Expense Stock Options AllocatedShareBasedCompensationExpenseStockOptions	1539000	USD
	aaon	Allocated Share Based Compensation Expense Stock Options AllocatedShareBasedCompensationExpenseStockOptions	6136000	USD
	aaon	Allocated Share Based Compensation Expense Stock Options AllocatedShareBasedCompensationExpenseStockOptions	7683000	USD
CY2020Q3	aaon	Allocated Share Based Compensation Expense Restricted Stock AllocatedShareBasedCompensationExpenseRestrictedStock	644000	USD
CY2019Q3	aaon	Allocated Share Based Compensation Expense Restricted Stock AllocatedShareBasedCompensationExpenseRestrictedStock	529000	USD
	aaon	Allocated Share Based Compensation Expense Restricted Stock AllocatedShareBasedCompensationExpenseRestrictedStock	2410000	USD
	aaon	Allocated Share Based Compensation Expense Restricted Stock AllocatedShareBasedCompensationExpenseRestrictedStock	2171000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2852000	USD
CY2019Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2068000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8546000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9854000	USD
CY2020Q3	aaon	Employee Service Share Based Compensation Tax Benefit From Compensation Expense Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpenseStockOptions	579000	USD
CY2019Q3	aaon	Employee Service Share Based Compensation Tax Benefit From Compensation Expense Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpenseStockOptions	233000	USD
	aaon	Employee Service Share Based Compensation Tax Benefit From Compensation Expense Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpenseStockOptions	1990000	USD
	aaon	Employee Service Share Based Compensation Tax Benefit From Compensation Expense Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpenseStockOptions	964000	USD
CY2020Q3	aaon	Employee Service Share Based Compensation Tax Expense Benefit From Compensation Expense Restricted Stock EmployeeServiceShareBasedCompensationTaxExpenseBenefitFromCompensationExpenseRestrictedStock	9000	USD
CY2019Q3	aaon	Employee Service Share Based Compensation Tax Expense Benefit From Compensation Expense Restricted Stock EmployeeServiceShareBasedCompensationTaxExpenseBenefitFromCompensationExpenseRestrictedStock	7000	USD
	aaon	Employee Service Share Based Compensation Tax Expense Benefit From Compensation Expense Restricted Stock EmployeeServiceShareBasedCompensationTaxExpenseBenefitFromCompensationExpenseRestrictedStock	503000	USD
	aaon	Employee Service Share Based Compensation Tax Expense Benefit From Compensation Expense Restricted Stock EmployeeServiceShareBasedCompensationTaxExpenseBenefitFromCompensationExpenseRestrictedStock	462000	USD
CY2020Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	588000	USD
CY2019Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	240000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2493000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1426000	USD
	aaon	Definedcontributionemployeeautomaticcontributionpercentag Definedcontributionemployeeautomaticcontributionpercentag	0.06
	aaon	Definedcontributionemployeeautomaticcontributionpercentag Definedcontributionemployeeautomaticcontributionpercentag	0.06
CY2020Q3	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2242000	USD
CY2019Q3	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1820000	USD
	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	6791000	USD
	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5270000	USD
	aaon	Profit Sharing Percentof Pretax Profit Paidto Eligible Employeeson Quarterly Basis ProfitSharingPercentofPretaxProfitPaidtoEligibleEmployeesonQuarterlyBasis	0.10
CY2020Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	3000000	USD
CY2019Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1684000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	8691000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	4948000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52260551	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52111444	shares
CY2020Q3	aaon	Defined Benefit Plan Medical Claim Payments DefinedBenefitPlanMedicalClaimPayments	2985000	USD
CY2019Q3	aaon	Defined Benefit Plan Medical Claim Payments DefinedBenefitPlanMedicalClaimPayments	1650000	USD
	aaon	Defined Benefit Plan Medical Claim Payments DefinedBenefitPlanMedicalClaimPayments	6843000	USD
	aaon	Defined Benefit Plan Medical Claim Payments DefinedBenefitPlanMedicalClaimPayments	4500000	USD
CY2020Q3	aaon	Defined Benefit Plan Heath Saving Account Payments DefinedBenefitPlanHeathSavingAccountPayments	890000	USD
CY2019Q3	aaon	Defined Benefit Plan Heath Saving Account Payments DefinedBenefitPlanHeathSavingAccountPayments	790000	USD
	aaon	Defined Benefit Plan Heath Saving Account Payments DefinedBenefitPlanHeathSavingAccountPayments	2663000	USD
	aaon	Defined Benefit Plan Heath Saving Account Payments DefinedBenefitPlanHeathSavingAccountPayments	2410000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	20460000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	14290000	USD
	us-gaap	Net Income Loss NetIncomeLoss	36438000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52174705	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52086209	shares
CY2020Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	890744	shares
CY2019Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	610683	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	780344	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	538374	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53151295	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52722127	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52955049	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52624583	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.39
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.38
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.26
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.14
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	118832	shares
CY2019Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1834379	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	473295	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1886728	shares
CY2018Q2	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	15000000	USD
CY2019Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	20000000	USD
CY2020Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	20000000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	429456	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	22520000	USD
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	52.44
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	365886	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	16460000	USD
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	44.99
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	13980690	shares
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	16.58
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	134772000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	113500000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	397851000	USD
CY2020Q3	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	662000	USD
CY2019Q3	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	338000	USD
	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	2550000	USD
	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	706000	USD
CY2020Q3	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	110000	USD
CY2019Q3	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	32000	USD
	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	207000	USD
	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	225000	USD
CY2020Q3	us-gaap	Due From Related Parties DueFromRelatedParties	425000	USD
CY2019Q4	us-gaap	Due From Related Parties DueFromRelatedParties	22000	USD
CY2020Q3	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	0	USD
CY2019Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	2000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	346759000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	40848000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	27410000	USD
	us-gaap	Gross Profit GrossProfit	121926000	USD
	us-gaap	Gross Profit GrossProfit	83044000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	113500000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	346759000	USD
CY2019Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	86090000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	263715000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	27410000	USD
	us-gaap	Gross Profit GrossProfit	83044000	USD
CY2019Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	12374000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	38963000	USD
CY2019Q3	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-6000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-296000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	15030000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	43785000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	9000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	49000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-7000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-16000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	15032000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	43818000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	742000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7380000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	14290000	USD
	us-gaap	Net Income Loss NetIncomeLoss	36438000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.26
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.16
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52111444	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52086209	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52722127	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52624583	shares
CY2019Q3	us-gaap	Assets Current AssetsCurrent	170284000	USD
CY2019Q3	us-gaap	Assets Assets	351900000	USD
CY2019Q3	us-gaap	Liabilities Current LiabilitiesCurrent	53103000	USD
CY2019Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	12873000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	282255000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	249443000	USD
	us-gaap	Net Income Loss NetIncomeLoss	36438000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	11283000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9854000	USD
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	16460000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8303000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	282255000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	267511000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	14290000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3598000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2068000	USD
CY2019Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	5289000	USD
CY2019Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	-77000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	282255000	USD
	us-gaap	Net Income Loss NetIncomeLoss	36438000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	17627000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	91000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	1003000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	9854000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-296000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	17000	USD
	aaon	Interest Income Note Receivable InterestIncomeNoteReceivable	19000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3614000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2096000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	2283000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	4014000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	513000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	782000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	263000	USD
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	4991000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	70583000	USD
	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	30831000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	68000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	6000000	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	6000000	USD
	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	39000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-30724000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	11283000	USD
	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	15437000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1023000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	8303000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13480000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	26379000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1994000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	28373000	USD

Files In Submission

Name	View Source	Status
0000824142-20-000164-index-headers.html	Edgar Link	pending
0000824142-20-000164-index.html	Edgar Link	pending
0000824142-20-000164.txt	Edgar Link	pending
0000824142-20-000164-xbrl.zip	Edgar Link	pending
aaon-20200930.htm	Edgar Link	pending
aaon-20200930.xsd	Edgar Link	pending
aaon-20200930_cal.xml	Edgar Link	unprocessable
aaon-20200930_def.xml	Edgar Link	unprocessable
aaon-20200930_htm.xml	Edgar Link	completed
aaon-20200930_lab.xml	Edgar Link	unprocessable
aaon-20200930_pre.xml	Edgar Link	unprocessable
aaon10q093020ex311.htm	Edgar Link	pending
aaon10q093020ex312.htm	Edgar Link	pending
aaon10q093020ex321.htm	Edgar Link	pending
aaon10q093020ex322.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$AAON
AAON, INC. Stock $aaon

2020 Q4 Form 10-Q Financial Statement

#000082414220000164 Filed on November 05, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AAON AAON, INC. Stock $aaon

2020 Q4 Form 10-Q Financial Statement

#000082414220000164 Filed on November 05, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AAON
AAON, INC. Stock $aaon