XML 67 R56.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Stockholders' Equity (Details) - USD ($) |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 76 Months Ended | 119 Months Ended | 135 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 24, 2016 | Oct. 29, 2015 | May 19, 2015 | Oct. 31, 2016 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2016 | Sep. 30, 2016 | Jun. 02, 2016
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) |  |  |  |  |  |  | 575,256 | 418,912 |  |  | 11,629,980 |
Aggregate price of shares repurchased since inception |  |  |  |  |  |  | $ 15,131,237 | $ 9,437,458 |  |  | $ 137,336,072 |
Average price of shares repurchased since inception (per share) |  |  |  |  |  |  | $ 26.30 | $ 22.53 |  |  | $ 11.81 |
Cash dividends declared per common share |  |  |  |  | $ 0 | $ 0 | $ 0.11 | $ 0.11 |  |  |  |
Dividend Declared [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Cash dividends declared per common share | $ 0.11 | $ 0.11 | $ 0.11 |  |  |  |  |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) |  |  |  | 34,455 |  |  |  |  |  |  |  |
Aggregate price of shares repurchased since inception |  |  |  | $ 1,000,000 |  |  |  |  |  |  |  |
2010 Stock Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase program amount authorized (in shares) |  |  | 5,700,000.0 |  |  |  |  |  |  |  |  | 2,000,000.0
Stock Repurchase Program, Authorized Amount | $ 25,000,000 |  |  |  |  |  |  |  |  |  |  | $ 25,000,000
Stock repurchased during period (in shares) |  |  |  |  |  |  | 151,266 | 0 | 3,820,487 |  |  |
Aggregate price of shares repurchased since inception |  |  |  |  |  |  | $ 4,041,685 | $ 0 | $ 60,549,487 |  |  |
Average price of shares repurchased since inception (per share) |  |  |  |  |  |  | $ 26.72 | $ 0.00 | $ 15.85 |  |  |
2005 401(k) Stock Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) |  |  |  |  |  |  | 402,623 | 403,172 |  |  | 5,944,566 |
Aggregate price of shares repurchased since inception |  |  |  |  |  |  | $ 10,531,020 | $ 9,075,481 |  |  | $ 61,387,891 |
Average price of shares repurchased since inception (per share) |  |  |  |  |  |  | $ 26.16 | $ 22.51 |  |  | $ 10.33 |
2006 Director and Officer Repurchase Program [Member] |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Shareholders' Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased during period (in shares) |  |  |  |  |  |  | 21,367 | 15,740 |  | 1,864,927 |  |
Aggregate price of shares repurchased since inception |  |  |  |  |  |  | $ 558,532 | $ 361,977 |  | $ 15,398,694 |  |
Average price of shares repurchased since inception (per share) |  |  |  |  |  |  | $ 26.14 | $ 23.00 |  | $ 8.26 |  |

X
- Definition [Line Items] for Schedule of Shareholders' Equity [Table] + References No definition available. + Details
Name: | aaon_ScheduleOfShareholdersEquityLineItems
Namespace Prefix: | aaon_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
Name: | us-gaap_TreasuryStockAcquiredAverageCostPerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_DividendsAxis=us-gaap_DividendDeclaredMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=aaon_A2010StockRepurchaseProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=aaon_A2005401kStockRepurchaseProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=aaon_A2006DirectorandOfficerRepurchaseProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |