XML 21 R50.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Share-Based Compensation (Summary of Grant Date Fair Value of Awards) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |  |  |  |
Options | $ 119 | $ 110 | $ 307 | $ 382
Restricted stock | 343 | 51 | 3,378 | 700
Total | $ 462 | $ 161 | $ 3,685 | $ 1,082

X
- Definition Fair value of options awarded during the period. + References No definition available. + Details
Name: | aaon_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAwardedInPeriodFairValue
Namespace Prefix: | aaon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair value of restricted stock awarded during period. + References No definition available. + Details
Name: | aaon_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestricedStockAwardedInPeriodFairValue
Namespace Prefix: | aaon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Total fair value of options and restricted stock awarded during period. + References No definition available. + Details
Name: | aaon_ShareBasedCompensationArrangementByShareBasedPaymentAwardTotalAwardedInPeriodFairValue
Namespace Prefix: | aaon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration