XML 73 R62.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Share-Based Compensation (Summary of Income Tax Benefit Related to Share-Based Compensation) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |  |
Options | $ 301 | $ 791
Restricted stock | 162 | 273
Total | $ 463 | $ 1,064

X
- Definition Tax benefit from share-based compensation related to options. + References No definition available. + Details
Name: | aaon_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpenseStockOptions
Namespace Prefix: | aaon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Employee Service Share Based Compensation Tax (Expense) Benefit From Compensation Expense Restricted Stock + References No definition available. + Details
Name: | aaon_EmployeeServiceShareBasedCompensationTaxExpenseBenefitFromCompensationExpenseRestrictedStock
Namespace Prefix: | aaon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration