XML 21 R37.htm IDEA: XBRL DOCUMENT v2.4.1.9

Inventories (Allowance) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Inventory Valuation Reserves [Roll Forward]
Balance, beginning of period	$ 714us-gaap_InventoryValuationReserves	$ 579us-gaap_InventoryValuationReserves
Provisions for excess and obsolete inventories	41aaon_InventoryValuationReservesProvision	4aaon_InventoryValuationReservesProvision
Inventories written off	0aaon_InventoryValuationReservesWriteOffs	0aaon_InventoryValuationReservesWriteOffs
Balance, end of period	$ 755us-gaap_InventoryValuationReserves	$ 583us-gaap_InventoryValuationReserves

X

- Definition

Charge to expense for inventory that is expected to be excess or obsolete.

+ References

No definition available.

+ Details

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

X

- Details

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Namespace Prefix:	aaon_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Inventory that is written off due to being excess or obsolete.

+ References

No definition available.

+ Details

Name:	aaon_InventoryValuationReservesWriteOffs
Namespace Prefix:	aaon_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of valuation reserve for inventory.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.6(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.BB)

-URI http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SX 210.12-09)

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 35

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=51655945&loc=d3e3927-108312

+ Details

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