Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

Name:	us-gaap_Revenues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

+ Details

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of total revenues from external customers attributed to all foreign countries in total from which the entity derives revenues.

+ References

No definition available.

+ Details

Name:	wwd_DisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountriesPercentage
Namespace Prefix:	wwd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Segment Information (External Net Sales by Geographical Area) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Consolidated net sales	$ 558,365	$ 483,759	$ 485,513	$ 408,339	$ 528,697	$ 460,241	$ 468,793	$ 407,896	$ 1,935,976	$ 1,865,627	$ 1,711,702
United States [Member]
Net sales									1,058,912	927,345	874,791
All Other Countries [Member]
Net sales									108,400	106,791	99,364
Europe [Member]
Net sales									480,922	542,753	473,054
Germany [Member]
Percent of external net sales, foreign countries									9.00%	13.00%	12.00%
Asia [Member]
Net sales									$ 287,742	$ 288,738	$ 264,493