XML 141 R125.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Segment Information (U.S. Government Related Sales by Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
Net sales | $ 590,922 | $ 507,664 | $ 479,382 | $ 445,110 | $ 562,625 | $ 494,810 | $ 493,222 | $ 487,646 | $ 2,023,078 | $ 2,038,303 | $ 2,001,240
Aerospace [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales | 365,305 | 308,582 | 290,690 | 268,599 | 335,207 | 288,480 | 281,426 | 255,770 |  |  |
Industrial [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 225,617 | $ 199,082 | $ 188,692 | $ 176,511 | $ 227,418 | $ 206,330 | $ 211,796 | $ 231,876 |  |  |
U.S. Government Related [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 430,373 | $ 364,388 | $ 339,893
Percentage of total attributable to major customer |  |  |  |  |  |  |  |  | 21.00% | 18.00% | 17.00%
U.S. Government Related [Member] | Aerospace [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 413,978 | $ 350,713 | $ 331,788
U.S. Government Related [Member] | Industrial [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 16,395 | 13,675 | 8,105
Indirect Sales to U.S. Government [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 320,797 | $ 267,230 | $ 260,394
Percentage of total attributable to major customer |  |  |  |  |  |  |  |  | 16.00% | 13.00% | 13.00%
Indirect Sales to U.S. Government [Member] | Aerospace [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 310,952 | $ 258,391 | $ 254,806
Indirect Sales to U.S. Government [Member] | Industrial [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 9,845 | 8,839 | 5,588
Direct Sales to U.S. Government [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 109,576 | $ 97,158 | $ 79,499
Percentage of total attributable to major customer |  |  |  |  |  |  |  |  | 5.00% | 5.00% | 4.00%
Direct Sales to U.S. Government [Member] | Aerospace [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 103,026 | $ 92,322 | $ 76,982
Direct Sales to U.S. Government [Member] | Industrial [Member] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 6,550 | $ 4,836 | $ 2,517
Sales [Member] | General Electric [Member] |  |  |  |  |  |  |  |  |  |  |
Percentage of total attributable to major customer |  |  |  |  |  |  |  |  | 17.00% | 18.00% | 15.00%
Trade Accounts Receivable [Member] | U.S. Government Related [Member] |  |  |  |  |  |  |  |  |  |  |
Percentage of total attributable to major customer |  |  |  |  |  |  |  |  | 2.00% | 3.00% |
Trade Accounts Receivable [Member] | General Electric [Member] |  |  |  |  |  |  |  |  |  |  |
Percentage of total attributable to major customer |  |  |  |  |  |  |  |  | 14.00% | 15.00% |

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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 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=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_SalesRevenueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=wwd_AerospaceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=wwd_IndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorCustomersAxis=wwd_USGovernmentRelatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorCustomersAxis=wwd_IndirectSalesToUSGovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorCustomersAxis=wwd_DirectSalesToUSGovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorCustomersAxis=wwd_GeneralElectricMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_TradeAccountsReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |