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Retirement Benefits (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Pension Plans, Defined Benefit [Member] |  |
Net periodic retirement (benefit) cost | $ (240) | $ (143)
United States Pension Plans of US Entity, Defined Benefit [Member] |  |
Defined Benefit, Lump Sum Buyout Benefits Paid, Current Year | 670 |
Net periodic retirement (benefit) cost | (214) | (132)
Foreign Pension Plans, Defined Benefit [Member] |  |
Net periodic retirement (benefit) cost | (26) | (11)
Other Postretirement Benefit Plans, Defined Benefit [Member] |  |
Net periodic retirement (benefit) cost | 325 | $ 266
Scenario, Forecast [Member] | United States Pension Plans of US Entity, Defined Benefit [Member] |  |
Defined Benefit, Lump Sum Buyout Benefits Paid, Expected | $ 0 |

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- Definition The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition During the third quarter of fiscal year 2016, Woodward opened a lump-sum buy-out window for certain former U.S. employees and/or their dependents eligible to receive postretirement defined benefit pension payments for past employment services to the Company. Eligible pension plan participants may elect to receive a one-time lump-sum payment or an immediate annuity in lieu of future pension benefit payments. Amount represents the pension benefit payments under the lump-sum buy-out options during the fourth quarter of fiscal year 2016. + References No definition available. + Details
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- Definition During the third quarter of fiscal year 2016, Woodward opened a lump-sum buy-out window for certain former U.S. employees and/or their dependents eligible to receive postretirement defined benefit pension payments for past employment services to the Company. Eligible pension plan participants may elect to receive a one-time lump-sum payment or an immediate annuity in lieu of future pension benefit payments. Amount represents the estimated pension benefit payments under the lump-sum buy-out options expected to be paid in 2017. + References No definition available. + Details
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