Woodward (WWD) 10-Q 8 Aug 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Jun. 30, 2018	Aug. 02, 2018
Document and Entity Information
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Entity Registrant Name	WOODWARD, INC.
Entity Central Index Key	108,312
Current Fiscal Year End Date	--09-30
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		61,692,493

Consolidated Statements of Earn

Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Consolidated Statements of Earnings
Net sales	$ 588,117	$ 548,622	$ 1,606,514	$ 1,491,897
Costs and expenses:
Cost of goods sold	427,897	394,750	1,176,012	1,090,997
Selling, general and administrative expenses	54,600	44,561	140,362	130,521
Research and development costs	39,470	34,663	111,425	91,588
Restructuring Charges	0	0	17,013	0
Interest expense	7,878	6,769	21,315	20,399
Interest income	(342)	(358)	(1,176)	(1,237)
Other expense (income), net (Note 17)	4,197	(450)	1,012	(6,353)
Total costs and expenses	533,700	479,935	1,465,963	1,325,915
Earnings before income taxes	54,417	68,687	140,551	165,982
Income tax expense	5,300	15,061	34,685	27,703
Net earnings	$ 49,117	$ 53,626	$ 105,866	$ 138,279
Earnings per share (Note 3):
Basic earnings per share	$ 0.80	$ 0.87	$ 1.72	$ 2.25
Diluted earnings per share	$ 0.77	$ 0.85	$ 1.66	$ 2.18
Weighted Average Common Shares Outstanding (Note 3):
Basic	61,608	61,288	61,417	61,387
Diluted	63,881	63,392	63,782	63,520
Cash dividends per share paid to Woodward common stockholders	$ 0.1425	$ 0.1250	$ 0.4100	$ 0.3600

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Comprehensive earnings
Net earnings	$ 49,117	$ 53,626	$ 105,866	$ 138,279
Other comprehensive earnings:
Foreign currency translation adjustments	(21,864)	6,643	(7,177)	(4,251)
Net gain (loss) on foreign currency transactions designated as hedges of net investments in a foreign subsidiaries	2,559	(3,313)	548	(428)
Taxes on changes in foreign currency translation adjustments	513	835	250	349
Foreign currency translation and transactions adjustments, net of tax	(18,792)	4,165	(6,379)	(4,330)
Unrealized loss on fair value adjustment of derivative instruments	(23,658)		(23,658)
Reclassification of net realized (gains) losses on derivatives to earnings	4,955	(18)	4,919	(54)
Taxes on changes in derivative transactions	8	7	21	21
Derivative adjustments, net of tax	(18,695)	(11)	(18,718)	(33)
Minimum retirement benefit liability adjustments:
Loss (gain) due to settlement or curtailment arising during the period	0	0	59	0
Amortization of net prior service cost (benefit)	137	55	413	168
Amortization of net loss	248	644	742	1,925
Foreign currency exchange rate changes on pension and other postretirement benefit plan liabilities	843	(746)	161	197
Taxes on changes in pension and other postretirement benefit plan liability, net of foreign currency exchange rate changes	(349)	6	(421)	(839)
Pension and other postretirement benefit plan adjustments, net of tax	879	(41)	954	1,451
Total comprehensive earnings	$ 12,509	$ 57,739	$ 81,723	$ 135,367

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Current assets:
Cash and cash equivalents, including restricted cash of $6,290 and $0, respectively	$ 114,399	$ 87,552
Inventories	589,440	473,505
Accounts receivable, less allowance for uncollectible amounts of $3,668 and $3,776, respectively	386,110	402,182
Income taxes receivable	7,994	19,376
Other current assets	39,171	38,574
Total current assets	1,137,114	1,021,189
Property, plant and equipment, net	1,044,033	922,043
Goodwill	826,926	556,545
Intangible assets, net	707,761	171,882
Deferred income tax assets	15,208	19,950
Other assets	73,022	65,500
Total assets	3,804,064	2,757,109
Current liabilities:
Short-term borrowings and current portion of long-term debt	144,000	32,600
Accounts payable	222,416	232,788
Income taxes payable	11,407	6,774
Accrued liabilities	162,211	155,072
Total current liabilities	540,034	427,234
Long-term debt, less current portion	1,211,396	580,286
Deferred income tax liabilities	170,101	33,408
Other liabilities	416,498	344,798
Total liabilities	2,338,029	1,385,726
Commitments and contingencies (Note 21)
Stockholders' equity:
Preferred stock, par value $0.003 per share, 10,000 shares authorized, no shares issued	0	0
Common stock, par value $0.001455 per share, 150,000 shares authorized, 72,960 shares issued	106	106
Additional paid-in capital	184,814	163,836
Accumulated other comprehensive losses	(77,329)	(53,186)
Deferred compensation	8,393	7,135
Retained earnings	1,900,928	1,820,268
Stockholders' equity excluding treasury stock	2,016,912	1,938,159
Treasury stock at cost, 11,282 shares and 11,739 shares, respectively	(542,484)	(559,641)
Treasury stock held for deferred compensation, at cost, 202 shares and 186 shares, respectively	(8,393)	(7,135)
Total Stockholders' Equity	1,466,035	1,371,383
Total liabilities and stockholders' equity	$ 3,804,064	$ 2,757,109

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Current assets:
Restricted cash	$ 6,290
Allowance, accounts receivable	$ 3,668	$ 3,776
Stockholders' equity:
Preferred stock, par value	$ 0.003	$ 0.003
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.001455	$ 0.001455
Common stock, shares authorized	150,000	150,000
Common stock, shares issued	72,960	72,960
Treasury stock, shares	11,282	11,739
Treasury stock held for deferred compensation, shares	202	186

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net earnings	$ 105,866	$ 138,279
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	72,137	59,587
Loss (gain) due to settlements or curtailments of postretirement plan	(330)	0
Net (gain) loss on sales of assets	(404)	(3,598)
Stock-based compensation	16,292	15,580
Deferred income taxes	(25,521)	(1,585)
(Gain) loss on derivatives reclassified from accumulated comprehensive earnings into earnings	4,919	(54)
Changes in operating assets and liabilities:
Accounts receivable	42,322	26,052
Inventories	(46,002)	(48,075)
Accounts payable and accrued liabilities	(29,587)	2,345
Income taxes	39,966	8,066
Retirement benefit obligations	(3,883)	(2,321)
Other	(13,692)	(10,478)
Net cash provided by operating activities	162,083	183,798
Cash flows from investing activities:
Payments for purchase of property, plant and equipment	(89,597)	(65,075)
Proceeds from sale of assets	1,213	3,697
Proceeds from sales of short-term investments	8,970	5,002
Payments for purchases of short-term investments	(824)	(7,344)
Business acquisitions, net of cash acquired	(771,069)
Net cash used in investing activities	(851,307)	(63,720)
Cash flows from financing activities:
Cash dividends paid	(25,206)	(22,076)
Proceeds from sales of treasury stock	7,102	12,554
Payments for repurchases of common stock	0	(61,782)
Borrowings on revolving lines of credit and short-term borrowings	1,769,105	1,106,000
Payments on revolving lines of credit and short-term borrowings	(1,422,624)	(1,145,800)
Proceeds from issuance of long-term debt	400,000
Payments of long-term debt and capital lease obligations	(315)	(307)
Payments of debt financing costs	(1,325)
Payment for forward option derivative instrument	(5,543)
Net cash used in financing activities	721,194	(111,411)
Effect of exchange rate changes on cash and cash equivalents	(5,123)	(755)
Net change in cash and cash equivalents	26,847	7,912
Cash and cash equivalents, including restricted cash at beginning of year	87,552	81,090
Cash and cash equivalents, including restricted cash at end of period	$ 114,399	$ 89,002

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total stockholders equity	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Total Accumulated Other Comprehensive (Loss) Earnings [Member]	Foreign Currency Translation Adjustments [Member]	Unrealized Derivative Gains (Losses) [Member]	Minimum Retirement Benefit Liability Adjustments [Member]	Deferred Compensation in Equity [Member]	Retained Earnings [Member]	Treasury Stock at Cost [Member]	Treasury Stock Held for Deferred Compensaton [Member]	Total
Balances at Sep. 30, 2016	$ 1,212,595		$ 106	$ 141,570	$ (65,705)	$ (25,971)	$ 179	$ (39,913)	$ 5,089	$ 1,649,506	$ (512,882)	$ (5,089)
Balance, Preferred Stock, shares at Sep. 30, 2016		0
Balance, Common Stock, shares at Sep. 30, 2016			72,960
Balance, Treasury Stock, shares at Sep. 30, 2016											(11,374)
Balance, Treasury stock held for deferred compensation, Shares at Sep. 30, 2016												(157)
Net earnings	138,279									138,279			$ 138,279
Other comprehensive income (loss), net of tax	(2,912)				(2,912)	(4,330)	(33)	1,451
Cash dividends paid	(22,076)									(22,076)
Purchases of treasury stock	(63,255)										$ (63,255)
Purchases of treasury stock, shares											(915)
Sales of treasury stock	14,027			(2,130)							$ 16,157
Sales of treasury stock, shares											416
Common shares issued from treasury stock to settle employee liabilities	1,767			740					1,767		$ 1,027	$ (1,767)	1,767
Common shares issued from treasury stock to settle employee liabilities, shares											26	(26)
Common shares issued from treasury stock for benefit plans	14,014			6,501							$ 7,513		$ 14,014
Common shares issued from treasury stock for benefit plans, shares											199		199
Stock-based compensation	15,580			15,580
Purchases of stock by deferred compensation plan									254			$ (254)
Purchases of stock by deferred compensation plan, shares												(3)
Distribution of stock from deferred compensation plan									(10)			$ 10
Balances at Jun. 30, 2017	1,308,019		$ 106	162,261	(68,617)	(30,301)	146	(38,462)	7,100	1,765,709	$ (551,440)	$ (7,100)
Balance, Preferred Stock, shares at Jun. 30, 2017		0
Balance, Common Stock, shares at Jun. 30, 2017			72,960
Balance, Treasury Stock, shares at Jun. 30, 2017											(11,648)
Balance, Treasury stock held for deferred compensation, Shares at Jun. 30, 2017												(186)
Balances at Sep. 30, 2017	1,371,383		$ 106	163,836	(53,186)	(27,280)	135	(26,041)	7,135	1,820,268	$ (559,641)	$ (7,135)	$ 1,371,383
Balance, Preferred Stock, shares at Sep. 30, 2017		0											0
Balance, Common Stock, shares at Sep. 30, 2017			72,960										72,960
Balance, Treasury Stock, shares at Sep. 30, 2017											(11,739)		(11,739)
Balance, Treasury stock held for deferred compensation, Shares at Sep. 30, 2017												(186)	(186)
Net earnings	105,866									105,866			$ 105,866
Other comprehensive income (loss), net of tax	(24,143)				(24,143)	(6,379)	(18,718)	954
Cash dividends paid	(25,206)									(25,206)
Sales of treasury stock	7,102			(2,471)							$ 9,573
Sales of treasury stock, shares											255
Common shares issued from treasury stock to settle employee liabilities													0
Common shares issued from treasury stock for benefit plans	14,741			7,157							$ 7,584		$ 14,741
Common shares issued from treasury stock for benefit plans, shares											202		202
Stock-based compensation	16,292			16,292
Purchases of stock by deferred compensation plan									1,267			$ (1,267)
Purchases of stock by deferred compensation plan, shares												(17)
Distribution of stock from deferred compensation plan									(9)			$ 9
Distribution of stock from deferred compensation plan, shares												1
Balances at Jun. 30, 2018	$ 1,466,035		$ 106	$ 184,814	$ (77,329)	$ (33,659)	$ (18,583)	$ (25,087)	$ 8,393	$ 1,900,928	$ (542,484)	$ (8,393)	$ 1,466,035
Balance, Preferred Stock, shares at Jun. 30, 2018		0											0
Balance, Common Stock, shares at Jun. 30, 2018			72,960										72,960
Balance, Treasury Stock, shares at Jun. 30, 2018											(11,282)		(11,282)
Balance, Treasury stock held for deferred compensation, Shares at Jun. 30, 2018												(202)	(202)

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Stockholders Equity [Abstract]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.1425	$ 0.1250	$ 0.4100	$ 0.3600

Basis of Presentation

Basis of Presentation	9 Months Ended
	Jun. 30, 2018
Basis of Presentation
Basis of Presentation	WOODWARD, INC. NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (In thousands, except per share amounts) (Unaudited)  Note 1. Basis of presentation The Condensed Consolidated Financial Statements of Woodward, Inc. (“Woodward” or the “Company”) as of June 30, 2018 and for the three and nine-months ended June 30, 2018 and June 30, 2017, included herein, have not been audited by an independent registered public accounting firm. These Condensed Consolidated Financial Statements reflect all normal recurring adjustments that, in the opinion of management, are necessary to present fairly Woodward’s financial position as of June 30, 2018, and the statements of earnings, comprehensive earnings, cash flows, and changes in stockholders’ equity for the periods presented herein. The results of operations for the three and nine-months ended June 30, 2018 are not necessarily indicative of the operating results to be expected for other interim periods or for the full fiscal year. Dollar and share amounts contained in these Condensed Consolidated Financial Statements are in thousands, except per share amounts. The Condensed Consolidated Financial Statements included herein have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim reporting. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to such rules and regulations. These unaudited Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and Notes thereto included in Woodward’s most recent Annual Report on Form 10-K filed with the SEC and other financial information filed with the SEC. Management is required to use estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, the reported revenues and expenses recognized during the reporting period, and certain financial statement disclosures, in the preparation of the Condensed Consolidated Financial Statements included herein. Significant estimates in these Condensed Consolidated Financial Statements include allowances for uncollectible amounts, net realizable value of inventories, customer rebates earned and payable, warranty reserves, useful lives of property and identifiable intangible assets, the evaluation of impairments of property, the provision for income tax and related valuation reserves, the valuation of assets and liabilities acquired in business combinations, the valuation of derivative instruments, assumptions used in the determination of the funded status and annual expense of pension and postretirement employee benefit plans, the valuation of stock compensation instruments granted to employees and board members, and contingencies. Actual results could vary from Woodward’s estimates. As disclosed in Note 1, Operations and summary of significant accounting policies in the Notes to the Consolidated Financial Statements in Part II, Item 8 of Woodward’s most recent Annual Report on Form 10-K, the amortization of intangible assets has been reclassified from a separate line in the Condensed Consolidated Statements of Earnings for the three and nine-months ended June 30, 2017 to an allocated expense/cost component of cost of goods sold and selling, general and administrative expenses based on the nature of the intangible asset that is being amortized. The reclassification of these amounts conforms to the current period presentation.

New Accounting Standards

New Accounting Standards	9 Months Ended
	Jun. 30, 2018
Recent Accounting Pronouncements
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	Note 2. New accounting standards From time to time, the Financial Accounting Standards Board (“FASB”) or other standards setting bodies issue new accounting pronouncements. Updates to the FASB Accounting Standards Codification (“ASC”) are communicated through issuance of an Accounting Standards Update (“ASU”). In March 2018, the FASB issued ASU 2018-05, “Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118.” ASU 2018-05 formally amended ASC Topic 740, Income Taxes (“ASC 740”) for the guidance previously provided by SEC Staff Accounting Bulletin 118 (“SAB 118”). SAB 118 expressed views of the SEC regarding ASC 740 in the reporting period that includes the enactment date of H.R.1, “An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018” (the “Tax Act”) (previously known as “The Tax Cuts and Jobs Act”). The Company adopted SAB 118 in the first quarter of fiscal year 2018 and therefore, the Company’s subsequent adoption of ASU 2018-05 in the second quarter of fiscal year 2018 had no impact on its accounting for income taxes in the third quarter or first nine months of fiscal year 2018. In February 2018, the FASB issued ASU 2018-02, “Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” ASU 2018-02 allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the enactment of tax reform under the Tax Act and provides guidance on the disclosure requirements regarding the stranded tax effects. The amendments in ASU 2018-02 are effective for all entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. The amendments in ASU 2018-02 may be applied retrospectively in the period of adoption to all periods in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Act is recognized or may be applied as of the beginning of the period of adoption. Woodward is currently assessing the impact of the adoption of the new guidance and has not yet elected the method of adoption it will apply. When adopted, if Woodward elects to reclassify under ASU 2018-02, a portion of accumulated other comprehensive earnings would be reclassified to retained earnings. In August 2017, the FASB issued ASU 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities.” ASU 2017-12 is intended to more closely align the financial statement reporting of hedging relationships with the economic results of an entity’s risk management activities and to make certain targeted improvements to simplify the application of hedge accounting guidance in current U.S. GAAP. ASU 2017-12 is also intended to increase standardization of financial statement disclosures including requiring a tabular disclosure of the income statement effects of fair value and cash flow hedges. Woodward early adopted the new guidance in the first quarter of fiscal year 2018. Initial application of the new guidance did not have any impact on Woodward’s hedging arrangements or on the disclosures related to such arrangements as of the date of adoption and through the second quarter of fiscal year 2018. In the third quarter of fiscal 2018, Woodward entered into new hedging arrangements and incorporated the provisions of this guidance in those hedging arrangements and related disclosures as discussed in Note 7, Derivative instruments and hedging activities . In March 2017, the FASB issued ASU 2017-07, “Compensation – Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” ASU 2017-07 requires that the service cost component of net periodic benefit costs from defined benefit and other postretirement benefit plans be included in the same statement of earnings captions as other compensation costs arising from services rendered by the covered employees during the period. The other components of net benefit cost will be presented in the statement of earnings separately from service costs. ASU 2017-07 is effective for fiscal years beginning after December 31, 2017 (fiscal year 2019 for Woodward). Following adoption, only service costs will be eligible for capitalization into manufactured inventories, which should reduce diversity in practice. The amendments of ASU 2017-07 should be applied retrospectively for the presentation of the service cost component and the other components of net periodic benefit costs from defined benefit and other postretirement benefit plans in the statement of earnings and prospectively, on and after the effective date, for the capitalization of the service cost component into manufactured inventories. Woodward will adopt the new guidance in fiscal year 2019, and expects changes to earnings before income taxes to be insignificant in the year of adoption. In October 2016, the FASB issued ASU 2016-16, “Accounting for Income Taxes: Intra-Entity Asset Transfers of Assets Other than Inventory.” ASU 2016-16 eliminates the current U.S. GAAP exception deferring the tax effects of intercompany asset transfers (other than inventory) until the transferred asset is sold to a third party or otherwise recovered through use. After adoption of ASU 2016-16, Woodward will recognize the tax consequences of intercompany asset transfers in the buyer’s and seller’s tax jurisdictions when the transfer occurs, even though the pre-tax effects of these transactions are eliminated in consolidation. ASU 2016-16 is effective for fiscal years beginning after December 15, 2017 (fiscal year 2019 for Woodward), including interim periods within the year of adoption. Woodward will adopt the new guidance in fiscal year 2019. Modified retrospective adoption is required with any cumulative-effect adjustment recorded to retained earnings as of the beginning of the period of adoption. Woodward c urrently anticipates the adoption of ASU 2016-16 will result in balance sheet reclassifications, but based on Woodward’s current transactional activity, such adjustments are not expected to be significant. In November 2016, the FASB issued ASU 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force).” ASU 2016-18 provides authoritative guidance requiring that restricted cash be included with cash and cash equivalents when reconciling the be ginning of period and end of period amounts reported in the statement of cash flows. The guidance is applied retrospectively to all periods presented and is effective for annual reporting periods beginning after December 15, 2017 (fiscal year 2019 for Woodward) , and interim periods with in those annual periods. In the third quarter of fiscal year 2018, the Company’s Condensed Consolidated Balance Sheet included restricted cash, and as a result, the Company concurrently early adopted this guidance in the three- months ended June 30, 2018 . As a result of the adoption, the Company has included restricted cash of $6,290 as of June 30, 2018 in the end of period amounts reported in the statement of cash flows for the nine-months ended June 30, 2018. There was no restricted cash in the beginning of year balance for the nine-months ended June 30, 2018, or in the beginning of year or end of period balances for the nine-months ended June 30, 2017 . In June 2016, the FASB issued ASU 2016-13, “Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 adds a current expected credit loss (“CECL”) impairment model to U.S. GAAP that is based on expected losses rather than incurred losses. Modified retrospective adoption is required with any cumulative-effect adjustment recorded to retained earnings as of the beginning of the period of adoption. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019 (fiscal year 2021 for Woodward), including interim periods within the year of adoption. Early adoption is permitted for fiscal years beginning after December 15, 2018 (fiscal year 2020 for Woodward), including interim periods within those fiscal years. Woodward will adopt the new guidance in fiscal year 2021. Woodward does not expect the application of the CECL impairment model to have a significant impact on Woodward’s allowance for uncollectible amounts for accounts receivable and notes receivable from municipalities. In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842).” The purpose of ASU 2016-02 is to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. In addition, ASU 2016-02 modifies the definition of a lease to clarify that an arrangement contains a lease when such arrangement conveys the right to control the use of an identified asset. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 (fiscal year 2020 for Woodward), including interim periods within the year of adoption. Originally under ASU 2016-2, an organization was required upon adoption to recognize and measure leases beginning in the earliest period presented using a modified retrospective approach and restate the financial statements for all periods presented. In July 2018, the FASB issued ASU 2018-11, which amends ASU 2016-02 to provide organizations with an additional (and optional) transition method whereby it may elect to recognize and measure leases by applying the cumulative impact of adopting ASU 2016-02 to the opening retained earnings balance in the period of adoption, thereby removing the requirement that the financial statements of prior periods be restated. Although early adoption is permitted, Woodward expects to adopt the new guidance in fiscal year 2020. Woodward expects that it will elect to not restate fiscal years 2018 and 2019 and will recognize the cumulative impact of adopting the standard in Woodward’s opening retained earnings for fiscal year 2020, but has not made a final determination on its future adoption method. Woodward is currently assessing the impact this guidance may have on its Consolidated Financial Statements, including which of its existing lease arrangements will be impacted by the new guidance and whether other arrangements not currently classified as leases may become subject to the guidance of ASU 2016-02 . Rent expense for all operating leases in fiscal year 2017, none of which was recognized on the balance sheet, was $8,302 . As of September 30, 2017, future minimum rental payments required under operating leases, none of which were recognized on the balance sheet, were $23,215 . In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers” and has subsequently issued several supplemental and/or clarifying ASUs (collectively “ASC 606”). ASC 606 prescribes a single common revenue standard that replaces most existing U.S. GAAP revenue recognition guidance. ASC 606 outlines a five-step model, under which Woodward will recognize revenue as performance obligations within a customer contract are satisfied. ASC 606 is intended to provide more consistent interpretation and application of the principles outlined in the standard across filers in multiple industries and within the same industries compared to current practices, which should improve comparability. Adoption of ASC 606 is required for annual reporting periods beginning after December 15, 2017 (fiscal year 2019 for Woodward), including interim periods within the reporting period. Woodward has determined it will elect to adopt using the cumulative effect transition method with the cumulative effect of initial adoption recognized at the date of initial application. Further, under the cumulative effect transition method, Woodward will disclose the impact of changes to financial statement line items as a result of applying ASC 606 (rather than previous U.S. GAAP) and include an explanation of the reasons for significant changes. Woodward is currently assessing the impact that the future adoption of ASC 606 may have on its Consolidated Financial Statements by analyzing its current portfolio of customer contracts, including a review of historical accounting policies and practices to identify potential differences in applying the guidance of ASC 606. Woodward is also performing a comprehensive review of its current processes and systems to determine and implement changes required to support the adoption of ASC 606 on October 1, 2018, the first day of Woodward’s fiscal year 2019. As part of this review process, Woodward is implementing new software solutions to support revenue reporting after adoption. Based on Woodward’s review of its customer contracts, Woodward has determined that revenue on the majority of its customer contracts will continue to be recognized at a point in time, generally upon shipment of products, consistent with Woodward’s current revenue recognition model. Upon adoption of ASC 606, however, Woodward also believes a significant portion of its revenues from sales of products and services to customers will be recognized over time, rather than at a point in time, due primarily to the terms of certain customer contracts. As a result of recognizing some revenue over time, various balance sheet line items will be impacted. As such, Woodward believes the adoption of ASC 606 will have an impact on both the timing of revenue recognition and various line items within the Consolidated Balance Sheet. Woodward generally expenses costs as incurred for the engineering and development of new products. Customer funding received for such engineering and development efforts is currently recognized as revenue when earned, with the corresponding costs recognized as cost of sales. ASC 606 requires most customer funding of product engineering and development to be deferred and recognized as revenue as the related products are delivered to the customer. ASC 606 also requires product engineering and development costs to be capitalized as contract fulfillment costs, to the extent recoverable from the deferred customer funding, and subsequently amortized as the related products are delivered to the customer. Therefore, under ASC 606, Woodward expects to record both contract assets and contract liabilities related to such funded engineering and development efforts, which are expected to become material over time. Recognized revenues and research and development costs are both expected to decrease in the year of adoption and for at least several years thereafter, due to the recognition of these contract assets and liabilities. However, recognition of these contract assets and liabilities are expected to have an immaterial impact on pre-tax earnings in future periods. In addition, ASC 606 will require more comprehensive disclosures about revenue streams and contracts with customers, including significant judgments required. Woodward is currently implementing changes to its processes for preparing required disclosures and to information systems that support the financial reporting process. Woodward is also evaluating implications to the Company’s system of internal controls, relative to revenue recognition and the related revenue disclosures, which are based on the criteria outlined in the Committee of Sponsoring Organizations of the Treadway Commission’s 2013 Internal Control – Integrated Framework.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Jun. 30, 2018
Earnings Per Share
Earnings Per Share	Note 3. Earnings per share Basic earnings per share is computed by dividing net earnings available to common stockholders by the weighted-average number of shares of common stock outstanding for the period. Diluted earnings per share reflects the weighted-average number of shares outstanding after consideration of the dilutive effect of stock options and restricted stock. The following is a reconciliation of net earnings to basic earnings per share and diluted earnings per share:      Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Numerator:  Net earnings $ 49,117 $ 53,626 $ 105,866 $ 138,279  Denominator:  Basic shares outstanding 61,608 61,288 61,417 61,387  Dilutive effect of stock options and restricted stock 2,273 2,104 2,365 2,133  Diluted shares outstanding 63,881 63,392 63,782 63,520  Income per common share:  Basic earnings per share $ 0.80 $ 0.87 $ 1.72 $ 2.25  Diluted earnings per share $ 0.77 $ 0.85 $ 1.66 $ 2.18 The following stock option grants were outstanding during the three and nine-months ended June 30, 2018 and 2017, but were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive.     Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Options 764 780 760 66  Weighted-average option price $ 78.70 $ 62.64 $ 78.73 $ 62.98 The weighted-average shares of common stock outstanding for basic and diluted earnings per share included the weighted-average treasury stock shares held for deferred compensation obligations of the following:    Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Weighted-average treasury stock shares held for deferred compensation obligations 201 186 197 178 

Business Acquisitions

Business Acquisitions	9 Months Ended
	Jun. 30, 2018
Business Combinations
Business Acquisitions	Note 4. Business acquisition On April 8, 2018 , the Company, and its wholly-owned subsidiary, Woodward Aken GmbH (collectively, the “Purchasers”), entered into a Share Purchase Agreement (the “L’Orange Agreement”) with MTU Friedrichshafen GmbH (“MTU”) and MTU America Inc. (together with MTU, the “Sellers”), both of which were subsidiaries of Rolls-Royce PLC (“Rolls-Royce”). Pursuant to the L’Orange Agreement, the Purchasers agreed to acquire all of the outstanding shares of stock of L’Orange GmbH, together with its wholly-owned subsidiaries in China and Germany, as well as all of the outstanding equity interests of its affiliate, Fluid Mechanics LLC, and their related operations (collectively, “L’Orange”), for total consideration (including cash consideration and the assumption of certain liabilities) of €700,000 , or approximately $811,000 based on the foreign currency exchange rate as of t he date Woodward executed cross currency swaps in connection with the finan cing of the transaction as described in Note 7, Derivative instruments and hedging activities . The total consideration to be paid is subject to customary post-closing adjustments. The transactions contemplated by the L’Orange Agreement were completed on June 1, 2018 (the “Closing”) and L’Orange became a subsidiary of the Company . L’Orange is a supplier of fuel injection systems for industrial diesel, heavy fuel oil and dual-fuel engines. L’Orange supplies fuel injection technology for engines that power a wide range of industrial applications including marine power and propulsion systems, special-application vehicles, locomotives, oil and gas processing, and power generation. L’Orange serves many large specialist diesel engine manufacturers, including Rolls-Royce Power Systems’ subsidiaries, MTU and Bergen Engines, and other low to high speed engine builders. Following the Closing, L’Orange was renamed Woodward L’Orange and has been integrated into the Company’s Industrial segment. In connection with the Closing, MTU and a subsidiary of Rolls-Royce, and L’Orange, entered into a long-term supply agreement, dated June 1, 2018 (the “LTSA”). Pursuant to the terms of the LTSA, L’Orange will continue to supply to MTU and its affiliates within Rolls-Royce certain liquid fuel injection systems, injectors, pumps and other associated parts and components for industrial diesel, heavy fuel oil and dual-fuel engines in a manner consistent with the supply of such products prior to the transaction. The LTSA has an initial term that extends through December 31, 2032. During the term of the LTSA, MTU is required to continue to purchase certain of these products exclusively from L’Orange, subject to certain limitations specified therein, at pricing negotiated at arms-length. ASC Topic 805, “Bus iness Combinations” (“ASC 805”), provides a framework to account for acquisition transactions under US GAAP. The preliminary purchase price of L’Orange, prepared consistent with the required ASC 805 framework, is allocate d as follows:     Cash paid to Sellers $ 780,355  Less acquired cash and restricted cash (9,286)  Total purchase price $ 771,069 The cash consideration was financed through the use of cash on hand, the issuance of an aggregate principal amount of $400,000 of senior unsecured notes in a series of private placement transactions and $167,420 borrowed under Woodward’s existing revolving credit agreement (see Note 14, Credit Facilities, short-term borrowings and long-term debt ). In connection with these borrowings, the Company entered into cross currency swap transactions, which effectively lowered the interest rate on each tranche of the senior unsecured notes and the borrowings under the existing revolving credit agreement (see Note 7, Derivative instruments and hedging activities ). The allocation of the purchase price to the assets acquired and liabilities assumed was accounted for under the purchase method of accounting in accordance with ASC 805. Assets acquired and liabilities assumed in the transaction were recorded at their estimated acquisition date fair values, while transaction costs associated with the acquisition were expensed as incurred. Woodward’s preliminary allocation was based on an evaluation of the appropriate fair values and represents management’s best estimate based on available data. Due to the timing of the transaction, Woodward is in the process of finalizing valuations of current assets, property, plant and equipment (including estimated useful lives), goodwill, intangible assets (including estimated useful lives), and all current and noncurrent liabilities other than the valuation of the pension obligation, the valuation of which is complete. Additionally, Woodward is finalizing the projected combined future tax rate to be applied to the valuation of assets, which could impact the valuation of goodwill and intangible assets. The final determination of the fair value of assets and liabilities will be completed within the one year measurement period as allowed by ASC 805. The following table, which is preliminary and subject to change, summarizes the estimated fair values of the assets acquired and liabilities assumed at the date of the acquisition of L’Orange. Any potential adjustments will be made retroactively and could be material to the preliminary values presented below.     Accounts receivable $ 26,538  Inventories (1) 72,674  Other current assets 1,385  Property, plant, and equipment 90,589  Goodwill 269,433  Intangible assets 556,023  Total assets acquired 1,016,642  Other current liabilities 40,362  Deferred income tax liabilities 164,791  Other noncurrent liabilities 40,420  Total liabilities assumed 245,573  Net assets acquired $ 771,069 (1) Inventories include a $15,107 adjustment to state work in progress and finished goods inventories at their fair value as of the acquisition date. The inventory fair value adjustment is being recognized as a non-cash increase to cost of goods sold ratably over the estimated inventory turnover period, with the entire $15,107 fair value adjustment expected to be recognized in cost of goods sold during the year ending September 30, 2018 . In connection with the acquisition of L’Orange, Woodward assumed the defined benefit pension obligations of the L’Orange defined benefit pension plans (see Note 19, Retirement benefits ). As of June 1, 2018, the total liability recognized by the Company associated with the L’Orange defined benefit pension plans was $38,998 , of which $1,143 was considered current. As summary of the intangible assets acquired, weighted-average useful lives, and amortization methods follows:     Estimated Amounts Weighted-Average Useful Life Amortization Method  Intangible assets with finite lives:  Customer relationships and contracts $ 379,423 20 years Straight-line  Process technology 71,940 21 years Straight-line  Backlog 40,611 1 year Accelerated  Other 232 3 years Straight-line  Intangible asset with indefinite life:  Trade name 63,817 Indefinite Not amortized  Total $ 556,023  Future amortization expense associated with the acquired intangibles as of June 1, 2018 is expected to be:     Year Ending September 30:  2018 (remaining) $ 18,832  2019 34,884  2020 19,701  2021 21,458  2022 21,745  Thereafter 375,586  $ 492,206  The preliminary purchase price allocation resulted in the recognition of $269,433 of goodwill. Only the portion of goodwill which relates to the U.S. operations of L’Orange is expected to be deductible for tax purposes. The Company has included all of the goodwill in its Industrial segment. The goodwill represents the estimated value of potential expansion with new customers, the opportunity to further develop sales opportunities with new customers, other synergies including supply chain savings expected to be achieved through the integration of L’Orange with Woodward’s Industrial segment, and intangible assets that do not qualify for separate recognition, such as value of the assembled L’Orange workforce that is not included within the estimated value of the acquired backlog and customer relationship intangible assets. Pro forma results for Woodward giving effect to the L’Orange acquisition The following unaudited pro forma financial information presents the combined results of operations of Woodward and L’Orange as if the acquisition had been completed as of the beginning of the prior fiscal year, or October 1, 2016. The unaudited pro forma financial information is presented for informational purposes and is not indicative of the results of operations that would have been achieved if the acquisition and related borrowings had taken place on October 1, 2016, nor are they indicative of future results. The unaudited pro forma financial information for the three and nine-months ended June 30, 2018 includes Woodward’s results, including the post-acquisition results of L’Orange, since June 1, 2018, and the pre-acquisition results of L’Orange for those periods. The unaudited pro forma financial information for the three and nine-months ended June 30, 2017 combines Woodward’s results with the pre-acquisition results of L’Orange for those periods. Prior to the L’Orange acquisition by Woodward, L’Orange was a wholly owned subsidiary of Rolls-Royce and as such was not a standalone entity for financial reporting purposes. Accordingly, the historical operating results of L’Orange may not be indicative of the results that might have been achieved, historically or in the future, if L’Orange had been a standalone entity. The unaudited pro forma results for the three and nine-months ended June 30, 2018 and the three and nine-months ended June 30, 2017 follow:     Three-Months Ended Three-Months Ended  June 30, 2018 June 30, 2017  As reported Pro forma As reported Pro forma  Net sales $ 588,117 $ 639,665 $ 548,622 $ 619,485  Net earnings 49,117 60,488 53,626 53,071  Earnings per share:  Basic earnings per share $ 0.80 $ 0.98 $ 0.87 $ 0.87  Diluted earnings per share 0.77 0.95 0.85 0.84      Nine-Months Ended Nine-Months Ended  June 30, 2018 June 30, 2017  As reported Pro forma As reported Pro forma  Net sales $ 1,606,514 $ 1,830,515 $ 1,491,897 $ 1,684,071  Net earnings 105,866 129,191 138,279 108,190  Earnings per share:  Basic earnings per share $ 1.72 $ 2.10 $ 2.25 $ 1.76  Diluted earnings per share 1.66 2.03 2.18 1.70 The unaudited pro forma results for all periods presented include adjustments made to account for certain costs and transactions that would have been incurred had the acquisition be en completed as of October 1, 2016, including amortization charges for acquired intangible assets, eliminations of intercompany transactions, adjustments for acquisition transaction costs, adjustments for depreciation expense for property, plant, and equipment, and adjustments to interest expense. These adjustments are net of any applicable tax impact and were included to arrive at the pro forma results above.  L’Orange’s operating results have been included in the Company’s operating results for the periods subsequent to the completion of the acquisition on June 1, 2018. L’Orange contributed net sales of $24,878 for both the three and nine-months ended June 30, 2018 and a net loss of $1,215 for both the three and nine-months ended June 30, 2018. Woodward incurred transaction-related costs of $10,755 for the three -months ended June 30, 2018 and $12,036 for the nine-months ended June 30, 2018, which are included in “Selling, general and administrative expenses” in the Condensed Consolidated Statements of Earnings. These transaction-related costs consisted of the L’Orange A cquisition transaction and integration costs , warranty and indemnity insurance costs, and German real estate transfer tax costs. Woodward incurred acquisition financing related costs of $1,154 for the three and nine-months ended June 30, 2018, which are included in “Interest expense” in the Condensed Consolidated Statements of Earnings. Included in other expense (income), net for the three and nine-months ended June 30, 2018 was t he cost of $5,543 related to an at-the-money-forward option (the “Forward Option”) entered into by the Company on April 18, 2018. The Forward Option, which was entered into to manage the Company’s exposure to fluctuations in the Euro prior to the anticipated close of the L’Orange Agreement, was not exercised by the Company and expired on June 1, 2018.

Joint Venture

Joint Venture	9 Months Ended
	Jun. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Joint Venture	Note 5. Joint venture On January 4, 2016 , Woodward and General Electric Company (“GE”), acting through its GE Aviation business unit, consummated the formation of a strategic joint venture between Woodward and GE (the “JV”) to design, develop and source fuel systems for specified existing and all future GE commercial aircraft engines that produce thrust in excess of fifty thousand pounds. As part of the JV formation, Woodward contributed to the JV certain contractual rights and intellectual property applicable to the existing GE commercial aircraft engine programs within the scope of the JV. Woodward had no initial cost basis in the JV because Woodward had no cost basis in the contractual rights and intellectual property contributed to the JV. GE purchased from Woodward a 50% ownership interest in the JV for a $250,000 cash payment to Woodward. In addition, GE will pay contingent consideration to Woodward consisting of fifteen annual payments of $4,894 per year, which began on January 4, 2017, subject to certain claw-back conditions. During the three-months ended March 31, 2018, Woodward received its second annual payment of $4,894 , which was recorded as deferred income and included in Net cash provided by operating activities under the caption “Other” on the Condensed Consolidated Statement of Cash Flows . Neither Woodward nor GE contributed any tangible assets to the JV. Woodward determined that the JV formation was not the culmination of an earnings event because Woodward has significant performance obligations to support the future operations of the JV. Therefore, Woodward recorded as deferred income the $250,000 consideration received from GE in January of 2016 for its purchase of a 50% equity interest in the JV. The $250,000 deferred income will be recognized as an increase to net sales in proportion to revenue realized on sales of applicable fuel systems within the scope of the JV in a particular period as a percentage of total revenue expected to be realized by Woodward over the estimated remaining lives of the underlying commercial aircraft engine programs assigned to the JV. Unamortized deferred income recorded in connection with the JV formation included accrued liabilities of $6,414 as of June 30, 2018 and $6,451 as of September 30, 2017, and other liabilities of $237,724 as of June 30, 2018 and $236,896 as of September 30, 2017. Amortization of the deferred income recognized as an increase to sales was $1,564 for the three-months and $4,103 for the nine-months ended June 30, 2018, and $1,387 for the three-months and $4,515 for the nine-months ended June 30, 2017. Woodward and GE jointly manage the JV and any significant decisions and/or actions of the JV require the mutual consent of both parties. Neither Woodward nor GE has a controlling financial interest in the JV, but both Woodward and GE do have the ability to significantly influence the operating and financial decisions of the JV. Therefore, Woodward is accounting for its 50% ownership interest in the JV using the equity method of accounting. The JV is a related party to Woodward. Other income includes income of $738 for the three-months and $2,340 for the nine-months ended June 30, 2018, and a loss of $432 for the three-months and income of $634 for the nine-months ended June 30, 2017 related to Woodward’s equity interest in the earnings of the JV. Woodward received no cash distributions from the JV in the three and nine-months ended June 30, 2018, compared to a $2,500 cash distribution from the JV during the nine-months ended June 30, 2017, which was included in Net cash provided by operating activities under the caption “Other” on the Condensed Consolidated Statement of Cash Flows. Woodward’s net investment in the JV, which is included in other assets, was $8,612 as of June 30, 2018 and $6,272 as of September 30, 2017. Woodward’s net sales include $20,085 for the three-months and $50,137 for the nine-months ended June 30, 2018 of sales to the JV, compared to $18,645 for the three-months and $52,362 for the nine-months ended June 30, 2017. Woodward recorded a reduction to sales of $7,340 for the three-months and $19,670 for the nine-months ended June 30, 2018 related to royalties paid to the JV by Woodward on sales by Woodward directly to third party aftermarket customers, compared to $6,163 for the three-months and $17,240 for the nine-months ended June 30, 2017. The Condensed Consolidated Balance Sheets include “Accounts receivable” of $10,213 at June 30, 2018, and $8,554 at September 30, 2017, related to amounts the JV owed Woodward, and include “Accounts payable” of $4,261 at June 30, 2018, and $6,741 at September 30, 2017, related to amounts Woodward owed the JV.

Financial Instruments and Fair

Financial Instruments and Fair Value Measurements	9 Months Ended
	Jun. 30, 2018
Financial Instruments and Fair Value Measurments
Financial Instruments and Fair Value Measurements	Note 6. Financial instruments and fair value measurements Financial assets and liabilities recorded at fair value in the Condensed Consolidated Balance Sheets are categorized based upon a fair value hierarchy established by U.S. GAAP, which prioritizes the inputs used to measure fair value into the following levels: Level 1: Inputs based on quoted market prices in active markets for identical assets or liabilities at the measurement date. Level 2: Quoted prices included in Level 1, such as quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable and can be corroborated by observable market data. Level 3: Inputs that reflect management’s best estimates and assumptions of what market participants would use in pricing the asset or liability at the measurement date. The inputs are unobservable in the market and significant to the valuation of the instruments. The table below presents information about Woodward’s financial assets and liabilities that are measured at fair value on a recurring basis and indicates the fair value hierarchy of the valuation techniques Woodward utilized to determine such fair value.      At June 30, 2018 At September 30, 2017  Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total  Financial assets:  Cash $ 61,050 $ - $ - $ 61,050 $ 79,822 $ - $ - $ 79,822  Restricted investments in money market funds 2,521 - - 2,521 - - - -  Investments in reverse repurchase agreements 185 - - 185 1 - - 1  Investments in term deposits with foreign banks 50,643 - - 50,643 7,729 - - 7,729  Equity securities 19,500 - - 19,500 16,600 - - 16,600  Total financial assets $ 133,899 $ - $ - $ 133,899 $ 104,152 $ - $ - $ 104,152   Financial liabilities:  Cross currency interest rate swaps $ - $ 23,527 $ - $ 23,527 $ - $ - $ - $ -  Total financial liabilities $ - $ 23,527 $ - $ 23,527 $ - $ - $ - $ -  Restricted investments in money market funds: A subsidiary of Woodward is required to maintain a balance in escrow to secure the indemnification obligations of the subsidiary's previous parent company. As allowed by the escrow agreement, the cash held in escrow is invested in money market funds not insured by the Federal Deposit Insurance Corporation (“ FDIC ”) . The restriction on the use of the invested cash held in escrow will lapse once the underlying indemnification obligations are settled, which is expected to occur in the fourth quarter of fiscal year 2018. Woodward believes that the investments in money market funds are on deposit with creditworthy financial institutions and that the funds are highly liquid, although the ir use is restricted. The investments in money market funds are reported at fair value, with realized gains from interest income realized in earnings and are include d in “Cash and cash equivalents ” in the Condensed Consolidated Balance Sheets. The fair values of Woodward’s investments in money market funds are based on the quoted market prices for the net asset value of the various money market funds. Investments in reverse repurchase agreements: Woodward sometimes invests excess cash in reverse repurchase agreements. Under the terms of Woodward’s reverse repurchase agreements, Woodward purchases an interest in a pool of securities and is granted a security interest in those securities by the counterparty to the reverse repurchase agreement. At an agreed upon date, generally the next business day, the counterparty repurchases Woodward’s interest in the pool of securities at a price equal to what Woodward paid to the counterparty plus a rate of return determined daily per the terms of the reverse repurchase agreement. Woodward believes that the investments in these reverse repurchase agreements are with creditworthy financial institutions and that the funds invested are highly liquid. The investments in reverse repurchase agreements are reported at fair value, with realized gains from interest income recognized in earnings, and are included in “Cash and cash equivalents” in the Condensed Consolidated Balance Sheets. Since the investments are generally overnight, the carrying value is considered to be equal to the fair value as the amount is deemed to be a cash deposit with no risk of change in value as of the end of each fiscal quarter. Investments in term deposits with foreign banks: Woodward’s foreign subsidiaries sometimes invest excess cash in various highly liquid financial instruments that Woodward believes are with creditworthy financial institutions. Such investments are reported in “Cash and cash equivalents” at fair value, with realized gains from interest income recognized in earnings. The carrying value of Woodward’s investments in term deposits with foreign banks are considered equal to the fair value given the highly liquid nature of the investments. As of June 30, 2018, $3,769 of the term deposits with foreign banks are restricted in use as they are pledged collateral for short-term borrowings. The restriction will lapse when the related short-term borrowings are paid. Equity securities: Woodward holds marketable equity securities, through investments in various mutual funds, related to its deferred compensation program. Based on Woodward’s intentions regarding these instruments, marketable equity securities are classified as trading securities. The trading securities are reported at fair value, with realized gains and losses recognized in “Other expense (income), net” on the Condensed Consolidated Statements of Earnings. The trading securities are included in “Other assets” in the Condensed Consolidated Balance Sheets. The fair values of Woodward’s trading securities are based on the quoted market prices for the net asset value of the various mutual funds. Cross currency interest rate swaps: Woodward holds cross currency interest rate swaps, which are accounted for at fair value. The swaps are included in “Other liabilities” in the Condensed Consolidated Balance Sheets. The fair values of Woodward’s cross currency interest rate swaps are determined using a market approach that is based on observable inputs other than quoted m arket prices , including contract terms, interest rates, currency rates, and other market factors . Accounts receivable, accounts payable, and short-term borrowings are not remeasured to fair value, as the carrying cost of each approximates its respective fair value. The estimated fair values and carrying costs of other financial instruments that are not required to be remeasured at fair value in the Condensed Consolidated Balance Sheets were as follows:       At June 30, 2018 At September 30, 2017  Fair Value Hierarchy Level Estimated Fair Value Carrying Cost Estimated Fair Value Carrying Cost  Assets:  Notes receivable from municipalities 2 $ 14,523 $ 14,475 $ 15,848 $ 14,507  Investments in short-term time deposits 2 103 104 8,227 8,223  Liabilities:  Long-term debt 2 $ (1,203,413) $ (1,214,246) $ (592,317) $ (582,080)  In fiscal years 2014 and 2013, Woodward received long-term notes from municipalities within the states of Illinois and Colorado in connection with certain economic incentives related to Woodward’s development of a second campus in the greater-Rockford, Illinois area for its Aerospace segment and Woodward’s development of a new campus at its corporate headquarters in Fort Collins, Colorado. The fair value of the long-term notes was estimated based on a model that discounted future principal and interest payments received at an interest rate available to the Company at the end of the period for similarly rated municipal notes of similar maturity, which is a level 2 input as defined by the U.S. GAAP fair value hierarchy. The interest rates used to estimate the fair value of the long-term notes were 2.8% at June 30, 2018 and 2.6% at September 30, 2017. From time to time, certain of Woodward’s foreign subsidiaries will invest excess cash in short-term time deposits with a fixed maturity date of longer than three months but less than one year from the date of the deposit. Woodward believes that the investments are with creditworthy financial institutions. The fair value of the investments in short-term time deposits was estimated based on a model that discounted future principal and interest payments to be received at an interest rate available to the foreign subsidiary entering into the investment for similar short-term time deposits of similar maturity. This was determined to be a level 2 input as defined by the U.S. GAAP fair value hierarchy. The interest rates used to estimate the fair value of the short-term time deposits was 5.3% at September 30, 2017. There were no investments in short-term time deposits as of June 30, 2018. The fair value of long-term debt was estimated based on a model that discounted future principal and interest payments at interest rates available to the Company at the end of the period for similar debt of the same maturity, which is a level 2 input as defined by the U.S. GAAP fair value hierarchy. The weighted-average interest rates used to estimate the fair value of long-term debt were 3.5% at June 30, 2018 and 2.4% at September 30, 2017.

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	9 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities
Derivative Instruments and Hedging Activities	Note 7. Derivative instruments and hedging activities Woodward has exposures related to global market risks, including the effect of changes in interest rates, foreign currency exchange rates, changes in certain commodity prices and fluctuations in various producer indices. From time to time, Woodward enters into derivative instruments for risk management purposes only, including derivatives designated as accounting hedges and/or those utilized as economic hedges. Woodward uses interest rate related derivative instruments to manage its exposure to fluctuations of interest rates. Woodward does not enter into or issue derivatives for trading or speculative purposes. By using derivative and/or hedging instruments to manage its risk exposure, Woodward is subject, from time to time, to credit risk and market risk on those derivative instruments. Credit risk arises from the potential failure of the counterparty to perform under the terms of the derivative and/or hedging instrument. When the fair value of a derivative contract is positive, the counterparty owes Woodward, which creates credit risk for Woodward. Woodward mitigates this credit risk by entering into transactions with only counterparties that are believed to be creditworthy. Market risk arises from the potential adverse effects on the value of derivative and/or hedging instruments that result from a change in interest rates, commodity prices, or foreign currency exchange rates. Woodward minimizes this market risk by establishing and monitoring parameters that limit the types and degree of market risk that may be undertaken. Derivative instruments not designated or qualifying as hedging instruments On April 18, 2018 , the Company entered into a Forward Option at a cost of $5,543 whereby, on May 30, 2018 , the Company had the ability to exercise its option to purchase €490,000 on June 1, 2018 using U.S. dollars at a fixed exchange rate of 1.2432 . The Forward Option was entered into to manage the Company’s exposure to fluctuations in the Euro prior to the anticipated close of the L’Orange Agreement . The Company did not enter into the Forward Option for trading or speculative purposes. As the spot rate was below 1.2432 on May 30, 2018, the Company elected not to exercise the option and a loss of $5,543 was rec ognized on the Forward Option in “other (income) expense, net” in the Condensed Consolidated Statements of Earnings in the three and nine-months ended June 30, 2018 . The Forward Option expired on June 1, 2018. In M ay 2018, Woodward entered into cross currency interest rate swap agreement s that synthetically convert $167,420 of floating-rate debt under Woodward’s existing revolving credit agreement to Euro denominated floating-rate debt in conjunction with the L’Orange acquisition (the “Floating-Rate Cross Currency Swap”) . Also in May 2 018, Woodward entered into cross currency interest rate swap ag reements that synthetically convert an aggregate principal amount of $400,000 of fixed-rate debt associated with the 2018 Note Purchase Agreement (as defined at Note 14, Credit facilities short-term borrowings and long-term debt ) to Euro denominated fixed-rate debt (the “Fixed-Rate Cross Currency Swaps”). The cross currency interest rate swaps, which effectively reduce the interest rate on the underlying fixe d and floating-rate debt under the 2018 Notes and Woodward’s existing revolving credit agreement, respectively, is recorded as a reduction to “Interest expense” in Woodward’s Condensed Consolidated Statements of Earnings. Derivatives instruments in fair value hedging relationships Concurrent with the entry into the Floating-Rate Cross Currency Swap, a corresponding Euro denominated intercompany loan receivable with identical terms and notional amount as the underlying Euro denominated floating-rate debt , with a reciprocal cross currency interest rate swap, was entered into by Woodward Barbados Financing SRL (“Barbados”), a wholly owned subsidiary of Woodward, and is designated as a fair value hedge under the criteria prescribed in ASC Topic 815, Derivatives and Hedging (“ASC 815”) . The objective of the derivative instrument is to hedge against the foreign currency exchange risk attributable to the spot remeasurement of the Euro denominated intercompany loan. Only the change in the fair value related to the cross currency basis spread, or excluded component, of the derivative instrument is recognized in accumulated OCI. The remaining change in the fair value of the derivative instrument is recognized in foreign currency transaction gain or loss included in “Selling, general and administrative costs” in Woodward’s Condensed Consolidated Statements of Earnings. The change in the fair value of the derivative instrument in foreign currency transaction gain or loss offsets the change in the spot remeasurement of the intercompany Euro denominated loan. Hedge effectiveness is assessed based on the fair value changes of the derivative instrument, after excluding any fair value changes related to the cross curr ency basis spread. The initial cost of the cross currency basis spread is recorded in earnings each period through the swap accrual process. There is no credit-risk-related contingent featur es associated with the floating-rate cross currency interest rate swap. Derivative instruments in cash flow hedging relationships In conjunction with the entry into the Fixed -Rate Cross Currency Swap s, f ive corresponding intercompany loans receivable, with identical terms and amounts of ea ch tranche of the underlying aggregate principal amount of $400,000 of fixed- rate debt, and reciprocal cross currency interest rate swaps were entered into by Woodward Barbados , which are designated as cash flow hedges under the criteria prescribed in ASC 815. The objective of these derivative instruments is to hedge the risk of variability in cash flows attributable to the foreign currency exchange risk of cash flows for future principal and interest payments associated with the Euro denominated intercompany loans over a fifteen year period . Changes in the fair values of the der ivative instruments are recognized in accumulated OCI and reclassified to foreign currency transaction gain or loss included in “Selling, general and administrative costs” in Woodward’s Condensed Consolidated Statement s of Earnings. Reclassification s out of accumulated OCI of the change in fair value occur each reporting period based upon changes in the spot rate remeasurement of the Euro denominated intercompany loans, including associated interest. Hedge effectiveness is assessed based on the fair value changes of the derivative instruments and deemed to be highly effective in offsetting exposure to variability in foreign exchange rates. There are no credit-risk-related contingent features associated with the se cross currency interest rate swaps. In June 2013, in connection with Woodward’s expected refinancing of current maturities on its then existing long-term debt, Woodward entered into a treasury lock agreement with a notional amount of $25,000 that qualified as a cash flow hedge under ASC 815 . The objective o f this derivative instrument was to hedge the risk of variability in cash flows attributable to changes in the designated benchmark interest rate over a seven-year period related to the future principal and interest payments on a portion of anticipated future debt issuances. The treasury lock agreement was terminated in August 2013 and the resulting gain of $507 was recorded as a reduction to accumulated OCI and is being recognized as a decrease to interest expense over a seven-year period. Woodward expects to reclassify $72 of net unrecognized gains on terminated derivative instruments from accumulated OCI to earnings during the next twelve months. Derivatives instruments in net investment hedging relationships On September 23, 2016 , Woodward and Woodward International Holding B.V., a wholly owned subsidiary of Woodward organized under the laws of The Netherlands (the “BV Subsidiary”), each entered into a note purchase agreement (the “2016 Note Purchase Agreement”) relating to the sale by Woodward and the BV Subsidiary of an aggregate principal amount of €160,000 of senior unsecured notes in a series of private placement transactions. Woodward issued €40,000 aggregate principal amount of Woodward’s Series M Senior Notes due September 23, 2026 (the “Series M Notes”). Woodward designated the Series M Notes as a hedge of a foreign currency exposure of Woodward’s net investment in its Euro denominated functional currency subsidiaries. On the Series M Notes, included in foreign currency translation adjustments within total comprehensive (losses) earnings are net foreign exchange gains of $2,559 for the three-months an d $548 for the nine-months ended June 30, 2018, compared to net foreign exchange losses of $880 for the three-months and $3,030 for the nine-months ended June 30, 2017. In July 2016, Woodward designated an intercompany loan of 160,000 renminbi between two wholly owned subsidiaries as a hedge of a foreign currency exposure of the net investment of the borrower in the lender. Related to the intercompany loan, net unrealized foreign exchange losses of $283 for the three-months and net unrealized foreign exchange gains of $452 for the nine-months ended June 30, 2017 are included in foreign currency translation adjustments within total comprehensive (losses) earnings. The intercompany loan was repaid in July 2017. I mpact of derivative instruments designated as qualifying hedging instruments The following table discloses the impact of derivative instruments designated as qualifying hedging instruments on Woodward’s Condensed Consolidated Statements of Earnings:      Three-Months Ended June 30, 2018 Three-Months Ended June 30, 2017  Derivatives in: Location Amount of (Income) Expense Recognized in Earnings on Derivative Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings Amount of (Income) Expense Recognized in Earnings on Derivative Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings  Cross currency interest rate swap agreement designated as fair value hedges Selling, general and administrative expenses $ 1,467 $ 1,835 $ 1,467 $ - $ - $ -  Cross currency interest rate swap agreements designated as cash flow hedges Selling, general and administrative expenses 3,506 21,823 3,506 - - -  Treasury lock agreement designated as cash flow hedge Interest expense (18) - (18) (18) - (18)  $ 4,955 $ 23,658 $ 4,955 $ (18) $ - $ (18)       Nine-Months Ended June 30, 2018 Nine-Months Ended June 30, 2017  Derivatives in: Location Amount of (Income) Expense Recognized in Earnings on Derivative Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings Amount of (Income) Expense Recognized in Earnings on Derivative Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings  Cross currency interest rate swap agreement designated as fair value hedges Selling, general and administrative expenses $ 1,467 $ 1,835 $ 1,467 $ - $ - $ -  Cross currency interest rate swap agreements designated as cash flow hedges Selling, general and administrative expenses 3,506 21,823 3,506 - - -  Treasury lock agreement designated as cash flow hedge Interest expense (54) - (54) (54) - (54)  $ 4,919 $ 23,658 $ 4,919 $ (54) $ - $ (54) The remaining unrecognized gains and losses in Woodward’s Condensed Consolidated Balance Sheets associated with derivative instruments that were previously entered into by Woodward, which are classified in accumulated OCI were net losses of $18,5 21 as of June 30, 2018 and net gains of $218 as of September 30, 2017.

Supplemental Statements of Cash

Supplemental Statements of Cash Flows Information	9 Months Ended
	Jun. 30, 2018
Supplemental Statements of Cash Flows Information
Supplemental Statements of Cash Flows Information	 Note 8. Supplemental statement of cash flows information          Nine-Months Ended June 30,  2018 2017  Interest paid, net of amounts capitalized $ 24,966 $ 24,879  Income taxes paid 31,443 29,807  Income tax refunds received 1,760 158  Non-cash activities:  Purchases of property, plant and equipment on account 8,438 12,252  Common shares issued from treasury to settle employee liabilities - 1,767  Common shares issued from treasury to settle benefit obligations (Note 19) 14,741 14,014  Cashless exercise of stock options - 1,473  

Accounts Receivable

Accounts Receivable	9 Months Ended
	Jun. 30, 2018
Accounts Receivable Disclosure
Accounts Receivable	Note 9. Accounts receivable Almost all of Woodward’s sales are made on credit and result in accounts receivable, which are recorded at the amount invoiced and are generally not collateralized. In the normal course of business, not all accounts receivable are collected and, therefore, an allowance for uncollectible amounts is provided equal to the amount that Woodward believes ultimately will not be collected. In establishing the amount of the allowance related to the credit risk of accounts receivable, customer-specific information is considered related to delinquent accounts, past loss experience, bankruptcy filings, deterioration in the customer’s operating results or financial position, and current economic conditions. Accounts receivable losses are deducted from the allowance, and the related accounts receivable balances are written off when the receivables are deemed uncollectible. Recoveries of accounts receivable previously written off are recognized when received. In addition, an allowance associated with anticipated future sales returns is also established and is included in the allowance for uncollectible amounts. Consistent with common business practice in China, Woodward’s Chinese subsidiaries accept from Chinese customers, in settlement of certain customer accounts receivable, bankers’ acceptance notes issued by Chinese banks that are believed to be creditworthy. Bankers’ acceptance notes are financial instruments issued by Chinese financial institutions as part of financing arrangements between the financial institution and a customer of the financial institution. Bankers’ acceptance notes represent a commitment by the issuing financial institution to pay a certain amount of money at a specified future maturity date to the legal owner of the bankers’ acceptance note as of the maturity date. The maturity date of bankers’ acceptance notes varies, but it is Woodward’s policy to only accept bankers’ acceptance notes with maturity dates no more than 180 days from the date of Woodward’s receipt of such draft. The issuing financial institution is the obligor, not Woodward’s customers. Upon Woodward’s acceptance of a banker’s acceptance note from a customer, such customer has no further obligation to pay Woodward for the related accounts receivable balance. Woodward only accepts bankers’ acceptance notes issued by banks that are believed to be creditworthy and to which the credit risks associated with the bankers’ acceptance notes are believed to be minimal. The composition of Woodward’s accounts receivable at June 30, 2018 and September 30, 2017 follows:          June 30, September 30,  2018 2017  Accounts receivable from:  Customers $ 362,459 $ 367,715  Other (Chinese financial institutions) 27,319 38,243  Allowance for uncollectible customer amounts (3,668) (3,776)  $ 386,110 $ 402,182  

Inventories

Inventories	9 Months Ended
	Jun. 30, 2018
Inventories
Inventories	Note 10. Inventories     June 30, September 30,  2018 2017  Raw materials $ 86,677 $ 59,034  Work in progress 135,518 103,790  Component parts (1) 301,257 262,755  Finished goods 65,988 47,926  $ 589,440 $ 473,505 (1) Component parts include items that can be sold separately as finished goods or included in the manufacture of other products.

Property, Plant, and Equipment,

Property, Plant, and Equipment, Net	9 Months Ended
	Jun. 30, 2018
Property, Plant, and Equipment, Net
Property, Plant and Equipment, Net	Note 11. Property, plant, and equipment      June 30, September 30,  2018 2017  Land and land improvements $ 92,934 $ 88,326  Buildings and building improvements 564,366 514,453  Leasehold improvements 17,827 16,142  Machinery and production equipment 654,495 543,641  Computer equipment and software 123,705 124,723  Office furniture and equipment 27,567 24,308  Other 19,326 19,393  Construction in progress 87,620 111,910  1,587,840 1,442,896  Less accumulated depreciation (543,807) (520,853)  Property, plant, and equipment, net $ 1,044,033 $ 922,043  In the second quarter of fiscal year 2018, the Company announced its decision to relocate its Duarte, California operations to the Company’s newly renovated Drake Campus in Fort Collins, Colorado. The Company has identified assets held for sale with a carrying value of $8,853 at June 30, 2018, the majority of which are included in “Land and land improvements” and “Buildings and buildings improvements” which relate to the land, building and building improvements, and other assets at the Duarte facility. The assets held for sale are included in the Company’s Aerospace segment. The Company had no assets held for sale recorded as of September 30, 2017. The carrying value of the remaining assets at the Duarte facility was approximately $3,400 as of June 30, 2018, of which the Company has identified approximately $500 that is planned to be disposed of as a result of the relocation. The Company assessed whether the decision to relocate from its Duarte facility could indicate a potential impairment of the assets at the Duarte facility and concluded that the assets were not impaired as of June 30, 2018. Included in “Office furniture and equipment” and “Other” is $1,676 at June 30, 2018 and $1,653 at September 30, 2017, of gross assets acquired on capital leases, and accumulated depreciation included $1,081 at June 30, 2018 and $739 at September 30, 2017 of amortization associated with the capital lease assets. In fiscal year 2015, Woodward completed and placed into service a manufacturing and office building on a second campus in the greater-Rockford, Illinois area and has occupied the new facility for its Aerospace segment. This campus is intended to support Woodward’s expected growth in its Aerospace segment as a result of Woodward being awarded a substantial number of new system platforms, particularly on narrow-body aircraft. Included in “Construction in progress” are costs of $30,198 at June 30, 2018 and $49,347 at September 30, 2017 associated with new equipment purchases for the greater-Rockford, Illinois campus and costs of $2,618 at June 30, 2018 and $15,584 at September 30, 2017 associated with the renovation of the Drake Campus. For the three and nine-months ended June 30, 2018 and 2017, Woodward had depreciation expense as follows:      Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Depreciation expense $ 17,695 $ 14,141 $ 48,276 $ 40,259 For the three and nine-months ended June 30, 2018 and 2017, Woodward capitalized interest that would have otherwise been included in interest expense of the following:      Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Capitalized interest $ 607 $ 567 $ 1,841 $ 1,521 

Goodwill

Goodwill	9 Months Ended
	Jun. 30, 2018
Goodwill Disclosure
Goodwill	 Note 12. Goodwill      September 30, 2017 Additions Effects of Foreign Currency Translation June 30, 2018  Aerospace $ 455,423 $ - $ - $ 455,423  Industrial 101,122 269,433 948 371,503  Consolidated $ 556,545 $ 269,433 $ 948 $ 826,926 On June 1, 2018, Woodward completed the acquisition of L’Orange (see Note 4, Business acquisition ), which resulted in the recognition of $269,433 in goodwill in the Company’s Industrial segment. Woodward tests goodwill for impairment during the fourth quarter of each fiscal year, or at any time there is an indication goodwill is more-likely-than-not impaired, commonly referred to as triggering events. There have been no such triggering events during any of the periods presented and Woodward’s fourth quarter of fiscal year 2017 impairment test resulted in no impairment.

Intangible Assets, Net

Intangible Assets, Net	9 Months Ended
	Jun. 30, 2018
Intangible Assets, Net
Intangible Assets, Net	Note 13. Intangible assets, net     June 30, 2018 September 30, 2017  Gross Carrying Value Accumulated Amortization Net Carrying Amount Gross Carrying Value Accumulated Amortization Net Carrying Amount  Intangible assets with finite lives:  Customer relationships and contracts:  Aerospace $ 281,683 $ (162,692) $ 118,991 $ 282,225 $ (151,155) $ 131,070  Industrial 422,948 (35,198) 387,750 40,962 (34,407) 6,555  Total $ 704,631 $ (197,890) $ 506,741 $ 323,187 $ (185,562) $ 137,625   Intellectual property:  Aerospace $ - $ - $ - $ - $ - $ -  Industrial 19,480 (18,527) 953 19,422 (18,196) 1,226  Total $ 19,480 $ (18,527) $ 953 $ 19,422 $ (18,196) $ 1,226   Process technology:  Aerospace $ 76,372 $ (53,377) $ 22,995 $ 76,605 $ (49,124) $ 27,481  Industrial 95,217 (19,139) 76,078 22,950 (17,756) 5,194  Total $ 171,589 $ (72,516) $ 99,073 $ 99,555 $ (66,880) $ 32,675   Backlog:  Aerospace $ - $ - $ - $ - $ - $ -  Industrial 40,885 (4,579) 36,306 - - -  Total $ 40,885 $ (4,579) $ 36,306 $ - $ - $ -   Other intangibles:  Aerospace $ - $ - $ - $ - $ - $ -  Industrial 1,651 (1,211) 440 1,312 (956) 356  Total $ 1,651 $ (1,211) $ 440 $ 1,312 $ (956) $ 356   Intangible asset with indefinite life:  Tradename:  Aerospace $ - $ - $ - $ - $ - $ -  Industrial 64,248 - 64,248 - - -  Total $ 64,248 $ - $ 64,248 $ - $ - $ -   Total intangibles:  Aerospace $ 358,055 $ (216,069) $ 141,986 $ 358,830 $ (200,279) $ 158,551  Industrial 644,429 (78,654) 565,775 84,646 (71,315) 13,331  Consolidated Total $ 1,002,484 $ (294,723) $ 707,761 $ 443,476 $ (271,594) $ 171,882             For the three and nine-months ended June 30, 2018 and 2017, Woodward recorded amortization expense associated with intangibles of the following:      Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Amortization expense $ 11,360 $ 6,439 $ 23,861 $ 19,328  Future amortization expense associated with intangibles is expected to be:             Year Ending September 30:  2018 (remaining) $ 20,097  2019 58,284  2020 42,879  2021 39,994  2022 38,131  Thereafter 444,128  $ 643,513  

Credit Facilities, Short-term B

Credit Facilities, Short-term Borrowings and Long-term Debt	9 Months Ended
	Jun. 30, 2018
Debt Disclosure
Credit Facilities, Short-term Borrowings and Long-term Debt	Note 14. Credit facilities, short-term borrowings and long-term debt Revolving credit facility Woodward maintains a $1,000,000 revolving credit facility established under a revolving credit agreement among Woodward, a syndicate of lenders and Wells Fargo Bank, National Association, as administrative agent (the “Revolving Credit Agreement”). The Revolving Credit Agreement provides for the option to increase available borrowings up to $1,200,000 , subject to lenders’ participation. Borrowings under the Revolving Credit Agreement can be made by Woodward and certain of its foreign subsidiaries in U.S dollars or in foreign currencies other than the U.S. dollar and generally bear interest at LIBOR plus 0.85% to 1.65% . The Revolving Credit Agreement matures in April 2020 . Under the Revolving Credit Agreement, there were $374,574 in principal amount of borrowings outstanding as of June 30, 2018, at an effective interest rate of 2 . 87 % , and $32,600 in principal amount of borrowings outstanding as of September 30, 2017, at an effective interest rate of 2.29% . As of June 30, 2018, $140,231 of the borrowings under the Revolving Credit Agreement were classified as short-term borrowings based on Woodward’s intent and ability to pay this amount in the next twelve months. As of September 30, 2017, all of the borrowings under the Revolving Credit Agreement were classified as short-term borrowings. Short-term borrowings Woodward has other foreign lines of credit and foreign overdraft facilities at various financial institutions, which are generally reviewed annually for renewal and are subject to the usual terms and conditions applied by the financial institutions. Pursuant to the terms of the related facility agreements, Woodward’s foreign performance guarantee facilities are limited in use to providing performance guarantees to third parties. As of June 30, 2018, there were borrowings outstanding of $3,769 on Woodward’s foreign lines of credit and foreign overdraft facilities . There were no borrowings outstanding as of September 30, 2017 . Long-term debt     June 30, September 30,  2018 2017  Long-term portion of revolving credit facility - Floating rate (LIBOR plus 0.85% - 1.65%), due April 2020; unsecured $ 234,343 $ -  Series D notes – 6.39%, due October 2018; unsecured 100,000 100,000  Series F notes – 8.24%, due April 2019; unsecured 43,000 43,000  Series G notes – 3.42%, due November 2020; unsecured 50,000 50,000  Series H notes – 4.03%, due November 2023; unsecured 25,000 25,000  Series I notes – 4.18%, due November 2025; unsecured 25,000 25,000  Series J notes – Floating rate (LIBOR plus 1.25%), due November 2020; unsecured 50,000 50,000  Series K notes – 4.03%, due November 2023; unsecured 50,000 50,000  Series L notes – 4.18%, due November 2025; unsecured 50,000 50,000  Series M notes – 1.12% due September 2026; unsecured 46,726 47,270  Series N notes – 1.31% due September 2028; unsecured 89,947 90,995  Series O notes – 1.57% due September 2031; unsecured 50,230 50,815  Series P notes – 4.27% due May 2025; unsecured 85,000 -  Series Q notes – 4.35% due May 2027; unsecured 85,000 -  Series R notes – 4.41% due May 2029; unsecured 75,000 -  Series S notes – 4.46% due May 2030; unsecured 75,000 -  Series T notes – 4.61% due May 2033; unsecured 80,000 -  Unamortized debt issuance costs (2,850) (1,794)  Total long-term debt 1,211,396 580,286  Less: Current portion of long-term debt - -  Long-term debt, less current portion $ 1,211,396 $ 580,286 The Notes In October 2008 , Woodward entered into a note purchase agreement relating to the Series D Notes. In April 2009 , Woodward entered into a note purchase agreement relating to the Series F Notes. The Series D Notes mature and are payable in October 2018, and the Series F Notes mature and are payable in April 2019. As of June 30, 2018, the entire amount of debt under the Series D Notes and Series F Notes has been classified as long-term based on Woodward’s intent and ability to refinance this debt prior to maturity using cash proceeds from its existing revolving credit facility which, in turn, is expected to be repaid beyond the next twelve months. On October 1, 2013 , Woodward entered into a note purchase agreement relating to the sale by Woodward of an aggregate principal amount of $250,000 of its senior unsecured notes in a series of private placement transactions. Woodward issued the Series G, H and I Notes (the “First Closing Notes”) on October 1, 2013 . Woodward issued the Series J, K and L Notes (the “Second Closing Notes”) on November 15, 2013 . On September 23, 2016 , Woodward and the BV Subsidiary each entered into note purchase agreements relating to the sale by Woodward and the BV Subsidiary of an aggregate principal amount of €160,000 of senior unsecured notes in a series of private placement transactions. Woodward issued €40,000 Series M Notes. The BV Subsidiary issued (a) €77,000 aggregate principal amount of the BV Subsidiary’s Series N Senior Notes (the “Series N Notes”) and (b) €43,000 aggregate principal amount of the BV Subsidiary’s Series O Senior Notes (the “Series O Notes” and together with the Series M Notes and the Series N Notes, the “2016 Notes,”) and, together with the Series D Notes, the Series F Notes, the First Closing Notes and the Second Closing Notes, collectively, the “Existing Notes”). On May 31, 2018 , Woodward entered into a note purchase agreement (the “2018 Note Purchase Agreement”) relating to the sale by Woodward of an aggregate principal amount of $400,000 of senior unsecured notes comprised of (a) $85,000 aggregate principal amount of its Series P Senior Notes due May 30, 2025 and bearing interest at a rate of 4.27% per annum (the “Series P Notes”), (b) $85,000 aggregate principal amount of its Series Q Senior Notes due May 30, 2027 and bearing interest at a rate of 4.35% per annum (the “Series Q Notes”), (c) $75,000 aggregate principal amount of its Series R Senior Notes due May 30, 2029 and bearing interest at a rate of 4.41% per annum (the “Series R Notes”), (d) $75,000 aggregate principal amount of its Series S Senior Notes due May 30, 2030 and bearing interest at a rate of 4.46% per annum (the “Series S Notes”), and (e) $80,000 aggregate principal amount of its Series T Senior Notes due May 30, 2033 and bearing interest at a rate of 4.61% per annum (the “Series T Notes”; together with the Series P Notes, the Series Q Notes, the Series R Notes, and the Series S Notes, the “2018 Notes” and; together with the Existing Notes, the “Notes”), in a series of private placement transactions. In connection with the issuance of the 2018 Notes, the Company entered into cross currency swap transactions in respect of each tranche of the 2018 Notes, which effectively reduced the interest rates on the Series P Notes to 1.82% per annum, the Series Q Notes to 2.15% per annum, the Series R Notes to 2.42% per annum, the Series S Notes to 2.55% per annum and the Series T Notes to 2.90% per annum (see Note 7, Derivative instruments and hedging activities ). The Company’s obligations under the 2018 Note Purchase Agreement and the 2018 Notes will rank at all times at least pari passu, without preference or priority, with the Existing Notes and the Company’s outstanding debt under the Revolving Credit Agreement. The 2018 Note Purchase Agreement contains restrictive covenants customary for such financings, including, among other things, covenants that place limits on the Company’s ability to incur liens on assets, incur additional debt (including a leverage test), transfer or sell the Company’s assets, merge or consolidate with other persons and enter into material transactions with affiliates. The 2018 Note Purchase Agreement also contains financial covenants which require Woodward to maintain a specified leverage ratio of net indebtedness to consolidated earnings before interest, taxes, depreciation and amortization and a minimum consolidated net worth, which are, in each case, consistent with financial covenants set forth in the Existing Notes. The 2018 Note Purchase Agreement also contains events of default customary for such financings, the occurrence of which would permit the holders of the 2018 Notes to accelerate the amounts due thereunder. In the event of default, the interest rate accruing on each of the 2018 Notes would increase by 2.00% . The Company’s payment and performance obligations under the 2018 Note Purchase Agreement and the 2018 Notes, including without limitation the obligations for payment of all principal, interest and any applicable prepayment compensation amount on the 2018 Notes, are guaranteed by Woodward FST, Inc., MPC Products Corporation and Woodward HRT, Inc., each a wholly owned subsidiary of the Company. The Company, at its option, is permitted at any time to prepay all or any part of the then-outstanding principal amount of any series of the 2018 Notes at 100% of the principal amount of the series of 2018 Notes to be prepaid (but, in the case of partial prepayment, not less than $1,000 ), together with interest accrued on such amount to be prepaid to the date of prepayment, plus any applicable prepayment compensation amount and, if any holder of the Notes has entered into a cross currency swap agreement in respect of the note held by such holder, certain losses (if any) incurred by such holder under such cross currency swap agreement as a result of such prepayment. Interest on the Series D Notes, the First Closing Notes, and the Series K and L Notes is payable semi-annually on April 1 and October 1 of each year until all principal is paid. Interest on the Series F Notes is payable semi-annually on April 15 and October 15 of each year until all principal is paid. Interest on the 2016 Notes is payable semi-annually on March 23 and September 23 of each year, until all principal is paid. Interest on the Series J Notes is payable quarterly on January 1, April 1, July 1 and October 1 of each year until all principal is paid. As of June 30, 2018, the Series J Notes bore interest at an effective rate of 3.58% . Commencing on November 30, 2018, interest on the 2018 Notes is payable semi-annually on May 30 and November 30 of each year until all principal is paid. Debt Issuance Costs Unamortized debt issuance costs associated with the Notes of $2,850 as of June 30, 2018 and $1,794 as of September 30, 2017 were recorded as a reduction in “Long-term debt, less current portion” in the Condensed Consolidated Balance Sheets. Unamortized debt issuance costs of $1,603 associated with the Revolving Credit Agreement as of June 30, 2018 and $2,259 as of September 30, 2017 were recorded as “Other assets” in the Condensed Consolidated Balance Sheets. Amortization of debt issuance costs is included in operating activities in the Condensed Consolidated Statements of Cash Flows.

Accrued Liabilities

Accrued Liabilities	9 Months Ended
	Jun. 30, 2018
Accrued Liabilities
Accrued Liabilities	Note 15. Accrued liabilities      June 30, September 30,  2018 2017  Salaries and other member benefits $ 63,743 $ 91,285  Warranties 19,802 13,597  Interest payable 8,856 9,626  Current portion of acquired performance obligations and unfavorable contracts (1) 1,627 1,627  Accrued retirement benefits 3,529 2,413  Current portion of loss reserve on contractual lease commitments 1,245 1,343  Current portion of deferred income from JV formation (Note 5) 6,414 6,451  Deferred revenues 2,689 4,625  Restructuring charges 16,574 -  Taxes, other than income 18,012 14,401  Other 19,720 9,704  $ 162,211 $ 155,072  (1) In connection with Woodward’s acquisition of GE Aviation Systems LLC’s (the “Seller”) thrust reverser actuation systems business located in Duarte, California (the “Duarte Acquisition”) in fiscal year 2013, Woodward assumed current and long-term performance obligations for contractual commitments that are expected to result in future economic losses. In addition, Woodward assumed current and long-term performance obligations for services to be provided to the Seller and others, partially offset by current and long-term assets related to contractual payments due from the Seller. The current portion of both obligations is included in “Accrued liabilities” in the Condensed Consolidated Balance Sheets .  Warranties Provisions of Woodward’s sales agreements include product warranties customary to these types of agreements. Accruals are established for specifically identified warranty issues that are probable to result in future costs. Warranty costs are accrued on a non-specific basis whenever past experience indicates a normal and predictable pattern exists. Changes in accrued product warranties were as follows:      Three-Months Ended June 30, Nine-Months Ended June 30,  2018 2017 2018 2017  Warranties, beginning of period $ 13,283 $ 15,041 $ 13,597 $ 15,993  Increases due to acquisition of L'Orange 6,045 - 6,045 -  Expense, net of recoveries 2,696 2,746 3,000 6,808  Reductions for settling warranties (1,838) (3,746) (2,670) (8,528)  Foreign currency exchange rate changes (384) 257 (170) 25  Warranties, end of period $ 19,802 $ 14,298 $ 19,802 $ 14,298    Loss reserve on contractual lease commitments In connection with the construction of a new production facility in Niles, Illinois, Woodward vacated a leased facility in Skokie, Illinois and recognized a loss reserve against the estimated remaining contractual lease commitments, less anticipated sublease income. Changes in the loss reserve were as follows:      Three-Months Ended June 30, Nine-Months Ended June 30,  2018 2017 2018 2017  Loss reserve on contractual lease commitments, beginning of period $ 4,478 $ 8,395 $ 5,270 $ 9,242  Payments, net of sublease income (267) (382) (1,059) (1,229)  Non-cash adjustments - (2,322) - (2,322)  Loss reserve on contractual lease commitments, end of period $ 4,211 $ 5,691 $ 4,211 $ 5,691 Other liabilities included $2,966 and $3,927 of accrued loss reserve on contractual lease commitments as of June 30, 2018 and September 30, 2017, respectively, which are not expected to be settled or paid within twelve months of the respective balance sheet date. Restructuring charges In the second quarter of fiscal year 2018, the Company recorded restructuring charges totaling $17,013 , the majority of which relate to the Company’s decision to relocate its Duarte, California operations to the Company’s newly renovated Drake Campus in Fort Collins, Colorado. The Duarte facility, which manufactures thrust reverser actuation systems, is part of the Company’s Aerospace segment. The remaining restructuring charges recognized during the first nine months of fiscal year 2018 consist of workforce management costs related to aligning the Company’s industrial turbomachinery business, which is part of the Company’s Industrial segment, with current market conditions. All of the restructuring charges recorded in the second quarter and first nine months of fiscal year 2018 were recorded as nonsegment expenses and are expected to be paid within one year of the balance sheet date. The summary of activity in accrued restructuring charges during the nine-months ended June 30, 2018 is as follows:    Period Activity  Balances as of October 1, 2017 Charges (gains) Cash receipts (payments) Non-cash activity Balances as of June 30, 2018  Workforce management costs associated with:  Duarte plant relocation $ - $ 12,504 $ - $ - $ 12,504  Industrial turbomachinery business realignment - 4,509 (439) - 4,070  Total $ - $ 17,013 $ (439) $ - $ 16,574 In addition to the restructuring charges recognized in the first nine months of fiscal year 2018, the Company anticipates incurring additional costs associated with the relocation from Duarte to the Drake campus such as expenses associated with equipment relocation, employee training, accelerated depreciation, and increased labor expenses over the coming year. The Company anticipates these additional expenses will vary by quarter, but are expected to be approximately $12,000 in total. Although the Company plans to sell the Duarte facility’s land, building and building improvements, it is currently still occupying the Duarte facility and has recorded these as assets held for sale as of June 30, 2018 (see Note 11, Property, plant and equipment ).

Other Liabilities

Other Liabilities	9 Months Ended
	Jun. 30, 2018
Other Liabilities
Other Liabilities	Note 16. Other liabilities      June 30, September 30,  2018 2017  Net accrued retirement benefits, less amounts recognized within accrued liabilities $ 92,075 $ 52,211  Noncurrent portion of deferred income from JV formation (1) 237,724 236,896  Total unrecognized tax benefits 9,910 20,949  Noncurrent income taxes payable (2) 23,920 -  Acquired unfavorable contracts (3) 591 2,076  Deferred economic incentives (4) 13,422 14,574  Loss reserve on contractual lease commitments (5) 2,966 3,927  Cross currency swap derivative liability (6) 23,527 -  Other 12,363 14,165  $ 416,498 $ 344,798  (1) See Note 5, Joint venture for more information on the deferred income from JV formation. (2) See Note 18, Income taxes for more information on the noncurrent income taxes payable. (3) In connection with the Duarte Acquisition in fiscal year 2013, Woodward assumed current and long-term performance obligations for contractual commitments that are expected to result in future economic losses. The long-term portion of the acquired unfavorable contracts is included in Other liabilities. (4) Woodward receives certain economic incentives from various state and local authorities related to capital expansion projects. Such amounts are initially recorded as deferred credits and are being recognized as a reduction to pre-tax expense over the economic lives of the related capital expansion projects. (5) See Note 15, Accrued liabilities for more information on the loss reserve on contractual lease commitments . (6) See Note 6 , Financial instruments and fair value measurements for more information on the cross currency swap derivative liability .

Other (Income) Expense, Net

Other (Income) Expense, Net	9 Months Ended
	Jun. 30, 2018
Other (Income) Expense, Net
Other (Income) Expense, Net	Note 17. Other expense (income), net       Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Equity interest in the (earnings) losses of the JV (Note 5) $ (738) $ 432 $ (2,340) $ (634)  Net (gain) loss on sales of assets 50 64 (404) (3,598)  Rent income (28) (53) (99) (196)  Net gain on investments in deferred compensation program (257) (523) (957) (1,252)  Loss on forward option derivative instrument (Note 7) 5,543 - 5,543 -  Other (373) (370) (731) (673)  $ 4,197 $ (450) $ 1,012 $ (6,353)

Income Taxes

Income Taxes	9 Months Ended
	Jun. 30, 2018
Income Taxes
Income Taxes	Note 18. Income taxes On December 22, 2017, the United States (“U.S.”) enacted significant changes to the U.S. tax law following the passage and signing of the Tax Act. The Tax Act included significant changes to existing tax law, including a permanent reduction to the U.S. federal corporate income tax rate from 35% to 21% , a one-time repatriation tax on deferred foreign income (“Transition Tax”), deductions, credits and business-related exclusions. U.S. GAAP requires that the interim period tax provision be determined as follows: · At the end of each quarter, Woodward estimates the tax that will be provided for the current fiscal year stated as a percentage of estimated “ordinary income.” The term ordinary income refers to earnings from continuing operations before income taxes, excluding significant unusual or infrequently occurring items.  The estimated annual effective rate is applied to the year-to-date ordinary income at the end of each quarter to compute the estimated year-to-date tax applicable to ordinary income. The tax expense or benefit related to ordinary income in each quarter is the difference between the most recent year-to-date and the prior quarter year-to-date computations.  · The tax effects of significant unusual or infrequently occurring items are recognized as discrete items in the interim period in which the events occur. The impact of changes in tax laws or rates on deferred tax amounts, the effects of changes in judgment about beginning of the year valuation allowances, and changes in tax reserves resulting from the finalization of tax audits or reviews are examples of significant unusual or infrequently occurring items that are recognized as discrete items in the interim period in which the event occurs. Enactment of the Tax Act during December 2017 resulted in a provisional discrete net charge to Woodward’s income tax expense in the amount of $14,778 , which was recorded in the first quarter of fiscal year 2018. The discrete net charge was increased by $3,671 in the three months ended June 30, 2018 resulting in a net discrete impact from the Tax Act of $18,449 in the nine-months ended June 30, 2018. The determination of the annual effective tax rate is based upon a number of significant estimates and judgments, including the estimated annual pretax income of Woodward in each tax jurisdiction in which it operates, and the development of tax planning strategies during the year. In addition, as a global commercial enterprise, Woodward’s tax expense can be impacted by changes in tax rates or laws, the finalization of tax audits and reviews, changes in the estimate of the amount of undistributed foreign earnings that Woodward considers indefinitely reinvested, and other factors that cannot be predicted with certainty. As such, there can be significant volatility in interim tax provisions. The permanent reduction to the U.S. federal corporate income tax rate from 35 % to 21 % is effective January 1, 2018 (the “Effective Date”). When a U.S. federal tax rate change occurs during a taxpayer’s fiscal year, taxpayers are required to compute a weighted daily average rate for the fiscal year of enactment. As a result of the Tax Act, Woodward has calculated a U.S. federal statutory corporate income tax rate of 24.5% for the fiscal year ending September 30, 2018 and applied this rate in computing the income tax provision for the three and nine-months ended June 30, 2018. The U.S. federal statutory corporate income tax rate of 24.5% is the weighted daily average rate between the pre-enactment U.S. federal statutory tax rate of 35% applicable to Woodward’s 2018 fiscal year prior to the Effective Date and the post-enactment U.S. federal statutory tax rate of 21% applicable to the 2018 fiscal year after the Effective Date. Woodward expects the U.S. federal statutory rate to be 21% for fiscal years beginning after September 30, 2018. On December 22, 2017, the SEC issued SAB 118. SAB 118 expresses views of the SEC regarding ASC 740 in the reporting period that includes the enactment date of the Tax Act. Subsequent to the issuance of SAB 118, in March 2018, the FASB issued ASU 2018-05, which formally amended ASC 740 for the guidance previously provided by SAB 118. The SEC staff issuing SAB 118 (the “Staff”) recognized that a registrant’s review of certain income tax effects of the Tax Act may be incomplete at the time financial statements are issued for the reporting period that includes the enactment date, including interim periods therein. The Staff’s view of the enactment of the Tax Act has been developed considering the principles of ASC 805 which addresses the accounting for certain items in a business combination for which the accounting is incomplete upon issuance of the financial statements that include the reporting period in which the business combination occurs. Specifically, the Staff provides that the accounting guidance in ASC Topic 805 may be analogized to the accounting for impacts of the Tax Act. If a company does not have the necessary information available, prepared or analyzed for certain income tax effects of the Tax Act, SAB 118 allows a company to report provisional numbers and adjust those amounts during the measurement period not to extend beyond one year. For the three and nine-months ended June 30, 2018, Woodward has recorded all known and estimable impacts of the Tax Act that are effective for fiscal year 2018. Future adjustments to the provisional numbers will be recorded as discrete adjustments to income tax expense in the period in which those adjustments become estimable and/or are finalized. The Company expects to finalize its assessment of the income tax effects of the Tax Act in the fourth quarter of fiscal year 2018. Accordingly, Woodward’s income tax provision for the three and nine-months ended June 30, 2018 reflects (i) the current year impacts of the Tax Act on the estimated annual effective tax rate and (ii) discrete items, if any, resulting directly from the enactment of the Tax Act based on the information available, prepared, or analyzed (including computations) in reasonable detail. The discrete net charge was increased in the third quarter of fiscal year 2018 as a result of an IRS audit for fiscal years 2014, 2015 and 2016, which concluded during the quarter and resulted in an increase to the beginning fiscal year 2018 net deferred tax assets recorded by Wo o dward . The application of the permanent reduction of the U.S. federal corporate income tax rate (enacted by the Tax Act) to the increase in the net deferred tax assets resulted in a net discrete charge of $3,671 recorded in the three months ended June 30, 2018.     Nine-Months Ended  June 30, 2018  Transition tax (provisional) $ 26,000  Net impact on U.S. deferred tax assets and liabilities (provisional) (16,260)  Net changes in deferred tax liability associated with anticipated repatriation taxes (provisional) 5,038  Total provisional discrete impact of the enactment of the Tax Act 14,778  Discrete impact recorded in the three months ended June 30, 2018 3,671  Net discrete impacts of the enactment of the Tax Act $ 18,449 Woodward determined that the Transition Tax is provisional because various components of the computation are unknown as of June 30, 2018, including the following significant items: the exchange rates for fiscal year 2018, the actual aggregate foreign cash position and the earnings and profits of the foreign entities as of September 30, 2018, the interpretation and identification of cash positions as of September 30, 2018, and incomplete computations of accumulated earnings and profits balances as of November 2, 2017 and December 31, 2017. Consistent with provisions allowed under the Tax Act, the $26,000 estimated Transition Tax liability will be paid over an eight year period beginning in fiscal year 2019. As of June 30, 2018, the current portion of the estimated Transition Tax liability in the amount of $2,080 has been included in “Income taxes receivable, net,” and the noncurrent portion in the amount of $23,920 has been included in “Other liabilities” in the Condensed Consolidated Balance Sheets. Woodward also determined that the impact of the U.S. federal corporate income tax rate change on the U.S. deferred tax assets and liabilities is provisional because the number cannot be calculated until the underlying timing differences are known rather than estimated. Given the Tax Act’s significant changes and potential opportunities to repatriate cash tax free, Woodward is in the process of evaluating its current indefinite assertions. As a result of the Tax Act, Woodward now expects to repatriate certain earnings which will be subject to withholding taxes. These additional withholding taxes were recorded as an additional deferred tax liability associated with the basis difference in such jurisdictions. The uncertainty related to the taxation of such withholding taxes on distributions under the Tax Act and finalization of the cash repatriation plan makes the deferred tax liability a provisional amount. Woodward continues to review the anticipated impacts of the global intangible low taxed income (“GILTI”) and base erosion anti-abuse tax (“BEAT”) on Woodward, which are not effective until fiscal year 2019. Woodward has not recorded any impact associated with either GILTI or BEAT in the tax rate as of the third quarter of fiscal year 2018. Within the calculation of Woodward’s annual effective tax rate Woodward has used assumptions and estimates that may change as a result of future guidance, interpretation, and rule-making from the Internal Revenue Service, the SEC, and the FASB and/or various other taxing jurisdictions. For example, Woodward anticipates that the state jurisdictions will continue to determine and announce their conformity to the Tax Act which could have an impact on the annual effective tax rate. The following table sets forth the tax expense and the effective tax rate for Woodward’s earnings before income taxes:      Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Earnings before income taxes $ 54,417 $ 68,687 $ 140,551 $ 165,982  Income tax expense 5,300 15,061 34,685 27,703  Effective tax rate 9.7% 21.9% 24.7% 16.7% The decrease in the year-over-year effective tax rate for the three-months ended June 30, 2018 is primarily attributable to the benefits of the current year effect of the U.S. federal corporate tax rate reduction in connection with the enactment of the Tax Act on the estimated annual effective tax rate, a higher favorable adjustment for the net excess income tax benefits from stock-based compensation compared to the prior fiscal year third quarter , and higher favorable resolutions of tax matters in the current quarter compared to the same quarter last year . This combined benefit was partially offset by the resolution of the fiscal year 2014, 2015, and 2016 IRS audits in the third quarter of fiscal year 2018, which resulted in an additional provisional discrete income tax expense of $3,671 recorded in the quarter in connection with the Tax Act. The increase in the effective tax rate for the nine-months ended June 30, 2018 compared to the nine-months ended June 30, 2017 is primarily attributable to the $18,449 net unfavorable impact in the period resulting from the enactment of the Tax Act. Additionally, the benefit from the repatriation to the U.S. of certain net foreign profits and losses was higher in the nine-months ended June 30, 2017 compared to the nine-months ended June 30, 2018. These increases were partially offset by higher favorable resolutions of tax matters in the first nine months of fiscal year 2018 compared to the first nine months of fiscal year 2017, as well as the current year effect of the U.S. federal corporate tax rate reduction in connection with the enactment of the Tax Act on the estimated annual effective tax rate. Gross unrecognized tax benefits were $9,710 as of June 30, 2018, and $20,132 as of September 30, 2017. Included in the balance of unrecognized tax benefits were $2,741 as of June 30, 2018 and $9,677 as of September 30, 2017 of tax benefits that, if recognized, would affect the effective tax rate. At this time, Woodward estimates that it is reasonably possible that the liability for unrecognized tax benefits will decrease by as much as $84 in the next twelve months due to the completion of reviews by tax authorities, lapses of statutes, and the settlement of tax positions. Woodward accrues for potential interest and penalties related to unrecognized tax benefits and all other interest and penalties related to tax payments in tax expense. Woodward had accrued gross interest and penalties of $255 as of June 30, 2018 and $1,123 as of September 30, 2017. Woodward’s tax returns are subject to audits by U.S. federal, state, and foreign tax authorities, and these audits are at various stages of completion at any given time. Reviews of tax matters by authorities and lapses of the applicable statutes of limitations may result in changes to tax expense. Fiscal years remaining open to examination in significant foreign jurisdictions include 2008 and thereafter. Woodward’s fiscal years remaining open to examination for U.S. Federal income taxes include fiscal years 2017 and thereafter. Woodward has concluded U.S. federal income tax examinations through fiscal year 2016. Woodward is generally subject to U.S. state income tax examinations for fiscal years 2013 and the periods thereafter.

Retirement Benefits

Retirement Benefits	9 Months Ended
	Jun. 30, 2018
Retirement Benefits - General
Retirement Benefits	Note 19. Retirement benefits Woodward provides various retirement benefits to eligible members of the Company, including contributions to various defined contribution plans, pension benefits associated with defined benefit plans, postretirement medical benefits and postretirement life insurance benefits. Eligibility requirements and benefit levels vary depending on employee location. Defined contribution plans Most of the Company’s U.S. employees are eligible to participate in the U.S. defined contribution plan. The U.S. defined contribution plan allows employees to defer part of their annual income for income tax purposes into their personal 401(k) accounts. The Company makes matching contributions to eligible employee accounts, which are also deferred for employee personal income tax purposes. Certain foreign employees are also eligible to participate in similar foreign plans. Most of Woodward’s U.S. employees with at least two years of service receive an annual contribution of Woodward stock, equal to 5% of their eligible prior year wages, to their personal Woodward Retirement Savings Plan accounts. Woodward fulfilled its annual Woodward stock contribution obligation using shares held in treasury stock by issuing a total of 202 shares of common stock for a value of $14,741 in the second quarter of fiscal year 2018, and 199 total shares of common stock for a value of $14,014 in the second quarter of fiscal year 2017. The amount of expense associated with defined contribution plans was as follows:      Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Company costs $ 8,262 $ 8,039 $ 24,858 $ 23,790  Defined benefit plans Woodward has defined benefit plans that provide pension benefits for certain retired employees in the United States, the United Kingdom, Japan and, as a result of the acquisition of L’Orange, Germany. Woodward also provides other postretirement benefits to its employees including postretirement medical benefits and life insurance benefits. Postretirement medical benefits are provided to certain current and retired employees and their covered dependents and beneficiaries in the United States and the United Kingdom. Life insurance benefits are provided to certain retirees in the United States under frozen plans, which are no longer available to current employees. A September 30 measurement date is utilized to value plan assets and obligations for all of Woodward’s defined benefit pension and other postretirement benefit plans. In connection with the acquisition of L’Orange on June 1, 2018, Woodward assumed the unfunded defined benefit pension obligations of the L’Orange defined benefit pension plans (the “L’Orange Pension Plans”). Woodward’s assumption of the liability associated with the L’Orange Pension Plans was part of the total consideration paid by Woodward to acquire L’Orange and thus reduced Woodward’s cash payment for the transaction. Woodward has completed its valuation of the defined benefit pension obligations associated with the L’Orange Pension Plans and determined the value of the associated unfunded obligation was $38,998 , of which $1,143 was considered current as of the June 1, 2018 acquisition date. The L’Orange Pension Plans had expenses of $168 and Woodward made $54 of contributions to the L’Orange Pension Plans during the three and nine-months ended June 30, 2018. Similar to Woodward’s other defined benefit plans and other postretirement benefit plans, a September 30 measurement date will be utilized to value the plan obligations of the L’Orange Pension Plans going forward. The L’Orange Pension Plans are unfunded. U.S. GAAP requires that, for obligations outstanding as of September 30, 2017, the funded status reported in interim periods shall be the same asset or liability recognized in the previous year end statement of financial position adjusted for (a) subsequent accruals of net periodic benefit cost that exclude the amortization of amounts previously recognized in other comprehensive income (for example, subsequent accruals of service cost, interest cost, and return on plan assets) and (b) contributions to a funded plan or benefit payments. During the third quarter of fiscal year 2016, Woodward opened a lump-sum buy-out window, which closed in the fourth quarter of fiscal year 2016 and was fully settled during the first quarter of fiscal year 2017, 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 were provided the opportunity to elect to receive a one-time lump-sum payment or an immediate annuity in lieu of future pension benefit payments. Pension benefit payments paid from available pension plan assets under the lump-sum buy-out options were $670 during the first nine months of fiscal year 2017. Woodward made no further pension benefit payments under the lump-sum buy-out options. The components of the net periodic retirement pension costs recognized are as follows:       Three-Months Ended June 30,  United States Other Countries Total  2018 2017 2018 2017 2018 2017  Service cost $ 410 $ 419 $ 283 $ 192 $ 693 $ 611  Interest cost 1,501 1,439 386 305 1,887 1,744  Expected return on plan assets (2,904) (2,632) (703) (656) (3,607) (3,288)  Amortization of:  Net actuarial loss 150 464 74 130 224 594  Prior service cost 177 95 - - 177 95  Net periodic retirement pension (benefit) cost $ (666) $ (215) $ 40 $ (29) $ (626) $ (244)  Contributions paid $ - $ - $ 227 $ 99 $ 227 $ 99    Nine-Months Ended June 30,  United States Other Countries Total  2018 2017 2018 2017 2018 2017  Service cost $ 1,232 $ 1,256 $ 606 $ 571 $ 1,838 $ 1,827  Interest cost 4,503 4,318 1,059 897 5,562 5,215  Expected return on plan assets (8,711) (7,897) (2,106) (1,935) (10,817) (9,832)  Amortization of:  Net actuarial loss 449 1,391 221 383 670 1,774  Prior service cost 532 287 - - 532 287  Net periodic retirement pension benefit $ (1,995) $ (645) $ (220) $ (84) $ (2,215) $ (729)  Contributions paid $ - $ - $ 658 $ 565 $ 658 $ 565  The components of the net periodic other postretirement benefit costs recognized are as follows:       Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Service cost $ 1 $ 4 $ 5 $ 11  Interest cost 291 311 874 933  Amortization of:  Net actuarial loss 24 50 72 151  Prior service benefit (40) (40) (119) (119)  Curtailment gain - - (330) -  Net periodic other postretirement cost $ 276 $ 325 $ 502 $ 976  Contributions paid $ 595 $ 592 $ 1,830 $ 2,011  The amount of cash contributions made to these plans in any year is dependent upon a number of factors, including minimum funding requirements in the jurisdictions in which Woodward operates and arrangements made with trustees of certain foreign plans. As a result, the actual funding in fiscal year 2018 may differ from the current estimate. Woodward estimates its remaining cash contributions in fiscal year 2018 will be as follows:        Retirement pension benefits:  United States $ -  United Kingdom 155  Japan -  Germany 329  Other postretirement benefits 2,041 Multiemployer defined benefit plans Woodward operates multiemployer defined benefit plans for certain employees in both the Netherlands and Japan. The amounts of contributions associated with the multiemployer defined benefit plans were as follows:      Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Company contributions $ 86 $ 73 $ 253 $ 220 

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Jun. 30, 2018
Stockholders' Equity and Stock-Based Compensation [Abstract]
Stockholders' Equity	 Note 20. Stockholders’ equity Stock repurchase program In the first quarter of fiscal year 2017, Woodward’s board of directors terminated the Company’s prior stock repurchase program and replaced it with a new program for the repurchase of up to $500,000 of Woodward’s outstanding shares of common stock on the open market or in privately negotiated transactions over a three -year period that will end in November 2019 (the “2017 Authorization”). In the first nine-months of fiscal year 2017, Woodward purchased, under the 2017 Authorization, 886 shares of its common stock for $61,229 , of which 350 shares were purchased pursuant to a 10b5-1 plan and 536 shares were purchased pursuant to a 10b-18 plan. Woodward repurchased no common stock under the 2017 Authorization in the first nine-months of fiscal year 2018. Stock-based compensation Provisions governing outstanding stock option awards are included in the 2017 Omnibus Incentive Plan (the “2017 Plan”), the 2006 Omnibus Incentive Plan (the “2006 Plan”) and the 2002 Stock Option Plan (the “2002 Plan”). The 2002 Plan provided that no further grants would be made after December 31, 2006. No further grants will be made under the 2006 Plan, which expired in fiscal year 2016. Under the 2017 Plan, there were approximately 1,300 shares of Woodward’s common stock available for future grants as of June 30, 2018. Stock options To date, equity awards under the 2017 Plan have consisted of grants of stock options to Woodward’s employees and directors. Woodward believes that these stock options align the interests of its employees and directors with the interests of its stockholders. Stock option awards are granted with an exercise price equal to the market price of Woodward’s stock at the date the grants are awarded, a ten -year term, and generally a four -year vesting schedule at a rate of 25% per year. The fair value of options granted is estimated as of the grant date using the Black-Scholes-Merton option-valuation model using the assumptions in the following table. Woodward calculates the expected term, which represents the average period of time that stock options granted are expected to be outstanding, based upon historical experience of plan participants. Expected volatility is based on historical volatility using daily stock price observations. The estimated dividend yield is based upon Woodward’s historical dividend practice and the market value of its common stock. The risk-free rate is based on the U.S. treasury yield curve, for periods within the contractual life of the stock option, at the time of grant.       Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Weighted-average exercise price per share n/a n/a $ 78.91 $ 62.64  Weighted-average grant date market value of Woodward stock n/a n/a $ 78.91 $ 69.45  Expected term (years) n/a n/a 6.4 - 8.7 6.0 - 8.7  Estimated volatility n/a n/a 29.1% - 32.7% 31.5% - 33.7%  Estimated dividend yield n/a n/a 0.6% - 0.8% 0.7%  Risk-free interest rate n/a n/a 2.1% - 2.8% 2.2% - 2.5%  The following is a summary of the activity for stock option awards during the three and nine-months ended June 30, 2018:       Three-Months Ended Nine-Months Ended  June 30, 2018 June 30, 2018  Number of options Weighted-Average Exercise Price per Share Number of options Weighted-Average Exercise Price per Share  Options, beginning balance 5,880 $ 44.62 5,236 $ 39.58  Options granted - n/a 750 78.91  Options exercised (158) 22.32 (255) 27.81  Options forfeited (15) 59.97 (24) 58.27  Options, ending balance 5,707 45.20 5,707 45.20 Changes in non-vested stock options during the three and nine-months ended June 30, 2018 were as follows:       Three-Months Ended Nine-Months Ended  June 30, 2018 June 30, 2018  Number of options Weighted-Average Grant Date Fair Value per Share Number of options Weighted-Average Grant Date Fair Value Per Share  Options outstanding, beginning balance 2,022 $ 21.63 2,072 $ 18.61  Options granted - n/a 750 25.66  Options vested - n/a (791) 17.57  Options forfeited (15) 20.85 (24) 20.45  Options outstanding, ending balance 2,007 21.64 2,007 21.64  Information about stock options that have vested, or are expected to vest, and are exercisable at June 30, 2018 was as follows:      Number Weighted- Average Exercise Price Weighted- Average Remaining Life in Years Aggregate Intrinsic Value  Options outstanding 5,707 $ 45.20 5.8 $ 182,230  Options vested and exercisable 3,699 36.25 4.5 150,207  Options vested and expected to vest 5,628 44.89 5.7 181,384 Stock-based compensation expense Woodward recognizes stock-based compensation expense on a straight-line basis over the requisite service period. Pursuant to form stock option agreements used by the Company, with terms approved by the administrator of the applicable plan, the requisite service period can be less than the four-year vesting period based on grantee’s retirement eligibility. As such, the recognition of stock-based compensation expense associated with some stock option grants can be accelerated to a period of less than four years, including immediate recognition of stock-based compensation expense on the date of grant. Upon approving the 2017 Plan, Woodward’s board of directors delegated authority to administer the 2017 Plan to the compensation committee of the board, including, but not limited to, the power to determine the recipients of awards and the terms of those awards. The compensation committee approved issuance of options in the first quarter of fiscal year 2017 under the 2017 Plan, with an award date of October 3, 2016 conditional upon and subject to approval of the 2017 Plan by the stockholders. The stock options conditionally awarded under the 2017 Plan were not granted or outstanding for accounting purposes prior to stockholder approval of the 2017 Plan, and as such no stock-based compensation expense related to such awards was recognized on these stock options, during the three-months ended December 31, 2016, but rather the expense was recognized in the three-months ended March 31, 2017. Options granted in the three-months ended December 31, 2017 were not conditionally granted and, therefore, stock-based compensation expense related to those awards was recognized during the three-months ended December 31, 2017. Total stock-based compensation expense was $1,858 for the three-months and $16,292 for the nine-months ended June 30, 2018, and $1,817 for the three-months and $15,580 for the nine-months ended June 30, 2017. At June 30, 2018, there was approximately $10,938 of total unrecognized compensation expense related to non-vested stock-based compensation arrangements. The pre-vesting forfeiture rates for purposes of determining stock-based compensation expense recognized were estimated to be 0% for members of Woodward’s board of directors and 9% for all others. The remaining unrecognized compensation cost is expected to be recognized over a weighted-average period of approximately 2.0 years.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure
Commitments and Contingencies	Note 21. Commitments and contingencies Woodward is currently involved in claims, pending or threatened litigation or other legal proceedings, investigations and/or regulatory proceedings arising in the normal course of business, including, among others, those relating to product liability claims, employment matters, worker’s compensation claims, contractual disputes, product warranty claims and alleged violations of various laws and regulations. Woodward accrues for known individual matters using estimates of the most likely amount of loss where it believes that it is probable the matter will result in a loss when ultimately resolved and such loss is reasonably estimable. Legal costs are expensed as incurred and are classified in “Selling, general and administrative expenses” on the Condensed Consolidated Statements of Earnings. Woodward is partially self-insured in the United States for healthcare and worker’s compensation up to predetermined amounts, above which third party insurance applies. Management regularly reviews the probable outcome of related claims and proceedings, the expenses expected to be incurred, the availability and limits of the insurance coverage, and the established accruals for liabilities. While the outcome of pending claims, legal and regulatory proceedings, and investigations cannot be predicted with certainty, management believes that any liabilities that may result from these claims, proceedings and investigations will not have a material effect on Woodward's liquidity, financial condition, or results of operations. In the event of a change in control of Woodward, as defined in change-in-control agreements with its current corporate officers, Woodward may be required to pay termination benefits to any such officer if such officer’s employment is terminated within two years following the change of control.

Segment Information

Segment Information	9 Months Ended
	Jun. 30, 2018
Segment Information
Segment Information	Note 22. Segment information Woodward serves the aerospace and industrial markets through its two reportable segments - Aerospace and Industrial. When appropriate, Woodward’s reportable segments are aggregations of Woodward’s operating segments. Woodward uses operating segment information internally to manage its business, including the assessment of operating segment performance and decisions for the allocation of resources between operating segments. L’Orange has been included in Woodward’s Industrial segment results since the Closing. The accounting policies of the reportable segments are the same as those of the Company. Woodward evaluates segment profit or loss based on internal performance measures for each segment in a given period. In connection with that assessment, Woodward generally excludes matters such as certain charges for restructuring, interest income and expense, certain gains and losses from asset dispositions, or other non-recurring and/or non-operationally related expenses. A summary of consolidated net sales and earnings by segment follows:      Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Segment external net sales:  Aerospace $ 404,612 $ 355,992 $ 1,096,860 $ 943,198  Industrial 183,505 192,630 509,654 548,699  Total consolidated net sales $ 588,117 $ 548,622 $ 1,606,514 $ 1,491,897  Segment earnings:  Aerospace $ 82,199 $ 67,173 $ 198,721 $ 172,277  Industrial 10,450 20,870 40,031 55,957  Nonsegment expenses (30,696) (12,945) (78,062) (43,090)  Interest expense, net (7,536) (6,411) (20,139) (19,162)  Consolidated earnings before income taxes $ 54,417 $ 68,687 $ 140,551 $ 165,982 (1) Nonsegment expenses for the nine-months ended June 30, 2018 includes restructuring charges of $17,013 . See Note 15, Accrued liabilities for further details. Segment assets consist of accounts receivable, inventories, property, plant, and equipment, net, goodwill, and other intangibles, net. A summary of consolidated total assets by segment follows:                 June 30, 2018 September 30, 2017  Segment assets:  Aerospace $ 1,744,825 $ 1,722,789  Industrial 1,677,724 695,264  Unallocated corporate property, plant and equipment, net 126,537 104,755  Other unallocated assets 254,978 234,301  Consolidated total assets $ 3,804,064 $ 2,757,109  

Subsequent Events

Subsequent Events	9 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Note 2 3 . Subsequent event On July 31, 2018 , Woodward’s Board of Directors declared a quarterly cash dividend of $0.1425 per share, payable on September 4, 2018 , to stockholders of record as of August 21, 2018 . 

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Jun. 30, 2018
Earnings Per Share
Reconciliation of Net Earnings to Net Earnings Per Share Basic and Diluted	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Numerator:  Net earnings $ 49,117 $ 53,626 $ 105,866 $ 138,279  Denominator:  Basic shares outstanding 61,608 61,288 61,417 61,387  Dilutive effect of stock options and restricted stock 2,273 2,104 2,365 2,133  Diluted shares outstanding 63,881 63,392 63,782 63,520  Income per common share:  Basic earnings per share $ 0.80 $ 0.87 $ 1.72 $ 2.25  Diluted earnings per share $ 0.77 $ 0.85 $ 1.66 $ 2.18 
Anti-dilutive Stock Options Excluded from Computation of Earnings Per Share	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Options 764 780 760 66  Weighted-average option price $ 78.70 $ 62.64 $ 78.73 $ 62.98 
Schedule of Treasury Stock Shares Held for Deferred Compensation Included in Basic and Diluted Shares Outstanding	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Weighted-average treasury stock shares held for deferred compensation obligations 201 186 197 178 

Business Acquisitions (Tables)

Business Acquisitions (Tables)	9 Months Ended
	Jun. 30, 2018
Business Acquisition [Line Items]
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	   Year Ending September 30:  2018 (remaining) $ 20,097  2019 58,284  2020 42,879  2021 39,994  2022 38,131  Thereafter 444,128  $ 643,513 
Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Schedule of the Purchase Price	   Cash paid to Sellers $ 780,355  Less acquired cash and restricted cash (9,286)  Total purchase price $ 771,069 
Schedule of assets acquired and liabililties assumed	   Accounts receivable $ 26,538  Inventories (1) 72,674  Other current assets 1,385  Property, plant, and equipment 90,589  Goodwill 269,433  Intangible assets 556,023  Total assets acquired 1,016,642  Other current liabilities 40,362  Deferred income tax liabilities 164,791  Other noncurrent liabilities 40,420  Total liabilities assumed 245,573  Net assets acquired $ 771,069 (1) Inventories include a $15,107 adjustment to state work in progress and finished goods inventories at their fair value as of the acquisition date. The inventory fair value adjustment is being recognized as a non-cash increase to cost of goods sold ratably over the estimated inventory turnover period, with the entire $15,107 fair value adjustment expected to be recognized in cost of goods sold during the year ending September 30, 2018 .
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets Acquired	   Estimated Amounts Weighted-Average Useful Life Amortization Method  Intangible assets with finite lives:  Customer relationships and contracts $ 379,423 20 years Straight-line  Process technology 71,940 21 years Straight-line  Backlog 40,611 1 year Accelerated  Other 232 3 years Straight-line  Intangible asset with indefinite life:  Trade name 63,817 Indefinite Not amortized  Total $ 556,023 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	   Year Ending September 30:  2018 (remaining) $ 18,832  2019 34,884  2020 19,701  2021 21,458  2022 21,745  Thereafter 375,586  $ 492,206 
Schedule of Unaudited Pro Forma Results	  Three-Months Ended Three-Months Ended  June 30, 2018 June 30, 2017  As reported Pro forma As reported Pro forma  Net sales $ 588,117 $ 639,665 $ 548,622 $ 619,485  Net earnings 49,117 60,488 53,626 53,071  Earnings per share:  Basic earnings per share $ 0.80 $ 0.98 $ 0.87 $ 0.87  Diluted earnings per share 0.77 0.95 0.85 0.84      Nine-Months Ended Nine-Months Ended  June 30, 2018 June 30, 2017  As reported Pro forma As reported Pro forma  Net sales $ 1,606,514 $ 1,830,515 $ 1,491,897 $ 1,684,071  Net earnings 105,866 129,191 138,279 108,190  Earnings per share:  Basic earnings per share $ 1.72 $ 2.10 $ 2.25 $ 1.76  Diluted earnings per share 1.66 2.03 2.18 1.70 

Financial Instruments and Fai34

Financial Instruments and Fair Value Measurements (Tables)	9 Months Ended
	Jun. 30, 2018
Financial Instruments and Fair Value Measurments
Financial Assets that are Measured at Fair Value on a Recurring Basis	   At June 30, 2018 At September 30, 2017  Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total  Financial assets:  Cash $ 61,050 $ - $ - $ 61,050 $ 79,822 $ - $ - $ 79,822  Restricted investments in money market funds 2,521 - - 2,521 - - - -  Investments in reverse repurchase agreements 185 - - 185 1 - - 1  Investments in term deposits with foreign banks 50,643 - - 50,643 7,729 - - 7,729  Equity securities 19,500 - - 19,500 16,600 - - 16,600  Total financial assets $ 133,899 $ - $ - $ 133,899 $ 104,152 $ - $ - $ 104,152   Financial liabilities:  Cross currency interest rate swaps $ - $ 23,527 $ - $ 23,527 $ - $ - $ - $ -  Total financial liabilities $ - $ 23,527 $ - $ 23,527 $ - $ - $ - $ -  
Estimated Fair Values of Financial Instruments	   At June 30, 2018 At September 30, 2017  Fair Value Hierarchy Level Estimated Fair Value Carrying Cost Estimated Fair Value Carrying Cost  Assets:  Notes receivable from municipalities 2 $ 14,523 $ 14,475 $ 15,848 $ 14,507  Investments in short-term time deposits 2 103 104 8,227 8,223  Liabilities:  Long-term debt 2 $ (1,203,413) $ (1,214,246) $ (592,317) $ (582,080) 

Derivative Instruments and He35

Derivative Instruments and Hedging Activities (Tables)	9 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities
Impact of Derivative Instruments on Earnings	   Three-Months Ended June 30, 2018 Three-Months Ended June 30, 2017  Derivatives in: Location Amount of (Income) Expense Recognized in Earnings on Derivative Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings Amount of (Income) Expense Recognized in Earnings on Derivative Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings  Cross currency interest rate swap agreement designated as fair value hedges Selling, general and administrative expenses $ 1,467 $ 1,835 $ 1,467 $ - $ - $ -  Cross currency interest rate swap agreements designated as cash flow hedges Selling, general and administrative expenses 3,506 21,823 3,506 - - -  Treasury lock agreement designated as cash flow hedge Interest expense (18) - (18) (18) - (18)  $ 4,955 $ 23,658 $ 4,955 $ (18) $ - $ (18)       Nine-Months Ended June 30, 2018 Nine-Months Ended June 30, 2017  Derivatives in: Location Amount of (Income) Expense Recognized in Earnings on Derivative Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings Amount of (Income) Expense Recognized in Earnings on Derivative Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings  Cross currency interest rate swap agreement designated as fair value hedges Selling, general and administrative expenses $ 1,467 $ 1,835 $ 1,467 $ - $ - $ -  Cross currency interest rate swap agreements designated as cash flow hedges Selling, general and administrative expenses 3,506 21,823 3,506 - - -  Treasury lock agreement designated as cash flow hedge Interest expense (54) - (54) (54) - (54)  $ 4,919 $ 23,658 $ 4,919 $ (54) $ - $ (54) 

Supplemental Statements of Ca36

Supplemental Statements of Cash Flows Information (Tables)	9 Months Ended
	Jun. 30, 2018
Supplemental Statements of Cash Flows Information
Schedule of Cash Flow Supplemental Disclosures	   Nine-Months Ended June 30,  2018 2017  Interest paid, net of amounts capitalized $ 24,966 $ 24,879  Income taxes paid 31,443 29,807  Income tax refunds received 1,760 158  Non-cash activities:  Purchases of property, plant and equipment on account 8,438 12,252  Common shares issued from treasury to settle employee liabilities - 1,767  Common shares issued from treasury to settle benefit obligations (Note 19) 14,741 14,014  Cashless exercise of stock options - 1,473 

Accounts Receivable (Tables)

Accounts Receivable (Tables)	9 Months Ended
	Jun. 30, 2018
Accounts Receivable Disclosure
Schedule of Accounts Receivable	   June 30, September 30,  2018 2017  Accounts receivable from:  Customers $ 362,459 $ 367,715  Other (Chinese financial institutions) 27,319 38,243  Allowance for uncollectible customer amounts (3,668) (3,776)  $ 386,110 $ 402,182 

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Jun. 30, 2018
Inventories
Schedule of Inventories	   June 30, September 30,  2018 2017  Raw materials $ 86,677 $ 59,034  Work in progress 135,518 103,790  Component parts (1) 301,257 262,755  Finished goods 65,988 47,926  $ 589,440 $ 473,505 (1) Component parts include items that can be sold separately as finished goods or included in the manufacture of other products.

Property, Plant, and Equipmen39

Property, Plant, and Equipment, Net (Tables)	9 Months Ended
	Jun. 30, 2018
Property, Plant, and Equipment, Net
Schedule of Property Plant and Equipment, Net	   June 30, September 30,  2018 2017  Land and land improvements $ 92,934 $ 88,326  Buildings and building improvements 564,366 514,453  Leasehold improvements 17,827 16,142  Machinery and production equipment 654,495 543,641  Computer equipment and software 123,705 124,723  Office furniture and equipment 27,567 24,308  Other 19,326 19,393  Construction in progress 87,620 111,910  1,587,840 1,442,896  Less accumulated depreciation (543,807) (520,853)  Property, plant, and equipment, net $ 1,044,033 $ 922,043 
Schedule of Depreciation Expense	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Depreciation expense $ 17,695 $ 14,141 $ 48,276 $ 40,259 
Schedule of Capitalized Interest	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Capitalized interest $ 607 $ 567 $ 1,841 $ 1,521 

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Jun. 30, 2018
Goodwill Disclosure
Schedule of Goodwill	   September 30, 2017 Additions Effects of Foreign Currency Translation June 30, 2018  Aerospace $ 455,423 $ - $ - $ 455,423  Industrial 101,122 269,433 948 371,503  Consolidated $ 556,545 $ 269,433 $ 948 $ 826,926 

Intangible Assets, Net (Tables)

Intangible Assets, Net (Tables)	9 Months Ended
	Jun. 30, 2018
Intangible Assets, Net
Schedule of Finite-lived and Indefinite-lived Intangible Assets by Major Class	   June 30, 2018 September 30, 2017  Gross Carrying Value Accumulated Amortization Net Carrying Amount Gross Carrying Value Accumulated Amortization Net Carrying Amount  Intangible assets with finite lives:  Customer relationships and contracts:  Aerospace $ 281,683 $ (162,692) $ 118,991 $ 282,225 $ (151,155) $ 131,070  Industrial 422,948 (35,198) 387,750 40,962 (34,407) 6,555  Total $ 704,631 $ (197,890) $ 506,741 $ 323,187 $ (185,562) $ 137,625   Intellectual property:  Aerospace $ - $ - $ - $ - $ - $ -  Industrial 19,480 (18,527) 953 19,422 (18,196) 1,226  Total $ 19,480 $ (18,527) $ 953 $ 19,422 $ (18,196) $ 1,226   Process technology:  Aerospace $ 76,372 $ (53,377) $ 22,995 $ 76,605 $ (49,124) $ 27,481  Industrial 95,217 (19,139) 76,078 22,950 (17,756) 5,194  Total $ 171,589 $ (72,516) $ 99,073 $ 99,555 $ (66,880) $ 32,675   Backlog:  Aerospace $ - $ - $ - $ - $ - $ -  Industrial 40,885 (4,579) 36,306 - - -  Total $ 40,885 $ (4,579) $ 36,306 $ - $ - $ -   Other intangibles:  Aerospace $ - $ - $ - $ - $ - $ -  Industrial 1,651 (1,211) 440 1,312 (956) 356  Total $ 1,651 $ (1,211) $ 440 $ 1,312 $ (956) $ 356   Intangible asset with indefinite life:  Tradename:  Aerospace $ - $ - $ - $ - $ - $ -  Industrial 64,248 - 64,248 - - -  Total $ 64,248 $ - $ 64,248 $ - $ - $ -   Total intangibles:  Aerospace $ 358,055 $ (216,069) $ 141,986 $ 358,830 $ (200,279) $ 158,551  Industrial 644,429 (78,654) 565,775 84,646 (71,315) 13,331  Consolidated Total $ 1,002,484 $ (294,723) $ 707,761 $ 443,476 $ (271,594) $ 171,882 
Schedule of Finite-Lived Intangible Assets Amortization Expense	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Amortization expense $ 11,360 $ 6,439 $ 23,861 $ 19,328 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	   Year Ending September 30:  2018 (remaining) $ 20,097  2019 58,284  2020 42,879  2021 39,994  2022 38,131  Thereafter 444,128  $ 643,513 

Credit Facilities, Short-term42

Credit Facilities, Short-term Borrowings and Long-term Debt (Tables)	9 Months Ended
	Jun. 30, 2018
Debt Disclosure
Schedule of Long-term Debt	   June 30, September 30,  2018 2017  Long-term portion of revolving credit facility - Floating rate (LIBOR plus 0.85% - 1.65%), due April 2020; unsecured $ 234,343 $ -  Series D notes – 6.39%, due October 2018; unsecured 100,000 100,000  Series F notes – 8.24%, due April 2019; unsecured 43,000 43,000  Series G notes – 3.42%, due November 2020; unsecured 50,000 50,000  Series H notes – 4.03%, due November 2023; unsecured 25,000 25,000  Series I notes – 4.18%, due November 2025; unsecured 25,000 25,000  Series J notes – Floating rate (LIBOR plus 1.25%), due November 2020; unsecured 50,000 50,000  Series K notes – 4.03%, due November 2023; unsecured 50,000 50,000  Series L notes – 4.18%, due November 2025; unsecured 50,000 50,000  Series M notes – 1.12% due September 2026; unsecured 46,726 47,270  Series N notes – 1.31% due September 2028; unsecured 89,947 90,995  Series O notes – 1.57% due September 2031; unsecured 50,230 50,815  Series P notes – 4.27% due May 2025; unsecured 85,000 -  Series Q notes – 4.35% due May 2027; unsecured 85,000 -  Series R notes – 4.41% due May 2029; unsecured 75,000 -  Series S notes – 4.46% due May 2030; unsecured 75,000 -  Series T notes – 4.61% due May 2033; unsecured 80,000 -  Unamortized debt issuance costs (2,850) (1,794)  Total long-term debt 1,211,396 580,286  Less: Current portion of long-term debt - -  Long-term debt, less current portion $ 1,211,396 $ 580,286 

Accrued Liabilities (Tables)

Accrued Liabilities (Tables)	9 Months Ended
	Jun. 30, 2018
Accrued Liabilities [Line Items]
Accrued Liabilities	    June 30, September 30,  2018 2017  Salaries and other member benefits $ 63,743 $ 91,285  Warranties 19,802 13,597  Interest payable 8,856 9,626  Current portion of acquired performance obligations and unfavorable contracts (1) 1,627 1,627  Accrued retirement benefits 3,529 2,413  Current portion of loss reserve on contractual lease commitments 1,245 1,343  Current portion of deferred income from JV formation (Note 5) 6,414 6,451  Deferred revenues 2,689 4,625  Restructuring charges 16,574 -  Taxes, other than income 18,012 14,401  Other 19,720 9,704  $ 162,211 $ 155,072  (1) In connection with Woodward’s acquisition of GE Aviation Systems LLC’s (the “Seller”) thrust reverser actuation systems business located in Duarte, California (the “Duarte Acquisition”) in fiscal year 2013, Woodward assumed current and long-term performance obligations for contractual commitments that are expected to result in future economic losses. In addition, Woodward assumed current and long-term performance obligations for services to be provided to the Seller and others, partially offset by current and long-term assets related to contractual payments due from the Seller. The current portion of both obligations is included in “Accrued liabilities” in the Condensed Consolidated Balance Sheets .
Warranties	   Three-Months Ended June 30, Nine-Months Ended June 30,  2018 2017 2018 2017  Warranties, beginning of period $ 13,283 $ 15,041 $ 13,597 $ 15,993  Increases due to acquisition of L'Orange 6,045 - 6,045 -  Expense, net of recoveries 2,696 2,746 3,000 6,808  Reductions for settling warranties (1,838) (3,746) (2,670) (8,528)  Foreign currency exchange rate changes (384) 257 (170) 25  Warranties, end of period $ 19,802 $ 14,298 $ 19,802 $ 14,298 
Loss Reserve On Contractual Lease Commitments [Member]
Accrued Liabilities [Line Items]
Loss Reserve & Restructuring Reserve Activity	   Three-Months Ended June 30, Nine-Months Ended June 30,  2018 2017 2018 2017  Loss reserve on contractual lease commitments, beginning of period $ 4,478 $ 8,395 $ 5,270 $ 9,242  Payments, net of sublease income (267) (382) (1,059) (1,229)  Non-cash adjustments - (2,322) - (2,322)  Loss reserve on contractual lease commitments, end of period $ 4,211 $ 5,691 $ 4,211 $ 5,691 
Employee Severance [Member]
Accrued Liabilities [Line Items]
Loss Reserve & Restructuring Reserve Activity	  Period Activity  Balances as of October 1, 2017 Charges (gains) Cash receipts (payments) Non-cash activity Balances as of June 30, 2018  Workforce management costs associated with:  Duarte plant relocation $ - $ 12,504 $ - $ - $ 12,504  Industrial turbomachinery business realignment - 4,509 (439) - 4,070  Total $ - $ 17,013 $ (439) $ - $ 16,574 

Other Liabilities (Tables)

Other Liabilities (Tables)	9 Months Ended
	Jun. 30, 2018
Other Liabilities
Schedule of Other Liabilities	   June 30, September 30,  2018 2017  Net accrued retirement benefits, less amounts recognized within accrued liabilities $ 92,075 $ 52,211  Noncurrent portion of deferred income from JV formation (1) 237,724 236,896  Total unrecognized tax benefits 9,910 20,949  Noncurrent income taxes payable (2) 23,920 -  Acquired unfavorable contracts (3) 591 2,076  Deferred economic incentives (4) 13,422 14,574  Loss reserve on contractual lease commitments (5) 2,966 3,927  Cross currency swap derivative liability (6) 23,527 -  Other 12,363 14,165  $ 416,498 $ 344,798  (1) See Note 5, Joint venture for more information on the deferred income from JV formation. (2) See Note 18, Income taxes for more information on the noncurrent income taxes payable. (3) In connection with the Duarte Acquisition in fiscal year 2013, Woodward assumed current and long-term performance obligations for contractual commitments that are expected to result in future economic losses. The long-term portion of the acquired unfavorable contracts is included in Other liabilities. (4) Woodward receives certain economic incentives from various state and local authorities related to capital expansion projects. Such amounts are initially recorded as deferred credits and are being recognized as a reduction to pre-tax expense over the economic lives of the related capital expansion projects. (5) See Note 15, Accrued liabilities for more information on the loss reserve on contractual lease commitments . See Note 6 , Financial instruments and fair value measurements for more information on the cross currency swap derivative liability .

Other (Income) Expense, Net (Ta

Other (Income) Expense, Net (Tables)	9 Months Ended
	Jun. 30, 2018
Other (Income) Expense, Net
Schedule of Other (Income) Expense, Net	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Equity interest in the (earnings) losses of the JV (Note 5) $ (738) $ 432 $ (2,340) $ (634)  Net (gain) loss on sales of assets 50 64 (404) (3,598)  Rent income (28) (53) (99) (196)  Net gain on investments in deferred compensation program (257) (523) (957) (1,252)  Loss on forward option derivative instrument (Note 7) 5,543 - 5,543 -  Other (373) (370) (731) (673)  $ 4,197 $ (450) $ 1,012 $ (6,353) 

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Jun. 30, 2018
Income Taxes
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	   Nine-Months Ended  June 30, 2018  Transition tax (provisional) $ 26,000  Net impact on U.S. deferred tax assets and liabilities (provisional) (16,260)  Net changes in deferred tax liability associated with anticipated repatriation taxes (provisional) 5,038  Total provisional discrete impact of the enactment of the Tax Act 14,778  Discrete impact recorded in the three months ended June 30, 2018 3,671  Net discrete impacts of the enactment of the Tax Act $ 18,449 
Tax Expense and Effective Tax Rate	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Earnings before income taxes $ 54,417 $ 68,687 $ 140,551 $ 165,982  Income tax expense 5,300 15,061 34,685 27,703  Effective tax rate 9.7% 21.9% 24.7% 16.7% 

Retirement Benefits (Tables)

Retirement Benefits (Tables)	9 Months Ended
	Jun. 30, 2018
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Estimated Remaining Cash Contributions	   Retirement pension benefits:  United States $ -  United Kingdom 155  Japan -  Germany 329  Other postretirement benefits 2,041 
Defined Benefit Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Net Periodic Benefit Costs	   Three-Months Ended June 30,  United States Other Countries Total  2018 2017 2018 2017 2018 2017  Service cost $ 410 $ 419 $ 283 $ 192 $ 693 $ 611  Interest cost 1,501 1,439 386 305 1,887 1,744  Expected return on plan assets (2,904) (2,632) (703) (656) (3,607) (3,288)  Amortization of:  Net actuarial loss 150 464 74 130 224 594  Prior service cost 177 95 - - 177 95  Net periodic retirement pension (benefit) cost $ (666) $ (215) $ 40 $ (29) $ (626) $ (244)  Contributions paid $ - $ - $ 227 $ 99 $ 227 $ 99    Nine-Months Ended June 30,  United States Other Countries Total  2018 2017 2018 2017 2018 2017  Service cost $ 1,232 $ 1,256 $ 606 $ 571 $ 1,838 $ 1,827  Interest cost 4,503 4,318 1,059 897 5,562 5,215  Expected return on plan assets (8,711) (7,897) (2,106) (1,935) (10,817) (9,832)  Amortization of:  Net actuarial loss 449 1,391 221 383 670 1,774  Prior service cost 532 287 - - 532 287  Net periodic retirement pension benefit $ (1,995) $ (645) $ (220) $ (84) $ (2,215) $ (729)  Contributions paid $ - $ - $ 658 $ 565 $ 658 $ 565 
Defined Contribution Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Costs of Retirement Plans	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Company costs $ 8,262 $ 8,039 $ 24,858 $ 23,790 
Other Postretirement Benefit Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Net Periodic Benefit Costs	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Service cost $ 1 $ 4 $ 5 $ 11  Interest cost 291 311 874 933  Amortization of:  Net actuarial loss 24 50 72 151  Prior service benefit (40) (40) (119) (119)  Curtailment gain - - (330) -  Net periodic other postretirement cost $ 276 $ 325 $ 502 $ 976  Contributions paid $ 595 $ 592 $ 1,830 $ 2,011 
Multiemployer Plans, Pension [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Costs of Retirement Plans	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Company contributions $ 86 $ 73 $ 253 $ 220 

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	   Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Weighted-average exercise price per share n/a n/a $ 78.91 $ 62.64  Weighted-average grant date market value of Woodward stock n/a n/a $ 78.91 $ 69.45  Expected term (years) n/a n/a 6.4 - 8.7 6.0 - 8.7  Estimated volatility n/a n/a 29.1% - 32.7% 31.5% - 33.7%  Estimated dividend yield n/a n/a 0.6% - 0.8% 0.7%  Risk-free interest rate n/a n/a 2.1% - 2.8% 2.2% - 2.5% 
Activity for Stock Option Awards	   Three-Months Ended Nine-Months Ended  June 30, 2018 June 30, 2018  Number of options Weighted-Average Exercise Price per Share Number of options Weighted-Average Exercise Price per Share  Options, beginning balance 5,880 $ 44.62 5,236 $ 39.58  Options granted - n/a 750 78.91  Options exercised (158) 22.32 (255) 27.81  Options forfeited (15) 59.97 (24) 58.27  Options, ending balance 5,707 45.20 5,707 45.20 
Stock Options Vested, Or Expected to Vest and Are Exercisable	   Number Weighted- Average Exercise Price Weighted- Average Remaining Life in Years Aggregate Intrinsic Value  Options outstanding 5,707 $ 45.20 5.8 $ 182,230  Options vested and exercisable 3,699 36.25 4.5 150,207  Options vested and expected to vest 5,628 44.89 5.7 181,384 
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Changes in Nonvested Stock Options	   Three-Months Ended Nine-Months Ended  June 30, 2018 June 30, 2018  Number of options Weighted-Average Grant Date Fair Value per Share Number of options Weighted-Average Grant Date Fair Value Per Share  Options outstanding, beginning balance 2,022 $ 21.63 2,072 $ 18.61  Options granted - n/a 750 25.66  Options vested - n/a (791) 17.57  Options forfeited (15) 20.85 (24) 20.45  Options outstanding, ending balance 2,007 21.64 2,007 21.64 

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Jun. 30, 2018
Segment Information
Consolidated Net Sales and Earnings by Segment	    Three-Months Ended Nine-Months Ended  June 30, June 30,  2018 2017 2018 2017  Segment external net sales:  Aerospace $ 404,612 $ 355,992 $ 1,096,860 $ 943,198  Industrial 183,505 192,630 509,654 548,699  Total consolidated net sales $ 588,117 $ 548,622 $ 1,606,514 $ 1,491,897  Segment earnings:  Aerospace $ 82,199 $ 67,173 $ 198,721 $ 172,277  Industrial 10,450 20,870 40,031 55,957  Nonsegment expenses (30,696) (12,945) (78,062) (43,090)  Interest expense, net (7,536) (6,411) (20,139) (19,162)  Consolidated earnings before income taxes $ 54,417 $ 68,687 $ 140,551 $ 165,982 (1) Nonsegment expenses for the nine-months ended June 30, 2018 includes restructuring charges of $17,013 . See Note 15, Accrued liabilities for further details.
Consolidated Total Assets by Segment	   June 30, 2018 September 30, 2017  Segment assets:  Aerospace $ 1,744,825 $ 1,722,789  Industrial 1,677,724 695,264  Unallocated corporate property, plant and equipment, net 126,537 104,755  Other unallocated assets 254,978 234,301  Consolidated total assets $ 3,804,064 $ 2,757,109 

Recent Accounting Pronouncement

Recent Accounting Pronouncements (Narrative) (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2017USD ($)
Recent Accounting Pronouncements
Rent expense for all operating leases	$ 8,302
Future minimum rental payments required under operating leases	$ 23,215

Earnings Per Share (Reconciliat

Earnings Per Share (Reconciliation of Net Earnings to Net Earnings Per Share Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share
Net earnings	$ 49,117	$ 53,626	$ 105,866	$ 138,279
Basic shares outstanding	61,608	61,288	61,417	61,387
Dilutive effect of stock options and restricted stock	2,273	2,104	2,365	2,133
Diluted shares outstanding	63,881	63,392	63,782	63,520
Basic earnings per share	$ 0.80	$ 0.87	$ 1.72	$ 2.25
Diluted earnings per share	$ 0.77	$ 0.85	$ 1.66	$ 2.18

Earnings Per Share (Anti-diluti

Earnings Per Share (Anti-dilutive Stock Options Excluded from Computation of Earnings Per Share) (Details) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share
Options	764	780	760	66
Weighted-average option price	$ 78.70	$ 62.64	$ 78.73	$ 62.98

Earnings Per Share (Schedule of

Earnings Per Share (Schedule of Treasury Stock Shares Held for Deferred Compensation Included in Basic and Diluted Shares Outstanding) (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share
Weighted-average treasury stock shares held for deferred compensation obligations	201	186	197	178

Business Acquisitions (Narrativ

Business Acquisitions (Narrative) (Details) € in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018EUR (€)	Jun. 30, 2018USD ($)	Jun. 01, 2018USD ($)
Business Acquisition [Line Items]
Total purchase price			$ 771,069
Proceeds from issuance of long-term debt			400,000
Borrowings on revolving lines of credit			1,769,105	$ 1,106,000
Goodwill, Acquired During Period			269,433
Interest Expense	$ 7,878	$ 6,769	21,315	$ 20,399
Cost of forward option	5,543		$ 5,543
Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Date of Acquisition Agreement			Apr. 8, 2018
Effective Date of Acquisition			Jun. 1, 2018
Purchase agreement contract price					€ 700,000	$ 811,000
Total purchase price			$ 771,069
Cash paid at closing			780,355
Proceeds from issuance of long-term debt			400,000
Borrowings on revolving lines of credit			167,420
Goodwill, Acquired During Period			269,433
Net sales since acquisition date			24,878
Net loss since acquisition date			1,215
Transaction costs	$ 10,755		12,036
Interest Expense			1,154
Cost of forward option			5,543
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual			1,215
Defined Benefit Pension Plan [Member] | Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Pension obligation assumed in L'Orange aquisition			$ 38,998
Current portion of pension obligation							$ 1,143

Business Acquisitions (Schedule

Business Acquisitions (Schedule of Purchase Price) (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2018USD ($)
Business Acquisition [Line Items]
Total purchase price	$ 771,069
Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Cash paid to seller	780,355
Less cash and restricted cash acquired	(9,286)
Total purchase price	$ 771,069

Business Acquisitions (Schedu56

Business Acquisitions (Schedule of Purchase Price Allocation) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 01, 2018	Sep. 30, 2017
Business Acquisition [Line Items]
Goodwill	$ 826,926		$ 556,545
Fair value adjustment to inventory as of acquisition date		$ 15,107
Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Accounts receivable		26,538
Inventories		72,674
Other current assets		1,385
Property, plant, and equipment		90,589
Goodwill		269,433
Intangible assets		556,023
Total assets acquired		1,016,642
Other current liabilities		40,362
Deferred tax liabilities		164,791
Other noncurrent liabilities		40,420
Total liabilities assumed		245,573
Net assets acquired		$ 771,069

Business Acquisitions (Schedu57

Business Acquisitions (Schedule of Finite-Lived and Indefinite-Lived Intangible Assets Acquired) (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2018	Jun. 01, 2018
Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Intangible assets		$ 556,023
Business Acquisition, Acquiree - L'Orange [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Intangible assets		63,817
Process Technology [Member]
Business Acquisition [Line Items]
Weighted Average Useful Life	21 years
Process Technology [Member] | Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Intangible assets		71,940
Customer Relationships [Member]
Business Acquisition [Line Items]
Weighted Average Useful Life	20 years
Customer Relationships [Member] | Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Intangible assets		379,423
Other Intangibles [Member]
Business Acquisition [Line Items]
Weighted Average Useful Life	3 years
Other Intangibles [Member] | Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Intangible assets		232
Backlog [Member]
Business Acquisition [Line Items]
Weighted Average Useful Life	1 year
Backlog [Member] | Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Intangible assets		$ 40,611

Business Acquisitions (Schedu58

Business Acquisitions (Schedule of Finite-Lived Intangible Assets Acquired, Future Amortization Expense) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 01, 2018
Business Acquisition [Line Items]
2018 (remaining)	$ 20,097
2,019	58,284
2,020	42,879
2,021	39,994
2,022	38,131
Thereafter	444,128
Total Finite-Lived Intangible Assets, Net	$ 643,513
Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
2018 (remaining)		$ 18,832
2,019		34,884
2,020		19,701
2,021		21,458
2,022		21,745
Thereafter		375,586
Total Finite-Lived Intangible Assets, Net		$ 492,206

Business Acquisitions (Schedu59

Business Acquisitions (Schedule of Unaudited Pro Forma Results) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Business Acquisition [Line Items]
Net sales	$ 588,117	$ 548,622	$ 1,606,514	$ 1,491,897
Net earnings	$ 49,117	$ 53,626	$ 105,866	$ 138,279
Basic earnings per share	$ 0.80	$ 0.87	$ 1.72	$ 2.25
Diluted earnings per share	$ 0.77	$ 0.85	$ 1.66	$ 2.18
Business Acquisition, Acquiree - L'Orange [Member]
Pro forma
Net earnings	$ 60,488	$ 53,071	$ 129,191	$ 108,190
Net sales	$ 639,665	$ 619,485	$ 1,830,515	$ 1,684,071
Basic earnings per share	$ 0.98	$ 0.87	$ 2.10	$ 1.76
Diluted earnings per share	$ 0.95	$ 0.84	$ 2.03	$ 1.70

Joint Ventures (Narrative) (Det

Joint Ventures (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Jan. 04, 2016
Schedule of Equity Method Investments [Line Items]
Current portion of deferred income recorded in connection with joint venture	$ 6,414		$ 6,414			$ 6,451
Noncurrent portion of deferred income recorded in connection with joint venture	237,724		237,724			236,896
Equity interest in earnings (losses) of joint venture	$ 738	$ (432)	$ 2,340	$ 634
Woodward and General Electric Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Agreement to Form Joint Venture, Execution Date					Jan. 4, 2016
Equity Method Investment, Ownership Percentage	50.00%		50.00%
Cash received from formation of joint venture					$ 250,000
Cash received annually from formation of joint venture			$ 4,894
Amount of deferred income recorded in connection with joint venture							$ 250,000
Current portion of deferred income recorded in connection with joint venture	$ 6,414		6,414			6,451
Noncurrent portion of deferred income recorded in connection with joint venture	237,724		237,724			236,896
Equity interest in earnings (losses) of joint venture	738	(432)	2,340	634
Cash distributions from joint venture			0	2,500
Net investment in joint venture	8,612		8,612			6,272
Accounts receivable from related party	10,213		10,213			8,554
Accounts payable to related party	4,261		4,261			$ 6,741
Woodward and General Electric Joint Venture [Member] | Sales [Member]
Schedule of Equity Method Investments [Line Items]
Amortization of deferred income recognized as an increase to sales	1,564	1,387	4,103	4,515
Sales to related party	20,085	18,645	50,137	52,362
Reduction to sales related to royalties paid to joint venture	$ 7,340	$ 6,163	$ 19,670	$ 17,240
Woodward and General Electric Joint Venture [Member] | Scenario, Forecast [Member]
Schedule of Equity Method Investments [Line Items]
Cash received annually from formation of joint venture					$ 4,894

Financial Instruments and Fai61

Financial Instruments and Fair Value Measurements (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Jun. 30, 2018	Sep. 30, 2017
Investments in Short-Term Time Deposits [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Interest rate used to estimate fair value		5.30%
Long Term Notes Receivable From Municipalities [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Interest rate used to estimate fair value	2.80%	2.60%
Long-Term Debt [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Interest rate used to estimate fair value	3.50%	2.40%
Cash [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	$ 61,050	$ 79,822
Investments in Reverse Repurchase Agreements [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	185	1
Investments in Term Deposits with Foreign Banks [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	50,643	$ 7,729
Restricted Investments in Term Deposits with Foreign Banks [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	$ 3,769

Financial Instruments and Fai62

Financial Instruments and Fair Value Measurements (Financial Assets that are Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial assets	$ 133,899	$ 104,152
Total financial liabilities	23,527
Cross Currency Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Hedging liabilities, cross currency interest rate swaps	23,527
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial assets	133,899	104,152
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial assets	0	0
Total financial liabilities	23,527
Fair Value, Inputs, Level 2 [Member] | Cross Currency Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Hedging liabilities, cross currency interest rate swaps	23,527
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial assets	0	0
Cash [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	61,050	79,822
Cash [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	61,050	79,822
Cash [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Cash [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Restricted Investments in Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	2,521
Restricted Investments in Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	2,521
Investments in Reverse Repurchase Agreements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	185	1
Investments in Reverse Repurchase Agreements [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	185	1
Investments in Reverse Repurchase Agreements [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Investments in Reverse Repurchase Agreements [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Investments in Term Deposits with Foreign Banks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	50,643	7,729
Investments in Term Deposits with Foreign Banks [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	50,643	7,729
Investments in Term Deposits with Foreign Banks [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Investments in Term Deposits with Foreign Banks [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	19,500	16,600
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	19,500	16,600
Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	0	0
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	$ 0	$ 0

Financial Instruments and Fai63

Financial Instruments and Fair Value Measurements (Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable from municipalities, Carrying Cost	$ 14,475	$ 14,507
Investments in short-term time deposits, Carrying Cost	104	8,223
Long-term debt, excluding current portion, Carrying Cost	(1,214,246)	(582,080)
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable from municipalities, Estimated Fair Value	14,523	15,848
Investments in short-term time deposits, Estimated Fair Value	103	8,227
Long-term debt, excluding current portion, Estimated Fair Value	$ (1,203,413)	$ (592,317)

Derivative Instruments and He64

Derivative Instruments and Hedging Activities (Narrative) (Details) € in Thousands, ¥ in Thousands, $ in Thousands

Apr. 18, 2018EUR (€)

Jun. 30, 2018USD ($)

Jun. 30, 2017USD ($)

Mar. 31, 2017USD ($)

Sep. 30, 2013USD ($)

Jun. 30, 2018USD ($)

Jun. 30, 2017USD ($)

Jun. 30, 2018EUR (€)

Jun. 30, 2018USD ($)

Sep. 30, 2017USD ($)

Sep. 30, 2016CNY (¥)

Jun. 30, 2013USD ($)

Derivative Instruments, Gain (Loss) [Line Items]

Amount of Gain (Loss) Recognized in Accumulated OCI on Derivative

$ (23,658)

$ (23,658)

Unrealized Gain (Loss) on Derivatives Arising During Period

(23,658)

$ (23,658)

Term of gain or loss recognition in interest expense on terminated derivatives recorded in OCI

12 months

Face Amount | €

€ 160,000

Derivative, Currency Bought

Euro

Derivative, Cost of Hedge

5,543

$ 5,543

Intercompany Loan [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Gain (loss) on foreign currency transaction designated as a hedge of a net investment in a foreign subsidiary

$ 283

Second China Intercompany Loan [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Value of Net Investment Hedging Instruments Used | ¥

¥ 160,000

Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | EUR Denominated Loan [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Gain (loss) on foreign currency transaction designated as a hedge of a net investment in a foreign subsidiary

$ (2,559)

$ (880)

(548)

$ 3,030

Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Intercompany Loan [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Gain (loss) on foreign currency transaction designated as a hedge of a net investment in a foreign subsidiary

$ 283

$ 452

Total Accumulated Other Comprehensive (Loss) Earnings [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Remaining unrecognzied gains (losses) associated with derivative instruments included in AOCI

$ (18,521)

$ 218

Floating-Rate Cross Currency Interest Rate Contract [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Derivative, Notional Amount

167,420

Derivative, Notional Amount

167,420

Fixed-Rate Cross Currency Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | Derivatives in Cash Flow Hedging Relationships [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Derivative, Notional Amount

400,000

Derivative, Notional Amount

400,000

Fixed-Rate Cross Currency Interest Rate Contract [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Derivative, Notional Amount

400,000

Derivative, Notional Amount

400,000

Foreign Exchange Option [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Derivative, Notional Amount | €

€ 490,000

Derivative, Notional Amount | €

€ 490,000

Derivative, Forward Exchange Rate

1.2432

Derivative, Cost of Hedge

$ 5,543

Derivative, Inception Date

Apr. 18, 2018

Derivative, Maturity Date

Jun. 1, 2018

Derivative, Exercise Date

May 30, 2018

Treasury Lock [Member] | Designated as Hedging Instrument [Member] | Derivatives in Cash Flow Hedging Relationships [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Amount of Gain (Loss) Recognized in Accumulated OCI on Derivative

$ 507

Net unrecognized gains on terminated derivative instruments expected to be reclassified to earnings

$ 72

Derivative, Notional Amount

$ 25,000

Derivative, Notional Amount

$ 25,000

Series D Notes [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Issuance Date

Oct. 1, 2008

Series F Notes [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Issuance Date

Apr. 1, 2009

2013 Note Purchase Agreement [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Issuance Date

Oct. 1, 2013

Face Amount

$ 250,000

First Closing Notes [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Issuance Date

Oct. 1, 2013

Second Closing Notes [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Issuance Date

Nov. 15, 2013

2016 Note Purchase Agreements [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Issuance Date

Sep. 23, 2016

Face Amount | €

160,000

Series M Notes [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Face Amount | €

40,000

Series N Notes [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Face Amount | €

77,000

Series O Notes [Member]

Derivative Instruments, Gain (Loss) [Line Items]

Face Amount | €

€ 43,000

Derivative Instruments and He65

Derivative Instruments and Hedging Activities (Impact of Derivative Instruments on Earnings) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Income) Expense Recognized in Earnings on Derivative	$ 4,955	$ (18)	$ 4,919	$ (54)
Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative	(23,658)		(23,658)
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings	4,955	(18)	4,919	(54)
Fixed-Rate Cross Currency Interest Rate Contract [Member] | Selling, General and Administrative Expenses [Member] | Derivatives in Cash Flow Hedging Relationships [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Income) Expense Recognized in Earnings on Derivative	3,506		3,506
Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative	(21,823)		(21,823)
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings	3,506		3,506
Floating-Rate Cross Currency Interest Rate Contract [Member] | Selling, General and Administrative Expenses [Member] | Derivatives in Fair Value Hedging Relationships [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Income) Expense Recognized in Earnings on Derivative	1,467		1,467
Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative	(1,835)		(1,835)
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings	1,467		1,467
Treasury Lock [Member] | Interest Expense [Member] | Derivatives in Cash Flow Hedging Relationships [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Income) Expense Recognized in Earnings on Derivative	(18)	(18)	(54)	(54)
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings	$ (18)	$ (18)	$ (54)	$ (54)

Supplemental Statements of Ca66

Supplemental Statements of Cash Flows Information (Schedule of Cash Flow Supplemental Disclosures) (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Supplemental Statements of Cash Flows Information
Interest paid, net of amounts capitalized	$ 24,966	$ 24,879
Income taxes paid	31,443	29,807
Income tax refunds received	1,760	158
Purchases of property, plant and equipment on account	8,438	12,252
Common shares issued from treasury stock to settle employee liabilities	0	1,767
Common shares issued from treasury stock for benefit plans	14,741	14,014
Cashless exercise of stock options	$ 0	$ 1,473

Accounts Receivable (Schedule o

Accounts Receivable (Schedule of Accounts Receivable) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for uncollectible customer amounts	$ (3,668)	$ (3,776)
Accounts receivable	386,110	402,182
Trade Accounts Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	362,459	367,715
Accounts Receivable from Chinese Financial Institution [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross	$ 27,319	$ 38,243

Inventories (Schedule of Invent

Inventories (Schedule of Inventories) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Inventories
Raw Materials	$ 86,677	$ 59,034
Work in progress	135,518	103,790
Component Parts	301,257	262,755
Finished Goods	65,988	47,926
Inventory, net	$ 589,440	$ 473,505

Property, Plant, and Equipmen69

Property, Plant, and Equipment, Net (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment held for sale	$ 8,853		$ 8,853		$ 0
Property, plant and equipment remaining	3,400		3,400
Assets planned to be disposed of as a result of relocation	500		500
Depreciation expense	17,695	$ 14,141	48,276	$ 40,259
Second Campus Rockford Illinois [Member]
Property, Plant and Equipment [Line Items]
Construction in progress	30,198		30,198		49,347
Drake Campus Fort Collins Colorado Member
Property, Plant and Equipment [Line Items]
Construction in progress	2,618		2,618		15,584
Office furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Gross assets acquired on capital leases	1,676		1,676		1,653
Accumulated depreciation on capital lease assets	$ 1,081		$ 1,081		$ 739

Property, Plant, and Equipmen70

Property, Plant, and Equipment, Net (Property, Plant, and Equipment - Net) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2017
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 1,587,840		$ 1,587,840		$ 1,442,896
Less accumulated depreciation	(543,807)		(543,807)		(520,853)
Property, Plant and Equipment, Net, Total	1,044,033		1,044,033		922,043
Depreciation expense	17,695	$ 14,141	48,276	$ 40,259
Capitalized interest	607	$ 567	1,841	$ 1,521
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	92,934		92,934		88,326
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	564,366		564,366		514,453
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	17,827		17,827		16,142
Machinery and Equipment, Excluding Computer and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	654,495		654,495		543,641
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	123,705		123,705		124,723
Office furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	27,567		27,567		24,308
Other Capitalized Property Plant and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	19,326		19,326		19,393
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 87,620		$ 87,620		$ 111,910

Goodwill (Goodwill) (Details)

Goodwill (Goodwill) (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2018USD ($)
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 556,545
Additions	269,433
Effects of Currency Translation	948
Goodwill, Ending Balance	826,926
Aerospace [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	455,423
Effects of Currency Translation	0
Goodwill, Ending Balance	455,423
Industrial [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	101,122
Additions	269,433
Effects of Currency Translation	948
Goodwill, Ending Balance	371,503
Business Acquisition, Acquiree - L'Orange [Member]
Goodwill [Line Items]
Additions	269,433
Business Acquisition, Acquiree - L'Orange [Member] | Industrial [Member]
Goodwill [Line Items]
Additions	$ 269,433

Intangible Assets, Net (Schedul

Intangible Assets, Net (Schedule of Finite-Lived and Indefinite-Lived Intangible Assets by Major Class) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill), Total	$ 1,002,484		$ 1,002,484		$ 443,476
Accumulated Amortization of Finite-Lived Intangible	(294,723)		(294,723)		(271,594)
Net Carrying Amount - Finite-Lived Intangible	643,513		643,513
Intangible Assets, Net (Excluding Goodwill), Total	707,761		707,761		171,882
Amortization expense	11,360	$ 6,439	23,861	$ 19,328
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	64,248		64,248
Process Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	171,589		171,589		99,555
Accumulated Amortization of Finite-Lived Intangible	(72,516)		(72,516)		(66,880)
Net Carrying Amount - Finite-Lived Intangible	99,073		99,073		32,675
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	704,631		704,631		323,187
Accumulated Amortization of Finite-Lived Intangible	(197,890)		(197,890)		(185,562)
Net Carrying Amount - Finite-Lived Intangible	506,741		506,741		137,625
Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	19,480		19,480		19,422
Accumulated Amortization of Finite-Lived Intangible	(18,527)		(18,527)		(18,196)
Net Carrying Amount - Finite-Lived Intangible	953		953		1,226
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	40,885		40,885
Accumulated Amortization of Finite-Lived Intangible	(4,579)		(4,579)
Net Carrying Amount - Finite-Lived Intangible	36,306		36,306
Other Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	1,651		1,651		1,312
Accumulated Amortization of Finite-Lived Intangible	(1,211)		(1,211)		(956)
Net Carrying Amount - Finite-Lived Intangible	440		440		356
Aerospace [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill), Total	358,055		358,055		358,830
Accumulated Amortization of Finite-Lived Intangible	(216,069)		(216,069)		(200,279)
Intangible Assets, Net (Excluding Goodwill), Total	141,986		141,986		158,551
Aerospace [Member] | Process Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	76,372		76,372		76,605
Accumulated Amortization of Finite-Lived Intangible	(53,377)		(53,377)		(49,124)
Net Carrying Amount - Finite-Lived Intangible	22,995		22,995		27,481
Aerospace [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	281,683		281,683		282,225
Accumulated Amortization of Finite-Lived Intangible	(162,692)		(162,692)		(151,155)
Net Carrying Amount - Finite-Lived Intangible	118,991		118,991		131,070
Aerospace [Member] | Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	0		0		0
Accumulated Amortization of Finite-Lived Intangible	0		0		0
Net Carrying Amount - Finite-Lived Intangible	0		0		0
Aerospace [Member] | Other Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	0		0		0
Accumulated Amortization of Finite-Lived Intangible	0		0		0
Net Carrying Amount - Finite-Lived Intangible	0		0		0
Industrial [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill), Total	644,429		644,429		84,646
Accumulated Amortization of Finite-Lived Intangible	(78,654)		(78,654)		(71,315)
Intangible Assets, Net (Excluding Goodwill), Total	565,775		565,775		13,331
Industrial [Member] | Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	64,248		64,248
Industrial [Member] | Process Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	95,217		95,217		22,950
Accumulated Amortization of Finite-Lived Intangible	(19,139)		(19,139)		(17,756)
Net Carrying Amount - Finite-Lived Intangible	76,078		76,078		5,194
Industrial [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	422,948		422,948		40,962
Accumulated Amortization of Finite-Lived Intangible	(35,198)		(35,198)		(34,407)
Net Carrying Amount - Finite-Lived Intangible	387,750		387,750		6,555
Industrial [Member] | Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	19,480		19,480		19,422
Accumulated Amortization of Finite-Lived Intangible	(18,527)		(18,527)		(18,196)
Net Carrying Amount - Finite-Lived Intangible	953		953		1,226
Industrial [Member] | Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	40,885		40,885
Accumulated Amortization of Finite-Lived Intangible	(4,579)		(4,579)
Net Carrying Amount - Finite-Lived Intangible	36,306		36,306
Industrial [Member] | Other Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value - Finite-Lived Intangible	1,651		1,651		1,312
Accumulated Amortization of Finite-Lived Intangible	(1,211)		(1,211)		(956)
Net Carrying Amount - Finite-Lived Intangible	$ 440		$ 440		$ 356

Intangible Assets, Net (Sched73

Intangible Assets, Net (Schedule of Finite-Lived Intangible Assets, Future Amortization Expense) (Details) $ in Thousands	Jun. 30, 2018USD ($)
Intangible Assets, Net
Future Amortization Expense, Remainder of Fiscal Year	$ 20,097
2,019	58,284
2,020	42,879
2,021	39,994
2,022	38,131
Thereafter	444,128
Total Finite-Lived Intangible Assets, Net	$ 643,513

Credit Facilities and Short-ter

Credit Facilities and Short-term Borrowings (Narrative) (Details) - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2018	Jun. 30, 2018	Sep. 30, 2017
Debt And Line Of Credit Facility [Line Items]
Debt financing costs		$ 1,325,000
Foreign Lines of Credit And Overdraft Facilities [Member]
Debt And Line Of Credit Facility [Line Items]
Outstanding borrowings		3,769,000	$ 0
Revolving Credit Agreement [Member]
Debt And Line Of Credit Facility [Line Items]
Maximum borrowing capacity		1,000,000,000
Option to increase maximum borrowings to this amount		$ 1,200,000,000
Line of Credit Facility, Expiration Date		Apr. 1, 2020
Variable Rate Basis	LIBOR
Credit facility effective interest rate on outstanding borrowing		2.87%	2.29%
Outstanding borrowings		$ 374,574,000	$ 32,600,000
Current portion of outstanding borrowings		$ 140,231,000	$ 32,600,000
Minimum [Member] | Revolving Credit Agreement [Member]
Debt And Line Of Credit Facility [Line Items]
Basis Spread On Variable Rate		0.85%
Maximum [Member] | Revolving Credit Agreement [Member]
Debt And Line Of Credit Facility [Line Items]
Basis Spread On Variable Rate		1.65%

Long-term Debt (Narrative) (Det

Long-term Debt (Narrative) (Details) € in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2018	Jun. 30, 2018USD ($)	Jun. 30, 2018EUR (€)	Jun. 30, 2018USD ($)	Sep. 30, 2017USD ($)
Debt Instrument [Line Items]
Face Amount | €			€ 160,000
Debt financing costs		$ 1,325,000
Balance of unamortized debt issuance costs				$ 2,850,000	$ 1,794,000
The Notes [Member]
Debt Instrument [Line Items]
Balance of unamortized debt issuance costs				2,850,000	1,794,000
2013 Note Purchase Agreement [Member]
Debt Instrument [Line Items]
Issuance Date		Oct. 1, 2013
Face Amount				$ 250,000,000
Series J Notes [Member]
Debt Instrument [Line Items]
Effective interest rate			3.58%	3.58%
First Closing Notes [Member]
Debt Instrument [Line Items]
Issuance Date		Oct. 1, 2013
Second Closing Notes [Member]
Debt Instrument [Line Items]
Issuance Date		Nov. 15, 2013
Series D Notes [Member]
Debt Instrument [Line Items]
Issuance Date		Oct. 1, 2008
Series F Notes [Member]
Debt Instrument [Line Items]
Issuance Date		Apr. 1, 2009
2016 Note Purchase Agreements [Member]
Debt Instrument [Line Items]
Issuance Date		Sep. 23, 2016
Face Amount | €			€ 160,000
Series M Notes [Member]
Debt Instrument [Line Items]
Face Amount | €			40,000
Series N Notes [Member]
Debt Instrument [Line Items]
Face Amount | €			77,000
Series O Notes [Member]
Debt Instrument [Line Items]
Face Amount | €			€ 43,000
2018 Note Purchase Agreement [Member]
Debt Instrument [Line Items]
Issuance Date		May 31, 2018
Face Amount				$ 400,000,000
Prepayment, Maximum Percentage of Principal		100.00%
Prepayment, Partial Payment Minimum		$ 1,000,000
Event of Default, Interest Rate Increase			2.00%	2.00%
Series P Notes [Member]
Debt Instrument [Line Items]
Face Amount				$ 85,000,000
Interest rate			4.27%	4.27%
Maturity date		May 30, 2025
Series Q Notes [Member]
Debt Instrument [Line Items]
Face Amount				$ 85,000,000
Interest rate			4.35%	4.35%
Maturity date		May 30, 2027
Series R Notes [Member]
Debt Instrument [Line Items]
Face Amount				$ 75,000,000
Interest rate			4.41%	4.41%
Maturity date		May 30, 2029
Series S Notes [Member]
Debt Instrument [Line Items]
Face Amount				$ 75,000,000
Interest rate			4.46%	4.46%
Maturity date		May 30, 2030
Series T Notes [Member]
Debt Instrument [Line Items]
Face Amount				$ 80,000,000
Interest rate			4.61%	4.61%
Maturity date		May 30, 2033
Foreign Lines of Credit And Overdraft Facilities [Member]
Debt Instrument [Line Items]
Outstanding borrowings				$ 3,769,000	0
Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Variable Rate Basis	LIBOR
Line of Credit Facility, Expiration Date		Apr. 1, 2020
Line of Credit Facility, Maximum Borrowing Capacity				1,000,000,000
Outstanding borrowings				$ 374,574,000	$ 32,600,000
Credit facility effective interest rate on outstanding borrowing			2.87%	2.87%	2.29%
Revolving Credit Agreement [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis Spread On Variable Rate		0.85%
Revolving Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis Spread On Variable Rate		1.65%
Cross Currency Interest Rate Contract [Member] | Series P Notes [Member]
Debt Instrument [Line Items]
Effective interest rate			1.82%	1.82%
Cross Currency Interest Rate Contract [Member] | Series Q Notes [Member]
Debt Instrument [Line Items]
Effective interest rate			2.15%	2.15%
Cross Currency Interest Rate Contract [Member] | Series R Notes [Member]
Debt Instrument [Line Items]
Effective interest rate			2.42%	2.42%
Cross Currency Interest Rate Contract [Member] | Series S Notes [Member]
Debt Instrument [Line Items]
Effective interest rate			2.55%	2.55%
Cross Currency Interest Rate Contract [Member] | Series T Notes [Member]
Debt Instrument [Line Items]
Effective interest rate			2.90%	2.90%

Long-term Debt (Schedule of Lon

Long-term Debt (Schedule of Long-term Debt) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2018	Jun. 30, 2018	Sep. 30, 2017
Debt Instrument [Line Items]
Long-term Debt		$ 1,211,396	$ 580,286
Unamortized debt issuance costs		(2,850)	(1,794)
Current portion of long-term debt		0	0
Long-term debt, excluding current portion		$ 1,211,396	$ 580,286
Series P Notes [Member]
Debt Instrument [Line Items]
Interest rate		4.27%
Maturity date		May 30, 2025
Series P Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		4.27%
Maturity date		May 30, 2025
Long-term Debt		$ 85,000
Series R Notes [Member]
Debt Instrument [Line Items]
Interest rate		4.41%
Maturity date		May 30, 2029
Series R Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		4.41%
Maturity date		May 30, 2029
Long-term Debt		$ 75,000
Series S Notes [Member]
Debt Instrument [Line Items]
Interest rate		4.46%
Maturity date		May 30, 2030
Series S Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		4.46%
Maturity date		May 30, 2030
Long-term Debt		$ 75,000
Series T Notes [Member]
Debt Instrument [Line Items]
Interest rate		4.61%
Maturity date		May 30, 2033
Series T Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		4.61%
Maturity date		May 30, 2033
Long-term Debt		$ 80,000
Series D Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		6.39%	6.39%
Maturity date		Oct. 1, 2018	Oct. 1, 2018
Long-term Debt		$ 100,000	$ 100,000
Series F Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		8.24%	8.24%
Maturity date		Apr. 3, 2019	Apr. 3, 2019
Long-term Debt		$ 43,000	$ 43,000
Series J Notes [Member]
Debt Instrument [Line Items]
Variable interest rate		3.58%
Variable interest rate		3.58%
Series J Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Variable Rate Basis		1.25%	1.25%
Maturity date		Nov. 15, 2020	Nov. 15, 2020
Long-term Debt		$ 50,000	$ 50,000
Series G Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		3.42%	3.42%
Maturity date		Nov. 15, 2020	Nov. 15, 2020
Long-term Debt		$ 50,000	$ 50,000
Series H Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		4.03%	4.03%
Maturity date		Nov. 15, 2023	Nov. 15, 2023
Long-term Debt		$ 25,000	$ 25,000
Series I Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		4.18%	4.18%
Maturity date		Nov. 15, 2025	Nov. 15, 2025
Long-term Debt		$ 25,000	$ 25,000
Series K Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		4.03%	4.03%
Maturity date		Nov. 15, 2023	Nov. 15, 2023
Long-term Debt		$ 50,000	$ 50,000
Series L Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		4.18%	4.18%
Maturity date		Nov. 15, 2025	Nov. 15, 2025
Long-term Debt		$ 50,000	$ 50,000
Series M Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		1.12%	1.12%
Maturity date		Sep. 23, 2026	Sep. 23, 2026
Long-term Debt		$ 46,726	$ 47,270
Series N Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		1.31%	1.31%
Maturity date		Sep. 23, 2028	Sep. 23, 2028
Long-term Debt		$ 89,947	$ 90,995
Series O Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		1.57%	1.57%
Maturity date		Sep. 23, 2031	Sep. 23, 2031
Long-term Debt		$ 50,230	$ 50,815
Series Q Notes [Member]
Debt Instrument [Line Items]
Interest rate		4.35%
Maturity date		May 30, 2027
Series Q Notes [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate		4.35%
Maturity date		May 30, 2027
Long-term Debt		$ 85,000
Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Variable Rate Basis	LIBOR
Revolving Credit Agreement [Member] | Domestic Line Of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 234,343
Revolving Credit Agreement [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis Spread On Variable Rate		0.85%
Revolving Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis Spread On Variable Rate		1.65%

Accrued Liabilities (Narrative)

Accrued Liabilities (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 0	$ 0	$ 17,013	$ 0
Loss Reserve On Contractual Lease Commitments [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash adjustments		$ (2,322)		$ (2,322)
Loss reserve, noncurrent portion	$ 2,966		2,966			$ 3,927
Duarte Relocation Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			12,504
Restructuring and Related Cost, Expected Cost Remaining					$ 12,000
Non-cash adjustments			0
Industrial Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			4,509
Non-cash adjustments			$ 0

Accrued Liabilities (Accrued Li

Accrued Liabilities (Accrued Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2016
Accrued Liabilities [Line Items]
Salaries and other member benefits	$ 63,743		$ 91,285
Warranties	19,802	$ 13,283	13,597	$ 14,298	$ 15,041	$ 15,993
Interest payable	8,856		9,626
Current portion of acquired performance obligations and unfavorable contracts	1,627		1,627
Accrued retirement benefits	3,529		2,413
Current portion of deferred income from JV formation (Note 4)	6,414		6,451
Deferred revenues	2,689		4,625
Taxes, other than income	18,012		14,401
Other	19,720		9,704
Accrued liabilities	162,211		155,072
Loss Reserve On Contractual Lease Commitments [Member]
Accrued Liabilities [Line Items]
Restructuring Reserve, Current	1,245		$ 1,343
Employee Severance [Member]
Accrued Liabilities [Line Items]
Restructuring Reserve, Current	$ 16,574

Accrued Liabilities (Warranties

Accrued Liabilities (Warranties) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accrued Liabilities
Warranties, beginning of period	$ 13,283	$ 15,041	$ 13,597	$ 15,993
Warranty Expense, net of recoveries	2,696	2,746	3,000	6,808
Increases due to acquisition of L'Orange	6,045		6,045
Reductions for settling warranties	(1,838)	(3,746)	(2,670)	(8,528)
Foreign currency exchange rate changes	(384)	257	(170)	25
Warranties, end of period	$ 19,802	$ 14,298	$ 19,802	$ 14,298

Accrued Liabilities (Loss Reser

Accrued Liabilities (Loss Reserve Activity) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2017
Restructuring Cost and Reserve [Line Items]
Charges (gains)	$ 0	$ 0	$ 17,013	$ 0
Loss Reserve On Contractual Lease Commitments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges, beginning of period	4,478	8,395	5,270	9,242
Payments, net of sublease income	(267)	(382)	(1,059)	(1,229)
Non-cash adjustments		(2,322)		(2,322)
Restructuring charges, end of period	4,211	$ 5,691	4,211	$ 5,691
Loss reserve, noncurrent portion	$ 2,966		$ 2,966		$ 3,927

Accrued Liabilities (Restructur

Accrued Liabilities (Restructuring Charges Activity) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Restructuring Cost and Reserve [Line Items]
Charges (gains)	$ 0	$ 0	$ 17,013	$ 0
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges, beginning of period			0
Charges (gains)			17,013
Cash receipts (payments)			(439)
Non-cash activity			0
Restructuring charges, end of period	16,574		16,574
Duarte Relocation Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges, beginning of period			0
Charges (gains)			12,504
Non-cash activity			0
Restructuring charges, end of period	12,504		12,504
Industrial Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges, beginning of period			0
Charges (gains)			4,509
Cash receipts (payments)			(439)
Non-cash activity			0
Restructuring charges, end of period	$ 4,070		$ 4,070

Other Liabilities (Details)

Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Other Liabilities [Line Items]
Net accrued retirement benefits, less amounts recognized within accrued liabilities	$ 92,075	$ 52,211
Noncurrent portion of deferred income from JV formation	237,724	236,896
Total unrecognized tax benefits, net of offsetting adjustments	9,910	20,949
Noncurrent income taxes payable	23,920	0
Acquired unfavorable contracts	591	2,076
Deferred economic incentives	13,422	14,574
Other	12,363	14,165
Other liabilities	416,498	344,798
Loss Reserve On Contractual Lease Commitments [Member]
Other Liabilities [Line Items]
Loss reserve, noncurrent portion	2,966	$ 3,927
Cross Currency Interest Rate Contract [Member]
Other Liabilities [Line Items]
Derivative liability	$ 23,527

Other (Income) Expense, Net (De

Other (Income) Expense, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other (Income) Expense, Net
Equity interest in losses (earnings) of the JV (Note 4)	$ (738)	$ 432	$ (2,340)	$ (634)
Net (gain) loss on sales of assets	50	64	(404)	(3,598)
Rent income	(28)	(53)	(99)	(196)
Net (gain) loss on investments in deferred compensation program	(257)	(523)	(957)	(1,252)
Loss on forward options derivative instrument (Note 7)	5,543		5,543
Other	(373)	(370)	(731)	(673)
Other (income) expense, net	$ 4,197	$ (450)	$ 1,012	$ (6,353)

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended		12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Mar. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2018	Sep. 30, 2017
Income Taxes [Line Items]
Net discrete impacts of the enactment of the Tax Act	$ 3,671		$ 14,778		$ 18,449
Total Accrued Transition Tax Liability	26,000				26,000
Current Accrued Transition Tax Liability	2,080				2,080
Noncurrent Accrued Transition Tax Liability	23,920				23,920
Noncurrent income taxes payable	23,920				23,920		$ 0
Statutory tax rate		35.00%		21.00%		24.50%
Unrecognized Tax Benefits	9,710				9,710		20,132
Estimated decrease in liability for unrecognized tax benefits	84				84
Unrecognized tax benefits that, if recognized, would affect the effective tax rate	2,741				2,741		9,677
Accrued interest and penalties	$ 255				$ 255		$ 1,123
Scenario, Forecast [Member]
Income Taxes [Line Items]
Statutory tax rate					21.00%

Income Taxes (Net Discrete Impa

Income Taxes (Net Discrete Impact of Tax Act) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2018
Income Taxes
Transition Tax			$ 26,000
Impact on U.S. deferred tax assets and liabilities			(16,260)
Net changes in deferred tax liability associated with anticipated repatriation taxes			5,038
Income Tax Expense (Benefit) Related to Discrete Impacts in Tax Law	$ 3,671	$ 14,778	$ 18,449

Income Taxes (Tax Expense and E

Income Taxes (Tax Expense and Effective Tax Rate) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Taxes
Earnings before income taxes	$ 54,417	$ 68,687	$ 140,551	$ 165,982
Income tax expense	$ 5,300	$ 15,061	$ 34,685	$ 27,703
Effective tax rate	9.70%	21.90%	24.70%	16.70%

Retirement Benefits (Narrative)

Retirement Benefits (Narrative) (Details) - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 01, 2018
Defined Benefit Plan Disclosure [Line Items]
Value of Company Stock Contributed to Defined Contribution Benefit Plans			$ 14,741,000	$ 14,014,000
Treasury Stock Issued During Period, Shares, Employee Benefit Plans			202	199
Total stockholders equity
Defined Benefit Plan Disclosure [Line Items]
Value of Company Stock Contributed to Defined Contribution Benefit Plans			$ 14,741,000	$ 14,014,000
Treasury Stock at Cost [Member]
Defined Benefit Plan Disclosure [Line Items]
Value of Company Stock Contributed to Defined Contribution Benefit Plans			$ 7,584,000	$ 7,513,000
Treasury Stock Issued During Period, Shares, Employee Benefit Plans			202	199
Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions paid - pensions	$ 227,000	$ 99,000	$ 658,000	$ 565,000
Net periodic retirement (benefit) cost	(626,000)	(244,000)	(2,215,000)	(729,000)
Defined Benefit Pension Plan [Member] | Business Acquisition, Acquiree - L'Orange [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension obligation assumed in L'Orange aquisition			38,998,000
Current portion of pension obligation					$ 1,143,000
Contributions paid - pensions			54,000
Net periodic retirement (benefit) cost			168,000
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic retirement (benefit) cost	276,000	325,000	502,000	976,000
UNITED STATES | Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions paid - pensions	0	0	0	0
Net periodic retirement (benefit) cost	(666,000)	(215,000)	(1,995,000)	(645,000)
Duarte Plan, Defined Benefit [Member] | Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit, Lump Sum Buyout Benefits Paid, Current Year				670,000
Defined Benefit, Lump Sum Buyout Benefits Paid, Expected			0
Foreign Plan [Member] | Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contributions paid - pensions	227,000	99,000	658,000	565,000
Net periodic retirement (benefit) cost	$ 40,000	$ (29,000)	$ (220,000)	$ (84,000)

Retirement Benefits (Schedule o

Retirement Benefits (Schedule of Costs of Retirement Plans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Retirement Benefits [Abstract]
Company Costs - Defined Contribution	$ 8,262	$ 8,039	$ 24,858	$ 23,790
Company Contributions - Multiemployer plan	$ 86	$ 73	$ 253	$ 220

Retirement Benefits (Schedule89

Retirement Benefits (Schedule of Net Periodic Benefit Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1	$ 4	$ 5	$ 11
Interest cost	291	311	874	933
Amortization of: Net (gains) losses	24	50	72	151
Amortization of: Prior service (benefit) cost	(40)	(40)	(119)	(119)
Curtailment (gain) loss			(330)
Net periodic retirement (benefit) cost	276	325	502	976
Contributions paid - other postretirement plans	595	592	1,830	2,011
Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	693	611	1,838	1,827
Interest cost	1,887	1,744	5,562	5,215
Expected return on plan assets	(3,607)	(3,288)	(10,817)	(9,832)
Amortization of: Net (gains) losses	224	594	670	1,774
Amortization of: Prior service (benefit) cost	177	95	532	287
Net periodic retirement (benefit) cost	(626)	(244)	(2,215)	(729)
Contributions paid - pensions	227	99	658	565
Defined Benefit Pension Plan [Member] | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Service cost	410	419	1,232	1,256
Interest cost	1,501	1,439	4,503	4,318
Expected return on plan assets	(2,904)	(2,632)	(8,711)	(7,897)
Amortization of: Net (gains) losses	150	464	449	1,391
Amortization of: Prior service (benefit) cost	177	95	532	287
Net periodic retirement (benefit) cost	(666)	(215)	(1,995)	(645)
Contributions paid - pensions	0	0	0	0
Defined Benefit Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	283	192	606	571
Interest cost	386	305	1,059	897
Expected return on plan assets	(703)	(656)	(2,106)	(1,935)
Amortization of: Net (gains) losses	74	130	221	383
Amortization of: Prior service (benefit) cost	0	0	0	0
Net periodic retirement (benefit) cost	40	(29)	(220)	(84)
Contributions paid - pensions	$ 227	$ 99	$ 658	$ 565

Retirement Benefits (Schedule90

Retirement Benefits (Schedule of estimated remaining cash contributions) (Details) $ in Thousands	Jun. 30, 2018USD ($)
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in the currect fiscal year	$ 2,041
UNITED STATES | Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in the currect fiscal year	0
UNITED KINGDOM | Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in the currect fiscal year	155
JAPAN | Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in the currect fiscal year	0
GERMANY | Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in the currect fiscal year	$ 329

Stockholders' Equity (Narrative

Stockholders' Equity (Narrative) (Details) - USD ($)	3 Months Ended			6 Months Ended	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2016	Mar. 31, 2018	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payments for repurchases of common stock					$ 0	$ 61,782,000
Number of shares available for future grants	1,300				1,300
Exercise prices of stock options outstanding	$ 45.20			$ 44.62	$ 45.20		$ 39.58
Total unrecognized compensation cost related to non-vested stock-based compensation arrangements	$ 10,938,000				$ 10,938,000
Unrecognized compensation cost is expected to be recognized over a weighted-average period					2 years
Forfeiture rate, Board of Directors	0.00%				0.00%
Forfeiture rate, non-Board of Directors	9.00%				9.00%
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation award conditionally awarded date			Oct. 3, 2016
Stock-based compensation award conditionally awarded date approved			Jan. 25, 2017
Vested contractual term, in years					10 years
Vesting rate					25.00%
Employee stock-based compensation expense	$ 1,858,000	$ 1,817,000			$ 16,292,000	15,580,000
Vesting period, in years				4 years
2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock-based compensation expense			$ 0
2017 Authorization [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized repurchase amount	$ 500,000,000				$ 500,000,000
Payments for repurchases of common stock				$ 0		$ 61,229,000
Repurchase period in years					3 years
Purchases of treasury stock, number of shares						886,000
10b5-1 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchases of treasury stock, number of shares						350,000
10b-18 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchases of treasury stock, number of shares						536,000

Stockholders' Equity (Schedule

Stockholders' Equity (Schedule of Assumptions Used in Estimate of Fair Value of Stock Option Awards) (Details) - $ / shares	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date market value of Woodward stock	$ 78.91	$ 69.45
Weighted-average exercise price per share	$ 78.91	$ 62.64
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term	6 years 4 months 24 days	6 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term	8 years 8 months 12 days	8 years 8 months 12 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated dividend yield		0.70%
Stock Options [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated volatility	29.10%	31.50%
Estimated dividend yield	0.60%
Risk-free interest rate	2.10%	2.20%
Stock Options [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated volatility	32.70%	33.70%
Estimated dividend yield	0.80%
Risk-free interest rate	2.80%	2.50%

Stockholders' Equity (Activity

Stockholders' Equity (Activity for Stock Option Awards) (Details) - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Stock-Based Compensation
Number of options, beginning balance	5,880	5,236
Weighted Average Exercise Price Per Share, beginning balance	$ 44.62	$ 39.58
Options granted, Number of options		750
Options granted, Weighted Average Exercise Price Per Share		$ 78.91
Options exercised, Number of options	(158)	(255)
Options exercised, Weighted Average Exercise Price Per Share	$ 22.32	$ 27.81
Options forfeited, Number of options	(15)	(24)
Options forfeited, Weighted Average Exercise Price Per Share	$ 59.97	$ 58.27
Number of options, ending balance	5,707	5,707
Weighted Average Exercise Price Per Share, ending balance	$ 45.20	$ 45.20

Stockholders' Equity (Changes i

Stockholders' Equity (Changes in Nonvested Stock Options) (Details) - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Stock-Based Compensation
Number of Options, beginning balance	2,022	2,072
Weighted-Average Grant Date Fair Value Per Share, beginning balance	$ 21.63	$ 18.61
Options granted, Number of options		750
Options granted, Weighted-Average Grant Date Fair Value Per Share		$ 25.66
Options vested, Number of options		(791)
Options vested, Weighted-Average Grant Date Fair Value Per Share		$ 17.57
Options forfeited, Number of options	(15)	(24)
Options forfeited, Weighted-Average Grant Date Fair Value Per Share	$ 20.85	$ 20.45
Number of Options, ending balance	2,007	2,007
Weighted-Average Grant Date Fair Value Per Share, ending balance	$ 21.64	$ 21.64

Stockholders' Equity (Stock Opt

Stockholders' Equity (Stock Options Vested, Or Expected to Vest and Are Exercisable) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017
Stock-Based Compensation
Options outstanding, Number of options	5,707	5,880	5,236
Options outstanding, Weighted-Average Exercise Price	$ 45.20	$ 44.62	$ 39.58
Options outstanding, Weighted-Average Remaining Life in Years	5 years 9 months 18 days
Options outstanding, Aggregate Intrinsic Value	$ 182,230
Options vested and exercisable, Number of options	3,699
Options vested and exercisable, Weighted-Average Exercise Price Per Share	$ 36.25
Options vested and exercisable, Weighted-Average Remaining Life in Years	4 years 6 months
Options vested and exercisable, Aggregate Intrinsic Value	$ 150,207
Options vested and expected to vest, Number of options	5,628
Options vested and expected to vest, Weighted-Average Exercise Price Per Share	$ 44.89
Options vested and to expected vest, Weighted-Average Remaining Life in Years	5 years 8 months 12 days
Options vested and expected to vest, Aggregate Intrinsic Value	$ 181,384

Segment Information (Narrative)

Segment Information (Narrative) (Details)	9 Months Ended
	Jun. 30, 2018segment
Segment Information
Number of Reportable Segments	2

Segment Information (Consolidat

Segment Information (Consolidated Net Sales and Earnings by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Net sales	$ 588,117	$ 548,622		$ 1,606,514	$ 1,491,897
Interest expense, net	(7,536)	(6,411)		(20,139)	(19,162)
Consolidated earnings before income taxes	54,417	68,687		140,551	165,982
Restructuring Costs			$ 17,013	17,013
Aerospace [Member]
Segment Reporting Information [Line Items]
Net sales	404,612	355,992		1,096,860	943,198
Segment earnings (loss)	82,199	67,173		198,721	172,277
Industrial [Member]
Segment Reporting Information [Line Items]
Net sales	183,505	192,630		509,654	548,699
Segment earnings (loss)	10,450	20,870		40,031	55,957
Unallocated Corporate [Member]
Segment Reporting Information [Line Items]
Segment earnings (loss)	$ (30,696)	$ (12,945)		$ (78,062)	$ (43,090)

Segment Information (Consolid98

Segment Information (Consolidated Total Assets by Segment) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Assets	$ 3,804,064	$ 2,757,109
Other unallocated assets	254,978	234,301
Property, plant and equipment, net	1,044,033	922,043
Aerospace [Member]
Segment Reporting Information [Line Items]
Assets	1,744,825	1,722,789
Industrial [Member]
Segment Reporting Information [Line Items]
Assets	1,677,724	695,264
Unallocated Corporate [Member]
Segment Reporting Information [Line Items]
Property, plant and equipment, net	$ 126,537	$ 104,755

Subsequent Events (Narrative) (

Subsequent Events (Narrative) (Details)	Jul. 31, 2018$ / shares
Subsequent Events [Abstract]
Dividends Payable, Date Declared	Jul. 31, 2018
Dividends Payable, Amount Per Share	$ 0.1425
Dividends Payable, Date to be Paid	Sep. 4, 2018
Dividends Payable, Date of Record	Aug. 21, 2018

Uncategorized Items - wwd-20180

Label	Element	Value
Revolving Credit Agreement [Member]
Debt Issuance Costs, Line of Credit Arrangements, Net	us-gaap_DebtIssuanceCostsLineOfCreditArrangementsNet	$ 2,259,000
Debt Issuance Costs, Line of Credit Arrangements, Net	us-gaap_DebtIssuanceCostsLineOfCreditArrangementsNet	$ 1,603,000