WD-40 (WDFC) 10-K 23 Oct 17 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Aug. 31, 2017	Oct. 18, 2017	Feb. 28, 2017
Document Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Aug. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Trading Symbol	wdfc
Entity Registrant Name	WD 40 CO
Entity Central Index Key	105,132
Current Fiscal Year End Date	--08-31
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 1,490,334,448
Entity Common Stock, Shares Outstanding		13,964,343

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Aug. 31, 2017	Aug. 31, 2016
Current assets:
Cash and cash equivalents		$ 37,082	$ 50,891
Short-term investments		80,166	57,633
Trade accounts receivable, less allowance for doubtful accounts of $240 and $394 at August 31, 2017 and 2016, respectively		64,259	64,680
Inventories		35,340	31,793
Other current assets		8,007	4,475
Total current assets		224,854	209,472
Property and equipment, net	[1]	29,439	11,545
Goodwill		95,597	95,649
Other intangible assets, net		16,244	19,191
Deferred tax assets, net		495	621
Other assets		3,088	3,190
Total assets		369,717	339,668
Current liabilities:
Accounts payable		20,898	18,690
Accrued liabilities		18,997	15,757
Accrued payroll and related expenses		14,222	20,866
Revolving credit facility, current portion		20,000
Income taxes payable		1,306	3,381
Total current liabilities		75,423	58,694
Revolving credit facility		134,000	122,000
Deferred tax liabilities, net		18,949	16,365
Other long-term liabilities		1,958	2,214
Total liabilities		230,330	199,273
Commitments and Contingencies (Note 11)
Shareholders' equity:
Common stock - authorized 36,000,000 shares, $0.001 par value; 19,688,238 and 19,621,820 shares issued at August 31, 2017 and 2016, respectively; and 13,984,183 and 14,208,338 shares outstanding at August 31, 2017 and 2016, respectively		20	20
Additional paid-in capital		150,692	145,936
Retained earnings		315,764	289,642
Accumulated other comprehensive income (loss)		(28,075)	(27,298)
Common stock held in treasury, at cost - 5,704,055 and 5,413,482 shares at August 31, 2017 and 2016, respectively		(299,014)	(267,905)
Total shareholders' equity		139,387	140,395
Total liabilities and shareholders' equity		$ 369,717	$ 339,668
[1]	Includes tangible assets and property and equipment, net, attributed to the geographic location in which such assets are located.

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Aug. 31, 2017	Aug. 31, 2016
Consolidated Balance Sheets [Abstract]
Trade and other accounts receivable, allowance for doubtful accounts	$ 240	$ 394
Common stock, shares authorized	36,000,000	36,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares issued	19,688,238	19,621,820
Common stock, shares outstanding	13,984,183	14,208,338
Treasury stock, shares	5,704,055	5,413,482

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Consolidated Statements Of Operations [Abstract]
Net sales	$ 380,506	$ 380,670	$ 378,150
Cost of products sold	166,621	166,301	177,972
Gross profit	213,885	214,369	200,178
Operating expenses:
Selling, general and administrative	114,560	117,767	108,873
Advertising and sales promotion	20,537	22,278	22,876
Amortization of definite-lived intangible assets	2,879	2,976	3,039
Total operating expenses	137,976	143,021	134,788
Income from operations	75,909	71,348	65,390
Other income (expense):
Interest income	508	683	584
Interest expense	(2,582)	(1,703)	(1,205)
Other income (expense), net	787	2,461	(1,659)
Income before income taxes	74,622	72,789	63,110
Provision for income taxes	21,692	20,161	18,303
Net income	$ 52,930	$ 52,628	$ 44,807
Earnings per common share:
Basic	$ 3.73	$ 3.65	$ 3.05
Diluted	$ 3.72	$ 3.64	$ 3.04
Shares used in per share calculations:
Basic	14,089	14,332	14,582
Diluted	14,123	14,379	14,649

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 52,930	$ 52,628	$ 44,807
Other comprehensive loss:
Foreign currency translation adjustment	(777)	(18,576)	(9,825)
Total comprehensive income	$ 52,153	$ 34,052	$ 34,982

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Beginning balance at Aug. 31, 2014	$ 19	$ 136,212	$ 237,596	$ 1,103	$ (205,515)	$ 169,415
Beginning balance, shares at Aug. 31, 2014	19,464,310				4,709,948
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes	$ 1	1,449				1,450
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes, shares	82,578
Stock-based compensation		2,782				2,782
Tax benefits from settlements of stock-based equity awards		1,208				1,208
Cash dividends			(21,720)			(21,720)
Acquisition of treasury stock					$ (30,259)	(30,259)
Acquisition of treasury stock, shares					386,450
Foreign currency translation adjustment				(9,825)		(9,825)
Net income			44,807			44,807
Ending balance at Aug. 31, 2015	$ 20	141,651	260,683	(8,722)	$ (235,774)	157,858
Ending balance, shares at Aug. 31, 2015	19,546,888				5,096,398
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes		(1,434)				(1,434)
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes, shares	74,932
Stock-based compensation		3,655				3,655
Tax benefits from settlements of stock-based equity awards		2,064				2,064
Cash dividends			(23,669)			(23,669)
Acquisition of treasury stock					$ (32,131)	(32,131)
Acquisition of treasury stock, shares					317,084
Foreign currency translation adjustment				(18,576)		(18,576)
Net income			52,628			52,628
Ending balance at Aug. 31, 2016	$ 20	145,936	289,642	(27,298)	$ (267,905)	$ 140,395
Ending balance, shares at Aug. 31, 2016	19,621,820				5,413,482	14,208,338
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes		(921)				$ (921)
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes, shares	66,418
Stock-based compensation		4,138				4,138
Tax benefits from settlements of stock-based equity awards		1,539				1,539
Cash dividends			(26,808)			(26,808)
Acquisition of treasury stock					$ (31,109)	(31,109)
Acquisition of treasury stock, shares					290,573
Foreign currency translation adjustment				(777)		(777)
Net income			52,930			52,930
Ending balance at Aug. 31, 2017	$ 20	$ 150,692	$ 315,764	$ (28,075)	$ (299,014)	$ 139,387
Ending balance, shares at Aug. 31, 2017	19,688,238				5,704,055	13,984,183

CONSOLIDATED STATEMENTS OF SHA7

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Consolidated Statements Of Shareholders' Equity [Abstract]
Cash dividends, per share	$ 1.89	$ 1.64	$ 1.48

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Operating activities:
Net income	$ 52,930	$ 52,628	$ 44,807
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,769	6,465	6,464
Net gains on sales and disposals of property and equipment	(115)	(75)	(71)
Deferred income taxes	1,608	(2,227)	(1,334)
Excess tax benefits from settlements of stock-based equity awards	(1,539)	(2,064)	(1,205)
Stock-based compensation	4,138	3,655	2,782
Unrealized foreign currency exchange losses (gains), net	364	(986)	2,086
Provision for bad debts	(138)	52	302
Changes in assets and liabilities:
Trade accounts receivable	482	(9,936)	(314)
Inventories	(3,487)	(1,001)	2,037
Other assets	(3,514)	1,557	1,731
Accounts payable and accrued liabilities	2,827	2,871	(2,464)
Accrued payroll and related expenses	(8,328)	5,486	(2,722)
Income taxes payable	605	4,235	2,737
Other long-term liabilities	(265)	(56)	228
Net cash provided by operating activities	52,337	60,604	55,064
Investing activities:
Purchases of property and equipment	(20,150)	(4,354)	(5,784)
Proceeds from sales of property and equipment	430	301	333
Acquisition of business			(4,117)
Purchases of short-term investments	(27,136)	(24,899)	(10,575)
Maturities of short-term investments	4,565	8,032	3,192
Net cash used in investing activities	(42,291)	(20,920)	(16,951)
Financing activities:
Treasury stock purchases	(31,109)	(32,131)	(30,259)
Dividends paid	(26,808)	(23,669)	(21,720)
Proceeds from issuance of common stock	775	1,200	2,111
Excess tax benefits from settlements of stock-based equity awards	1,539	2,064	1,205
Net proceeds from revolving credit facility	32,000	14,000	10,000
Net cash used in financing activities	(23,603)	(38,536)	(38,663)
Effect of exchange rate changes on cash and cash equivalents	(252)	(4,153)	(3,357)
Net decrease in cash and cash equivalents	(13,809)	(3,005)	(3,907)
Cash and cash equivalents at beginning of period	50,891	53,896	57,803
Cash and cash equivalents at end of period	37,082	50,891	53,896
Cash paid for:
Interest	2,625	1,573	1,168
Income taxes, net of tax refunds received	$ 21,933	$ 16,494	$ 15,414

The Company

The Company	12 Months Ended
	Aug. 31, 2017
The Company [Abstract]
The Company	Note 1. The Company  WD-40 Company (“the Company”), based in San Diego, California, is a global marketing organization dedicated to creating positive lasting memories by developing and selling products that solve problems in workshops, factories and homes around the world. The Company markets its maintenance products and its homecare and cleaning products under the following well-known brands: WD-40®, 3-IN-ONE®, GT85®, X-14®, 2000 Flushes®, Carpet Fresh®, no vac®, Spot Shot®, 1001®, Lava® and Solvol®. Currently included in the WD-40 brand are the WD-40 Multi-Use Product and the WD-40 Specialist® and WD-40 BIKE® product lines .  The Company’s brands are sold in various locations around the world. Maintenance products are sold worldwide in markets throughout North, Central and South America, Asia, Australia, Europe, the Middle East and Africa. Homecare and cleaning products are sold primarily in North America, the United Kingdom (“U.K.”) and Australia. The Company’s products are sold primarily through mass retail and home center stores, warehouse club stores, grocery stores, hardware stores, automotive parts outlets, sport retailers, independent bike dealers, online retailers and industrial distributors and suppliers .

Basis Of Presentation And Summa

Basis Of Presentation And Summary Of Significant Accounting Policies	12 Months Ended
	Aug. 31, 2017
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Basis Of Presentation And Summary Of Significant Accounting Policies	Note 2. Basis of Presentation and Summary of Significant Accounting Policies  Basis of Consolidation  The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.  Use of Estimates  The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates. Supplier Risk The Company relies on a limited number of suppliers, including single or sole source suppliers for certain of its raw materials, packaging, product components and other necessary supplies. Where possible and where it makes business sense, the Company works with secondary or multiple suppliers to qualify additional supply sources. To date, the Company has been able to obtain adequate supplies of these materials which are used in the production of its maintenance products and homecare and cleaning products in a timely manner from existing sources.  Cash and Cash Equivalents  Cash equivalents are highly liquid investments purchased with an original maturity of three months or less.  Short-term Investments  The Company's short-term investments consist of term deposits and callable time deposits . These short-term investments had a carrying value of $80.2 million and $ 57 . 6 million at August 31, 201 7 and 201 6 , respectively. The term deposits are subject to penalty for early redemption before their maturity , and the callable time deposits require a notice before redemption . Trade Accounts Receivable and Allowance for Doubtful Accounts  Trade accounts receivable are recorded at the invoiced amount and do not bear interest. The allowance for doubtful accounts is the Company’s best estimate of the amount of probable credit losses in existing accounts receivable. The Company determines the allowance for doubtful accounts based on historical write-off experience and the identification of specific balances deemed uncollectible. Trade accounts receivable are charged against the allowance when the Company believes it is probable that the trade accounts receivable will not be recovered. The Company does not have any off-balance sheet credit exposure related to its customers. Allowance for doubtful accounts related to the Company’s trade accounts receivable were not significant at August 31, 201 7 and 201 6 .    Inventories  Inventories are stated at the lower of cost or market and cost is determined based on a first-in, first-out method or, for a portion of raw materials inventory, the average cost method. When necessary, the Company adjusts the carrying value of its inventory to the lower of cost or market, including any costs to sell or dispose of such inventory. Appropriate consideration is given by the Company to obsolescence, excessive inventory levels, product deterioration and other factors when evaluating net realizable value for the purposes of determining the lower of cost or market.  Included in inventories are amounts for certain raw materials and components that the Company has provided to its third-party contract manufacturers but that remain unpaid to the Company as of the balance sheet date. The Company’s contract manufacturers package products to the Company’s specifications and, upon order from the Company, ship ready-to-sell inventory to either the Company’s third-party distribution centers or directly to its customers. The Company transfers certain raw materials and components to these contract manufacturers for use in the manufacturing process. Contract manufacturers are obligated to pay the Company for these raw materials and components upon receipt. Amounts receivable from the contract manufacturers as of the balance sheet date related to transfers of these raw materials and components by the Company to its contract manufacturers are considered product held at third-party contract manufacturers and are included in inventories in the accompanying consolidated balance sheets.  Property and Equipment  Property and equipment is stated at cost. Depreciation is computed using the straight-line method based upon estimated useful lives of ten to forty years for buildings and improvements, three to fifteen years for machinery and equipment, three to five years for vehicles , three to ten years for furniture and fixtures and three to five years for software and computer equipment. Depreciation expense totaled $3.9 million, $3.5 million and $3.4 million for fiscal years 201 7 , 2016 and 2015, respectively. These amounts include factory depreciation expense which is recognized as cost of products sold and totaled $1.1 million for fiscal year 201 7 and $0.8 million for each of the fiscal years ended August 31 , 2016 and 2015 . Software The Company capitalizes costs related to computer software obtained or developed for internal use. Software obtained for internal use has generally been enterprise-level business and finance software that the Company customizes to meet its specific operational needs. Costs incurred in the application development phase are capitalized and amortized over their useful lives, which are generally three to five years.  Goodwill  Goodwill represents the excess of the purchase price over the fair value of tangible and intangible assets acquired. The carrying value of goodwill is reviewed for possible impairment in accordance with the authoritative guidance on goodwill, intangibles and other. The Company assesses possible impairments to goodwill at least annually during its second fiscal quarter and otherwise when events or changes in circumstances indicate that an impairment condition may exist. In performing the annual impairment test of its goodwill, the Company considers the fair value concepts of a market participant and the highest and best use for its intangible assets. In addition to the annual impairment test, goodwill is evaluated each reporting period to determine whether events and circumstances would more likely than not reduce the fair value of a reporting unit below its carrying value.  When testing goodwill for impairment, the Company first assess es qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. If, after assessing qualitative factors, the Company determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing additional quantitative tests is unnecessary. Otherwise , a two-step quantitative test is performed to identify the potential impairment and to measure the amount of goodwill impairment, if any. Any required impairment losses are recorded as a reduction in the carrying amount of the related asset and charged to results of operations. No goodwill impairments were ident ified by the Company during fiscal years 201 7 , 201 6 and 201 5.  Long-lived Assets  The Company’s long-lived assets consist of property and equipment and definite-lived intangible assets. Long-lived assets are depreciated or amortized, as applicable, on a straight-line basis over their estimated useful lives. The Company assesses potential impairments to its long-lived assets when there is evidence that events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable and/or its remaining useful life may no longer be appropriate. Any required impairment loss would be measured as the amount by which the asset’s carrying amount exceeds its fair value, which is the amount at which the asset could be bought or sold in a current transaction between willing market participants and would be recorded as a reduction in the carrying amount of the related asset and a charge to results of operations. An impairment loss would be recognized when the sum of the expected future undiscounted net cash flows is less than the carrying amount of the asset. No impairments to its long-lived assets were identified by the Company during fiscal years 201 7, 2016 and 201 5 .  Fair Value of Financial Instruments  Accounting Standards Codification (“ASC”) 820, “ Fair Value Measurements and Disclosures” , defines fair value as the exchange price that would be received for an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company categorizes its financial assets and liabilities measured at fair value into a hierarchy that categorizes fair value measurements into the following three levels based on the types of inputs used in measuring their fair value:  Level 1: Observable inputs such as quoted market prices in active markets for identical assets or liabilities; Level 2: Observable market-based inputs or observable inputs that are corroborated by market data; and Level 3: Unobservable inputs reflecting the Company’s own assumptions.  Under fair value accounting, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. As of August 31, 201 7 , the Company had no assets or liabilities that are measured at fair value in the financial statements on a recurring basis, with the exception of the foreign currency forward contracts, which are classified as Level 2 within the fair value hierarchy. The carrying values of cash equivalents, short-term investments and short-term borrowings are recorded at cost, which approximates their fair values primarily due to their short-term maturities and are classified as Level 2 within the fair value hierarchy. In addition, the carrying value of long-term borrowings on the Company’s consolidated balance sheets approximate fair value and is also classified as Level 2 within the fair value hierarchy. During the fiscal years ended August 31, 2017, 2016 and 2015, the Company did not record any significant nonrecurring fair value measurements for assets or liabilities in periods subsequent to their initial recognition.  Concentration of Credit Risk  Financial instruments, which potentially subject the Company to significant concentrations of credit risk, consist principally of cash and cash equivalents, short-term investments and trade accounts receivable. The Company’s policy is to place its cash in high credit quality financial institutions, in investments that include demand deposits, term deposits and callable time deposits. The Company’s trade accounts receivable are derived from customers located in North America, South America, Asia-Pacific, Europe, the Middle East, Africa and India. The Company limits its credit exposure from trade accounts receivable by performing on-going credit evaluations of customers, as well as insuring its trade accounts receivable in selected markets .  Insurance Coverage  The Company carries insurance policies to cover insurable risks such as property damage, business interruption, product liability, workers’ compensation and other risks, with coverage and other terms that it believes to be adequate and appropriate. These policies may be subject to applicable deductible or retention amounts, coverage limitations and exclusions. The Company does not maintain self-insurance with respect to its material risks; therefore, the Company has not provided for self-insurance reserves as of August 31, 201 7 and 201 6 .  Revenue Recognition and Sales Incentives  Sales are recognized as revenue at the time of delivery to the customer when risks of loss and title have passed. Sales are recorded net of allowances for damaged goods and other sales returns, sales incentives, trade promotions and cash discounts.  The Company records the costs of promotional activities such as sales incentives, trade promotions, coupon offers and cash discounts that are given to its customers as a reduction of sales in its consolidated statements of operations. The Company offers on-going trade promotion programs with customers and consumer coupon programs that require the Company to estimate and accrue the expected costs for such programs. Programs include cooperative marketing programs, shelf price reductions, coupons, rebates, consideration and allowances given to retailers for shelf space and/or favorable display positions in their stores and other promotional activities. Costs related to rebates, cooperative advertising and other promotional activities are recorded as a reduction to sales upon delivery of the Company’s products to its customers. Coupon costs are based upon historical redemption rates and are recorded as a reduction to sales as incurred, which is when the coupons are circulated. Cost of Products Sold  Cost of products sold primarily includes the cost of products manufactured on the Company’s behalf by its third-party contract manufacturers, net of volume and other rebates. Cost of products sold also includes the costs to manufacture WD-40 concentrate, which is done at the Company’s own facilities or at third-party contract manufacturers. When the concentrate is manufactured by the Company, cost of products sold includes direct labor, direct materials and supplies; in-bound freight costs related to purchased raw materials and finished product; and depreciation of machinery and equipment used in the manufacturing process.  Selling, General and Administrative Expenses  Selling, general and administrative expenses include costs related to selling the Company’s products, such as the cost of the sales force and related sales and broker commissions; shipping and handling costs paid to third-party companies to distribute finished goods from the Company’s third-party contract manufacturers and distribution centers to its customers; other general and administrative costs related to the Company’s business such as general overhead, legal and accounting fees, insurance, and depreciation; and other employee-related costs to support marketing, human resources, finance, supply chain, information technology and research and development activities.  Shipping and Handling Costs  Shipping and handling costs associated with in-bound freight and movement of product from third-party contract manufacturers to the Company’s third-party warehouses are capitalized in the cost of inventory and subsequently included in cost of sales when recognized in the statement of operations. S hipping and handling costs associated with out-bound transportation are included in selling, general and administrative expenses and are recorded at the time of shipment of product to the Company’s customers. Out-bound shipping and handling costs were $16.4 million, $16. 1 million and $15. 8 million for fiscal years 201 7 , 201 6 and 201 5 , respectively.  Advertising and Sales Promotion Expenses  Advertising and sales promotion expenses are expensed as incurred. Advertising and sales promotion expenses include costs associated with promotional activities that the Company pays to third parties, which include costs for advertising (television, print media and internet), administration of coupon programs, consumer promotions, product demonstrations, public relations, agency costs, package design expenses and market research costs. Total advertising and sales promotion expenses were $20.5 million, $22.3 million and $22.9 million for fiscal years 2017, 2016 and 2015, respectively.  Research and Development  The Company is involved in research and development efforts that include the ongoing development or innovation of new products and the improvement, extension or renovation of existing products or product lines. All research and development costs are expensed as incurred and are included in selling, general and administrative expenses. Research and development expenses were $ 8.4 million, $ 7.7 million and $9. 0 million in fiscal years 2017 , 201 6 and 201 5 , respectively. These expenses include costs associated with general research and development activities, as well as those associated with internal staff, overhead, design testing, market research and consultants.  Income Taxes  Current income tax expense is the amount of income taxes expected to be payable for the current year. A deferred income tax liability or asset is established for the expected future tax consequences resulting from the differences in financial reporting and tax bases of assets and liabilities. A valuation allowance is provided if it is more likely than not that some or all of the deferred tax assets will not be realized. In addition to valuation allowances, the Company provides for uncertain tax positions when such tax positions do not meet the recognition thresholds or measurement standards prescribed by the authoritative guidance on income taxes. Amounts for uncertain tax positions are adjusted in periods when new information becomes available or when positions are effectively settled. The Company recognizes accrued interest and penalties related to uncertain tax positions as a component of income tax expense.  U.S. federal income tax expense is provided on remittances of foreign earnings and on unremitted foreign earnings that are not indefinitely reinvested. U.S. federal income taxes and foreign withholding taxes are not provided when foreign earnings are indefinitely reinvested. The Company determines whether its foreign subsidiaries will invest their undistributed earnings indefinitely based on the capital needs of the foreign subsidiaries and reassesses this determination each reporting period. Changes to the Company’s determination may be warranted based on the Company’s experience as well as its plans regarding future international operations and expected remittances.  Foreign Currency  The Company translates the assets and liabilities of its foreign subsidiaries into U.S. dollars at current rates of exchange in effect at the end of the reporting period. Income and expense items are translated at rates that approximate the rates in effect at the transaction date. Gains and losses from translation are included in accumulated other comprehensive income or loss. Gains or losses resulting from foreign currency transactions (transactions denominated in a currency other than the entity’s functional currency) are included as other income (expense) in the Company’s consolidated statements of operations. The Company had $0.4 million and $ 2.4 million of net gains in foreign currency transactions in fiscal years 2017 and 2016, respectively, and $1.7 million of net losses in fiscal year 2015.  In the normal course of business, the Company employs established policies and procedures to manage its exposure to fluctuations in foreign currency exchange rates. The Company’s U.K. subsidiary, whose functional currency is Pound Sterling, utilizes foreign currency forward contracts to limit its exposure to net asset balances held in non-functional currencies, specifically the Euro. The Company regularly monitors its foreign currency exchange rate exposures to ensure the overall effectiveness of its foreign currency hedge positions. While the Company engages in foreign currency hedging activity to reduce its risk, for accounting purposes, none of its foreign currency forward contracts are designated as hedges.  Foreign currency forward contracts are carried at fair value, with net realized and unrealized gains and losses recognized currently in other income (expense) in the Company’s consolidated statements of operations. Cash flows from settlements of foreign currency forward contracts are included in operating activities in the consolidated statements of cash flows. Foreign currency forward contracts in an asset position at the end of the reporting period are included in other current assets, while foreign currency forward contracts in a liability position at the end of the reporting period are included in accrued liabilities in the Company’s consolidated balance sheets. At August 31, 2017, the Company had a notional amount of $ 23 .4 million outstanding in foreign currency forward contracts, which matured in September 2017 . Unrealized net losses related to foreign currency forward contracts were $0.6 million at August 31, 2017, while unrealized net gains and losses were not significant at August 31, 2016. Realized net losses related to foreign currency forward contracts were $0.5 million for the fiscal year ended August 31, 2017, while realized net gains and losses were not significant for the fiscal year ended August 31, 2016.  Earnings per Common Share  Unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents, whether paid or unpaid, are participating securities that are required to be included in the computation of earnings per common share pursuant to the two-class method. Accordingly, the Company’s outstanding unvested, if any, and outstanding vested stock-based equity awards that provide such nonforfeitable rights to dividend equivalents are included as participating securities in the calculation of earnings per common share (“EPS”) pursuant to the two-class method.  The Company calculates EPS using the two-class method, which provides for an allocation of net income between common stock and other participating securities based on their respective participation rights to share in dividends. Basic EPS is calculated by dividing net income available to common shareholders for the period by the weighted-average number of common shares outstanding during the period. Net income available to common shareholders for the period includes dividends paid to common shareholders during the period plus a proportionate share of undistributed net income allocable to common shareholders for the period; the proportionate share of undistributed net income allocable to common shareholders for the period is based on the proportionate share of total weighted-average common shares and participating securities outstanding during the period.  Diluted EPS is calculated by dividing net income available to common shareholders for the period by the weighted-average number of common shares outstanding during the period increased by the weighted-average number of potentially dilutive common shares (dilutive securities) that were outstanding during the period if the effect is dilutive. Dilutive securities are comprised of stock options, restricted stock units , market share units and deferred performance units granted under the Company’s prior and current equity incentive plan s .  Stock-based Compensation  The Company accounts for stock-based equity awards exchanged for employee and non-employee director services in accordance with the authoritative guidance for share-based payments. Under such guidance, stock-based compensation expense is measured at the grant date, based on the estimated fair value of the award, and is recognized as expense, net of estimated forfeitures, over the requisite service period. Compensation expense is amortized on a straight-line basis over the requisite service period for the entire award, which is generally the maximum vesting period of the award.  The fair value of stock options is determined using a Black-Scholes option pricing model. The fair values of restricted stock unit awards and deferred performance unit awards are based on the fair value of the Company’s common stock on the date that such awards are granted. The fair value of market share unit awards is determined using a Monte Carlo simulation model. For the deferred performance unit awards, the Company adjusts the compensation expense over the service period based upon the expected achievement level of the applicable performance condition. As the grant date fair value of market share unit awards reflects the probabilities of the actual number of such awards expected to vest, compensation expense for such awards is not adjusted based on the expected achievement level of the applicable performance condition. An estimated forfeiture rate is applied and included in the calculation of stock-based compensation expense at the time that the stock-based equity awards are granted and revised, if necessary, in subsequent periods if actual forfeiture rates differ from those estimates. Compensation expense related to the Company’s stock-based equity awards is recorded as selling, general and administrative expenses in the Company’s consolidated statements of operations.  The Company calculates its windfall tax benefits additional paid-in capital pool that is available to absorb tax deficiencies in accordance with the short-cut method provided for by the authoritative guidance for share-based payments. As of August 31, 2017, the Company determined that it has a remaining pool of windfall tax benefits.  Segment Information  The Company discloses certain information about its business segments, which are determined consistent with the way the Company’s Chief Operating Decision Maker organizes and evaluates financial information internally for making operating decisions and assessing performance. In addition, the Chief Operating Decision Maker assesses and measures revenue based on product groups.  Recently Adopted Accounting Standards  In August 2014, the FASB issued ASU No. 2014-15, “ Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern ”. This updated guidance requires management to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern within one year of the date that the financial statements are issued and provide related disclosures if necessary . This guidance is effective for the first annual fiscal period ending after December 15, 2016, and for all interim and annual periods thereafter. The Company adopted this guidance in the fourth quarter of fiscal year 2017 on a prospective basis and there was no impact on its consolidated financial statements and related disclosures.  Recently Issued Accounting Standards  In May 2017, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2017-09, “ Scope of Modification Accounting ”, to reduce diversity in practice and provide clarity regarding existing guidance in ASC 718, “ Stock Compensation ”. The amendments in this updated guidance clarify that an entity should apply modification accounting in response to a change in the terms and conditions of an entity’s share-based payment awards unless three newly specified criteria are met . This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period. Early adoption is permitted . The Company has evaluated the potential impacts of this updated guidance, and it does not expect the adoption of this guidance to have a material impact on its consolidated financial statements and related disclosures.  In January 2017, the FASB issued ASU No. 2017-04, “Simplifying the Test for Goodwill Impairment”. This updated guidance eliminates Step 2 from the current two-step quantitative model for goodwill impairment tests. Step 2 required an entity to calculate an implied fair value, which included a hypothetical purchase price allocation requirement, for reporting units that failed Step 1. Per this updated guidance, a goodwill impairment will instead be measured as the amount by which a reporting unit’s carrying value exceeds its fair value as identified in Step 1. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017 . The Company has evaluated the potential impacts of this updated guidance, and it does not expect the adoption of this guidance to have a material impact on its consolidated financial statements and related disclosures.  In October 2016, the FASB issued ASU No. 2016-16, “Intra-Entity Transfers of Assets Other Than Inventory”, which requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs . This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period. Early adoption is permitted in the first interim period of an entity's annual financial statements . The Company has evaluated the potential impacts of this updated guidance, and it does not expect the adoption of this guidance to have a material impact on its consolidated financial statements and related disclosures.  In August 2016, the FASB issued ASU No. 2016-15, “ Classification of Certain Cash Receipts and Cash Payments ”. The amendments in this updated guidance address eight specific cash flow issues to reduce the existing diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period. Early adoption is permitted and should be applied using a retrospective approach. The Company is in the process of evaluating the potential impacts of this new guidance on its consolidated financial statements.  In June 2016, the FASB issued ASU No. 2016-13, “ Measurement of Credit Losses on Financial Instruments ”, which requires entities to estimate all expected credit losses for certain types of financial instruments, including trade receivables, held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts . The updated guidance also expands the disclosure requirements to enable users of financial statements to understand the entity’s assumptions, models and methods for estimating expected credit losses. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted. The Company is in the process of evaluating the potential impacts of this new guidance on its consolidated financial statements.  In March 2016, the FASB issued ASU No. 2016-09, “ Improvements to Employee Share-Based Payment Accounting”. The amendments in this updated guidance include changes to simplify the Codification for several aspects of the accounting for share-based payment transactions, including those related to the income tax consequences, classification of awards as either equity or liabilities, accounting for forfeitures, minimum statutory withholding requirements and classification of certain items on the statement of cash flows. Certain of these changes are required to be applied retrospectively while other changes are required to be applied prospectively. This guidance is effective for fiscal years beginning after December 15, 2016, including interim periods within that reporting period. Early adoption was permitted. The Company did not adopt this updated guidance early and therefore this guidance will become effective for the Company during the first quarter of fiscal year 2018 . The Company expects that the adoption of this new guidance will have a more than inconsequential impact on the Company’s consolidated financial statements. For example, if the Company had adopted this updated guidance in fiscal year 2017, its income tax expense for the year would have been reduced by approximately $1.5 million due to the recognition of excess tax benefits in the provision for income taxes rather than through additional paid-in-capital. The Company also expects to change its policy related to forfeitures upon adoption of this new guidance such that it will recognize the impacts of forfeitures as they occur rather than recognizing them based on an estimated forfeiture rate. Although the Company is still assessing the impacts of this change in policy for forfeitures on its consolidated financial statements, it does not expect that the impact will be material. In addition, the Company’s presentation of employee taxes paid on shares of certain equity awards withheld by the Company for tax-withholding purposes will be reported as a financing activity instead of an operating activity in the Consolidated Statement of Cash Flows, while the excess tax benefits from settlements of stock-based equity awards will be reported as an operating activity under this new guidance.  In February 2016

Inventories

Inventories	12 Months Ended
	Aug. 31, 2017
Inventories [Abstract]
Inventories	Note 3. Inventories  Inventories consisted of the following (in thousands):    August 31, August 31,  2017 2016  Product held at third-party contract manufacturers $ 3,021 $ 3,521  Raw materials and components 3,021 2,996  Work-in-process 215 163  Finished goods 29,083 25,113  Total $ 35,340 $ 31,793   

Property And Equipment

Property And Equipment	12 Months Ended
	Aug. 31, 2017
Property And Equipment [Abstract]
Property And Equipment	Note 4. Property and Equipment  Property and equipment, net, consisted of the following (in thousands):    August 31, August 31,  2017 2016  Machinery, equipment and vehicles $ 17,491 $ 14,892  Buildings and improvements 16,953 4,223  Computer and office equipment 4,552 3,605  Software 7,947 7,392  Furniture and fixtures 1,608 1,286  Capital in progress 861 2,200  Land 3,453 254  Subtotal 52,865 33,852  Less: accumulated depreciation and amortization (23,426) (22,307)  Total $ 29,439 $ 11,545   

Goodwill And Other Intangible A

Goodwill And Other Intangible Assets	12 Months Ended
	Aug. 31, 2017
Goodwill And Other Intangible Assets [Abstract]
Goodwill And Other Intangible Assets	Note 5. Goodwill and Other Intangible Assets  Acquisitions  During the first quarter of fiscal year 2015, the Company entered into an agreement by and between GT 85 Limited (“GT85”) and WD-40 Company Limited, which is the Company’s U.K. subsidiary, to acquire the GT85 business and certain of its assets for a purchase consideration of $4.1 million. Of this purchase consideration, $3.7 million was paid in cash upon completion of the acquisition (“completion”) and the remaining balance was paid in June 2015. Located in the U.K., the GT85 business was engaged in the marketing and sale of the GT85® and SG85 brands of maintenance products. This acquisition complements the Company’s maintenance products and will help to build upon its strategy to develop new product categories for WD-40 Specialist and WD-40 BIKE.  The purchase price was allocated to certain customer-related, trade name-related, and technology-based intangible assets in the amount of $1.7 million, $0.9 million, and $0.2 million, respectively. The Company began to amortize these definite-lived intangible assets on a straight-line basis over their estimated useful lives of eight , ten , and four years, respectively, in the first quarter of fiscal year 2015. The purchase price exceeded the fair value of the intangible assets acquired and, as a result, the Company recorded goodwill of $1.3 million in connection with this transaction. This acquisition did not have a material impact on the Company’s condensed consolidated financial statements, and as a result no pro forma disclosures have been presented.  Goodwill  The following table summarizes the changes in the carrying amounts of goodwill by segment (in thousands):    Americas EMEA Asia-Pacific Total  Balance as of August 31, 2015 $ 85,532 $ 9,667 $ 1,210 $ 96,409  Translation adjustments (80) (680) - (760)  Balance as of August 31, 2016 85,452 8,987 1,210 95,649  Translation adjustments (4) (48) - (52)  Balance as of August 31, 2017 $ 85,448 $ 8,939 $ 1,210 $ 95,597  During the second quarter of fiscal year 2017, the Company performed its annual goodwill impairment test. The annual goodwill impairment test was performed at the reporting unit level, which resides at a component level below the Company’s operating segment level and for which discrete financial information is available, as required by the authoritative guidance. The Company performed a qualitative assessment of each reporting unit to determine whether it was more likely than not that the fair value of a reporting unit was less than its carrying amount. In performing this qualitative assessment, the Company assessed relevant events and circumstances that may impact the fair value and the carrying amount of each of its reporting units. Factors that were considered included, but were not limited to, the following: (1) macroeconomic conditions; (2) industry and market conditions; (3) historical financial performance and expected financial performance; (4) other entity specific events, such as changes in management or key employees; and (5) events affecting the Company’s reporting units, such as a change in the composition of net assets or any expected dispositions. Based on the results of this qualitative assessment, the Company determined that it is more likely than not that the carrying value of each of its reporting units is less than its fair value and, thus, the two-step quantitative analysis was not required. As a result, the Company concluded that no impairment of its goodwill existed as of February 28, 2017 .  In addition, there were no indicators of impairment identified as a result of the Company’s review of events and circumstances related to its goodwill subsequent to February 2 8 , 201 7, t he date of its most recent annual goodwill impairment test. To date, there have been no impairment losses identified and recorded related to the Company’s goodwill.  Definite-lived Intangible Assets  The Company’s definite-lived intangible assets, which include the 2000 Flushes, Spot Shot, Carpet Fresh, 1001 and GT85 trade names, the Belgium customer list, the GT85 customer relationships and the GT85 technology are included in other intangible assets, net in the Company’s condensed consolidated balance sheets. The following table summarizes the definite-lived intangible assets and the related accumulated amortization (in thousands) :    August 31, August 31,  2017 2016  Gross carrying amount $ 35,891 $ 36,009  Accumulated amortization (19,647) (16,818)  Net carrying amount $ 16,244 $ 19,191   There has been no impairment charge for the period ended August 31, 2017 as a result of the Company’s review of events and circumstances related to its existing definite-lived intangible assets.  Changes in the carrying amounts of definite-lived intangible assets by segment are summarized below (in thousands):     Americas EMEA Asia-Pacific Total  Balance as of August 31, 2015 $ 17,121 $ 5,840 $ - $ 22,961  Amortization expense (2,208) (768) - (2,976)  Translation adjustments - (794) - (794)  Balance as of August 31, 2016 14,913 4,278 - 19,191  Amortization expense (2,207) (672) - (2,879)  Translation adjustments - (68) - (68)  Balance as of August 31, 2017 $ 12,706 $ 3,538 $ - $ 16,244   The estimated amortization expense for the Company’s definite-lived intangible assets in future fiscal years is as follows (in thousands):    Trade Names Customer-Based Technology  Fiscal year 2018 $ 2,419 $ 446 $ 33  Fiscal year 2019 2,414 259 -  Fiscal year 2020 2,019 165 -  Fiscal year 2021 1,230 165 -  Fiscal year 2022 1,229 165 -  Thereafter 5,700 - -  Total $ 15,011 $ 1,200 $ 33  Included in the total estimated future amortization expense is the amortization expense for the 1001 trade name and the GT85 intangible assets, which are based on current foreign currency exchange rates, and as a result amounts in future periods may differ from those presented due to fluctuations in those rates.

Accrued And Other Liabilities

Accrued And Other Liabilities	12 Months Ended
	Aug. 31, 2017
Accrued And Other Liabilities [Abstract]
Accrued And Other Liabilities	Note 6. Accrued and Other Liabilities  Accrued liabilities consisted of the following (in thousands):    August 31, August 31,  2017 2016  Accrued advertising and sales promotion expenses $ 10,889 $ 9,763  Accrued professional services fees 1,456 1,262  Accrued sales taxes and other taxes 1,701 954  Other 4,951 3,778  Total $ 18,997 $ 15,757   Accrued payroll and related expenses consisted of the following (in thousands):    August 31, August 31,  2017 2016  Accrued incentive compensation $ 6,554 $ 12,203  Accrued payroll 3,338 3,559  Accrued profit sharing 2,257 2,716  Accrued payroll taxes 1,503 1,744  Other 570 644  Total $ 14,222 $ 20,866   

Debt

Debt	12 Months Ended
	Aug. 31, 2017
Debt [Abstract]
Debt	Note 7. Debt  Revolving Credit Facility  On June 17, 2011, the Company entered into an unsecured credit agreement with Bank of America, N.A. (“Bank of America”). Since June 17, 2011, this unsecured credit agreement has been amended four times, most recently on September 1, 2016, (the “Fourth Amendment”). This Fourth Amendment amended the credit agreement in connection with the purchase of the Company’s new office building and related land located at 9715 Businesspark Avenue, San Diego, California (the “Property”). The Fourth Amendment permits the Company to spend $18.0 million in aggregate for the acquisition and improvement costs for the Property, with any excess applied against the $7.5 million permitted annually by the amended agreement for other capital expenditures. In addition, the Fourth Amendment also includes changes to the agreement that will allow, as a permitted lien, any agreement with Bank of America for secured debt.  Per the terms of the amended agreement, the revolving commitment may not exceed $175.0 million and the aggregate amount of the Company’s capital stock that it may repurchase may not exceed $150.0 million during the period from November 16, 2015 to the maturity date of the agreement so long as no default exists immediately prior and after giving effect thereto. This revolving credit facility matures on May 13, 2020 , and includes representations, warranties and covenants customary for credit facilities of this type, as well as customary events of default and remedies. In addition, per the terms of the amended agreement, the Company and Bank of America may enter into an autoborrow agreement in form and substance satisfactory to Bank of America, providing for the automatic advance of revolving loans in U.S. Dollars to the Company’s designated account at Bank of America. In the second quarter of fiscal year 2016, the Company entered into an autoborrow agreement with Bank of America and this agreement has been in effect since that time For the financial covenants, the definition of consolidated EBITDA includes the add back of non-cash stock-based compensation to consolidated net income when arriving at consolidated EBITDA. The terms of the financial covenants are as follows : · The consolidated leverage ratio cannot be greater than three to one. The consolidated leverage ratio means, as of any date of determination, the ratio of (a) consolidated funded indebtedness as of such date to (b) consolidated EBITDA for the most recently completed four fiscal quarters. · The consolidated interest coverage ratio cannot be less than three to one. The consolidated interest coverage ratio means, as of any date of determination, the ratio of (a) consolidated EBITDA for the most recently completed four fiscal quarters to (b) consolidated interest charges for the most recently completed four fiscal quarters Since the autoborrow feature provides for borrowings to be made and repaid by the Company on a daily basis, any such borrowings made under an active autoborrow agreement are classified as short-term on the Company’s consolidated balance sheets. The Company had no balance under the autoborrow agreement as of August 31, 2017. In addition , the Company assesses its ability and intent to refinance the outstanding draws on the line of credit at the end of each reporting period in order to determine the proper balance sheet classification for amounts outstanding on the line of credit . During the fiscal year ended August 31, 2017, the Company borrowed $20.0 million on the line of credit which it intends to repay in less than twelve months . As a result, the Company has classified $20.0 million borrowed under the revolving credit facility during the fiscal year ended August 31, 2017 as short-term on its consolidated balance sheets .  In addition to the $20.0 million in borrowings classified as short-term, the Company borrowed an additional $12.0 million U.S. Dollars under the revolving credit facility during the fiscal year ended August 31, 2017. Based on management’s ability and intent to refinance these new draws and remainder of the Company’s short-term borrowings under the facility with successive short-term borrowings for a period of at least twelve months, the Company has classified $134.0 million outstanding under the revolving credit facility as a long-term liability at August 31, 2017 . The Company regularly converts existing draws on its line of credit to new draws with new maturity dates and interest rates. As of August 31, 2017 , the Company had a $154.0 million outstanding balance on the revolving credit facility and was in compliance with all debt covenants under this credit facility.

Share Repurchase Plans

Share Repurchase Plans	12 Months Ended
	Aug. 31, 2017
Share Repurchase Plans [Abstract]
Share Repurchase Plans	Note 8 . Share Repurchase Plans  On June 21, 2016, the Company’s Board of Directors approved a share buy-back plan. Under the plan, which became effective on September 1, 2016, the Company is authorized to acquire up to $75.0 million of its outstanding shares through August 31, 2018. The timing and amount of repurchases are based on terms and conditions as may be acceptable to the Company’s Chief Executive Officer and Chief Financial Officer and in compliance with all laws and regulations applicable thereto . During the period from September 1, 2016 through August 31, 2017, the Company repurchased 290,573 shares at a total cost of $31.1 million under this $75.0 million plan .

Earnings Per Common Share

Earnings Per Common Share	12 Months Ended
	Aug. 31, 2017
Earnings Per Common Share [Abstract]
Earnings Per Common Share	Note 9. Earnings per Common Share  The table below reconciles net income to net income available to common shareholders (in thousands):    Fiscal Year Ended August 31,  2017 2016 2015  Net income $ 52,930 $ 52,628 $ 44,807  Less: Net income allocated to participating securities (323) (334) (271)  Net income available to common shareholders $ 52,607 $ 52,294 $ 44,536   The table below summarizes the weighted-average number of common shares outstanding included in the calculation of basic and diluted EPS (in thousands):    Fiscal Year Ended August 31,  2017 2016 2015  Weighted-average common shares outstanding, basic 14,089 14,332 14,582  Weighted-average dilutive securities 34 47 67  Weighted-average common shares outstanding, diluted 14,123 14,379 14,649  There were no anti-dilutive stock-based equity awards outstanding for the fiscal year ended August 31, 2017. For the fiscal year s ended August 31, 2016 and 201 5 , weighted-average stock-based equity awards outstanding that are non-participating securities in the amounts of 4,501 and 1,337 , respectively , were excluded from the calculation of diluted EPS under the treasury stock method as they were anti -dilutive .

Related Parties

Related Parties	12 Months Ended
	Aug. 31, 2017
Related Parties [Abstract]
Related Parties	Note 10. Related Parties  On October 11, 2011, the Company’s Board of Directors elected Mr. Gregory A. Sandfort as a director of WD-40 Company. Mr. Sandfort is the Chief Executive Officer of Tractor Supply Company (“Tractor Supply”), which is a WD-40 Company customer that acquires products from the Company in the ordinary course of business.  The consolidated financial statements include sales to Tractor Supply of $1.2 million for each of the fiscal years 201 7 and 201 6 , respectively , and $1.1 million for fiscal year 2015 . Accounts receivable from Tractor Supply were not significant as of August 31, 2017 and 2016. 

Commitments And Contingencies

Commitments And Contingencies	12 Months Ended
	Aug. 31, 2017
Commitments And Contingencies [Abstract]
Commitments And Contingencies	Note 11. Commitments and Contingencies  Leases  The Company was committed under certain non-cancelable operating leases at August 31, 2017 which provide for the following future fiscal year minimum payments (in thousands):    2018 2019 2020 2021 2022 Thereafter  Operating leases $ 1,856 $ 1,223 $ 893 $ 739 $ 479 $ 470  Rent expense was $2.1 million, $1.9 million, and $2.1 million for the fiscal years ended August 31, 201 7, 2016 and 2015, respectively .  Purchase Commitments  The Company has ongoing relationships with various suppliers (contract manufacturers) who manufacture the Company’s products. The contract manufacturers maintain title and control of certain raw materials and components, materials utilized in finished products, and of the finished products themselves until shipment to the Company’s customers or third-party distribution centers in accordance with agreed upon shipment terms. Although the Company typically does not have definitive minimum purchase obligations included in the contract terms with its contract manufacturers, when such obligations have been included, they have been immaterial. In the ordinary course of business, supply needs are communicated by the Company to its contract manufacturers based on orders and short-term projections, ranging from two to five months. The Company is committed to purchase the products produced by the contract manufacturers based on the projections provided.  Upon the termination of contracts with contract manufacturers, the Company obtains certain inventory control rights and is obligated to work with the contract manufacturer to sell through all product held by or manufactured by the contract manufacturer on behalf of the Company during the termination notification period. If any inventory remains at the contract manufacturer at the termination date, the Company is obligated to purchase such inventory which may include raw materials, components and finished goods . The amounts for inventory purchased under termination commitments have been immateria l.  In addition to the commitments to purchase products from contract manufacturers described above, the Company may also enter into commitments with other manufacturers to purchase finished goods and components to support innovation and renovation initiatives and/or supply chain initiatives. As of August 31, 2017 , no such commitments were outstanding.  Litigation  From time to time, the Company is subject to various claims, lawsuits, investigations and proceedings arising in the ordinary course of business, including but not limited to, product liability litigation and other claims and proceedings with respect to intellectual property, breach of contract, labor and employment, tax and other matters.  On February 24, 2017, a legal action was filed against the Company in a United States District Court in Ohio (FirstPower Group, LLC v. WD-40 Company, WD-40 Manufacturing Company, Wal-Mart Stores East, LP, Lowe’s Home Centers, LLC, and Home Depot U.S.A., Inc.). The complaint alleged claims of trademark infringement, unfair competition, counterfeiting, and deceptive trade practices arising out of the Company’s marketing and sale of the WD ‑40 EZ-REACH Flexible Straw product. FirstPower Group, LLC (“FirstPower”) claimed exclusive ownership and the right to use the words “EZ REACH” for lubricating oil products based on certain registered trademarks covering such words. On February 24, 2017, FirstPower also filed a motion for preliminary injunction seeking an interim order prohibiting the alleged infringement of FirstPower’s asserted trademark rights. On July 18, 2017 the District Court issued a Memorandum Opinion denying FirstPower’s motion for preliminary injunction. On October 13, 2017 the case was dismissed as to all of the defendants pursuant to a confidential settlement agreement between the Company and FirstPower , which did not have a material impact on the Company’s business, financial condition or results of operations .  Indemnifications  As permitted under Delaware law, the Company has agreements whereby it indemnifies senior officers and directors for certain events or occurrences while the officer or director is, or was, serving at the Company’s request in such capacity. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company maintains Director and Officer insurance coverage that mitigates the Company’s exposure with respect to such obligations. As a result of the Company’s insurance coverage, management believes that the estimated fair value of these indemnification agreements is minimal. Thus, no liabilities have been recorded for these agreements as of August 31, 2017 .  From time to time, the Company enters into indemnification agreements with certain contractual parties in the ordinary course of business, including agreements with lenders, lessors, contract manufacturers, marketing distributors, customers and certain vendors. All such indemnification agreements are entered into in the context of the particular agreements and are provided in an attempt to properly allocate risk of loss in connection with the consummation of the underlying contractual arrangements. Although the maximum amount of future payments that the Company could be required to make under these indemnification agreements is unlimited, management believes that the Company maintains adequate levels of insurance coverage to protect the Company with respect to most potential claims arising from such agreements and that such agreements do not otherwise have value separate and apart from the liabilities incurred in the ordinary course of the Company’s business. Thus, no liabilities have been recorded with respect to such indemnification agreements as of August 31, 2017 .

Income Taxes

Income Taxes	12 Months Ended
	Aug. 31, 2017
Income Taxes [Abstract]
Income Taxes	Note 12. Income Taxes  Income before income taxes consisted of the following (in thousands):    Fiscal Year Ended August 31,  2017 2016 2015  United States $ 42,060 $ 41,128 $ 38,044  Foreign (1) 32,562 31,661 25,066  Income before income taxes $ 74,622 $ 72,789 $ 63,110  (1) Included in these amounts are income before income taxes for the EMEA segment of $28.1 million, $28.3 million and $21.9 million for the fiscal years ended August 31, 2017, 2016 and 2015, respectively.  The provision for income taxes consisted of the following (in thousands):    Fiscal Year Ended August 31,  2017 2016 2015  Current:  Federal $ 10,813 $ 13,269 $ 12,302  State 744 894 966  Foreign 7,465 7,593 5,886  Total current 19,022 21,756 19,154   Deferred:  United States 2,627 (1,100) (870)  Foreign 43 (495) 19  Total deferred 2,670 (1,595) (851)  Provision for income taxes $ 21,692 $ 20,161 $ 18,303   Deferred tax assets and deferred tax liabilities consisted of the following (in thousands):     August 31, August 31,  2017 2016  Deferred tax assets:  Accrued payroll and related expenses $ 1,252 $ 1,621  Accounts receivable 644 498  Reserves and accruals 2,393 2,292  Unrealized exchange loss 25 992  Stock-based compensation expense 3,213 2,976  Uniform capitalization 1,598 1,473  Tax credit carryforwards 2,309 2,038  Other 1,264 2,043  Total gross deferred tax assets 12,698 13,933  Valuation allowance (2,328) (2,054)  Total net deferred tax assets 10,370 11,879   Deferred tax liabilities:  Property and equipment, net (2,109) (558)  Amortization of tax goodwill and intangible assets (26,036) (26,321)  Investments in partnerships (679) (744)  Total deferred tax liabilities (28,824) (27,623)  Net deferred tax liabilities $ (18,454) $ (15,744)    The Company had state net operating loss (“NOL”) carryforwards of $2.6 million and $2.4 million as of August 31, 2017 and 2016, respectively, which generated a net deferred tax asset of $0.2 million for each of the fiscal years 2017 and 2016 . The state NOL carryforwards, if unused, will expire between fiscal year 2018 and 2037. The Company also had cumulative tax credit carryforwards of $ 2. 3 million and $2.0 million as of August 31, 2017 and 2016, respectively, of which $2.1 million and $1.9 million , respectively , is attributable to a U.K. tax credit carryforward, which does not expire. Future utilization of the tax credit carryforwards and certain state NOL carryovers is uncertain and is dependent upon several factors that may not occur, including the generation of future taxable income in certain jurisdictions. At this time, management cannot conclude that it is “more likely than not” that the related deferred tax assets will be realized. Accordingly, a full valuation allowance has been recorded against the related deferred tax asset associated with cumulative tax credit carryforwards.  A reconciliation of the statutory federal income tax rate to the Company’s effective tax rate is as follows (in thousands):    Fiscal Year Ended August 31,  2017 2016 2015  Amount computed at U.S. statutory federal tax rate $ 26,118 $ 25,476 $ 22,088  State income taxes, net of federal tax benefits 327 397 578  Effect of foreign operations (4,277) (4,382) (3,221)  Benefit from qualified domestic production deduction (1,295) (1,190) (1,131)  Other 819 (140) (11)  Provision for income taxes $ 21,692 $ 20,161 $ 18,303   The provision for income taxes was 29.1% and 27.7% of income before income taxes for the fiscal years ended August 31, 2017 and 2016, respectively. The increase in the effective income tax rate from period to period was primarily driven by an immaterial out-of-period correction that the Company recorded in the second quarter of fiscal year 2017 associated with the tax impacts from certain unrealized foreign currency exchange losses in periods prior to fiscal year 2017.  As of August 31, 2017 , the Company has not provided for U.S. federal and state income taxes and foreign withholding taxes on $137.5 million of the undistributed earnings of certain foreign subsidiaries, mostly attributable to the U.K., since these earnings are considered indefinitely reinvested outside of the United States. The amount of unrecognized deferred U.S. federal and state income tax liability, net of unrecognized foreign tax credits, is estimated to be approximately $ 12.9 million as of August 31, 2017 . This net liability is impacted by changes in foreign currency exchange rates and, as a result, will fluctuate with any changes in such rates. If management decides to repatriate foreign earnings in future periods, the Company would be required to provide for the incremental U.S. federal and state income taxes as well as foreign withholding taxes on such amounts in the period in which the decision is made. In the fourth quarter of fiscal year 2016, the Company approved a one-time repatriation of $8.2 million of historical foreign earnings from its Australia and China subsidiaries due to favorable tax consequences stemming principally from the strengthening of the U.S. dollar against various currencies in which the Company conducts business. This action resulted in the recognition of an incremental immaterial tax benefit in fiscal year 2016. The Company continues to consider the remaining amount of unremitted foreign earnings in Australia and China, in addition to the U.K, to be indefinitely reinvested outside of the United States . The Company continues to provide for U.S. income taxes and foreign withholding taxes on the undistributed earnings of its Canada and Malaysia subsidiaries, whose earnings are not considered indefinitely reinvested. Reconciliations of the beginning and ending amounts of the Company’s gross unrecognized tax benefits, excluding interest and penalties, are as follows (in thousands):    Fiscal Year Ended August 31,  2017 2016  Unrecognized tax benefits - beginning of fiscal year $ 1,239 $ 1,279  Net decreases - prior period tax positions (68) -  Net increases - current period tax positions 228 211  Expirations of statute of limitations for assessment (382) (251)  Settlements (36) -  Unrecognized tax benefits - end of fiscal year $ 981 $ 1,239  Gross unrecognized tax benefits totaled $1.0 million and $1.2 million as of August 31, 2017 and 2016, of which $0.6 million and $0.9 million, respectively, would affect the Company’s effective income tax rate if recognized. There were no material interest or penalties included in income tax expense for the fiscal years ended August 31, 201 7 and 201 6 . The total balance of accrued interest and penalties related to uncertain tax positions was also immaterial at August 31, 201 7 and 201 6 .  The Company is subject to taxation in the U.S. and in various state and foreign jurisdictions. Due to expired statutes, the Company’s federal income tax returns for years prior to fiscal year 2014 are not subject to examination by the U.S. Internal Revenue Service. The Company was notified in September 2016 by the U.S. Internal Revenue Service of its plans to perform an income tax audit for the tax period ended August 31, 2015. The income tax examination was concluded in the third quarter of fiscal year 2017 with no changes to the original return as filed. The Company is also currently under audit in various state and international jurisdictions for fiscal years 2013 through 2016. Generally, for the majority of state and foreign jurisdictions where the Company does business, periods prior to fiscal year 2013 are no longer subject to examination. The Company has estimated that up to $0.4 million of unrecognized tax benefits related to income tax positions may be affected by the resolution of tax examinations or expiring statutes of limitation within the next twelve months. Audit outcomes and the timing of settlements are subject to significant uncertainty.

Stock-based Compensation

Stock-based Compensation	12 Months Ended
	Aug. 31, 2017
Stock-based Compensation [Abstract]
Stock-based Compensation	Note 13. Stock-based Compensation  As of August 31, 2017, the Company had one stock incentive plan, the WD-40 Company 2016 Stock Incentive Plan (“2016 Plan”), which was approved by the Company’s shareholders effective as of December 13, 2016. The 2016 Plan permits the granting of various stock-based equity awards, including non-qualified stock options, incentive stock options, stock appreciation rights, restricted stock, restricted stock units, performance shares, performance units and other stock-based awards to employees, directors and consultants. To date through August 31, 2017, the Company had granted awards of restricted stock units (“RSUs”) under the 2016 Plan. Additionally, as of August 31, 201 7 , there were still outstanding stock options , RSUs, market share units (“MSUs”) and deferred performance units (“DPUs”) which had been granted under the Company’s prior equity incentive plans . The 2016 Plan is administered by the Board of Directors (the “Board”) or the Compensation Committee or other designated committee of the Board (the “Committee”). All stock-based equity awards granted under the 20 16 Plan are subject to the specific terms and conditions as determined by the Committee at the time of grant of such awards in accordance with the various terms and conditions specified for each award type per the 20 16 Plan. The total number of shares of common stock authorized for issuance pursuant to grants of awards under the 20 16 Plan is 1,000,000 . As of August 31, 201 7 , 979,546 shares of common stock remained available for future issuance pursuant to grants of awards under the 20 16 Plan. The shares of common stock to be issued pursuant to awards under the 20 16 Plan may be authorized but unissued shares or treasury shares. The Company has historically issued new authorized but unissued shares upon the settlement of the various stock-based equity awards under its equity incentive plans .  Vesting of the RSUs granted to directors is immediate, with shares to be issued pursuant to the vested RSUs upon termination of each director’s service as a director of the Company. Vesting of the one-time grant of RSUs granted to certain key executives of the Company in March 2008 in settlement of these key executives’ benefits under the Company’s supplemental employee retirement plan agreements was over a period of three years from the date of grant, with shares to be issued pursuant to the vested RSUs six months following the day after each executive officer’s termination of employment with the Company. Vesting of the RSUs granted to certain high level employees is over a period of three years from the date of grant, subject to potential earlier vesting in the event of retirement of the holder of the award in accordance with the award agreement, with shares to be issued pursuant to the vested RSUs at the time of vest. The director RSU holders and the executive officer March 2008 grant date RSU holders are entitled to receive dividend equivalents with respect to their RSUs, payable in cash as and when dividends are declared by the Company’s Board of Directors.  Vesting of the MSUs granted to certain high level employees follows a performance measurement period of three fiscal years commencing with the Company’s fiscal year in which the MSU awards are granted (the “Measurement Period”). Shares will be issued pursuant to the vested MSUs following the conclusion of the applicable MSU Measurement Period after the Committee’s certification of achievement of the applicable performance measure for such awards and the vesting of the MSU awards and the applicable percentage of the target number of MSU shares to be issued. The recipient must remain employed with the Company for vesting purposes until the date on which the Committee certifies achievement of the applicable performance measure for the MSU awards, subject to potential pro-rata vesting in the event of earlier retirement of the holder of the award in accordance with the award agreement.  Vesting of the DPUs granted to certain high level employees follows a performance measurement period of one fiscal year that is the same fiscal year in which the DPU awards are granted (the “Measurement Year”). A number of DPUs equal to the applicable percentage of the maximum number of DPUs awarded will be confirmed as vested following the conclusion of the applicable DPU Measurement Year after the Committee’s certification of achievement of the applicable performance measure for such awards (the “Vested DPUs”). The recipient must remain employed with the Company for vesting purposes until August 31 of the Measurement Year, subject to potential pro-rata vesting in the event of earlier retirement of the holder of the award in accordance with the award agreement. For recipients who are residents of the United States, the Vested DPUs must be held until termination of employment, with shares to be issued pursuant to the Vested DPUs six months following the day after each such recipient’s termination of employment with the Company. For recipients who are not residents of the United States, the Committee has discretion to either defer settlement of each such recipient’s Vested DPUs by issuance of shares following termination of employment or settle each Vested DPU in cash by payment of an amount equal to the closing price of one share of the Company’s common stock as of the date of the Committee’s certification of the relative achievement of the applicable performance measure for the DPU awards. Until issuance of shares in settlement of the Vested DPUs, the holders of each Vested DPU that is not settled in cash are entitled to receive dividend equivalents with respect to their Vested DPUs, payable in cash as and when dividends are declared by the Company’s Board of Directors.  Stock-based compensation expen se is amortized on a straight-line basis over the requisite service period for the entire award. Stock-based compensation expense related to the Company’s stock-based equity awards totaled $ 4.1 million, $3. 7 million and $2. 8 million for the fiscal years ended August 31, 201 7 , 201 6 and 201 5 , respectively. The Company recognized income tax benefits related to such stock-based compensation of $1.4 million, $1.2 million and $0.9 million for the fiscal years ended August 31, 201 7 , 201 6 and 201 5 , respectively. As of August 31, 201 7 , the total unamortized compensation cost related to non-vested stock-based equity awards was $0.8 million and $1.6 million for RSUs and MSUs, respectively, which the Company expects to recognize over remaining weighted-average vesting periods of 1.5 and 1.7 years for RSUs and MSUs, respectively. No unamortized compensation cost for DPUs remained as of August 31, 201 7 .  Stock Options  Fiscal year 2008 was the last fiscal period in which the Company granted stock options. The estimated fair value of each of the Company’s stock option awards granted in and prior to fiscal year 2008 was determined on the date of grant using the Black-Scholes option pricing model.  A summary of the Company’s stock option award activity is as follows (in thousands, except share and per share amounts and contractual term in years data):    Weighted-Average  Remaining  Weighted-Average Contractual Term  Number of Exercise Price Per Share Aggregate  Stock Options Shares Per Share (in years) Intrinsic Value  Outstanding at August 31, 2016 27,820 $ 35.59  Granted - $ -  Exercised (21,860) $ 35.47  Forfeited or expired - $ -  Outstanding at August 31, 2017 5,960 $ 36.03 0.1 $ 435  Exercisable at August 31, 2017 5,960 $ 36.03 0.1 $ 435  The total intrinsic value of stock options exercised was $1.6 million, $2.5 million and $3.3 million for the fiscal years ended August 31, 2017, 2016 and 2015, respectively.  The income tax benefits from stock options exercised totaled $0.4 million, $0.7 million and $1.1 million for the fiscal years ended August 31, 201 7 , 201 6 and 201 5 , respectively.  Restricted Stock Units  The estimated fair value of each of the Company’s RSU awards was determined on the date of grant based on the closing market price of the Company’s common stock on the date of grant for those RSUs which are entitled to receive dividend equivalents with respect to the RSUs, or based on the closing market price of the Company’s common stock on the date of grant less the grant date present value of expected dividends during the vesting period for those RSUs which are not entitled to receive dividend equivalents with respect to the RSUs.  A summary of the Company’s restricted stock unit activity is as follows (in thousands, except share and per share amounts):    Weighted-Average  Grant Date  Number of Fair Value Aggregate  Restricted Stock Units Shares Per Share Intrinsic Value  Outstanding at August 31, 2016 130,035 $ 54.80  Granted 21,501 $ 109.23  Converted to common shares (34,479) $ 58.71  Forfeited (287) $ 81.44  Outstanding at August 31, 2017 116,770 $ 63.61 $ 12,722  Vested at August 31, 2017 87,258 $ 52.78 $ 9,507   The weighted-average grant date fair value of all RSUs granted during the fiscal years ended August 31, 2017, 2016 and 2015 was $109.23 , $ 95.89 and $69.35 , respectively. The total intrinsic value of all RSUs converted to common shares was $3.6 million, $2.8 million and $1.8 million for the fiscal years ended August 31, 2017, 2016 and 2015, respectively.  The income tax benefits from RSUs converted to common shares totaled $1.3 million, $1.0 million and $0.6 m illion for the fiscal years ended August 31, 201 7 , 201 6 and 201 5 , respectively.  Market Share Units  The MSUs are market performance-based awards that shall vest with respect to the applicable percentage of the target number of MSU shares based on relative total stockholder return (“TSR”) for the Company as compared to the total return for the Russell 2000 Index (“Index”) over the performance Measurement Period. The ultimate number of MSUs that vest may range from 0% to 200% of the original target number of shares depending on the relative achievement of the TSR performance measure at the end of the Measurement Period. The probabilities of the actual number of MSUs expected to vest and resultant actual number of shares of common stock expected to be awarded are reflected in the grant date fair values of the various MSU awards; therefore, the compensation expense for the MSU awards will be recognized assuming the requisite service period is rendered and will not be adjusted based on the actual number of such MSU awards to ultimately vest.  The estimated fair value of each of the Company’s MSU awards, which are not entitled to receive dividend equivalents with respect to the MSUs, was determined on the date of grant using the Monte Carlo simulation model, which utilizes multiple input variables to simulate a range of possible future stock prices for both the Company and the Index and estimates the probabilities of the potential payouts. The determination of the estimated grant date fair value of the MSUs is affected by the Company’s stock price and a number of assumptions including the expected volatilities of the Company’s stock and the Index, the Company’s risk-free interest rate and expected dividends. The following weighted-average assumptions for MSU grants for the last three fiscal years were used in the Monte Carlo simulation model:     Fiscal Year Ended August 31,  2017 2016 2015  Expected volatility 21.1% 22.2% 22.0%  Risk-free interest rate 1.0% 0.9% 0.8%  Expected dividend yield 0.0% 0.0% 0.0%  The expected volatility utilized was based on the historical volatilities of the Company’s common stock and the Index in order to model the stock price movements. The volatility used was calculated over the most recent 2.89 -year period s for MSUs granted during each of the fiscal years ended August 31, 2017 and 2016 , and over the most recent 2.88 -year period for MSUs granted during the fiscal year ended August 31, 2015, which were the remaining terms of the performance Measurement Period at the dates of grant. The risk-free interest rates used were based on the implied yield available on a U.S. Treasury zero-coupon bill with a remaining term equivalent to the remaining performance Measurement Period. The MSU awards stipulate that, for purposes of computing the relative TSR for the Company as compared to the return for the Index, dividends paid with respect to both the Company’s stock and the Index are to be treated as being reinvested into the stock of each entity as of the ex-dividend date. Accordingly, an expected dividend yield of zero was used in the Monte Carlo simulation model, which is the mathematical equivalent to reinvesting dividends in the issuing entity over the performance Measurement Period.  A summary of the Company’s market share unit activity is as follows (in thousands, except share and per share amounts) :    Weighted-Average  Grant Date  Number of Fair Value Aggregate  Market Share Units Shares Per Share Intrinsic Value  Outstanding at August 31, 2016 45,700 $ 87.82  Granted 14,683 $ 90.91  Performance factor adjustments 10,974 $ 73.44  Converted to common shares (25,825) $ 71.20  Forfeited (613) $ 82.51  Outstanding at August 31, 2017 (1) 44,919 $ 94.95 $ 4,894   (1) This figure represents the total number of shares underlying MSU grants assuming achievement of the target number of shares at 100%. As the ultimate number of shares that vest could be as high as 200% of the target, the Company may be required to issue additional shares to satisfy outstanding MSU award grants.  The weighted-average grant date fair value of all MSUs granted during the fiscal years ended August 31, 2017, 2016 and 2015 was $90.91, $120.99 and $71.66 respectively. The total intrinsic value of all MSUs converted to common shares was $2.8 million and $3.7 million for the fiscal year s ended August 31, 201 7 and 2016, respectively . No MSUs were converted to common shares during the fiscal year ended August 31, 2015.  The income tax benefits from MSUs converted to common shares totaled $0.9 million and $1.2 million for the fiscal years ended August 31, 2017 and 2016, respectively.  Deferred Performance Units  The DPU awards provide for performance-based vesting over a performance measurement period of the fiscal year in which the DPU awards are granted. The performance vesting provisions of the DPUs are based on relative achievement within an established performance measure range of the Company’s reported earnings before interest, income taxes, depreciation in operating departments, and amortization computed on a consolidated basis for the Measurement Year, before deduction of the stock-based compensation expense for the Vested DPUs and excluding other non-operating income and expense amounts (“Adjusted Global EBITDA”). The ultimate number of DPUs that vest may range from 0% to 100% of the original maximum number of DPUs awarded depending on the relative achievement of the Adjusted Global EBITDA performance measure at the end of the Measurement Year.  The estimated fair value of each of the Company’s DPU awards was determined on the date of grant based on the closing market price of the Company’s common stock on the date of grant less the grant date present value of expected dividends during the vesting period for the DPUs, which are not entitled to receive dividend equivalents with respect to the unvested DPUs.  A summary of the Company’s deferred performance unit activity is as follows (in thousands, except share and per share amounts):     Weighted-Average  Grant Date  Number of Fair Value Aggregate  Deferred Performance Units Shares Per Share Intrinsic Value  Outstanding at August 31, 2016 26,323 $ 94.54  Granted 25,882 $ 110.19  Performance factor adjustments (21,240) $ 94.54  Converted to common shares (89) $ 94.54  Forfeited - $ -  Outstanding at August 31, 2017 30,876 $ 107.66 $ 3,364  Vested at August 31, 2017 4,994 $ 94.54 $ 544  The weighted-average grant date fair value of all DPUs granted during the fiscal years ended August 31, 2017, 2016 and 2015 was $110.19 , $94.54 and $75.14 , respectively. The total intrinsic value of all DPUs converted to common shares was not significant for the fiscal year ended August 31, 2017. No DPUs were converted to common shares during the fiscal years ended August 31, 2016, or 2015.  The income tax benefits from DPUs converted to common shares were not significant for the fiscal year ended August 31, 2017.

Other Benefit Plans

Other Benefit Plans	12 Months Ended
	Aug. 31, 2017
Other Benefit Plans [Abstract]
Other Benefit Plans	Note 14. Other Benefit Plans The Company has a WD-40 Company Profit Sharing/401(k) Plan and Trust (the “Profit Sharing/401(k) Plan”) whereby regular U.S. employees who have completed certain minimum service requirements can defer a portion of their income through contributions to a trust. The Profit Sharing/401(k) Plan provides for Company contributions to the trust, as approved by the Board of Directors, as follows: 1) matching contributions to each participant up to 50% of the first 6.6% of compensation contributed by the participant; 2) fixed non-elective contributions in the amount equal to 10% of eligible compensation; and 3) a discretionary non-elective contribution in an amount to be determined by the Board of Directors up to 5% of eligible compensation. The Company’s contributions are subject to overall employer contribution limits and may not exceed the amount deductible for income tax purposes. The Profit Sharing/401(k) Plan may be amended or discontinued at any time by the Company. The Company’s contribution expense for the Profit Sharing/401(k) Plan was $3.3 million, $3.2 million and $3.1 million for the fiscal years ended August 31, 2017, 2016 and 2015, respectively.  The Company’s international subsidiaries have similar benefit plan arrangements, dependent upon the local applicable laws and regulations. The plans provide for Company contributions to an appropriate third-party plan, as approved by the subsidiary’s Board of Directors. The Company’s contribution expense related to the international plans was $1.4 million, $1.5 million and $1.4 million for the fiscal years ended August 31, 2017, 2016 and 2015, respectively .

Business Segments And Foreign O

Business Segments And Foreign Operations	12 Months Ended
	Aug. 31, 2017
Business Segments And Foreign Operations [Abstract]
Business Segments And Foreign Operations	Note 15. Business Segments and Foreign Operations  The Company evaluates the performance of its segments and allocates resources to them based on sales and operating income. The Company is organized on the basis of geographical area into the following three segments: the Americas; EMEA; and Asia-Pacific. Segment data does not include inter-segment revenues. Unallocated corporate expenses are general corporate overhead expenses not directly attributable to the operating segments and are reported separate from the Company’s identified segments. The corporate overhead costs include expenses for the Company’s accounting and finance, information technology, human resources, research and development, quality control and executive management functions, as well as all direct costs associated with public company compliance matters including legal, audit and other professional services costs.     Unallocated  Americas EMEA Asia-Pacific Corporate (1) Total  Fiscal Year Ended August 31, 2017  Net sales $ 184,929 $ 136,771 $ 58,806 $ - $ 380,506  Income from operations $ 48,303 $ 35,389 $ 16,765 $ (24,548) $ 75,909  Depreciation and  amortization expense $ 4,270 $ 2,090 $ 254 $ 155 $ 6,769  Interest income $ 8 $ 389 $ 111 $ - $ 508  Interest expense $ 2,570 $ - $ 12 $ - $ 2,582   Fiscal Year Ended August 31, 2016  Net sales $ 191,397 $ 135,235 $ 54,038 $ - $ 380,670  Income from operations $ 48,404 $ 31,702 $ 15,162 $ (23,920) $ 71,348  Depreciation and  amortization expense $ 4,071 $ 2,084 $ 280 $ 30 $ 6,465  Interest income $ 5 $ 485 $ 193 $ - $ 683  Interest expense $ 1,689 $ - $ 14 $ - $ 1,703   Fiscal Year Ended August 31, 2015  Net sales $ 187,344 $ 136,847 $ 53,959 $ - $ 378,150  Income from operations $ 46,674 $ 30,173 $ 12,602 $ (24,059) $ 65,390  Depreciation and  amortization expense $ 4,078 $ 2,102 $ 253 $ 31 $ 6,464  Interest income $ 9 $ 417 $ 158 $ - $ 584  Interest expense $ 1,197 $ - $ 8 $ - $ 1,205  (1) Unallocated corporate expenses are general corporate overhead expenses not directly attributable to any one of the operating segments. These expenses are reported separate from the Company’s identified segments and are included in Selling, General and Administrative expenses on the Company’s consolidated statements of operations.  The Company’s Chief Operating Decision Maker does not review assets by segment as part of the financial information provided and therefore, no asset information is provided in the above table.  Net sales by product group are as follows (in thousands):    Fiscal Year Ended August 31,  2017 2016 2015  Maintenance products $ 342,295 $ 339,974 $ 333,306  Homecare and cleaning products 38,211 40,696 44,844  Total $ 380,506 $ 380,670 $ 378,150   Net sales and long-lived assets by geographic area are as follows (in thousands):     Fiscal Year Ended August 31,  2017 2016 2015  Net Sales by Geography:  United States $ 150,086 $ 158,139 $ 153,116  International 230,420 222,531 225,034  Total $ 380,506 $ 380,670 $ 378,150   Long-lived Assets by Geography (2) :  United States $ 23,346 $ 6,419 $ 5,955  International 6,093 5,126 5,421  Total $ 29,439 $ 11,545 $ 11,376  (2) Includes tangible assets and property and equipment, net, attributed to the geographic location in which such assets are located. 

Subsequent Events

Subsequent Events	12 Months Ended
	Aug. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	Note 16. Subsequent Events  On October 10, 2017 , the Company’s Board of Directors declared a cash dividend of $0.49 per share payable on October 31, 2017 to shareholders of record on October 20, 2017 . 

Basis Of Presentation And Sum25

Basis Of Presentation And Summary Of Significant Accounting Policies (Policy)	12 Months Ended
	Aug. 31, 2017
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Basis Of Consolidation	Basis of Consolidation  The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.
Use Of Estimates	Use of Estimates  The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Supplier Risk	Supplier Risk The Company relies on a limited number of suppliers, including single or sole source suppliers for certain of its raw materials, packaging, product components and other necessary supplies. Where possible and where it makes business sense, the Company works with secondary or multiple suppliers to qualify additional supply sources. To date, the Company has been able to obtain adequate supplies of these materials which are used in the production of its maintenance products and homecare and cleaning products in a timely manner from existing sources.
Cash And Cash Equivalents	Cash and Cash Equivalents  Cash equivalents are highly liquid investments purchased with an original maturity of three months or less.
Short-term Investments	Short-term Investments  The Company's short-term investments consist of term deposits and callable time deposits . These short-term investments had a carrying value of $80.2 million and $ 57 . 6 million at August 31, 201 7 and 201 6 , respectively. The term deposits are subject to penalty for early redemption before their maturity , and the callable time deposits require a notice before redemption .
Trade Accounts Receivable And Allowance For Doubtful Accounts	Trade Accounts Receivable and Allowance for Doubtful Accounts  Trade accounts receivable are recorded at the invoiced amount and do not bear interest. The allowance for doubtful accounts is the Company’s best estimate of the amount of probable credit losses in existing accounts receivable. The Company determines the allowance for doubtful accounts based on historical write-off experience and the identification of specific balances deemed uncollectible. Trade accounts receivable are charged against the allowance when the Company believes it is probable that the trade accounts receivable will not be recovered. The Company does not have any off-balance sheet credit exposure related to its customers. Allowance for doubtful accounts related to the Company’s trade accounts receivable were not significant at August 31, 201 7 and 201 6 .
Inventories	  Inventories  Inventories are stated at the lower of cost or market and cost is determined based on a first-in, first-out method or, for a portion of raw materials inventory, the average cost method. When necessary, the Company adjusts the carrying value of its inventory to the lower of cost or market, including any costs to sell or dispose of such inventory. Appropriate consideration is given by the Company to obsolescence, excessive inventory levels, product deterioration and other factors when evaluating net realizable value for the purposes of determining the lower of cost or market.  Included in inventories are amounts for certain raw materials and components that the Company has provided to its third-party contract manufacturers but that remain unpaid to the Company as of the balance sheet date. The Company’s contract manufacturers package products to the Company’s specifications and, upon order from the Company, ship ready-to-sell inventory to either the Company’s third-party distribution centers or directly to its customers. The Company transfers certain raw materials and components to these contract manufacturers for use in the manufacturing process. Contract manufacturers are obligated to pay the Company for these raw materials and components upon receipt. Amounts receivable from the contract manufacturers as of the balance sheet date related to transfers of these raw materials and components by the Company to its contract manufacturers are considered product held at third-party contract manufacturers and are included in inventories in the accompanying consolidated balance sheets.
Property And Equipment	Property and Equipment  Property and equipment is stated at cost. Depreciation is computed using the straight-line method based upon estimated useful lives of ten to forty years for buildings and improvements, three to fifteen years for machinery and equipment, three to five years for vehicles , three to ten years for furniture and fixtures and three to five years for software and computer equipment. Depreciation expense totaled $3.9 million, $3.5 million and $3.4 million for fiscal years 201 7 , 2016 and 2015, respectively. These amounts include factory depreciation expense which is recognized as cost of products sold and totaled $1.1 million for fiscal year 201 7 and $0.8 million for each of the fiscal years ended August 31 , 2016 and 2015 .
Software	Software The Company capitalizes costs related to computer software obtained or developed for internal use. Software obtained for internal use has generally been enterprise-level business and finance software that the Company customizes to meet its specific operational needs. Costs incurred in the application development phase are capitalized and amortized over their useful lives, which are generally three to five years.
Goodwill	Goodwill  Goodwill represents the excess of the purchase price over the fair value of tangible and intangible assets acquired. The carrying value of goodwill is reviewed for possible impairment in accordance with the authoritative guidance on goodwill, intangibles and other. The Company assesses possible impairments to goodwill at least annually during its second fiscal quarter and otherwise when events or changes in circumstances indicate that an impairment condition may exist. In performing the annual impairment test of its goodwill, the Company considers the fair value concepts of a market participant and the highest and best use for its intangible assets. In addition to the annual impairment test, goodwill is evaluated each reporting period to determine whether events and circumstances would more likely than not reduce the fair value of a reporting unit below its carrying value.  When testing goodwill for impairment, the Company first assess es qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. If, after assessing qualitative factors, the Company determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing additional quantitative tests is unnecessary. Otherwise , a two-step quantitative test is performed to identify the potential impairment and to measure the amount of goodwill impairment, if any. Any required impairment losses are recorded as a reduction in the carrying amount of the related asset and charged to results of operations. No goodwill impairments were ident ified by the Company during fiscal years 201 7 , 201 6 and 201 5.
Long-lived Assets	Long-lived Assets  The Company’s long-lived assets consist of property and equipment and definite-lived intangible assets. Long-lived assets are depreciated or amortized, as applicable, on a straight-line basis over their estimated useful lives. The Company assesses potential impairments to its long-lived assets when there is evidence that events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable and/or its remaining useful life may no longer be appropriate. Any required impairment loss would be measured as the amount by which the asset’s carrying amount exceeds its fair value, which is the amount at which the asset could be bought or sold in a current transaction between willing market participants and would be recorded as a reduction in the carrying amount of the related asset and a charge to results of operations. An impairment loss would be recognized when the sum of the expected future undiscounted net cash flows is less than the carrying amount of the asset. No impairments to its long-lived assets were identified by the Company during fiscal years 201 7, 2016 and 201 5 .
Fair Value Of Financial Instruments	Fair Value of Financial Instruments  Accounting Standards Codification (“ASC”) 820, “ Fair Value Measurements and Disclosures” , defines fair value as the exchange price that would be received for an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company categorizes its financial assets and liabilities measured at fair value into a hierarchy that categorizes fair value measurements into the following three levels based on the types of inputs used in measuring their fair value:  Level 1: Observable inputs such as quoted market prices in active markets for identical assets or liabilities; Level 2: Observable market-based inputs or observable inputs that are corroborated by market data; and Level 3: Unobservable inputs reflecting the Company’s own assumptions.  Under fair value accounting, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. As of August 31, 201 7 , the Company had no assets or liabilities that are measured at fair value in the financial statements on a recurring basis, with the exception of the foreign currency forward contracts, which are classified as Level 2 within the fair value hierarchy. The carrying values of cash equivalents, short-term investments and short-term borrowings are recorded at cost, which approximates their fair values primarily due to their short-term maturities and are classified as Level 2 within the fair value hierarchy. In addition, the carrying value of long-term borrowings on the Company’s consolidated balance sheets approximate fair value and is also classified as Level 2 within the fair value hierarchy. During the fiscal years ended August 31, 2017, 2016 and 2015, the Company did not record any significant nonrecurring fair value measurements for assets or liabilities in periods subsequent to their initial recognition.
Concentration Of Credit Risk	Concentration of Credit Risk  Financial instruments, which potentially subject the Company to significant concentrations of credit risk, consist principally of cash and cash equivalents, short-term investments and trade accounts receivable. The Company’s policy is to place its cash in high credit quality financial institutions, in investments that include demand deposits, term deposits and callable time deposits. The Company’s trade accounts receivable are derived from customers located in North America, South America, Asia-Pacific, Europe, the Middle East, Africa and India. The Company limits its credit exposure from trade accounts receivable by performing on-going credit evaluations of customers, as well as insuring its trade accounts receivable in selected markets .
Insurance Coverage	Insurance Coverage  The Company carries insurance policies to cover insurable risks such as property damage, business interruption, product liability, workers’ compensation and other risks, with coverage and other terms that it believes to be adequate and appropriate. These policies may be subject to applicable deductible or retention amounts, coverage limitations and exclusions. The Company does not maintain self-insurance with respect to its material risks; therefore, the Company has not provided for self-insurance reserves as of August 31, 201 7 and 201 6 .
Revenue Recognition And Sales Incentives	Revenue Recognition and Sales Incentives  Sales are recognized as revenue at the time of delivery to the customer when risks of loss and title have passed. Sales are recorded net of allowances for damaged goods and other sales returns, sales incentives, trade promotions and cash discounts.  The Company records the costs of promotional activities such as sales incentives, trade promotions, coupon offers and cash discounts that are given to its customers as a reduction of sales in its consolidated statements of operations. The Company offers on-going trade promotion programs with customers and consumer coupon programs that require the Company to estimate and accrue the expected costs for such programs. Programs include cooperative marketing programs, shelf price reductions, coupons, rebates, consideration and allowances given to retailers for shelf space and/or favorable display positions in their stores and other promotional activities. Costs related to rebates, cooperative advertising and other promotional activities are recorded as a reduction to sales upon delivery of the Company’s products to its customers. Coupon costs are based upon historical redemption rates and are recorded as a reduction to sales as incurred, which is when the coupons are circulated.
Cost Of Products Sold	Cost of Products Sold  Cost of products sold primarily includes the cost of products manufactured on the Company’s behalf by its third-party contract manufacturers, net of volume and other rebates. Cost of products sold also includes the costs to manufacture WD-40 concentrate, which is done at the Company’s own facilities or at third-party contract manufacturers. When the concentrate is manufactured by the Company, cost of products sold includes direct labor, direct materials and supplies; in-bound freight costs related to purchased raw materials and finished product; and depreciation of machinery and equipment used in the manufacturing process.
Selling, General And Administrative Expenses	Selling, General and Administrative Expenses  Selling, general and administrative expenses include costs related to selling the Company’s products, such as the cost of the sales force and related sales and broker commissions; shipping and handling costs paid to third-party companies to distribute finished goods from the Company’s third-party contract manufacturers and distribution centers to its customers; other general and administrative costs related to the Company’s business such as general overhead, legal and accounting fees, insurance, and depreciation; and other employee-related costs to support marketing, human resources, finance, supply chain, information technology and research and development activities.
Shipping And Handling Costs	Shipping and Handling Costs  Shipping and handling costs associated with in-bound freight and movement of product from third-party contract manufacturers to the Company’s third-party warehouses are capitalized in the cost of inventory and subsequently included in cost of sales when recognized in the statement of operations. S hipping and handling costs associated with out-bound transportation are included in selling, general and administrative expenses and are recorded at the time of shipment of product to the Company’s customers. Out-bound shipping and handling costs were $16.4 million, $16. 1 million and $15. 8 million for fiscal years 201 7 , 201 6 and 201 5 , respectively.
Advertising And Sales Promotion Expenses	Advertising and Sales Promotion Expenses  Advertising and sales promotion expenses are expensed as incurred. Advertising and sales promotion expenses include costs associated with promotional activities that the Company pays to third parties, which include costs for advertising (television, print media and internet), administration of coupon programs, consumer promotions, product demonstrations, public relations, agency costs, package design expenses and market research costs. Total advertising and sales promotion expenses were $20.5 million, $22.3 million and $22.9 million for fiscal years 2017, 2016 and 2015, respectively.
Research And Development	Research and Development  The Company is involved in research and development efforts that include the ongoing development or innovation of new products and the improvement, extension or renovation of existing products or product lines. All research and development costs are expensed as incurred and are included in selling, general and administrative expenses. Research and development expenses were $ 8.4 million, $ 7.7 million and $9. 0 million in fiscal years 2017 , 201 6 and 201 5 , respectively. These expenses include costs associated with general research and development activities, as well as those associated with internal staff, overhead, design testing, market research and consultants.
Income Taxes	Income Taxes  Current income tax expense is the amount of income taxes expected to be payable for the current year. A deferred income tax liability or asset is established for the expected future tax consequences resulting from the differences in financial reporting and tax bases of assets and liabilities. A valuation allowance is provided if it is more likely than not that some or all of the deferred tax assets will not be realized. In addition to valuation allowances, the Company provides for uncertain tax positions when such tax positions do not meet the recognition thresholds or measurement standards prescribed by the authoritative guidance on income taxes. Amounts for uncertain tax positions are adjusted in periods when new information becomes available or when positions are effectively settled. The Company recognizes accrued interest and penalties related to uncertain tax positions as a component of income tax expense.  U.S. federal income tax expense is provided on remittances of foreign earnings and on unremitted foreign earnings that are not indefinitely reinvested. U.S. federal income taxes and foreign withholding taxes are not provided when foreign earnings are indefinitely reinvested. The Company determines whether its foreign subsidiaries will invest their undistributed earnings indefinitely based on the capital needs of the foreign subsidiaries and reassesses this determination each reporting period. Changes to the Company’s determination may be warranted based on the Company’s experience as well as its plans regarding future international operations and expected remittances.
Foreign Currency	Foreign Currency  The Company translates the assets and liabilities of its foreign subsidiaries into U.S. dollars at current rates of exchange in effect at the end of the reporting period. Income and expense items are translated at rates that approximate the rates in effect at the transaction date. Gains and losses from translation are included in accumulated other comprehensive income or loss. Gains or losses resulting from foreign currency transactions (transactions denominated in a currency other than the entity’s functional currency) are included as other income (expense) in the Company’s consolidated statements of operations. The Company had $0.4 million and $ 2.4 million of net gains in foreign currency transactions in fiscal years 2017 and 2016, respectively, and $1.7 million of net losses in fiscal year 2015.  In the normal course of business, the Company employs established policies and procedures to manage its exposure to fluctuations in foreign currency exchange rates. The Company’s U.K. subsidiary, whose functional currency is Pound Sterling, utilizes foreign currency forward contracts to limit its exposure to net asset balances held in non-functional currencies, specifically the Euro. The Company regularly monitors its foreign currency exchange rate exposures to ensure the overall effectiveness of its foreign currency hedge positions. While the Company engages in foreign currency hedging activity to reduce its risk, for accounting purposes, none of its foreign currency forward contracts are designated as hedges.  Foreign currency forward contracts are carried at fair value, with net realized and unrealized gains and losses recognized currently in other income (expense) in the Company’s consolidated statements of operations. Cash flows from settlements of foreign currency forward contracts are included in operating activities in the consolidated statements of cash flows. Foreign currency forward contracts in an asset position at the end of the reporting period are included in other current assets, while foreign currency forward contracts in a liability position at the end of the reporting period are included in accrued liabilities in the Company’s consolidated balance sheets. At August 31, 2017, the Company had a notional amount of $ 23 .4 million outstanding in foreign currency forward contracts, which matured in September 2017 . Unrealized net losses related to foreign currency forward contracts were $0.6 million at August 31, 2017, while unrealized net gains and losses were not significant at August 31, 2016. Realized net losses related to foreign currency forward contracts were $0.5 million for the fiscal year ended August 31, 2017, while realized net gains and losses were not significant for the fiscal year ended August 31, 2016.
Earnings Per Common Share	Earnings per Common Share  Unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents, whether paid or unpaid, are participating securities that are required to be included in the computation of earnings per common share pursuant to the two-class method. Accordingly, the Company’s outstanding unvested, if any, and outstanding vested stock-based equity awards that provide such nonforfeitable rights to dividend equivalents are included as participating securities in the calculation of earnings per common share (“EPS”) pursuant to the two-class method.  The Company calculates EPS using the two-class method, which provides for an allocation of net income between common stock and other participating securities based on their respective participation rights to share in dividends. Basic EPS is calculated by dividing net income available to common shareholders for the period by the weighted-average number of common shares outstanding during the period. Net income available to common shareholders for the period includes dividends paid to common shareholders during the period plus a proportionate share of undistributed net income allocable to common shareholders for the period; the proportionate share of undistributed net income allocable to common shareholders for the period is based on the proportionate share of total weighted-average common shares and participating securities outstanding during the period.  Diluted EPS is calculated by dividing net income available to common shareholders for the period by the weighted-average number of common shares outstanding during the period increased by the weighted-average number of potentially dilutive common shares (dilutive securities) that were outstanding during the period if the effect is dilutive. Dilutive securities are comprised of stock options, restricted stock units , market share units and deferred performance units granted under the Company’s prior and current equity incentive plan s .
Stock-based Compensation	Stock-based Compensation  The Company accounts for stock-based equity awards exchanged for employee and non-employee director services in accordance with the authoritative guidance for share-based payments. Under such guidance, stock-based compensation expense is measured at the grant date, based on the estimated fair value of the award, and is recognized as expense, net of estimated forfeitures, over the requisite service period. Compensation expense is amortized on a straight-line basis over the requisite service period for the entire award, which is generally the maximum vesting period of the award.  The fair value of stock options is determined using a Black-Scholes option pricing model. The fair values of restricted stock unit awards and deferred performance unit awards are based on the fair value of the Company’s common stock on the date that such awards are granted. The fair value of market share unit awards is determined using a Monte Carlo simulation model. For the deferred performance unit awards, the Company adjusts the compensation expense over the service period based upon the expected achievement level of the applicable performance condition. As the grant date fair value of market share unit awards reflects the probabilities of the actual number of such awards expected to vest, compensation expense for such awards is not adjusted based on the expected achievement level of the applicable performance condition. An estimated forfeiture rate is applied and included in the calculation of stock-based compensation expense at the time that the stock-based equity awards are granted and revised, if necessary, in subsequent periods if actual forfeiture rates differ from those estimates. Compensation expense related to the Company’s stock-based equity awards is recorded as selling, general and administrative expenses in the Company’s consolidated statements of operations.  The Company calculates its windfall tax benefits additional paid-in capital pool that is available to absorb tax deficiencies in accordance with the short-cut method provided for by the authoritative guidance for share-based payments. As of August 31, 2017, the Company determined that it has a remaining pool of windfall tax benefits.
Segment Information	Segment Information  The Company discloses certain information about its business segments, which are determined consistent with the way the Company’s Chief Operating Decision Maker organizes and evaluates financial information internally for making operating decisions and assessing performance. In addition, the Chief Operating Decision Maker assesses and measures revenue based on product groups.
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards  In August 2014, the FASB issued ASU No. 2014-15, “ Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern ”. This updated guidance requires management to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern within one year of the date that the financial statements are issued and provide related disclosures if necessary . This guidance is effective for the first annual fiscal period ending after December 15, 2016, and for all interim and annual periods thereafter. The Company adopted this guidance in the fourth quarter of fiscal year 2017 on a prospective basis and there was no impact on its consolidated financial statements and related disclosures.
Recently Issued Accounting Standards	Recently Issued Accounting Standards  In May 2017, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2017-09, “ Scope of Modification Accounting ”, to reduce diversity in practice and provide clarity regarding existing guidance in ASC 718, “ Stock Compensation ”. The amendments in this updated guidance clarify that an entity should apply modification accounting in response to a change in the terms and conditions of an entity’s share-based payment awards unless three newly specified criteria are met . This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period. Early adoption is permitted . The Company has evaluated the potential impacts of this updated guidance, and it does not expect the adoption of this guidance to have a material impact on its consolidated financial statements and related disclosures.  In January 2017, the FASB issued ASU No. 2017-04, “Simplifying the Test for Goodwill Impairment”. This updated guidance eliminates Step 2 from the current two-step quantitative model for goodwill impairment tests. Step 2 required an entity to calculate an implied fair value, which included a hypothetical purchase price allocation requirement, for reporting units that failed Step 1. Per this updated guidance, a goodwill impairment will instead be measured as the amount by which a reporting unit’s carrying value exceeds its fair value as identified in Step 1. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017 . The Company has evaluated the potential impacts of this updated guidance, and it does not expect the adoption of this guidance to have a material impact on its consolidated financial statements and related disclosures.  In October 2016, the FASB issued ASU No. 2016-16, “Intra-Entity Transfers of Assets Other Than Inventory”, which requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs . This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period. Early adoption is permitted in the first interim period of an entity's annual financial statements . The Company has evaluated the potential impacts of this updated guidance, and it does not expect the adoption of this guidance to have a material impact on its consolidated financial statements and related disclosures.  In August 2016, the FASB issued ASU No. 2016-15, “ Classification of Certain Cash Receipts and Cash Payments ”. The amendments in this updated guidance address eight specific cash flow issues to reduce the existing diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. This guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within that reporting period. Early adoption is permitted and should be applied using a retrospective approach. The Company is in the process of evaluating the potential impacts of this new guidance on its consolidated financial statements.  In June 2016, the FASB issued ASU No. 2016-13, “ Measurement of Credit Losses on Financial Instruments ”, which requires entities to estimate all expected credit losses for certain types of financial instruments, including trade receivables, held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts . The updated guidance also expands the disclosure requirements to enable users of financial statements to understand the entity’s assumptions, models and methods for estimating expected credit losses. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within that reporting period. Early adoption is permitted. The Company is in the process of evaluating the potential impacts of this new guidance on its consolidated financial statements.  In March 2016, the FASB issued ASU No. 2016-09, “ Improvements to Employee Share-Based Payment Accounting”. The amendments in this updated guidance include changes to simplify the Codification for several aspects of the accounting for share-based payment transactions, including those related to the income tax consequences, classification of awards as either equity or liabilities, accounting for forfeitures, minimum statutory withholding requirements and classification of certain items on the statement of cash flows. Certain of these changes are required to be applied retrospectively while other changes are required to be applied prospectively. This guidance is effective for fiscal years beginning after December 15, 2016, including interim periods within that reporting period. Early adoption was permitted. The Company did not adopt this updated guidance early and therefore this guidance will become effective for the Company during the first quarter of fiscal year 2018 . The Company expects that the adoption of this new guidance will have a more than inconsequential impact on the Company’s consolidated financial statements. For example, if the Company had adopted this updated guidance in fiscal year 2017, its income tax expense for the year would have been reduced by approximately $1.5 million due to the recognition of excess tax benefits in the provision for income taxes rather than through additional paid-in-capital. The Company also expects to change its policy related to forfeitures upon adoption of this new guidance such that it will recognize the impacts of forfeitures as they occur rather than recognizing them based on an estimated forfeiture rate. Although the Company is still assessing the impacts of this change in policy for forfeitures on its consolidated financial statements, it does not expect that the impact will be material. In addition, the Company’s presentation of employee taxes paid on shares of certain equity awards withheld by the Company for tax-withholding purposes will be reported as a financing activity instead of an operating activity in the Consolidated Statement of Cash Flows, while the excess tax benefits from settlements of stock-based equity awards will be reported as an operating activity under this new guidance.  In February 2016, the FASB issued ASU No. 2016-02, “ Leases”. The new standard establishes a right-of-use model that requires a lessee to record a right-of-use asset and a lease liability on the balance sheet for all leases with terms longer than twelve months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. This guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within that reporting period. Early adoption is permitted and should be applied using a modified retrospective approach. The Company is in the process of evaluating the impacts of this new guidance on its consolidated financial statements and related disclosures.  In May 2014, the FASB issued ASU No. 2014-09, “ Revenue from Contracts with Customers ”, which supersedes the revenue recognition requirements in ASC 605, “ Revenue Recognition ”. The core principle of this updated guidance and related amendments is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This new guidance requires an entity to recognize revenue for product sales at the point in time in which control of goods transfers to the Company’s customers which, as defined, could be different than the point in time in which revenue had been recognized by the Company under existing U.S. GAAP, which was based on when title and the risks and rewards of ownership were transferred to the customer. The new guidance also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. Although early adoption is permitted, the Company has concluded that it will not adopt this guidance early and it will become effective for the Company on September 1, 2018. The Company will adopt this new guidance following the modified retrospective approach and will recognize the cumulative effect of initially applying the guidance as an adjustment to the opening balance of retained earnings on September 1, 2018. Management is in the process of a detailed review of the Company’s customer contracts which is focused principally on, but not limited to, identifying the point in time at which the control of goods transfers to customers. Management is nearing the completion of this review and is still in the process of determining the impacts that this new guidance will have on the Company's consolidated financial statements and related disclosures.

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Aug. 31, 2017
Inventories [Abstract]
Schedule Of Inventories	   August 31, August 31,  2017 2016  Product held at third-party contract manufacturers $ 3,021 $ 3,521  Raw materials and components 3,021 2,996  Work-in-process 215 163  Finished goods 29,083 25,113  Total $ 35,340 $ 31,793  

Property And Equipment (Tables)

Property And Equipment (Tables)	12 Months Ended
	Aug. 31, 2017
Property And Equipment [Abstract]
Schedule Of Property And Equipment, Net	   August 31, August 31,  2017 2016  Machinery, equipment and vehicles $ 17,491 $ 14,892  Buildings and improvements 16,953 4,223  Computer and office equipment 4,552 3,605  Software 7,947 7,392  Furniture and fixtures 1,608 1,286  Capital in progress 861 2,200  Land 3,453 254  Subtotal 52,865 33,852  Less: accumulated depreciation and amortization (23,426) (22,307)  Total $ 29,439 $ 11,545  

Goodwill And Other Intangible28

Goodwill And Other Intangible Assets (Tables)	12 Months Ended
	Aug. 31, 2017
Goodwill And Other Intangible Assets [Abstract]
Summary Of Changes In Carrying Amounts Of Goodwill	   Americas EMEA Asia-Pacific Total  Balance as of August 31, 2015 $ 85,532 $ 9,667 $ 1,210 $ 96,409  Translation adjustments (80) (680) - (760)  Balance as of August 31, 2016 85,452 8,987 1,210 95,649  Translation adjustments (4) (48) - (52)  Balance as of August 31, 2017 $ 85,448 $ 8,939 $ 1,210 $ 95,597  
Summary Of Definite-Lived Intangible Assets	   August 31, August 31,  2017 2016  Gross carrying amount $ 35,891 $ 36,009  Accumulated amortization (19,647) (16,818)  Net carrying amount $ 16,244 $ 19,191  
Summary Of Changes In Carrying Amounts Of Definite-Lived Intangible Assets By Segment	   Americas EMEA Asia-Pacific Total  Balance as of August 31, 2015 $ 17,121 $ 5,840 $ - $ 22,961  Amortization expense (2,208) (768) - (2,976)  Translation adjustments - (794) - (794)  Balance as of August 31, 2016 14,913 4,278 - 19,191  Amortization expense (2,207) (672) - (2,879)  Translation adjustments - (68) - (68)  Balance as of August 31, 2017 $ 12,706 $ 3,538 $ - $ 16,244  
Schedule Of Future Estimated Amortization Expense	   Trade Names Customer-Based Technology  Fiscal year 2018 $ 2,419 $ 446 $ 33  Fiscal year 2019 2,414 259 -  Fiscal year 2020 2,019 165 -  Fiscal year 2021 1,230 165 -  Fiscal year 2022 1,229 165 -  Thereafter 5,700 - -  Total $ 15,011 $ 1,200 $ 33  

Accrued And Other Liabilities (

Accrued And Other Liabilities (Tables)	12 Months Ended
	Aug. 31, 2017
Accrued And Other Liabilities [Abstract]
Schedule Of Accrued Liabilities	   August 31, August 31,  2017 2016  Accrued advertising and sales promotion expenses $ 10,889 $ 9,763  Accrued professional services fees 1,456 1,262  Accrued sales taxes and other taxes 1,701 954  Other 4,951 3,778  Total $ 18,997 $ 15,757  
Schedule Of Accrued Payroll And Related Expenses	   August 31, August 31,  2017 2016  Accrued incentive compensation $ 6,554 $ 12,203  Accrued payroll 3,338 3,559  Accrued profit sharing 2,257 2,716  Accrued payroll taxes 1,503 1,744  Other 570 644  Total $ 14,222 $ 20,866  

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	12 Months Ended
	Aug. 31, 2017
Earnings Per Common Share [Abstract]
Schedule Of Reconciliation Of Net Income To Net Income Available To Common Shareholders	   Fiscal Year Ended August 31,  2017 2016 2015  Net income $ 52,930 $ 52,628 $ 44,807  Less: Net income allocated to participating securities (323) (334) (271)  Net income available to common shareholders $ 52,607 $ 52,294 $ 44,536  
Schedule Of Weighted Average Number Of Shares	   Fiscal Year Ended August 31,  2017 2016 2015  Weighted-average common shares outstanding, basic 14,089 14,332 14,582  Weighted-average dilutive securities 34 47 67  Weighted-average common shares outstanding, diluted 14,123 14,379 14,649  

Commitments And Contingencies (

Commitments And Contingencies (Tables)	12 Months Ended
	Aug. 31, 2017
Commitments And Contingencies [Abstract]
Future Minimum Rental Payments	   2018 2019 2020 2021 2022 Thereafter  Operating leases $ 1,856 $ 1,223 $ 893 $ 739 $ 479 $ 470  

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Aug. 31, 2017
Income Taxes [Abstract]
Schedule Of Income Before Income Tax, Domestic And Foreign	   Fiscal Year Ended August 31,  2017 2016 2015  United States $ 42,060 $ 41,128 $ 38,044  Foreign (1) 32,562 31,661 25,066  Income before income taxes $ 74,622 $ 72,789 $ 63,110  (1) Included in these amounts are income before income taxes for the EMEA segment of $28.1 million, $28.3 million and $21.9 million for the fiscal years ended August 31, 2017, 2016 and 2015, respectively.
Schedule Of Components Of Income Tax Expense (Benefit)	   Fiscal Year Ended August 31,  2017 2016 2015  Current:  Federal $ 10,813 $ 13,269 $ 12,302  State 744 894 966  Foreign 7,465 7,593 5,886  Total current 19,022 21,756 19,154   Deferred:  United States 2,627 (1,100) (870)  Foreign 43 (495) 19  Total deferred 2,670 (1,595) (851)  Provision for income taxes $ 21,692 $ 20,161 $ 18,303  
Schedule Of Deferred Tax Assets And Liabilities	   August 31, August 31,  2017 2016  Deferred tax assets:  Accrued payroll and related expenses $ 1,252 $ 1,621  Accounts receivable 644 498  Reserves and accruals 2,393 2,292  Unrealized exchange loss 25 992  Stock-based compensation expense 3,213 2,976  Uniform capitalization 1,598 1,473  Tax credit carryforwards 2,309 2,038  Other 1,264 2,043  Total gross deferred tax assets 12,698 13,933  Valuation allowance (2,328) (2,054)  Total net deferred tax assets 10,370 11,879   Deferred tax liabilities:  Property and equipment, net (2,109) (558)  Amortization of tax goodwill and intangible assets (26,036) (26,321)  Investments in partnerships (679) (744)  Total deferred tax liabilities (28,824) (27,623)  Net deferred tax liabilities $ (18,454) $ (15,744)  
Schedule Of Effective Income Tax Rate Reconciliation	   Fiscal Year Ended August 31,  2017 2016 2015  Amount computed at U.S. statutory federal tax rate $ 26,118 $ 25,476 $ 22,088  State income taxes, net of federal tax benefits 327 397 578  Effect of foreign operations (4,277) (4,382) (3,221)  Benefit from qualified domestic production deduction (1,295) (1,190) (1,131)  Other 819 (140) (11)  Provision for income taxes $ 21,692 $ 20,161 $ 18,303  
Schedule Of Unrecognized Tax Benefits Roll Forward	   Fiscal Year Ended August 31,  2017 2016  Unrecognized tax benefits - beginning of fiscal year $ 1,239 $ 1,279  Net decreases - prior period tax positions (68) -  Net increases - current period tax positions 228 211  Expirations of statute of limitations for assessment (382) (251)  Settlements (36) -  Unrecognized tax benefits - end of fiscal year $ 981 $ 1,239  

Stock-based Compensation (Table

Stock-based Compensation (Tables)	12 Months Ended
	Aug. 31, 2017
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule Of Stock Options Activity	   Weighted-Average  Remaining  Weighted-Average Contractual Term  Number of Exercise Price Per Share Aggregate  Stock Options Shares Per Share (in years) Intrinsic Value  Outstanding at August 31, 2016 27,820 $ 35.59  Granted - $ -  Exercised (21,860) $ 35.47  Forfeited or expired - $ -  Outstanding at August 31, 2017 5,960 $ 36.03 0.1 $ 435  Exercisable at August 31, 2017 5,960 $ 36.03 0.1 $ 435  
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule Of Restricted Stock Units Activity	   Weighted-Average  Grant Date  Number of Fair Value Aggregate  Restricted Stock Units Shares Per Share Intrinsic Value  Outstanding at August 31, 2016 130,035 $ 54.80  Granted 21,501 $ 109.23  Converted to common shares (34,479) $ 58.71  Forfeited (287) $ 81.44  Outstanding at August 31, 2017 116,770 $ 63.61 $ 12,722  Vested at August 31, 2017 87,258 $ 52.78 $ 9,507  
Market Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule Of Valuation Assumptions	   Fiscal Year Ended August 31,  2017 2016 2015  Expected volatility 21.1% 22.2% 22.0%  Risk-free interest rate 1.0% 0.9% 0.8%  Expected dividend yield 0.0% 0.0% 0.0%  
Schedule Of Market Share Units Activity	   Weighted-Average  Grant Date  Number of Fair Value Aggregate  Market Share Units Shares Per Share Intrinsic Value  Outstanding at August 31, 2016 45,700 $ 87.82  Granted 14,683 $ 90.91  Performance factor adjustments 10,974 $ 73.44  Converted to common shares (25,825) $ 71.20  Forfeited (613) $ 82.51  Outstanding at August 31, 2017 (1) 44,919 $ 94.95 $ 4,894   (1) This figure represents the total number of shares underlying MSU grants assuming achievement of the target number of shares at 100%. As the ultimate number of shares that vest could be as high as 200% of the target, the Company may be required to issue additional shares to satisfy outstanding MSU award grants.
Deferred Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule Of Deferred Performance Share Units	   Weighted-Average  Grant Date  Number of Fair Value Aggregate  Deferred Performance Units Shares Per Share Intrinsic Value  Outstanding at August 31, 2016 26,323 $ 94.54  Granted 25,882 $ 110.19  Performance factor adjustments (21,240) $ 94.54  Converted to common shares (89) $ 94.54  Forfeited - $ -  Outstanding at August 31, 2017 30,876 $ 107.66 $ 3,364  Vested at August 31, 2017 4,994 $ 94.54 $ 544  

Business Segments And Foreign34

Business Segments And Foreign Operations (Tables)	12 Months Ended
	Aug. 31, 2017
Business Segments And Foreign Operations [Abstract]
Summarized Information By Reportable Segments	    Unallocated  Americas EMEA Asia-Pacific Corporate (1) Total  Fiscal Year Ended August 31, 2017  Net sales $ 184,929 $ 136,771 $ 58,806 $ - $ 380,506  Income from operations $ 48,303 $ 35,389 $ 16,765 $ (24,548) $ 75,909  Depreciation and  amortization expense $ 4,270 $ 2,090 $ 254 $ 155 $ 6,769  Interest income $ 8 $ 389 $ 111 $ - $ 508  Interest expense $ 2,570 $ - $ 12 $ - $ 2,582   Fiscal Year Ended August 31, 2016  Net sales $ 191,397 $ 135,235 $ 54,038 $ - $ 380,670  Income from operations $ 48,404 $ 31,702 $ 15,162 $ (23,920) $ 71,348  Depreciation and  amortization expense $ 4,071 $ 2,084 $ 280 $ 30 $ 6,465  Interest income $ 5 $ 485 $ 193 $ - $ 683  Interest expense $ 1,689 $ - $ 14 $ - $ 1,703   Fiscal Year Ended August 31, 2015  Net sales $ 187,344 $ 136,847 $ 53,959 $ - $ 378,150  Income from operations $ 46,674 $ 30,173 $ 12,602 $ (24,059) $ 65,390  Depreciation and  amortization expense $ 4,078 $ 2,102 $ 253 $ 31 $ 6,464  Interest income $ 9 $ 417 $ 158 $ - $ 584  Interest expense $ 1,197 $ - $ 8 $ - $ 1,205  (1) Unallocated corporate expenses are general corporate overhead expenses not directly attributable to any one of the operating segments. These expenses are reported separate from the Company’s identified segments and are included in Selling, General and Administrative expenses on the Company’s consolidated statements of operations.
Schedule Of Net Sales By Product Group	   Fiscal Year Ended August 31,  2017 2016 2015  Maintenance products $ 342,295 $ 339,974 $ 333,306  Homecare and cleaning products 38,211 40,696 44,844  Total $ 380,506 $ 380,670 $ 378,150  
Net Sales And Long-Lived Assets By Geographical Area	   Fiscal Year Ended August 31,  2017 2016 2015  Net Sales by Geography:  United States $ 150,086 $ 158,139 $ 153,116  International 230,420 222,531 225,034  Total $ 380,506 $ 380,670 $ 378,150   Long-lived Assets by Geography (2) :  United States $ 23,346 $ 6,419 $ 5,955  International 6,093 5,126 5,421  Total $ 29,439 $ 11,545 $ 11,376  (2) Includes tangible assets and property and equipment, net, attributed to the geographic location in which such assets are located.

Basis Of Presentation And Sum35

Basis Of Presentation And Summary Of Significant Accounting Policies (Short-term Investments) (Narrative) (Details) - USD ($) $ in Thousands	Aug. 31, 2017	Aug. 31, 2016
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Short-term investments	$ 80,166	$ 57,633

Basis Of Presentation And Sum36

Basis Of Presentation And Summary Of Significant Accounting Policies (Property And Equipment) (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Property Plant And Equipment [Line Items]
Depreciation	$ 3.9	$ 3.5	$ 3.4
Cost of goods sold, depreciation	$ 1.1	$ 0.8	$ 0.8
Minimum [Member] | Buildings And Improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	10 years
Minimum [Member] | Machinery And Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	3 years
Minimum [Member] | Vehicles [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	3 years
Minimum [Member] | Furniture And Fixtures [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	3 years
Minimum [Member] | Software and Computer Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	3 years
Maximum [Member] | Buildings And Improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	40 years
Maximum [Member] | Machinery And Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	15 years
Maximum [Member] | Vehicles [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	5 years
Maximum [Member] | Furniture And Fixtures [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	10 years
Maximum [Member] | Software and Computer Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, useful life	5 years

Basis Of Presentation And Sum37

Basis Of Presentation And Summary Of Significant Accounting Policies (Software) (Narrative) (Details)	12 Months Ended
	Aug. 31, 2017
Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life	3 years
Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life	5 years

Basis Of Presentation And Sum38

Basis Of Presentation And Summary Of Significant Accounting Policies (Goodwill) (Narrative) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Feb. 28, 2017	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Impairment of goodwill	$ 0	$ 0	$ 0	$ 0

Basis Of Presentation And Sum39

Basis Of Presentation And Summary Of Significant Accounting Policies (Long-lived Assets) (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Impairment of long-lived assets	$ 0	$ 0	$ 0

Basis Of Presentation And Sum40

Basis Of Presentation And Summary Of Significant Accounting Policies (Shipping And Handling Costs) (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Shipping and handling costs	$ 16.4	$ 16.1	$ 15.8

Basis Of Presentation And Sum41

Basis Of Presentation And Summary Of Significant Accounting Policies (Advertising and Sales Promotion Expenses) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Advertising and sales promotion	$ 20,537	$ 22,278	$ 22,876

Basis Of Presentation And Sum42

Basis Of Presentation And Summary Of Significant Accounting Policies (Research And Development) (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Research and development expense	$ 8.4	$ 7.7	$ 9

Basis Of Presentation And Sum43

Basis Of Presentation And Summary Of Significant Accounting Policies (Foreign Currency) (Narrative) (Details) - USD ($)	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Foreign Currency Transactions [Line Items]
Foreign currency transactions gain (loss), before tax	$ 400,000	$ 2,400,000	$ (1,700,000)
Foreign currency forward contracts outstanding	23,400,000
Unrealized net losses	364,000	(986,000)	$ 2,086,000
Foreign Currency Forward Contracts [Member]
Foreign Currency Transactions [Line Items]
Unrealized net losses	600,000	0
Realized net losses	$ 500,000	$ 0

Basis Of Presentation And Sum44

Basis Of Presentation And Summary Of Significant Accounting Policies (Recently Issued Accounting Standards) (Narrative) (Details) $ in Millions	12 Months Ended
	Aug. 31, 2017USD ($)
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Possible income tax expense reduction	$ 1.5

Inventories (Schedule Of Invent

Inventories (Schedule Of Inventories) (Details) - USD ($) $ in Thousands	Aug. 31, 2017	Aug. 31, 2016
Inventories [Abstract]
Product held at third-party contract manufacturers	$ 3,021	$ 3,521
Raw materials and components	3,021	2,996
Work-in-process	215	163
Finished goods	29,083	25,113
Total	$ 35,340	$ 31,793

Property And Equipment (Schedul

Property And Equipment (Schedule Of Property And Equipment, Net) (Details) - USD ($) $ in Thousands		Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Property Plant And Equipment [Line Items]
Subtotal		$ 52,865	$ 33,852
Less: accumulated depreciation and amortization		(23,426)	(22,307)
Total	[1]	29,439	11,545	$ 11,376
Machinery, Equipment and Vehicles [Member]
Property Plant And Equipment [Line Items]
Subtotal		17,491	14,892
Buildings And Improvements [Member]
Property Plant And Equipment [Line Items]
Subtotal		16,953	4,223
Computer And Office Equipment [Member]
Property Plant And Equipment [Line Items]
Subtotal		4,552	3,605
Software [Member]
Property Plant And Equipment [Line Items]
Subtotal		7,947	7,392
Furniture And Fixtures [Member]
Property Plant And Equipment [Line Items]
Subtotal		1,608	1,286
Capital In Progress [Member]
Property Plant And Equipment [Line Items]
Subtotal		861	2,200
Land [Member]
Property Plant And Equipment [Line Items]
Subtotal		$ 3,453	$ 254
[1]	Includes tangible assets and property and equipment, net, attributed to the geographic location in which such assets are located.

Goodwill And Other Intangible47

Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Feb. 28, 2017	Nov. 30, 2014	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Finite Lived Intangible Assets [Line Items]
Goodwill			$ 95,597,000	$ 95,649,000	$ 96,409,000
Impairment of goodwill	$ 0		0	0	0
Impairment charges			0	0	0
Estimated fair value			16,244,000	$ 19,191,000	$ 22,961,000
GT 85 Limited [Member]
Finite Lived Intangible Assets [Line Items]
Purchase consideration		$ 4,100,000
Cash paid		3,700,000
Goodwill		1,300,000
Customer-Related [Member] | GT 85 Limited [Member]
Finite Lived Intangible Assets [Line Items]
Purchase consideration		$ 1,700,000
Estimated useful life		8 years
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Estimated fair value			15,011,000
Trade Names [Member] | GT 85 Limited [Member]
Finite Lived Intangible Assets [Line Items]
Purchase consideration		$ 900,000
Estimated useful life		10 years
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Estimated fair value			33,000
Technology [Member] | GT 85 Limited [Member]
Finite Lived Intangible Assets [Line Items]
Purchase consideration		$ 200,000
Estimated useful life		4 years
Customer-Based [Member]
Finite Lived Intangible Assets [Line Items]
Estimated fair value			$ 1,200,000

Goodwill And Other Intangible48

Goodwill And Other Intangible Assets (Summary Of Changes In Carrying Amounts Of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Goodwill [Line Items]
Balance, beginning	$ 95,649	$ 96,409
Translation adjustments	(52)	(760)
Balance, ending	95,597	95,649
Americas [Member]
Goodwill [Line Items]
Balance, beginning	85,452	85,532
Translation adjustments	(4)	(80)
Balance, ending	85,448	85,452
EMEA [Member]
Goodwill [Line Items]
Balance, beginning	8,987	9,667
Translation adjustments	(48)	(680)
Balance, ending	8,939	8,987
Asia-Pacific [Member]
Goodwill [Line Items]
Balance, beginning	1,210	1,210
Translation adjustments
Balance, ending	$ 1,210	$ 1,210

Goodwill And Other Intangible49

Goodwill And Other Intangible Assets (Summary Of Definite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Goodwill And Other Intangible Assets [Abstract]
Gross carrying amount	$ 35,891	$ 36,009
Accumulated amortization	(19,647)	(16,818)
Net carrying amount	$ 16,244	$ 19,191	$ 22,961

Goodwill And Other Intangible50

Goodwill And Other Intangible Assets (Summary Of Changes In Carrying Amounts Of Definite-Lived Intangible Assets By Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Beginning balance	$ 19,191	$ 22,961
Amortization expense	(2,879)	(2,976)	$ (3,039)
Translation adjustments	(68)	(794)
Ending balance	16,244	19,191	22,961
Americas [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning balance	14,913	17,121
Amortization expense	(2,207)	(2,208)
Translation adjustments
Ending balance	12,706	14,913	17,121
EMEA [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning balance	4,278	5,840
Amortization expense	(672)	(768)
Translation adjustments	(68)	(794)
Ending balance	3,538	4,278	5,840
Asia-Pacific [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning balance
Amortization expense
Translation adjustments
Ending balance

Goodwill And Other Intangible51

Goodwill And Other Intangible Assets (Schedule Of Future Estimated Amortization Expense) (Details) - USD ($) $ in Thousands	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Net carrying amount	$ 16,244	$ 19,191	$ 22,961
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Fiscal year 2018	2,419
Fiscal year 2019	2,414
Fiscal year 2020	2,019
Fiscal year 2021	1,230
Fiscal year 2022	1,229
Thereafter	5,700
Net carrying amount	15,011
Customer-Based [Member]
Finite-Lived Intangible Assets [Line Items]
Fiscal year 2018	446
Fiscal year 2019	259
Fiscal year 2020	165
Fiscal year 2021	165
Fiscal year 2022	165
Net carrying amount	1,200
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Fiscal year 2018	33
Fiscal year 2019
Fiscal year 2020
Fiscal year 2021
Fiscal year 2022
Thereafter
Net carrying amount	$ 33

Accrued And Other Liabilities52

Accrued And Other Liabilities (Schedule Of Accrued Liabilities) (Details) - USD ($) $ in Thousands	Aug. 31, 2017	Aug. 31, 2016
Accrued And Other Liabilities [Abstract]
Accrued advertising and sales promotion expenses	$ 10,889	$ 9,763
Accrued professional services fees	1,456	1,262
Accrued sales taxes and other taxes	1,701	954
Other	4,951	3,778
Total	$ 18,997	$ 15,757

Accrued And Other Liabilities53

Accrued And Other Liabilities (Schedule Of Accrued Payroll And Related Expenses) (Details) - USD ($) $ in Thousands	Aug. 31, 2017	Aug. 31, 2016
Accrued And Other Liabilities [Abstract]
Accrued incentive compensation	$ 6,554	$ 12,203
Accrued payroll	3,338	3,559
Accrued profit sharing	2,257	2,716
Accrued payroll taxes	1,503	1,744
Other	570	644
Total	$ 14,222	$ 20,866

Debt (Narrative) (Details)

Debt (Narrative) (Details)	12 Months Ended
	Aug. 31, 2017USD ($)	Aug. 31, 2016USD ($)	Nov. 16, 2015USD ($)
Debt Instrument [Line Items]
Revolving credit facility, amount outstanding	$ 154,000,000
Current debt	20,000,000
Line of credit, long-term liability	134,000,000	$ 122,000,000
Revolving credit facility, additional borrowed amount	$ 12,000,000
Second Amended Credit Facility [Member]
Debt Instrument [Line Items]
Consolidated leverage ratio	3
Consolidated interest coverage ratio	3
Fourth Amended Credit Facility [Member]
Debt Instrument [Line Items]
Share buy-back plan, amount authorized			$ 150,000,000
Revolving credit facility, expiration date	May 13, 2020
Capital expenditures	$ 7,500,000
Line Of Credit, Headquarters Office [Member]
Debt Instrument [Line Items]
Current debt	20,000,000
Autoborrow Agreement [Member]
Debt Instrument [Line Items]
Current debt	0
Maximum [Member] | Fourth Amended Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility, amount	175,000,000
9715 Businesspark Avenue, San Diego [Member] | Fourth Amended Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility, amount	$ 18,000,000

Share Repurchase Plans (Narrati

Share Repurchase Plans (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Equity, Class of Treasury Stock [Line Items]
Total cost of repurchased shares	$ 31,109	$ 32,131	$ 30,259
2016 To 2018 Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Share buy-back plan, amount authorized	$ 75,000
Share buy-back plan, number of shares repurchased	290,573
Total cost of repurchased shares	$ 31,100

Earnings Per Common Share (Narr

Earnings Per Common Share (Narrative) (Details) - shares	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Earnings Per Common Share [Abstract]
Anti-dilutive stock options outstanding	0	4,501	1,337

Earnings Per Common Share (Sche

Earnings Per Common Share (Schedule Of Reconciliation Of Net Income To Net Income Available To Common Shareholders) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Earnings Per Common Share [Abstract]
Net income	$ 52,930	$ 52,628	$ 44,807
Less: Net income allocated to participating securities	(323)	(334)	(271)
Net income available to common shareholders	$ 52,607	$ 52,294	$ 44,536

Earnings Per Common Share (Sc58

Earnings Per Common Share (Schedule Of Weighted Average Number Of Shares) (Details) - shares shares in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Earnings Per Common Share [Abstract]
Weighted-average common shares outstanding, basic	14,089	14,332	14,582
Weighted-average dilutive securities	34	47	67
Weighted-average common shares outstanding, diluted	14,123	14,379	14,649

Related Parties (Narrative) (De

Related Parties (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Related Parties [Abstract]
Sales to Tractor Supply	$ 1.2	$ 1.2	$ 1.1
Accounts receivable from Tractor Supply	$ 0	$ 0

Commitments And Contingencies60

Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Loss Contingencies [Line Items]
Rent expense	$ 2.1	$ 1.9	$ 2.1
Purchase Commitment [Member]
Loss Contingencies [Line Items]
Commitment outstanding	0
Indemnification Agreement 1 [Member]
Loss Contingencies [Line Items]
Liabilities related to indemnification agreement	0
Senior Officers And Directors [Member] | Indemnification Agreement 1 [Member]
Loss Contingencies [Line Items]
Liabilities related to indemnification agreement	$ 0

Commitments And Contingencies61

Commitments And Contingencies (Future Minimum Rental Payments) (Details) $ in Thousands	Aug. 31, 2017USD ($)
Commitments And Contingencies [Abstract]
2,018	$ 1,856
2,019	1,223
2,020	893
2,021	739
2,022	479
Thereafter	$ 470

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Income Tax [Line Items]
Operating loss carryforwards	$ 2,400	$ 2,600	$ 2,400
Net deferred tax asset	200	200	200
Tax credit carryforwards	2,038	2,309	$ 2,038
Undistributed earnings of foreign subsidiaries		137,500
Deferred tax liability not recognized. Undistributed earnings of foreign subsidiaries that may be repatriated		$ 12,900
Provision for income taxes		29.10%	27.70%
Repatriation of foreign earnings	8,200
Material interest or penalties included in income tax expense		$ 0	$ 0
Unrecognized tax benefits	1,239	981	1,239	$ 1,279
Unrecognized tax benefits that would impact the effective tax rate	900	600	900
Unrecognized tax benefits affected by the resolution of tax examinations or expiring statutes of limitation		400
Foreign Tax Authority [Member]
Income Tax [Line Items]
Tax credit carryforwards	$ 1,900	$ 2,100	$ 1,900

Income Taxes (Schedule Of Incom

Income Taxes (Schedule Of Income before Income Tax, Domestic And Foreign) (Details) - USD ($) $ in Thousands		12 Months Ended
		Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Income Tax [Line Items]
United States		$ 42,060	$ 41,128	$ 38,044
Foreign	[1]	32,562	31,661	25,066
Income before income taxes		74,622	72,789	63,110
EMEA [Member]
Income Tax [Line Items]
Foreign		$ 28,100	$ 28,300	$ 21,900
[1]	Included in these amounts are income before income taxes for the EMEA segment of $28.1 million, $28.3 million and $21.9 million for the fiscal years ended August 31, 2017, 2016 and 2015, respectively.

Income Taxes (Schedule Of Compo

Income Taxes (Schedule Of Components Of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Income Taxes [Abstract]
Current, Federal	$ 10,813	$ 13,269	$ 12,302
Current, State	744	894	966
Current, Foreign	7,465	7,593	5,886
Total current	19,022	21,756	19,154
Deferred, United States	2,627	(1,100)	(870)
Deferred, Foreign	43	(495)	19
Total deferred	2,670	(1,595)	(851)
Provision for income taxes	$ 21,692	$ 20,161	$ 18,303

Income Taxes (Schedule Of Defer

Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Aug. 31, 2017	Aug. 31, 2016
Income Taxes [Abstract]
Accrued payroll and related expenses	$ 1,252	$ 1,621
Account receivable	644	498
Reserves and accruals	2,393	2,292
Unrealized exchange loss	25	992
Stock-based compensation expense	3,213	2,976
Uniform capitalization	1,598	1,473
Tax credit carryforwards	2,309	2,038
Other	1,264	2,043
Total gross deferred tax assets	12,698	13,933
Valuation allowance	(2,328)	(2,054)
Total net deferred tax assets	10,370	11,879
Property and equipment, net	(2,109)	(558)
Amortization of tax goodwill and intangible assets	(26,036)	(26,321)
Investments in partnerships	(679)	(744)
Total deferred tax liabilities	(28,824)	(27,623)
Net deferred tax liabilities	$ (18,454)	$ (15,744)

Income Taxes (Schedule Of Effec

Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Income Taxes [Abstract]
Amount computed at U.S. statutory federal tax rate	$ 26,118	$ 25,476	$ 22,088
State income taxes, net of federal tax benefits	327	397	578
Effect of foreign operations	(4,277)	(4,382)	(3,221)
Benefit from qualified domestic production deduction	(1,295)	(1,190)	(1,131)
Other	819	(140)	(11)
Provision for income taxes	$ 21,692	$ 20,161	$ 18,303

Income Taxes (Schedule Of Unrec

Income Taxes (Schedule Of Unrecognized Tax Benefits Roll Forward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Income Taxes [Abstract]
Unrecognized tax benefits, Beginning of fiscal year	$ 1,239	$ 1,279
Net decreases - prior period tax positions	(68)
Net increases - current period tax positions	228	211
Expirations of statute of limitations for assessment	(382)	(251)
Settlements	(36)
Unrecognized tax benefits, End of fiscal year	$ 981	$ 1,239

Stock-based Compensation (Narra

Stock-based Compensation (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized under stock plan	1,000,000
Number of shares available for grant	979,546
Allocated share-based compensation expense	$ 4,100	$ 3,700	$ 2,800
Employee service share-based, Tax benefit from compensation expense	$ 1,400	$ 1,200	$ 900
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Compensation cost not yet recognized	$ 800
Remaining weighted-average vesting periods	1 year 6 months
Market Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Compensation cost not yet recognized	$ 1,600
Remaining weighted-average vesting periods	1 year 8 months 12 days
Deferred Performance Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Compensation cost not yet recognized	$ 0

Stock-based Compensation (Sched

Stock-based Compensation (Schedule of Stock Options Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax benefit (expense) from stock-based award	$ 1,539	$ 2,064	$ 1,208
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Number of Shares	27,820
Granted, Number of Shares
Exercised, Number of Shares	(21,860)
Forfeited or expired, Number of Shares
Outstanding, Number of Shares	5,960	27,820
Exercisable, Number of Shares	5,960
Outstanding, Weighted-Average Exercise Price Per Share	$ 35.59
Granted, Weighted-Average Exercise Price Per Share
Exercised, Weighted-Average Exercise Price Per Share	35.47
Forfeited or expired, Weighted-Average Exercise Price Per Share
Outstanding, Weighted-Average Exercise Price Per Share	36.03	$ 35.59
Exercisable, Weighted-Average Exercise Price Per Share	$ 36.03
Outstanding, Weighted-Average Remaining Contractual Term Per Share	1 month 6 days
Exercisable, Weighted-Average Remaining Contractual Term Per Share	1 month 6 days
Outstanding, Aggregate Intrinsic Value	$ 435
Exercisable, Aggregate Intrinsic Value	435
Total intrinsic value of stock options exercised	1,600	$ 2,500	3,300
Income tax benefit (expense) from stock-based award	$ 400	$ 700	$ 1,100

Stock-based Compensation (Sch70

Stock-based Compensation (Schedule Of Restricted Stock Units Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax benefit (expense) from stock-based award	$ 1,539	$ 2,064	$ 1,208
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Number of Shares	130,035
Granted, Number of Shares	21,501
Converted to common shares, Number of Shares	(34,479)
Forfeited, Number of Shares	(287)
Outstanding, Number of Shares	116,770	130,035
Vested, Number of Shares	87,258
Outstanding, Weighted-Average Grant Date Fair Value Per Share	$ 54.80
Granted, Weighted-Average Grant Date Fair Value Per Share	109.23	$ 95.89	$ 69.35
Converted to common shares, Weighted-Average Grant Date Fair Value Per Share	58.71
Forfeited, Weighted-Average Grant Date Fair Value Per Share	81.44
Outstanding, Weighted-Average Grant Date Fair Value Per Share	63.61	$ 54.80
Vested, Weighted-Average Grant Date Fair Value Per Share	$ 52.78
Outstanding, Aggregate Intrinsic Value	$ 12,722
Vested, Aggregate Intrinsic Value	9,507
Total intrinsic value of stock-based awards converted into common shares	3,600	$ 2,800	$ 1,800
Income tax benefit (expense) from stock-based award	$ 1,300	$ 1,000	$ 600

Stock-based Compensation (Sch71

Stock-based Compensation (Schedule Of Market Share Units Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax benefit (expense) from stock-based award	$ 1,539	$ 2,064	$ 1,208
Market Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Number of Shares	45,700
Granted, Number of Shares	14,683
Performance factor adjustment, Number of Shares	10,974
Converted to common shares, Number of Shares	(25,825)		0
Forfeited, Number of Shares	(613)
Outstanding, Number of Shares	44,919	45,700
Outstanding, Weighted-Average Grant Date Fair Value Per Share	$ 87.82
Granted, Weighted-Average Grant Date Fair Value Per Share	90.91	$ 120.99	$ 71.66
Performance factor adjustment, Weighted-Average Grant Date Fair Value Per Share	73.44
Converted to common shares, Weighted-Average Grant Date Fair Value Per Share	71.20
Forfeited, Weighted-Average Grant Date Fair Value Per Share	82.51
Outstanding, Weighted-Average Grant Date Fair Value Per Share	$ 94.95	$ 87.82
Outstanding, Aggregate Intrinsic Value	$ 4,894
Expected volatility	21.10%	22.20%	22.00%
Risk-free interest rate	1.00%	0.90%	0.80%
Expected dividend yield	0.00%	0.00%	0.00%
Expected volatility period	2 years 10 months 21 days	2 years 10 months 21 days	2 years 10 months 17 days
Total intrinsic value of stock-based awards converted into common shares	$ 2,800	$ 3,700
Income tax benefit (expense) from stock-based award	$ 900	$ 1,200
Minimum [Member] | Market Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of original target number of vested shares	0.00%
Maximum [Member] | Market Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of original target number of vested shares	200.00%

Stock-based Compensation (Sch72

Stock-based Compensation (Schedule Of Deferred Performance Share Units) (Details) - Deferred Performance Units [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Number of Shares	26,323
Granted, Number of Shares	25,882
Performance factor adjustment, Number of Shares	(21,240)
Converted to common shares, Number of Shares	(89)	0	0
Forfeited, Number of Shares
Outstanding, Number of Shares	30,876	26,323
Vested, Number of Shares	4,994
Outstanding, Weighted-Average Grant Date Fair Value Per Share	$ 94.54
Granted, Weighted-Average Grant Date Fair Value Per Share	110.19	$ 94.54	$ 75.14
Performance factor adjustment, Weighted-Average Grant Date Fair Value Per Share	94.54
Forfeited, Weighted-Average Grant Date Fair Value Per Share
Outstanding, Weighted-Average Grant Date Fair Value Per Share	107.66	$ 94.54
Vested, Weighted-Average Grant Date Fair Value Per Share	$ 94.54
Outstanding, Aggregate Intrinsic Value	$ 3,364
Vested, Aggregate Intrinsic Value	$ 544
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of original target number of vested shares	0.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of original target number of vested shares	100.00%

Other Benefit Plans (Details)

Other Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan, employer matching contribution, percent of match	50.00%
Defined contribution plan, employer matching contribution, percent of employees' gross pay	6.60%
Defined contribution plan, maximum annual contributions per employee percent	10.00%
Discretionary non-elective contribution, percentage	5.00%
Pension Plan, Defined Benefit [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan, cost recognized	$ 3.3	$ 3.2	$ 3.1
International Pension Plans Defined Benefit [Member]
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Defined contribution plan, cost recognized	$ 1.4	$ 1.5	$ 1.4

Business Segments and Foreign74

Business Segments and Foreign Operations (Summarized Information By Reportable Segments) (Details) $ in Thousands		12 Months Ended
		Aug. 31, 2017USD ($)item	Aug. 31, 2016USD ($)	Aug. 31, 2015USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | item		3
Net sales		$ 380,506	$ 380,670	$ 378,150
Income from operations		75,909	71,348	65,390
Depreciation and amortization expense		6,769	6,465	6,464
Interest income		508	683	584
Interest expense		2,582	1,703	1,205
Unallocated Corporate [Member]
Segment Reporting Information [Line Items]
Income from operations	[1]	(24,548)	(23,920)	(24,059)
Depreciation and amortization expense	[1]	155	30	31
Americas [Member]
Segment Reporting Information [Line Items]
Net sales		184,929	191,397	187,344
Income from operations		48,303	48,404	46,674
Depreciation and amortization expense		4,270	4,071	4,078
Interest income		8	5	9
Interest expense		2,570	1,689	1,197
EMEA [Member]
Segment Reporting Information [Line Items]
Net sales		136,771	135,235	136,847
Income from operations		35,389	31,702	30,173
Depreciation and amortization expense		2,090	2,084	2,102
Interest income		389	485	417
Asia-Pacific [Member]
Segment Reporting Information [Line Items]
Net sales		58,806	54,038	53,959
Income from operations		16,765	15,162	12,602
Depreciation and amortization expense		254	280	253
Interest income		111	193	158
Interest expense		$ 12	$ 14	$ 8
[1]	Unallocated corporate expenses are general corporate overhead expenses not directly attributable to any one of the operating segments. These expenses are reported separate from the Company's identified segments and are included in Selling, General and Administrative expenses on the Company's consolidated statements of operations.

Business Segments And Foreign75

Business Segments And Foreign Operations (Schedule Of Net Sales By Product Group) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Revenue from External Customer [Line Items]
Net sales	$ 380,506	$ 380,670	$ 378,150
Maintenance Products [Member]
Revenue from External Customer [Line Items]
Net sales	342,295	339,974	333,306
Homecare And Cleaning Products [Member]
Revenue from External Customer [Line Items]
Net sales	$ 38,211	$ 40,696	$ 44,844

Business Segments And Foreign76

Business Segments And Foreign Operations (Net Sales And Long-Lived Assets By Geographical Area) (Details) - USD ($) $ in Thousands		12 Months Ended
		Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		$ 380,506	$ 380,670	$ 378,150
Long-lived assets	[1]	29,439	11,545	11,376
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		150,086	158,139	153,116
Long-lived assets	[1]	23,346	6,419	5,955
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		230,420	222,531	225,034
Long-lived assets	[1]	$ 6,093	$ 5,126	$ 5,421
[1]	Includes tangible assets and property and equipment, net, attributed to the geographic location in which such assets are located.

Subsequent Events (Narrative) (

Subsequent Events (Narrative) (Details) - $ / shares	Oct. 10, 2017	Aug. 31, 2017
Subsequent Events [Line Items]
Dividend payable, declared date		Oct. 10, 2017
Dividends payable, date to be paid		Oct. 31, 2017
Dividend payable, record date		Oct. 20, 2017
Subsequent Events [Member]
Subsequent Events [Line Items]
Cash dividend declared	$ 0.49