XML 34 R26.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Accounting Policies, by Policy (Policies) | 12 Months Ended
--- | ---
Aug. 31, 2013
Accounting Policies [Abstract] |
Consolidation, Policy [Policy Text Block] | Principles of Consolidation The Consolidated Financial Statements include the accounts of the Company and its subsidiaries, all of which are wholly-owned. Intercompany balances and transactions are eliminated in consolidation
Use of Estimates, Policy [Policy Text Block] | Use of Estimates The preparation of financial statements is in conformity with accounting principles generally accepted in the United States (“US GAAP”) which requires management to make estimates and assumptions that affect the reported amounts in the financial statements and accompanying notes. These estimates are based on historical information, current trends, and information available from other sources. Actual results could differ from these estimates.
Fiscal Period, Policy [Policy Text Block] | Fiscal Year The Company’s fiscal year ends on the last Saturday in August. For financial reporting purposes, fiscal 2013 consisted of 53 weeks, and fiscal 2012 and fiscal 2011 both consisted of 52 weeks. The additional week was included in the fourth quarter of fiscal 2013.
Cash and Cash Equivalents, Policy [Policy Text Block] | Cash and Cash Equivalents Cash and cash equivalents include cash in banks and bank short-term investments with maturities of less than ninety days.
Fair Value of Financial Instruments, Policy [Policy Text Block] | Financial Instruments The Company’s financial instruments, which may expose the Company to concentrations of credit risk, include cash and cash equivalents, receivables, accounts payable, loans payable and long-term debt. Each of these financial instruments is recorded at cost, which approximates its fair value given the short maturity of each financial instrument.
Revenue Recognition, Policy [Policy Text Block] | Revenue Recognition and Allowance for Doubtful Accounts The Company recognizes revenue from rental operations in the period in which the services are provided. Direct sales revenue is recognized in the period in which the services are performed or when the product is shipped. Management judgments and estimates are used in determining the collectability of accounts receivable and evaluating the adequacy of the allowance for doubtful accounts. The Company considers specific accounts receivable and historical bad debt experience, customer credit worthiness, current economic trends and the age of outstanding balances as part of its evaluation. Changes in estimates are reflected in the period they become known. If the financial condition of the Company’s customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required. Material changes in its estimates may result in significant differences in the amount and timing of bad debt expense recognition for any given period. Revenues do not include taxes we collect from our customers and remit to governmental authorities.
Inventory, Policy [Policy Text Block] | Inventories and Rental Merchandise in Service Inventories are stated at the lower of cost or market value, net of any reserve for excess and obsolete inventory. Judgments and estimates are used in determining the likelihood that new goods on hand can be sold to customers or used in rental operations. Historical inventory usage and current revenue trends are considered in estimating both excess and obsolete inventories. If actual product demand and market conditions are less favorable than those projected by management, additional inventory write-downs may be required. The Company uses the first-in, first-out (“FIFO”) method to value its inventories. As of August 31, 2013, our inventories consisted of $16.7 million of raw materials, $2.4 million of work in process and $55.3 million of finished goods. As of August 25, 2012, our inventories consisted of $18.2 million of raw materials, $1.0 million of work in process and $56.2 million of finished goods. Rental merchandise in service is amortized, primarily on a straight-line basis, over the estimated service lives of the merchandise, which range from 6 to 36 months. In establishing estimated lives for merchandise in service, management considers historical experience and the intended use of the merchandise. Material differences may result in the amount and timing of operating profit for any period if management makes significant changes to these estimates.
Property, Plant and Equipment, Policy [Policy Text Block] | Property, plant and equipment Property, plant and equipment are recorded at cost. Expenditures for maintenance and repairs are expensed as incurred, while expenditures for renewals and betterments are capitalized. The Company provides for depreciation on the straight-line method based on the following estimated useful lives:
Buildings (in years) | 30 | - | 40
Building components (in years) | 10 | - | 20
Leasehold improvements | Shorter of useful life or term of lease
Machinery and equipment (in years) | 3 | - | 10
Motor vehicles (in years) | 3 | - | 5
Long-lived assets, including property, plant and equipment, are evaluated for impairment whenever events or circumstances indicate an asset may be impaired. There have been no material impairments of long-lived assets in fiscal 2013, 2012 or 2011.
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] | Goodwill and Other Intangible Assets In accordance with US GAAP, the Company does not amortize goodwill. Instead, current accounting guidance requires that companies test goodwill for impairment on an annual basis. Management completes its annual impairment test in the fourth quarter of each fiscal year. In addition, US GAAP requires that companies test goodwill if events occur or circumstances change that would more likely than not reduce the fair value of a reporting unit to which goodwill is assigned below its carrying amount. The Company’s evaluation considers changes in the operating environment, competitive information, market trends, operating performance and cash flow modeling. The Company cannot predict future economic conditions and their impact on the Company or the future market value of the Company's stock. A decline in the Company’s market capitalization and/or deterioration in general economic conditions could negatively and materially impact the Company's assumptions and assessment of the fair value of the Company's business. If general economic conditions or the Company's financial performance deteriorate, the Company may be required to record a goodwill impairment charge in the future which could have a material impact on the Company’s financial condition and results of operations. Definite-lived intangible assets are amortized over their useful lives, which are based on management’s estimates of the period that the assets will generate economic benefits. Definite-lived intangible assets are evaluated for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable in accordance with US GAAP. There were no impairments of goodwill or indicators of impairment for definite-lived intangible assets in fiscal 2013, 2012, or 2011. As of August 31, 2013, definite-lived intangible assets have a weighted average useful life of approximately 14.6 years. Customer contracts have a weighted average useful life of approximately 14.9 years and other intangible assets, net, which consist of primarily, restrictive covenants, deferred financing costs and trademarks, have a weighted average useful life of approximately 5.1 years.
Environmental Costs, Policy [Policy Text Block] | Environmental and Other Contingencies The Company is subject to legal proceedings and claims arising from the conduct of its business operations, including environmental matters, personal injury, customer contract matters and employment claims. Accounting principles generally accepted in the United States require that a liability for contingencies be recorded when it is probable that a liability has occurred and the amount of the liability can be reasonably estimated. Significant judgment is required to determine the existence of a liability, as well as the amount to be recorded. The Company regularly consults with attorneys and outside consultants, in its consideration of the relevant facts and circumstances, before recording a contingent liability. The Company records accruals for environmental and other contingencies based on enacted laws, regulatory orders or decrees, the Company’s estimates of costs, insurance proceeds, participation by other parties, the timing of payments, and the input of outside consultants and attorneys. The estimated liability for environmental contingencies has been discounted as of August 31, 2013 using risk-free interest rates ranging from 2.8% to 3.7% over periods ranging from ten to thirty years. The estimated current costs, net of legal settlements with insurance carriers, have been adjusted for the estimated impact of inflation at 3% per year. Changes in enacted laws, regulatory orders or decrees, management’s estimates of costs, risk-free interest rates, insurance proceeds, participation by other parties, the timing of payments and the input of outside consultants and attorneys based on changing legal or factual circumstances could have a material impact on the amounts recorded for environmental and other contingent liabilities. Refer to Note 11, “Commitments and Contingencies”, of these Consolidated Financial Statements for additional discussion and analysis.
Asset Retirement Obligations and Environmental Cost, Policy [Policy Text Block] | Asset Retirement Obligations Under US GAAP, asset retirement obligations generally apply to legal obligations associated with the retirement of long-lived assets that result from the acquisition, construction, development and/or the normal operation of a long-lived asset. The Company recognizes asset retirement obligations in the period in which they are incurred if a reasonable estimate of fair value can be made. The associated asset retirement costs are capitalized as part of the carrying amount of the long-lived asset. The Company has recognized as a liability the present value of the estimated future costs to decommission its nuclear laundry facilities. The Company depreciates, on a straight-line basis, the amount added to Property, plant and equipment and recognizes accretion expense in connection with the discounted liability over the various remaining lives which range from approximately eight to thirty-one years. The estimated liability has been based on historical experience in decommissioning nuclear laundry facilities, estimated useful lives of the underlying assets, external vendor estimates as to the cost to decommission these assets in the future, and federal and state regulatory requirements. The estimated current costs have been adjusted for the estimated impact of inflation at 3% per year. The liability has been discounted using credit-adjusted risk-free rates that range from approximately 7.0% to 7.5%. Revisions to the liability could occur due to changes in the Company’s estimated useful lives of the underlying assets, estimated dates of decommissioning, changes in decommissioning costs, changes in federal or state regulatory guidance on the decommissioning of such facilities, or other changes in estimates. Changes due to revised estimates will be recognized by adjusting the carrying amount of the liability and the related long-lived asset if the assets are still in service, or charged to expense in the period if the assets are no longer in service.
Derivatives, Policy [Policy Text Block] | Derivative Financial Instruments US GAAP requires that all derivative instruments be recorded as other assets or other liabilities at fair value. All subsequent changes in a derivative’s fair value are recognized in income, unless specific hedge accounting criteria are met. Cash flows associated with derivatives are classified in the same category as the cash flows hedged in the Consolidated Statements of Cash Flows. Derivative instruments that qualify for hedge accounting are classified as a hedge of the variability of cash flows to be paid related to a recognized liability or a forecasted transaction. Changes in the fair value of a derivative that is highly effective and designated as a cash flow hedge are recognized in accumulated other comprehensive income (loss) in the Consolidated Balance Sheets until expenses from the cash flows of the hedged items are recognized. The Company performs an assessment at the inception of a hedge and on a quarterly basis thereafter, to determine whether its derivatives are highly effective in offsetting changes in the value of the hedged items. Any change in the fair value resulting from hedge ineffectiveness is immediately recognized as income or expense in the Consolidated Statements of Income. The Company’s hedging activities are transacted only with highly rated institutions, which reduce the exposure to credit risk in the event of nonperformance. Refer to Note 6, “Derivative Instruments and Hedging Activities”, of these Consolidated Financial Statements for additional discussion and analysis.
Insurance [Policy Text Block] | Insurance The Company is self-insured for certain obligations related to health, workers’ compensation, vehicles and general liability programs. The Company also purchases stop-loss insurance policies to protect itself from catastrophic losses. Judgments and estimates are used in determining the potential value associated with reported claims and for events that have occurred, but have not been reported. The Company’s estimates consider historical claims experience and other factors. The Company’s liabilities are based on estimates, and, while the Company believes that its accruals are adequate, the ultimate liability may be significantly different from the amounts recorded. Changes in claims experience, the Company’s ability to settle claims or other estimates and judgments used by management could have a material impact on the amount and timing of expense for any period.
Pension and Other Postretirement Plans, Policy [Policy Text Block] | Supplemental Executive Retirement Plan and other Pension Plans Pension expense is recognized on an accrual basis over employees’ estimated service periods. Pension expense is generally independent of funding decisions or requirements. The Company (1) recognizes in its statement of financial position the over-funded or under-funded status of its defined benefit postretirement plan measured as the difference between the fair value of plan assets and the benefit obligation, (2) recognizes as a component of other comprehensive income, net of tax, the actuarial gains and losses and the prior service costs and credits that arise during the period but are not recognized as components of net periodic benefit cost, (3) measures defined benefit plan assets and defined benefit plan obligations as of the date of its statement of financial position, and (4) discloses additional information in the notes to financial statements about certain effects on net periodic benefit cost in the upcoming fiscal year that arise from delayed recognition of the actuarial gains and losses and the prior service costs and credits. Refer to Note 7, “Employee Benefit Plans”, of these Consolidated Financial Statements for further discussion regarding the Company’s pension plans. The calculation of pension expense and the corresponding liability requires the use of a number of critical assumptions, including the expected long-term rates of return on plan assets, the assumed discount rates, assumed rate of compensation increases and life expectancy of participants. Changes in these assumptions can result in different expense and liability amounts, and future actual experience can differ from these assumptions. Pension expense increases as the expected rate of return on pension plan assets decreases. Future changes in plan asset returns, assumed discount rates and various other factors related to the participants in the Company’s pension plans will impact the Company’s future pension expense and liabilities. The Company cannot predict with certainty what these factors will be in the future.
Income Tax, Policy [Policy Text Block] | Income Taxes The Company computes income tax expense by jurisdiction based on its operations in each jurisdiction. Deferred income taxes are provided for temporary differences between the amounts recognized for income tax and financial reporting purposes at currently enacted tax rates. The Company is periodically reviewed by U.S. domestic and foreign tax authorities regarding the amount of taxes due. These reviews typically include inquiries regarding the timing and amount of deductions and the allocation of income among various tax jurisdictions. In evaluating the exposure associated with various filing positions, the Company records estimated reserves. Refer to Note 4, “Income Taxes”, of these Consolidated Financial Statements for further discussion regarding the Company’s accounting for income taxes and its uncertain tax positions for financial accounting purposes. The Company has undistributed earnings from its foreign subsidiaries of approximately $101 million, $90 million and $78 million as of August 31, 2013, August 25, 2012 and August 27, 2011, respectively. The Company considers these undistributed earnings as indefinitely reinvested and therefore has not provided for U.S. income taxes or foreign withholding taxes. If these earnings were ultimately distributed to the U.S. in the form of dividends or otherwise, or if the shares of its international subsidiaries were sold or transferred, the Company would likely be subject to additional U.S. income taxes, net of the impact of any available foreign tax credits as well as foreign withholding taxes. It is not practicable to estimate the amount of unrecognized deferred U.S. taxes on these undistributed earnings
Advertising Cost, Policy, Expensed Advertising Cost [Policy Text Block] | Advertising Costs Advertising costs are expensed as incurred and are classified as selling and administrative expenses. The Company incurred advertising costs of $1.2 million, $1.5 million and $1.7 million for the fiscal years ended August 31, 2013, August 25, 2012 and August 27, 2011, respectively.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] | Share-Based Compensation The Company adopted a stock incentive plan (the “1996 Plan”) in November 1996 and reserved 1,500,000 shares of Common Stock for issuance under the 1996 Plan. This plan provided for the issuance of stock options and stock appreciation rights (collectively referred to as “Share-Based Awards”). The Company ceased granting new awards under the 1996 Plan as of January 21, 2011, and the 1996 Plan expired in accordance with its terms on January 8, 2012. The Company adopted a stock incentive plan (the “2010 Plan”) in October 2010 and reserved 600,000 shares of Common Stock for issuance under the 2010 Plan. The 2010 Plan replaced the Company’s 1996 Plan. The 2010 Plan permits the award of incentive and non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units, unrestricted stock, performance shares, dividend equivalent rights and cash-based awards. No awards may be made under the 2010 Plan after January 11, 2021. Share-based compensation, which includes expense related to Share-Based Awards and restricted stock grants, has been recorded in the Consolidated Statements of Income in selling and administrative expenses. All Share-Based Awards issued to management were recommended to the Board of Directors by the Compensation Committee and approved by the Board of Directors. All Share-Based Awards issued to the Company’s non-employee members of the Board of Directors under the 2010 Plan were recommended to the Board of Directors by the Compensation Committee and approved by the Board of Directors. Share-Based Awards granted to non-employee directors are granted on the third business day following the annual shareholders' meeting. All Share-Based Awards issued to employees were granted with an exercise price equal to the fair market value of the Company’s Common Stock on the date of grant and are subject to a five-year cliff-vesting schedule under which the awards become fully vested or exercisable after five years from the date of grant and expire ten years after the grant date. Share-Based Awards granted to the Company’s non-employee members of the Board of Directors (the “Directors”) are fully vested as of the date of grant. Prior to fiscal 2009, non-employee Director Share-Based Award grants expired ten years from the grant date. Beginning in fiscal 2009, non-employee director Share-Based Award grants expire eight years after the grant date. US GAAP requires that share-based compensation cost be measured at the grant date based on the value of the award and be recognized as expense over the requisite service period, which is generally the vesting period. Determining the fair value of Share-Based Awards at the grant date requires judgment, including estimating expected dividends, share price volatility and the amount of share-based awards that are expected to be forfeited. The fair value of each Share-Based Award is estimated on the date of grant using the Black-Scholes option pricing model. Compensation expense for all Share-Based Awards is recognized ratably over the related vesting period. Certain Share-Based Awards were granted during fiscal 2013, 2012 and 2011 to non-employee Directors of the Company, which were fully vested upon grant and expire eight years after the grant date. Accordingly, compensation expense related to these Share-Based Awards in fiscal 2013, 2012 and 2011 were recognized on the date of grant. The Company recognizes compensation expense for restricted stock grants over the related vesting period. For unrestricted stock grants compensation expense is recognized on the date of grant. The fair value for each restricted and unrestricted stock grant is determined by using the closing price of the Company’s stock on the date of the grant. Refer to Note 12, “Share-Based Compensation”, of these Consolidated Financial Statements for further discussion regarding the Company’s share-based compensation plans. The fair value of each Share-Based Award is estimated on the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions used:
Fiscal year ended August |  | 2013 |  | 2012 |  | 2011
Risk-free interest rate |  |  | 1.24 | % |  |  | 1.54 | % |  |  | 1.98 | %
Expected dividend yield |  |  | 0.41 | % |  |  | 0.56 | % |  |  | 0.60 | %
Expected life in years |  |  | 7.42 |  |  |  | 7.39 |  |  |  | 7.32 |
Expected volatility |  |  | 33.4 | % |  |  | 33.8 | % |  |  | 34.8 | %
The weighted average fair values of Share-Based Awards granted during fiscal years 2013, 2012 and 2011 were $25.09, $18.28 and $17.59, respectively
Earnings Per Share, Policy [Policy Text Block] | Net Income Per Share The Company calculates net income per share in accordance with US GAAP, which requires the Company to allocate income to its unvested participating securities as part of its earnings per share (“EPS”) calculations. The Class B Common Stock may be converted at any time on a one-for-one basis into Common Stock at the option of the holder of the Class B Common Stock. Diluted earnings per share for the Company’s Common Stock assumes the conversion of all of the Company’s Class B Common Stock into Common Stock, full vesting of outstanding restricted stock, and the exercise of Share-Based Awards under the Company’s stock-based employee compensation plans. The following table sets forth the computation of basic earnings per share using the two-class method for amounts attributable to the Company’s shares of Common Stock and Class B Common Stock (in thousands, except per share data):
Year ended |  | August 31, 2013 |  |  | August 25, 2012 |  |  | August 27, 2011 |
Net income available to shareholders |  | $ | 116,685 |  |  | $ | 94,989 |  |  | $ | 76,486 |
Allocation of net income for Basic: |  |  |  |  |  |  |  |  |  |  |  |
Common Stock |  | $ | 91,916 |  |  | $ | 74,643 |  |  | $ | 59,944 |
Class B Common Stock |  |  | 22,913 |  |  |  | 18,630 |  |  |  | 15,104 |
Unvested participating shares |  |  | 1,856 |  |  |  | 1,716 |  |  |  | 1,438 |
|  | $ | 116,685 |  |  | $ | 94,989 |  |  | $ | 76,486 |
Weighted average number of shares for Basic: |  |  |  |  |  |  |  |  |  |  |  |
Common Stock |  |  | 14,975 |  |  |  | 14,882 |  |  |  | 14,791 |
Class B Common Stock |  |  | 4,666 |  |  |  | 4,643 |  |  |  | 4,658 |
Unvested participating shares |  |  | 345 |  |  |  | 391 |  |  |  | 405 |
|  |  | 19,986 |  |  |  | 19,916 |  |  |  | 19,854 |
Earnings per share for Basic: |  |  |  |  |  |  |  |  |  |  |  |
Common Stock |  | $ | 6.14 |  |  | $ | 5.02 |  |  | $ | 4.05 |
Class B Common Stock |  | $ | 4.91 |  |  | $ | 4.01 |  |  | $ | 3.24 |
The Company calculates diluted EPS for Common Stock using the more dilutive of the following two methods:
| • |  | The treasury stock method; or
| • |  | The two-class method assuming a participating security is not exercised or converted.
For the years ended August 31, 2013, August 25, 2012 and August 27, 2011, the Company’s diluted EPS assumes the conversion of all vested Class B Common Stock into Common Stock and uses the two-class method for its unvested participating shares as follows (in thousands, except per share data):
|  | Year Ended August 31, 2013 |  |  | Year Ended August 25, 2012 |  |  | Year Ended August 27, 2011 |
|  | Earnings to Common shareholders |  |  | Common Shares |  |  | EPS |  |  | Earnings to Common shareholders |  |  | Common Shares |  |  | EPS |  |  | Earnings to Common shareholders |  |  | Common Shares |  |  | EPS |
As reported - Basic |  | $ | 91,916 |  |  |  | 14,975 |  |  | $ | 6.14 |  |  | $ | 74,643 |  |  |  | 14,882 |  |  | $ | 5.02 |  |  | $ | 59,944 |  |  |  | 14,791 |  |  | $ | 4.05 |
Add: effect of dilutive potential common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-Based Awards |  |  | — |  |  |  | 148 |  |  |  |  |  |  |  | — |  |  |  | 91 |  |  |  |  |  |  |  | — |  |  |  | 83 |  |  |  |  |
Class B Common Stock |  |  | 22,913 |  |  |  | 4,666 |  |  |  |  |  |  |  | 18,630 |  |  |  | 4,643 |  |  |  |  |  |  |  | 15,104 |  |  |  | 4,658 |  |  |  |  |
Add: Undistributed earnings allocated to unvested participating shares |  |  | 1,810 |  |  |  | — |  |  |  |  |  |  |  | 1,664 |  |  |  | — |  |  |  |  |  |  |  | 1,385 |  |  |  | — |  |  |  |  |
Less: Undistributed earnings reallocated to unvested participating shares |  |  | (1,712 | ) |  |  | — |  |  |  |  |  |  |  | (1,579 | ) |  |  | — |  |  |  |  |  |  |  | (1,315 | ) |  |  | — |  |  |  |  |
Diluted EPS – Common Stock |  | $ | 114,927 |  |  |  | 19,789 |  |  | $ | 5.81 |  |  | $ | 93,358 |  |  |  | 19,616 |  |  | $ | 4.76 |  |  | $ | 75,118 |  |  |  | 19,532 |  |  | $ | 3.85 |
Share-Based Awards that would result in the issuance of 152 shares of Common Stock were excluded from the calculation of diluted earnings per share for the year ended August 31, 2013 because they were anti-dilutive. There were no shares of common stock that were excluded from the calculation of diluted earnings per share for the year ended August 25, 2012. Share-Based Awards that would result in the issuance of 116,487 shares of Common Stock were excluded from the calculation of diluted earnings per share for the year ended August 27, 2011 because they were anti-dilutive
Foreign Currency Transactions and Translations Policy [Policy Text Block] | Foreign Currency Translation The functional currency of our foreign operations is the local country’s currency. Transaction gains and losses, including gains and losses on our intercompany transactions, are included in other expense (income) in the accompanying Consolidated Statements of Income. Assets and liabilities of operations outside the United States are translated into U.S. dollars using period-end exchange rates. Revenues and expenses are translated at the average exchange rates in effect during each month of the fiscal year. The effects of foreign currency translation adjustments are included in shareholders’ equity as a component of accumulated other comprehensive income in the accompanying Consolidated Balance Sheets.
New Accounting Pronouncements, Policy [Policy Text Block] | Recent Accounting Pronouncements In May 2011, the FASB issued updated accounting guidance to amend existing requirements for fair value measurements and disclosures. The guidance expands the disclosure requirements around fair value measurements categorized in Level 3 of the fair value hierarchy and requires disclosure of the level in the fair value hierarchy of items that are not measured at fair value but whose fair value must be disclosed. It also clarifies and expands upon existing requirements for fair value measurements of financial assets and liabilities as well as instruments classified in shareholders’ equity. The guidance was effective for interim and annual financial periods beginning after December 15, 2011. The Company adopted this revised guidance on August 26, 2012 and the adoption did not have a material impact on its financial statements. In June 2011, the FASB issued updated accounting guidance that improves the comparability, consistency, and transparency of financial reporting and increases the prominence of items reported in other comprehensive income by eliminating the option to present components of other comprehensive income as part of the statement of changes in shareholders’ equity. The amendments to the existing standard require that all nonowner changes in shareholders’ equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The amendments to the existing standard do not change the current option for presenting components of OCI gross or net of the effect of income taxes, provided that such tax effects are presented in the statement in which OCI is presented or disclosed in the notes to the financial statements. Additionally, the standard does not affect the calculation or reporting of earnings per share. This guidance was effective for annual reporting periods, and any interim periods within those annual periods, that began after December 15, 2011 and is to be applied retrospectively, with early adoption permitted. The Company adopted this revised guidance on August 26, 2012 and the adoption did not have a material impact on its financial statements. In September 2011, the FASB issued updated guidance intended to simplify how entities, both public and nonpublic, test for goodwill impairment. This guidance permits an entity to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. Also, the guidance improves the examples of events and circumstances that an entity having a reporting unit with a zero or negative carrying amount should consider in determining whether to measure an impairment loss, if any, under the second step of the goodwill impairment test. This guidance was effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011, with early adoption permitted. The Company adopted this revised guidance on August 26, 2012 and the adoption did not have a material impact on its financial statements. In February 2013, the FASB issued updated accounting guidance that improves the reporting of reclassifications out of accumulated other comprehensive income. The amendments in this updated guidance require an entity to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income if the amount being reclassified is required under US GAAP to be reclassified in its entirety to net income. For other amounts that are not required under US GAAP to be reclassified in their entirety to net income in the same reporting period, an entity is required to cross-reference other disclosures required under US GAAP that provide additional detail about those amounts. This guidance was effective for annual reporting periods, and any interim periods within those annual periods, that begin after December 15, 2012 and is to be applied prospectively, with early adoption permitted. The Company does not expect this guidance to have a material impact on its financial statements.

X
- Definition Disclosure of accounting policy on self-insurance related to health, workers' compensation, vehicles and general liability programs. Disclosure may include but limited to : (1) The purchase of stop-loss insurance policies as protection from catastrophic losses; and (2) Judgments and estimates used in determining the potential value associated with reported claims and for events that have occurred, but have not been reported. + References No definition available. + Details
Name: | unf_InsurancePolicyTextBlock
Namespace Prefix: | unf_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for advertising costs that are expensed, indicating whether such costs are expensed as incurred or the first period in which the advertising takes place. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=32704220&loc=d3e8275-108329 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 20 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6387522&loc=d3e8384-108330 + Details
Name: | us-gaap_AdvertisingCostPolicyExpensedAdvertisingCost
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for (1) legal obligations associated with the disposal or removal of a long-lived asset from service that result from the acquisition, construction, or development or from the normal operation of a long-lived asset (except obligations of a lessee in connection with leased property that are minimum lease payments or contingent rentals, or obligations that arise solely from a plan to sell or otherwise dispose of a long-lived asset); and (2) certain environmental remediation liabilities that resulted from the improper or other-than-normal operation of a long-lived asset. This accounting policy may address (1) whether the related remediation costs are expensed or capitalized, (2) whether the obligation is measured on a discounted basis, (3) the event, situation, or set of circumstances that generally triggers recognition of loss contingencies arising from the entity's environmental remediation-related obligations, and (4) the timing of recognition of any recoveries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2175671 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13231-110859 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2175709 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 55 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=6571209&loc=d3e13669-110860 + Details
Name: | us-gaap_AssetRetirementObligationsAndEnvironmentalCostPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2122427 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 203 -Paragraph 02-03 + Details
Name: | us-gaap_CashAndCashEquivalentsPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02, 03 -Article 3A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2197480 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 40 -Section 45 -URI http://asc.fasb.org/section&trid=2197723 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196966 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2197087 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.3A-02) -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355033-122828 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33801-111570 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=18733093&loc=d3e5614-111684 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph k -Article 1 + Details
Name: | us-gaap_ConsolidationPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for its derivative instruments and hedging activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41620-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579240-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41638-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph n -Article 4 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41675-113959 + Details
Name: | us-gaap_DerivativesPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2144384 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 + Details
Name: | us-gaap_EarningsPerSharePolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for obligations that resulted from improper or other-than normal operation of a long-lived asset in the past. This accounting policy may address (1) whether the related remediation costs are expensed or capitalized, (2) whether the obligation is measured on a discounted basis, (3) the event, situation, or set of circumstances that generally triggers recognition of loss contingencies arising from the entity's environmental remediation-related obligations, and (4) the timing of recognition of any recoveries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13231-110859 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2175709 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 55 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=6571209&loc=d3e13669-110860 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13185-110859 + Details
Name: | us-gaap_EnvironmentalCostsPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for determining the fair value of financial instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2155942 + Details
Name: | us-gaap_FairValueOfFinancialInstrumentsPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for determining an entity's fiscal year or other fiscal period. This disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph k -Article 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=7656940&loc=d3e5291-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.3A-03.(b)) -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355100-122828 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.3A-02.(b)) -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355033-122828 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph b -Article 3A Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 06 -Article 3 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph b -Article 3A + Details
Name: | us-gaap_FiscalPeriod
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for (1) transactions denominated in a currency other than the reporting enterprise's functional currency, (2) translating foreign currency financial statements that are incorporated into the financial statements of the reporting enterprise by consolidation, combination, or the equity method of accounting, and (3) remeasurement of the financial statements of a foreign reporting enterprise in a hyperinflationary economy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2175856 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2175826 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2175892 + Details
Name: | us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for goodwill. This accounting policy also may address how an entity assesses and measures impairment of goodwill, how reporting units are determined, how goodwill is allocated to such units, and how the fair values of the reporting units are determined. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2144439 + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2144681 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2144749 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32840-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 740 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32809-109319 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e32247-109318 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e32280-109318 + Details
Name: | us-gaap_IncomeTaxPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for major classes of inventories, bases of stating inventories (for example, lower of cost or market), methods by which amounts are added and removed from inventory classes (for example, FIFO, LIFO, or average cost), loss recognition on impairment of inventories, and situations in which inventories are stated above cost. If inventory is carried at cost, this disclosure includes the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Subparagraph a -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2126999 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28360613&loc=d3e4492-108314 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 206 -Paragraph b -Subparagraph i, ii -Chapter 2 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28360613&loc=d3e4556-108314 + Details
Name: | us-gaap_InventoryPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. + References No definition available. + Details
Name: | us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for pension and other postretirement benefit plans. This accounting policy may address (1) the types of plans sponsored by the entity, and the benefits provided by each plan (2) groups that participate in (or are covered by) each plan (3) how plan assets, liabilities and expenses are measured, including the use of any actuaries and (4) significant assumptions used by the entity to value plan assets and liabilities and how such assumptions are derived. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -URI http://asc.fasb.org/subtopic&trid=2235144 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -URI http://asc.fasb.org/subtopic&trid=2235116 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -URI http://asc.fasb.org/subtopic&trid=2235172 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2235074 + Details
Name: | us-gaap_PensionAndOtherPostretirementPlansPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2155824 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 + Details
Name: | us-gaap_PropertyPlantAndEquipmentPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18726-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section B -Paragraph Question 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.B.Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18823-107790 + Details
Name: | us-gaap_RevenueRecognitionPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(f) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2228939 + Details
Name: | us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6143-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6132-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6061-108592 + Details
Name: | us-gaap_UseOfEstimates
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration