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Description Of Business And Significant Accounting Policies (Policy)

12 Months Ended

Oct. 01, 2011

Description Of Business And Significant Accounting Policies

Description of Business: Plexus Corp. and its subsidiaries (together "Plexus," the "Company," or "we") participate in the Electronic Manufacturing Services ("EMS") industry. We deliver optimized Product Realization solutions through a unique Product Realization Value Stream services model. This customer focused services model seamlessly integrates innovative product conceptualization, design, commercialization, manufacturing, fulfillment and sustaining services to deliver comprehensive end-to-end solutions for customers in the Americas, European, and Asia-Pacific regions. Customer service is provided to over 130 branded product companies in the Wireline/Networking, Wireless Infrastructure, Medical, Industrial/Commercial and Defense/Security/Aerospace market sectors. Our customers' products typically require exceptional production and supply-chain flexibility, necessitating an optimized demand-pull-based manufacturing and supply chain solution across an integrated global platform. Many of our customers' products require complex configuration management and direct order fulfillment to their customers across the globe. In such cases we provide global logistics management and after-market service and repair. Our customers' products may have stringent requirements for quality, reliability and regulatory compliance. We offer our customers the ability to outsource all phases of product realization, including product specifications; development, design and design verification; regulatory compliance support; prototyping and new product introduction; manufacturing test equipment development; materials sourcing, procurement and supply-chain management; product assembly/manufacturing, configuration and test; order fulfillment, logistics and service/repair.

Consolidation Principles And Basis Of Presentation

Consolidation Principles and Basis of Presentation: The consolidated financial statements have been prepared in accordance with generally accepted accounting principles and include the accounts of Plexus Corp. and its subsidiaries. All intercompany transactions have been eliminated.

The Company's fiscal year ends on the Saturday closest to September 30. The Company also uses a "4-4-5" weekly accounting system for the interim periods in each quarter. Each quarter, therefore, ends on a Saturday at the end of the 4-4-5 period. Periodically, an additional week must be added to the fiscal year to re-align with the Saturday closest to September 30. Fiscal 2009 included this additional week and the fiscal year ended on October 3, 2009. Therefore fiscal 2009 included 371 days. The additional week was added to the first fiscal quarter, ended January 3, 2009, which included 98 days. The accounting years for fiscal 2011 and 2010 each included 364 days.

In the first quarter of fiscal 2011, as previously announced, we completed our migration to a regional reporting structure. This change included establishing regional targets for various financial metrics, delegating additional authority to the regions to manage their business, and changing our related internal reporting. Given this change to regional reporting and management, as well as in the information used by management for assessing performance and allocating Company resources, we modified our reporting segments. Prior to fiscal 2011, the Company's reportable segments consisted of the United States, Asia, Europe and Mexico. During the first quarter of fiscal 2011, we combined our United States and Mexico segments into the "Americas" ("AMER") segment and renamed our Asia segment "Asia-Pacific" ("APAC") and our Europe segment "Europe, Middle East and Africa" ("EMEA") to better represent our long-range regional focus. As a result, we have conformed all prior period segment presentations to be consistent with our current reportable segments. See Note 13 - Reportable Segments, Geographic Information and Major Customers for further information.

Cash Equivalents And Short-Term Investments

Cash and Cash Equivalents: Cash equivalents are highly liquid investments purchased with an original maturity of less than three months.

	2011	2010

Cash	$ 93,587	$ 121,976
Money market funds and other	148,520	66,268
	$ 242,107	$ 188,244

Inventories

Inventories: Inventories are valued at the lower of cost or market. Cost is determined by the first-in, first-out ("FIFO") method. Valuing inventories at the lower of cost or market requires the use of estimates and judgment. Customers may cancel their orders, change production quantities or delay production for a number of reasons that are beyond the Company's control. Any of these, or certain additional actions, could impact the valuation of inventory. Any actions taken by the Company's customers that could impact the value of its inventory are considered when determining the lower of cost or market valuations.

Per contractual terms, customer deposits are received by the Company to offset obsolete and excess inventory risks.

Property, Plant And Equipment And Depreciation

Property, Plant and Equipment and Depreciation: These assets are stated at cost. Depreciation, determined on the straight-line method, is based on lives assigned to the major classes of depreciable assets as follows:

Buildings and improvements 15-50 years

Machinery and equipment 3-10 years

Computer hardware and software 2-10 years

Certain facilities and equipment held under capital leases are classified as property, plant and equipment and amortized using the straight-line method over the lease terms and the related obligations are recorded as liabilities. Lease amortization is included in depreciation expense (see Note 3) and the financing component of the lease payments is classified as interest expense.

For the capitalization of software costs, the Company capitalizes significant costs incurred in the acquisition or development of software for internal use, including the costs of the software, consultants as well as payroll and payroll-related costs for employees directly involved in developing internal use computer software once the final selection of the software is made. Costs incurred prior to the final selection of software and costs not qualifying for capitalization are expensed as incurred.

Expenditures for maintenance and repairs are expensed as incurred.

Goodwill And Other Intangible Assets

Goodwill and Other Intangible Assets: During fiscal 2009, the Company recorded a goodwill impairment charge of $5.7 million, writing off the entire carrying value of its goodwill related to its Kelso, Scotland ("Kelso") facility. The impairment charge was driven by macroeconomic conditions that contributed to an overall reduction in demand for the Company's offerings from the Kelso facility. These conditions led to an "interim triggering event," leading management to perform an interim goodwill impairment test. This test resulted in the determination that the carrying value of the goodwill relating to Kelso, the Company's sole remaining goodwill asset, was fully impaired and therefore an impairment charge of $5.7 million was recorded.

Should the Company have goodwill and intangible assets with indefinite useful lives in the future, the Company would test those assets for impairment at least annually, and recognize any related losses when incurred. Recoverability of goodwill would be measured at the reporting unit level. The Company would measure the recoverability of goodwill under the annual impairment test by comparing the reporting unit's carrying amount, including goodwill, to the reporting unit's estimated fair market value, which would be primarily estimated using the present value of expected future cash flows, although market valuations may also be employed. If the carrying amount of the reporting unit exceeds its fair value, goodwill would be considered impaired and a second test is performed to measure the amount of impairment. Circumstances that may lead to impairment of goodwill include, but are not limited to, the loss of a significant customer or customers and unforeseen reductions in customer demand, future operating performance or industry demand.

Impairment Of Long-Lived Assets

Impairment of Long-Lived Assets: Long-lived assets, including property, plant and equipment and intangible assets with finite lives are reviewed for impairment and written down to fair value when facts and circumstances indicate that the carrying value of long-lived assets may not be recoverable through estimated future undiscounted cash flows. If an impairment has occurred, a write-down to estimated fair value is made and the impairment loss is recognized as a charge against current operations. The impairment analysis is based on management's assumptions, including future revenue and cash flow projections. Circumstances that may lead to impairment of property, plant and equipment include reduced expectations for future performance or industry demand and possible further restructurings, among others.

Revenue Recognition

Revenue Recognition: Net sales from manufacturing services are recognized when the product has been shipped, the risk of ownership has transferred to the customer, the price to the buyer is fixed or determinable, and recoverability is reasonably assured. This point depends on contractual terms and generally occurs upon shipment of the goods from Plexus. Generally, there are no formal customer acceptance requirements or further obligations related to manufacturing services; if such requirements or obligations exist, then a sale is recognized at the time when such requirements are completed and such obligations are fulfilled.

Net sales from engineering design and development services, which are generally performed under contracts with a duration of twelve months or less, are typically recognized as program costs are incurred utilizing the proportional performance model. The completed performance model is used if certain customer acceptance criteria exist. Any losses are recognized when anticipated. Net sales from engineering design and development services were less than five percent of total sales in fiscal 2011, 2010 and 2009.

Sales are recorded net of estimated returns of manufactured products based on management's analysis of historical returns, current economic trends and changes in customer demand. Net sales also include amounts billed to customers for shipping and handling. The corresponding shipping and handling costs are included in cost of sales.

Income Taxes

Income Taxes: Deferred income taxes are provided for the difference between the financial statement balance of assets and liabilities and their respective tax basis. The Company records a valuation allowance against deferred income tax assets when management believes it is more likely than not that some portion or all of the deferred income tax assets will not be realized (see Note 6). Realization of deferred income tax assets is dependent on the Company's ability to generate future taxable income. Recognition of deferred income tax assets is evaluated and tax reserves are recorded to address potential exposures related to income tax positions taken by the Company. These reserves are based on the assumptions and past experiences of the Company and provide for the uncertainty surrounding the application of statutes, rules, regulations, and interpretations to its income tax filings. It is possible that the actual costs or benefits relating to these matters may be materially more or less than the amount the Company estimated.

Foreign Currency Translation

Foreign Currency Translation: We translate assets and liabilities of subsidiaries operating outside of the U.S. with a functional currency other than the U.S. dollar into U.S. dollars using exchange rates in effect at year-end. We translate net sales, expenses and cash flows at the average monthly exchange rates during the respective periods. Adjustments resulting from translation of the financial statements are recorded as a component of "Accumulated other comprehensive income". Exchange gains and losses arising from transactions denominated in a currency other than the functional currency of the entity involved and remeasurement adjustments for foreign operations where the U.S. dollar is the functional currency are included in our Statements of Operations as a component of miscellaneous income (expense). Exchange gains (losses) on foreign currency transactions were $1.0 million, $(1.5) million, and $0.7 million for the fiscal years ended October 1, 2011, October 2, 2010, and October 3, 2009, respectively.

Derivatives

Derivatives: The Company periodically enters into derivative contracts such as foreign currency forwards and interest rate swaps, which are designated as cash flow hedges. All derivatives are recognized on the balance sheet at their estimated fair value. On the date a derivative contract is entered into, the Company designates the derivative as a hedge of a recognized asset or liability (a "fair value" hedge), a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability (a "cash flow" hedge), or a hedge of the net investment in a foreign operation. The Company does not enter into derivatives for speculative purposes. Changes in the fair value of a derivative that qualifies as a fair value hedge are recorded in earnings along with the gain or loss on the hedged asset or liability. Changes in the fair value of a derivative that qualifies as a cash flow hedge are recorded in "Accumulated other comprehensive income" within shareholders' equity, until earnings are affected by the variability of cash flows. Changes in the fair value of a derivative used to hedge the net investment in a foreign operation are recorded in "Accumulated other comprehensive income" within shareholders' equity. Our interest rate swaps and forward contracts are treated as cash flow hedges and, therefore, $(0.4) million, $2.0 million and $(3.2) million were recorded in "Accumulated other comprehensive income" for fiscal 2011, 2010 and 2009, respectively.

Earnings Per Share

Earnings Per Share: The computation of basic earnings per common share is based upon the weighted average number of common shares outstanding and net income. The computation of diluted earnings per common share reflects additional dilution from stock options and restricted stock, excluding any with an antidilutive effect.

Stock-Based Compensation

Stock-based Compensation: The Company measures all share-based payments to employees, including grants of employee stock options, at fair value and expenses them in the Consolidated Statements of Operations over the service period (generally the vesting period) of the grant.

Comprehensive Income

Comprehensive Income: The Company follows the established standards for reporting comprehensive income, which is defined as the changes in equity of an enterprise except those resulting from shareholder transactions.

Accumulated other comprehensive income consists of the following as of October 1, 2011 and October 2, 2010 (in thousands):

	2011	2010

Foreign currency translation adjustment	$ 11,460	$ 9,789
Cumulative change in fair market value of derivative instruments, net of tax	(3,331)	(2,924)
Accumulated other comprehensive income	$ 8,129	$ 6,865

The change in fair market value of derivative instruments, net of tax adjustment that is recorded to "Accumulated other comprehensive income" is more fully explained in Note 5 – Derivatives and Fair Value Measurements.

Conditional Asset Retirement Obligations

Conditional Asset Retirement Obligations: We recognize a liability for the fair value of a conditional asset retirement obligation if the fair value can be reasonably estimated even though uncertainty exists about the timing and/or method of settlement. The liability is adjusted for any additions or deletions of related property, plant and equipment.

Use Of Estimates

Use of Estimates: The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Fair Value Of Financial Instruments

Fair Value of Financial Instruments: Accounts payable and accrued liabilities are reflected in the consolidated financial statements at cost because of the short-term duration of these instruments. Accounts receivable are reflected at net realizable value based on anticipated losses due to potentially uncollectible balances. Anticipated losses were based on management's analysis of historical losses and changes in customers' credit status. The fair value of capital lease obligations was approximately $15.8 million and $18.3 million as of October 1, 2011 and October 2, 2010, respectively. The fair value of the Company's long-term debt was $274.3 million and $105.2 million as of October 1, 2011 and October 2, 2010, respectively. The fair values of the Company's derivatives are disclosed in Note 5. The Company uses quoted market prices when available or discounted cash flows to calculate fair value.

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (or exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The accounting guidance establishes a fair value hierarchy based on three levels of inputs that may be used to measure fair value. The input levels are:

Level 1: Quoted (observable) market prices in active markets for identical assets or liabilities.

Level 2: Inputs other than Level 1 that are observable, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the asset or liability.

Level 3: Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the asset or liability.

Business And Credit Concentrations

Business and Credit Concentrations: Financial instruments that potentially subject the Company to concentrations of credit risk consist of cash, cash equivalents, trade accounts receivable and derivative instruments, specifically related to counterparties. In accordance with the Company's investment policy, the Company's cash, cash equivalents and derivative instruments were placed with recognized financial institutions. The Company's investment policy limits the amount of credit exposure in any one issue and the maturity date of the investment securities that typically comprise investment grade short-term debt instruments. Concentrations of credit risk in accounts receivable resulting from sales to major customers are discussed in Note 13. The Company, at times, requires advanced cash deposits for services performed. The Company also closely monitors extensions of credit.