10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended June 29, 2013

or

¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Commission File Number 001-14423

PLEXUS CORP.

(Exact name of registrant as specified in charter)

Wisconsin	39-1344447
(State of Incorporation)	(IRS Employer Identification No.)

One Plexus Way

Neenah, Wisconsin 54956

(Address of principal executive offices)(Zip Code)

Telephone Number (920) 969-6000

(Registrant’s telephone number, including Area Code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	ý	Accelerated filer	¨
Non-accelerated filer	¨  (Do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  ý

As of July 29, 2013, there were 33,750,676 shares of Common Stock of the Company outstanding.

PLEXUS CORP.

TABLE OF CONTENTS

June 29, 2013

PART I. FINANCIAL INFORMATION	3
ITEM 1. FINANCIAL STATEMENTS	3
Condensed Consolidated Statements of Comprehensive Income	3
Condensed Consolidated Balance Sheets	4
Condensed Consolidated Statements of Cash Flows	5
Notes to Condensed Consolidated Financial Statements	6
ITEM  2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	15
“Safe Harbor” Cautionary Statement	15
Overview	15
Results of Operations	16
Reportable Segments	19
Liquidity and Capital Resources	20
Contractual Obligations, Commitments and Off-Balance Sheet Obligations	22
Disclosure About Critical Accounting Policies	23
New Accounting Pronouncements	23
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	24
ITEM 4. CONTROLS AND PROCEDURES	25
PART II. OTHER INFORMATION	26
ITEM 1A. Risk Factors	26
ITEM 2. Unregistered Sales of Equity Securities and Use Of Proceeds	26
ITEM 6. Exhibits	27
SIGNATURES	28

2

PART I.     FINANCIAL INFORMATION

ITEM 1.    FINANCIAL STATEMENTS

PLEXUS CORP. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(in thousands, except per share data)

Unaudited

	Three Months Ended						Nine Months Ended
	June 29, 2013			June 30, 2012			June 29, 2013			June 30, 2012
Net sales	$	571,945		$	608,819		$	1,660,301		$	1,711,943
Cost of sales	516,472			551,426			1,501,645			1,548,274
Gross profit	55,473			57,393			158,656			163,669
Selling and administrative expenses	30,289			30,113			88,800			86,859
Operating income	25,184			27,280			69,856			76,810
Other income (expense):
Interest expense	(2,650		)	(4,125		)	(10,010		)	(12,205		)
Interest income	402			446			1,182			1,344
Miscellaneous	8			1,860			(467		)	1,543
Income before income taxes	22,944			25,461			60,561			67,492
Income tax (benefit) expense	(260		)	1,928			2,766			6,131
Net income	$	23,204		$	23,533		$	57,795		$	61,361
Earnings per share:
Basic	$	0.69		$	0.67		$	1.71		$	1.76
Diluted	$	0.68		$	0.66		$	1.69		$	1.73
Weighted average shares outstanding:
Basic	33,797			34,982			33,744			34,819
Diluted	34,363			35,643			34,226			35,501
Comprehensive income:
Net income	$	23,204		$	23,533		$	57,795		$	61,361
Derivative instrument fair market value adjustment—net of income tax	(3,202		)	(1,113		)	(2,479		)	2,546
Foreign currency translation adjustments	1,271			(2,475		)	1,861			(1,298		)
Comprehensive income	$	21,273		$	19,945		$	57,177		$	62,609

See notes to condensed consolidated financial statements.

3

PLEXUS CORP. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except per share data)

Unaudited

	June 29, 2013			September 29, 2012
ASSETS
Current assets:
Cash and cash equivalents	$	285,604		$	297,619
Accounts receivable, net of allowances of $1,156 and $1,011, respectively	335,118			323,210
Inventories	439,583			457,691
Deferred income taxes	2,262			2,232
Prepaid expenses and other	22,267			15,785
Total current assets	1,084,834			1,096,537
Property, plant and equipment, net	314,511			265,191
Deferred income taxes	4,068			4,335
Other	41,547			42,136
Total assets	$	1,444,960		$	1,408,199
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities:
Current portion of long-term debt and capital lease obligations	$	2,984		$	10,211
Accounts payable	304,913			341,276
Customer deposits	105,608			36,384
Accrued liabilities:
Salaries and wages	36,193			45,450
Other	39,035			46,550
Total current liabilities	488,733			479,871
Long-term debt and capital lease obligations, net of current portion	258,758			260,211
Other liabilities	17,930			19,095
Total non-current liabilities	276,688			279,306
Commitments and contingencies (Note 13)
Shareholders’ equity:
Preferred stock, $.01 par value, 5,000 shares authorized, none issued or outstanding	—			—
Common stock, $.01 par value, 200,000 shares authorized, 48,984 and 48,851 shares issued, respectively, and 33,819 and 35,097 shares outstanding, respectively	490			489
Additional paid-in capital	444,932			435,546
Common stock held in treasury, at cost, 15,164 and 13,754 shares, respectively	(436,157		)	(400,110		)
Retained earnings	654,708			596,913
Accumulated other comprehensive income	15,566			16,184
Total shareholders’ equity	679,539			649,022
Total liabilities and shareholders’ equity	$	1,444,960		$	1,408,199

See notes to condensed consolidated financial statements.

4

PLEXUS CORP. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

Unaudited

	Nine Months Ended
	June 29, 2013			June 30, 2012
Cash flows from operating activities
Net income	$	57,795		$	61,361
Adjustments to reconcile net income to cash flows from operating activities:
Depreciation	35,732			36,119
Amortization of intangibles	1,549			779
Gain on sale of property, plant and equipment	(72		)	(1,228		)
Deferred income taxes	(79		)	1,636
Stock based compensation expense	9,012			9,588
Changes in operating assets and liabilities, excluding effects of acquisition:
Accounts receivable	(11,287		)	(28,643		)
Inventories	18,287			(6,400		)
Prepaid expenses and other	(7,350		)	(4,598		)
Accounts payable	(39,133		)	58,009
Customer deposits	69,301			4,286
Accrued liabilities and other	(16,853		)	(14,090		)
Cash flows provided by operating activities	116,902			116,819
Cash flows from investing activities
Payments for property, plant and equipment	(84,259		)	(45,068		)
Proceeds from sales of property, plant and equipment	520			2,753
Sale of long-term investments	—			2,000
Payments for business acquisition, net of cash acquired	—			(34,155		)
Cash flows used in investing activities	(83,739		)	(74,470		)
Cash flows from financing activities
Proceeds from debt issuance, net of deferred finance costs	—			89,082
Payments on debt and capital lease obligations	(9,929		)	(102,977		)
Repurchases of common stock	(36,047		)	—
Proceeds from exercise of stock options	725			6,087
Minimum tax withholding related to vesting of restricted stock	(350		)	(310		)
Income tax benefit of stock option exercises	—			1,717
Cash flows used in financing activities	(45,601		)	(6,401		)
Effect of exchange rate changes on cash and cash equivalents	423			(146		)
Net (decrease) increase in cash and cash equivalents	(12,015		)	35,802
Cash and cash equivalents:
Beginning of period	297,619			242,107
End of period	$	285,604		$	277,909

See notes to condensed consolidated financial statements.

5

PLEXUS CORP. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

FOR THE THREE AND NINE MONTHS ENDEDJUNE 29, 2013 AND JUNE 30, 2012

Unaudited

NOTE 1—BASIS OF PRESENTATION AND ACCOUNTING POLICIES

Basis of Presentation

The accompanying condensed consolidated financial statements included herein have been prepared by Plexus Corp. and its subsidiaries (together “Plexus,” the “Company,” or “we”) without audit and pursuant to the rules and regulations of the United States (“U.S.”) Securities and Exchange Commission (“SEC”). In the opinion of the Company, the accompanying condensed consolidated financial statements reflect all adjustments, which include normal recurring adjustments necessary for the fair statement of the consolidated financial position of the Company as of June 29, 2013 and September 29, 2012, and the results of operations for the three and nine months endedJune 29, 2013 and June 30, 2012, and the cash flows for the same nine month periods.

Certain information and footnote disclosures, normally included in financial statements prepared in accordance with generally accepted accounting principles, have been condensed or omitted pursuant to the SEC’s rules and regulations dealing with interim financial statements. However, the Company believes that the disclosures made in the condensed consolidated financial statements included herein are adequate to make the information presented not misleading. It is suggested that these condensed consolidated financial statements be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s 2012 Annual Report on Form 10-K.

The Company’s reportable segments consist of the “Americas” (“AMER”) segment, “Asia-Pacific” (“APAC”) segment and “Europe, Middle East, and Africa” (“EMEA”) segment. Refer to Note 10, "Business Segments," for further details on reportable segments.

Cash and Cash Equivalents

Cash and cash equivalents include highly liquid investments with original maturities of three months or less at the time of purchase and are classified as Level 1 in the fair level hierarchy described below.

Fair Value of Financial Instruments

The Company holds financial instruments consisting of cash and cash equivalents, accounts receivable, accounts payable, debt, derivatives, and capital lease obligations. The carrying values of cash and cash equivalents, accounts receivable, accounts payable, derivatives, and capital lease obligations as reported in the condensed consolidated financial statements approximate fair value. Accounts receivable were 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 the Company’s long-term debt was $246.3 million and $256.8 million as of June 29, 2013 and September 29, 2012, respectively. The carrying value of the Company’s long-term debt was $250.0 million and $257.5 million for the periods ended June 29, 2013 and September 29, 2012, respectively. The Company uses quoted market prices when available or discounted cash flows to calculate the fair value of its debt. If measured at fair value in the financial statements, long-term debt (including the current portion) would be classified as Level 2 in the fair value hierarchy described below. Refer to Note 6, "Derivatives and Fair Value Measurements," for further details on derivatives.

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.

Reclassifications

6

Certain amounts in prior year periods within financing activities on the Consolidated Statements of Cash Flows were reclassified to conform to the current year presentation.

NOTE 2—BUSINESS COMBINATION

In January 2012, Plexus and Kontron AG (“Kontron”) entered into a strategic manufacturing arrangement, and completed the related asset purchase transaction described below. Under this arrangement, Kontron transitioned all manufacturing of its Kontron Design Manufacturing Services (M) Sdn. Bhd. subsidiary (“KDMS”) located in Penang, Malaysia to Plexus facilities in Penang. Plexus acquired the inventory and equipment of KDMS for an adjusted purchase price of $34.2 million, reflecting certain post-closing adjustments, which was paid with cash on-hand, and hired substantially all of KDMS's employees. No real estate was included in this transaction. This transaction was accounted for as a business combination. The purchase price was allocated primarily to inventory and equipment. An identifiable intangible asset of $4.0 million related to a customer relationship was recorded within other non-current assets in the Company's accompanying Condensed Consolidated Balance Sheets as a result of the arrangement and is being amortized on a straight-line basis over a two year period. Assuming this transaction had been made at the beginning of fiscal 2012, the consolidated pro forma results would not be materially different from reported results.

NOTE 3—INVENTORIES

Inventories are stated at the lower of cost (on a first-in, first-out basis) or market value. The stated cost is comprised of direct materials, labor, and overhead. The major classes of inventories, net of applicable lower of cost or market write-downs, were as follows (in thousands):

	June 29, 2013		September 29, 2012
Raw materials	$	310,832	$	337,657
Work-in-process	55,229		47,182
Finished goods	73,522		72,852
	$	439,583	$	457,691

Per contractual terms, customer deposits are received by the Company to offset obsolete and excess inventory risks. The total amount of customer deposits related to inventory and included within current liabilities on the accompanying Condensed Consolidated Balance Sheets as of June 29, 2013 and September 29, 2012 was $61.4 million and $34.8 million, respectively. Approximately $17.9 million of the inventory customer deposit balance as of June 29, 2013 relates to the disengagement of Juniper Networks, Inc. ("Juniper").

NOTE 4—PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consisted of the following categories (in thousands):

	June 29, 2013		September 29, 2012
Land, buildings and improvements	$	211,894	$	170,557
Machinery and equipment	312,169		295,548
Computer hardware and software	92,084		85,433
Construction in progress	53,197		39,894
	669,344		591,432
Less: accumulated depreciation	354,833		326,241
	$	314,511	$	265,191

The major component of the construction in progress balance is related to footprint expansion in Neenah, Wisconsin.

NOTE 5—DEBT

On May 15, 2012, the Company entered into a five-year, $250 million senior unsecured credit facility that terminates on May 15, 2017 (the “Credit Facility”). The Credit Facility includes a $160 million revolving credit facility and a $90 million

7

term loan. The revolving credit facility may be increased by $100 million (the "increase option") to $260 million generally by mutual agreement of the Company, the lenders, the letter of credit issuers and the administrative agent named in the related credit agreement (the "Credit Agreement"), subject to certain customary conditions. The Credit Facility was used to refinance the Company's then-existing $100 million senior unsecured revolving credit facility (no amounts were outstanding at that time) and its $150 million senior unsecured term loan (balance of $90.0 million as of May 15, 2012), both of which were scheduled to mature on April 4, 2013 (the “Prior Credit Facility”), and for general corporate purposes. Quarterly principal repayments of the Credit Facility term loan of $3.75 million per quarter began on June 29, 2012 and ended on March 28, 2013. The final $75 million payment is due on May 15, 2017. As of June 29, 2013, the Company had term loan borrowings of $75 million outstanding and no revolving borrowings under the Credit Facility.

The financial covenants (as defined under the Credit Facility) require that the Company maintain, as of each fiscal quarter end, a maximum total leverage ratio and a minimum interest coverage ratio. As of June 29, 2013, the Company was in compliance with all covenants of the Credit Facility. Borrowings under the Credit Facility, at the Company's option, bear interest at a defined base rate or the LIBOR rate plus, in each case, an applicable margin based upon the Company's leverage ratio as defined in the Credit Agreement. Rates would increase upon negative changes in specified Company financial metrics and would decrease to no less than LIBOR plus 1.00% or base rate plus 0% upon reduction in the current total leverage ratio. As of June 29, 2013, the Company had a borrowing rate of LIBOR plus 1.13%. As of June 29, 2013, all outstanding debt under the Credit Facility is at a fixed interest rate as a result of the interest rate swap contract discussed in Note 6, "Derivatives and Fair Value Measurements." There is no floating rate debt outstanding under the Credit Facility as of June 29, 2013. The Company is also required to pay an annual commitment fee on the unused revolver credit commitment based on the Company's leverage ratio; the fee was 0.2% as of June 29, 2013.

In the second quarter of fiscal 2012, the Company incurred approximately $0.9 million in new debt issuance costs in connection with the new Credit Facility, which are being amortized over the five-year term of the Credit Facility.

The Company also has outstanding 5.20% Senior Notes, due on June 15, 2018 (the “Notes”); $175 million principal of the Notes was outstanding as of both June 29, 2013 and September 29, 2012. At June 29, 2013, the Company was in compliance with all covenants under the indenture relating to the Notes.

NOTE 6—DERIVATIVES AND FAIR VALUE MEASUREMENTS

All derivatives are recognized in the accompanying Condensed Consolidated Balance Sheets at their estimated fair value. The Company currently has cash flow hedges related to variable rate debt and foreign currency obligations. The Company also enters into forward exchange contracts from time to time to manage foreign currency exchange rate exposures associated with certain foreign currency denominated receivables and payables. The Company does not enter into derivatives for speculative purposes. Changes in the fair value of the derivatives that qualify as cash flow hedges are recorded in “Accumulated other comprehensive income” in the accompanying Condensed Consolidated Balance Sheets until earnings are affected by the variability of the cash flows. There were no contracts outstanding related to foreign currency denominated receivables and payables at June 29, 2013.

The Company’s Malaysian operations have entered into forward exchange contracts on a rolling basis with a total notional value of $49.5 million as of June 29, 2013. These forward contracts fix the exchange rates on foreign currency cash used to pay a portion of local currency expenses. The total fair value of these forward contracts was a $1.1 millionliability as of June 29, 2013, and a $1.1 million asset as of September 29, 2012.

On June 4, 2013, the Company entered into an interest rate swap contract to replace the three interest rate swap contracts that matured on April 4, 2013, as described below. The new interest rate swap contract is related to the $75.0 million term loan under the Company's Credit Facility. This interest rate swap pays the Company variable interest at the one month LIBOR rate, and the Company pays the counterparty a fixed interest rate. The fixed interest rate for the contract is 0.875%. Based on the terms of the interest rate swap contract and the underlying debt, the interest rate contract was determined to be effective, and thus qualifies as a cash flow hedge. As such, any changes in the fair value of the interest rate swap are recorded in “Accumulated other comprehensive income” on the accompanying Condensed Consolidated Balance Sheets until earnings are affected by the variability of cash flows. The total fair value of the interest rate swap contract was a $0.4 million asset as of June 29, 2013. As of June 29, 2013, the notional amount of the Company’s interest rate swap was $75.0 million.

The Company entered into three interest rate swap contracts related to the term loans under its Prior Credit Facility that had an initial total notional value of $150 million and matured on April 4, 2013, which resulted in a $2.0 million discrete tax benefit in the three months endedJune 29, 2013. The fixed interest rates for each of these contracts were 4.415%, 4.490% and 4.435%, respectively. These interest rate swap contracts were originally entered into to convert $150 million of the variable rate term loan under the Prior Credit Facility into fixed rate debt. Based on the terms of the interest rate swap contracts and the underlying debt, these interest rate contracts were determined to be effective, and thus qualified as a cash flow hedge. As such, any changes in the

8

fair value of these interest rate swaps were recorded in “Accumulated other comprehensive income” on the accompanying Condensed Consolidated Balance Sheets until earnings were affected by the variability of cash flows. The total fair value of these interest rate swap contracts was a $1.7 million liability as of September 29, 2012.

The tables below present information regarding the fair values of derivative instruments (as defined in Note 1, "Basis of Presentation and Accounting Policies") and the effects of derivative instruments on the Company’s Condensed Consolidated Financial Statements:

Fair Values of Derivative Instruments
In thousands of dollars
	Asset Derivatives					Liability Derivatives
		June 29, 2013		September 29, 2012			June 29, 2013		September 29, 2012
Derivatives designated as hedging instruments	Balance Sheet Location	Fair Value		Fair Value		Balance Sheet Location	Fair Value		Fair Value
Interest rate swaps	Prepaid expenses and other	$	414	$	—	Current liabilities – Other	$	—	$	1,715
Forward contracts	Prepaid expenses and other	$	—	$	1,095	Current liabilities – Other	$	1,078	$	—

The Effect of Derivative Instruments on the Condensed Statements of Comprehensive Income
for the Three Months Ended
In thousands of dollars
Derivatives in Cash Flow Hedging Relationships	Amount of Gain or (Loss) Recognized in Other Comprehensive Income (“OCI”) on Derivative (Effective Portion)						Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	June 29, 2013			June 30, 2012				June 29, 2013			June 30, 2012				June 29, 2013		June 30, 2012
Interest rate swaps	$	414		$	23		Interest income (expense)	$	(62	)	$	(868	)	Other income (expense)	$	—	$	—
Forward contracts	$	(872	)	$	(1,631	)	Selling and administrative expenses	$	535		$	(52	)	Other income (expense)	$	—	$	—
Treasury Rate Locks	$	—		$	—		Interest income (expense)	$	80		$	79		Other income (expense)	$	—	$	—
Income Tax (Benefit) Expense	$	—		$	—		Income Tax (Benefit) Expense	$	2,191		$	—		Income Tax (Benefit) Expense	$	—	$	—

The Effect of Derivative Instruments on the Condensed Statements of Comprehensive Income
for the Nine Months Ended
In thousands of dollars
Derivatives in Cash Flow Hedging Relationships	Amount of Gain or (Loss) Recognized in Other Comprehensive Income  (“OCI”) on Derivative (Effective Portion)					Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain or (Loss) Recognized in Income on  Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	June 29, 2013			June 30, 2012			June 29, 2013			June 30, 2012				June 29, 2013		June 30, 2012
Interest rate swaps	$	1,219		$	38	Interest income (expense)	$	(910	)	$	(2,686	)	Other income (expense)	$	—	$	—
Forward contracts	$	(970	)	$	761	Selling and administrative expenses	$	1,207		$	(356	)	Other income (expense)	$	—	$	—
Treasury Rate Locks	$	—		$	—	Interest income (expense)	$	240		$	239		Other income (expense)	$	—	$	—
Income Tax (Benefit) Expense	$	—		$	—	Income Tax (Benefit) Expense	$	2,191		$	—		Income Tax (Benefit) Expense	$	—	$	—

9

During the third quarter of fiscal 2011, when the fixed interest rate for the Company's issuance of $175 million of Notes was determined, all three related treasury rate lock contracts were settled and the Company received proceeds of $2.3 million, which is being amortized over the seven year term of the related debt.

The following table lists the fair values of assets/(liabilities) of the Company’s derivatives as of June 29, 2013, by input level as defined above (in thousands):

Derivatives	Level 1		Level 2			Level 3		Total
Interest rate swaps	$	—	$	414		$	—	$	414
Foreign currency forward contracts	$	—	$	(1,078	)	$	—	$	(1,078	)

The fair value of interest rate swaps and foreign currency forward contracts is determined using a market approach which includes obtaining directly or indirectly observable values from third parties active in the relevant markets. The primary input in the fair value of the interest rate swaps is the relevant LIBOR forward curve. Inputs in the fair value of the foreign currency forward contracts include prevailing forward and spot prices for currency and interest rate forward curves.

NOTE 7—EARNINGS PER SHARE

The following is a reconciliation of the amounts utilized in the computation of basic and diluted earnings per share (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	June 29, 2013		June 30, 2012		June 29, 2013		June 30, 2012
Basic and Diluted Earnings Per Share:
Net income	$	23,204	$	23,533	$	57,795	$	61,361
Basic weighted average common shares outstanding	33,797		34,982		33,744		34,819
Dilutive effect of share-based awards outstanding	566		661		482		682
Diluted weighted average shares outstanding	34,363		35,643		34,226		35,501
Earnings per share:
Basic	$	0.69	$	0.67	$	1.71	$	1.76
Diluted	$	0.68	$	0.66	$	1.69	$	1.73

For both the three and nine months endedJune 29, 2013, stock options and stock-settled stock appreciation rights ("SARs") for approximately 2.0 million shares were not included in the computation of diluted earnings per share because the options’ and stock-settled SARs’ exercise prices were greater than the average market price of the Company's common shares and, therefore, their effect would be anti-dilutive.

For the three and nine months endedJune 30, 2012, stock options and stock-settled SARs for approximately 1.4 million and 1.3 million shares, respectively, were not included in the computation of diluted earnings per share because the options' and stock-settled SARs' exercise prices were greater than the average market price of the Company's common shares and, therefore, their effect would be anti-dilutive.

As a result of the Company's stock repurchase program, there were fewer shares outstanding for the three and nine months endedJune 29, 2013 as compared to the three and nine months endedJune 30, 2012. Refer to Note 14, "Shareholders' Equity" for further information on the Company's stock repurchase program.

NOTE 8—STOCK-BASED COMPENSATION

The Company recognized $3.1 million and $9.0 million of compensation expense associated with stock-based awards for the three and nine months endedJune 29, 2013, respectively, and $3.2 million and $9.6 million for the three and nine months endedJune 30, 2012, respectively.

The Company uses the Black-Scholes valuation model to determine the fair value of stock options and stock-settled SARs. The Company uses the fair value at the date of grant to value restricted stock units ("RSUs") and unrestricted stock awards. The Company recognizes stock-based compensation expense over the stock-based awards’ vesting period.

NOTE 9—INCOME TAXES

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Income tax (benefit) expense for the three and nine months endedJune 29, 2013 was $(0.3) million and $2.8 million, respectively. The effective tax rates for the three and nine months endedJune 29, 2013 were (1.1) percent and 4.6 percent, respectively. The decrease in the effective tax rate for the quarter, compared to the effective tax rate for the current fiscal year-to-date, was due to a $2.0 million discrete tax benefit resulting from the expiration of three interest rate swap contracts during the quarter. The decrease in the effective tax rate for the three and nine months endedJune 29, 2013, as compared to 7.6 percent and 9.1 percent, for the three and nine months endedJune 30, 2012, respectively, was primarily due to an increase in the portion of the Company's income from its APAC segment, which benefits from reduced taxes due to tax holidays and the discrete tax benefit noted above. Also, as demonstrated in recent quarters, the tax rate will vary during the year based on the mix of forecasted earnings by tax jurisdiction.

As of June 29, 2013, there was no material change in the amount of unrecognized tax benefits recorded for uncertain tax positions as compared to fiscal 2012 year end. The Company recognizes accrued interest and penalties related to uncertain tax positions in income tax expense. The amount of interest and penalties recorded for both the three and nine months endedJune 29, 2013 and June 30, 2012 was not material.

It is reasonably possible that a number of uncertain tax positions may be settled within the next 12 months. The Company is currently under examination by taxing authorities in the U.S.; however, the Company is not currently under examination in any of the foreign jurisdictions in which the Company has significant operations.

The Company maintains valuation allowances when it is more likely than not that all or a portion of a deferred tax asset will not be realized. During the three and nine months endedJune 29, 2013, the Company continued to record a full valuation allowance against its net deferred tax assets in the U.S., Germany and Romania and at one of the Company's subsidiaries in the United Kingdom, as it is more likely than not that these assets will not be fully realized based primarily on historical performance. The Company will continue to provide a valuation allowance against its net deferred tax assets in each of the applicable jurisdictions going forward until the need for a valuation allowance is eliminated. The need for a valuation allowance will be eliminated when the Company determines it is more likely than not that the deferred tax assets will be realized.

NOTE 10—BUSINESS SEGMENTS

Reportable segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or group, in assessing performance and allocating resources.

The Company uses an internal management reporting system, which provides important financial data to evaluate performance and allocate the Company’s resources on a regional basis. Net sales for segments are attributed to the region in which the product is manufactured or service is performed. The services provided, manufacturing processes used, class of customers serviced and order fulfillment processes used are similar and generally interchangeable across the segments. A segment’s performance is evaluated based upon its operating income (loss). A segment’s operating income (loss) includes its net sales less cost of sales and selling and administrative expenses, but excludes corporate and other costs, interest expense, other income (loss), and income taxes. Corporate and other costs primarily represent corporate selling and administrative expenses, and restructuring and impairment costs, if any. These costs are not allocated to the segments, as management excludes such costs when assessing the performance of the segments. Inter-segment transactions are generally recorded at amounts that approximate arm’s length transactions. The accounting policies for the regions are the same as for the Company taken as a whole.

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Information about the Company’s three reportable segments for the three and nine months endedJune 29, 2013 and June 30, 2012, respectively, follows (in thousands):

	Three Months Ended						Nine Months Ended
	June 29, 2013			June 30, 2012			June 29, 2013			June 30, 2012
Net sales:
AMER	$	268,154		$	317,565		$	787,035		$	970,124
APAC	297,659			301,368			858,357			797,631
EMEA	30,697			22,019			93,809			69,290
Elimination of inter-segment sales	(24,565		)	(32,133		)	(78,900		)	(125,102		)
	$	571,945		$	608,819		$	1,660,301		$	1,711,943
Operating income (loss):
AMER	$	16,934		$	24,084		$	52,708		$	73,351
APAC	31,523			27,797			83,629			72,591
EMEA	(1,159		)	(854		)	(546		)	(1,454		)
Corporate and other costs	(22,114		)	(23,747		)	(65,935		)	(67,678		)
	$	25,184		$	27,280		$	69,856		$	76,810
Other income (expense):
Interest expense	$	(2,650	)	$	(4,125	)	$	(10,010	)	$	(12,205	)
Interest income	402			446			1,182			1,344
Miscellaneous	8			1,860			(467		)	1,543
Income before income taxes	$	22,944		$	25,461		$	60,561		$	67,492
	June 29, 2013			September 29, 2012
Total assets:
AMER	$	429,542		$	400,643
APAC	827,413			771,781
EMEA	106,467			88,420
Corporate	81,538			147,355
	$	1,444,960		$	1,408,199

NOTE 11—GUARANTEES

The Company offers certain indemnifications under its customer manufacturing agreements. In the normal course of business, the Company may from time to time be obligated to indemnify its customers or its customers’ customers against damages or liabilities arising out of the Company’s negligence, misconduct, breach of contract, or infringement of third party intellectual property rights. Certain agreements have extended broader indemnification, and while most agreements have contractual limits, some do not. However, the Company generally does not provide for such indemnities and seeks indemnification from its customers for damages or liabilities arising out of the Company’s adherence to customers’ specifications or designs or use of materials furnished, or directed to be used, by its customers. The Company does not believe its obligations under such indemnities are material.

In the normal course of business, the Company also provides its customers a limited warranty covering workmanship, and in some cases materials, on products manufactured by the Company. Such warranty generally provides that products will be free from defects in the Company’s workmanship and meet mutually agreed-upon specifications for periods generally ranging from 12 months to 24 months. If a product fails to comply with the Company’s limited warranty, the Company’s obligation is generally limited to correcting, at its expense, any defect by repairing or replacing such defective product. The Company’s warranty generally excludes defects resulting from faulty customer-supplied components, design defects or damage caused by any party or cause other than the Company.

The Company provides for an estimate of costs that may be incurred under its limited warranty at the time product revenue is recognized and establishes additional reserves for specifically identified product issues. These costs primarily include labor and

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materials, as necessary, associated with repair or replacement and are included in the Company’s accompanying Condensed Consolidated Balance Sheets in other current accrued liabilities. The primary factors that affect the Company’s warranty liability include the value and the number of shipped units and historical and anticipated rates of warranty claims. As these factors are impacted by actual experience and future expectations, the Company assesses the adequacy of its recorded warranty liabilities and adjusts the amounts as necessary.

Below is a table summarizing the activity related to the Company’s limited warranty liability for fiscal 2012 and for the nine months endedJune 29, 2013 (in thousands):

Limited warranty liability, as of October 1, 2011	$	5,453
Accruals for warranties issued during the period	649
Settlements (in cash or in kind) during the period	(957		)
Limited warranty liability, as of September 29, 2012	5,145
Accruals for warranties issued during the period	507
Settlements (in cash or in kind) during the period	(249		)
Limited warranty liability, as of June 29, 2013	$	5,403

NOTE 12—LITIGATION

The Company is party to certain lawsuits in the ordinary course of business. Management does not believe that these proceedings, individually or in the aggregate, will have a material adverse effect on the Company’s consolidated financial position, results of operations or cash flows.

NOTE 13—CONTINGENCIES

As of June 29, 2013, the Company had approximately $5.0 million of outstanding accounts receivables and inventory related to a customer with poor financial health that failed to make consistent payments in prior quarters. Subsequent to the end of the quarter, on July 19, 2013, the Company collected all past due accounts receivable balances from this customer. Due to ongoing concerns over the financial health of the customer and the outstanding exposure related to costs associated with inventory and open orders for materials required to manufacture the customer's products, the Company continues to maintain a $0.7 million reserve, the estimated loss it believes is probable, related to this customer.

NOTE 14—SHAREHOLDERS’ EQUITY

On October 23, 2012, the Board of Directors approved a stock repurchase program under which the Company is authorized to repurchase up to $50 million of its common stock. During the three months endedJune 29, 2013, the Company repurchased 0.5 million shares for approximately $14.5 million, at an average price of $27.19 per share. For the nine months endedJune 29, 2013, the Company repurchased 1.4 million shares for approximately $36.0 million, at an average price of $25.55 per share. These shares were recorded as treasury stock. In addition, as of June 29, 2013, the Company had a commitment of approximately $0.6 million related to the purchase of 21,749 shares, which were purchased before June 29, 2013 but settled after the end of the fiscal third quarter.

NOTE 15—NEW ACCOUNTING PRONOUNCEMENTS

In February 2013, the Financial Accounting Standards Board (“FASB”) issued a standard that requires entities to present the changes in the components of accumulated other comprehensive income. Entities are required to present separately the amount of the change that is due to reclassifications, and the amount that is due to current period other comprehensive income. These changes may be shown before or net of tax, and displayed either on the face of the financial statements or in the footnotes. Public entities are required to comply with the standard for annual and interim periods starting with the first interim period in the fiscal period beginning after December 15, 2012. Early adoption is permitted. The Company adopted this guidance as of the second fiscal quarter of 2013 with no impact to the Company's consolidated financial position, results of operations or cash flows, as the guidance only related to the presentation of the Company's financial statement disclosures.

In January 2013, the FASB issued a clarification of its previous amendment to disclosures about offsetting assets and liabilities. The clarification stated which instruments and transactions are subject to the original amendment requiring an entity to disclose information about offsetting and related arrangements to enable users of its financial statements to understand the effects of those arrangements on its financial position. Public entities are required to apply the amendment for annual reporting periods

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beginning on or after January 1, 2013, and interim periods within those annual periods. An entity should provide the disclosures required by those amendments retrospectively for all comparative periods presented. This guidance will be effective for the Company's 2014 fiscal year and is not expected to have an impact on the Company's consolidated financial position, results of operations or cash flows, as the guidance only relates to the presentation of the Company's financial statement disclosures.

In June 2011, the FASB issued an amendment to comprehensive income guidance, which eliminates the option to present other comprehensive income and its components in the statement of shareholders’ equity. The Company can elect to report components of comprehensive income in either (1) a continuous statement of comprehensive income or (2) two separate but consecutive statements. This guidance is effective for financial statements issued for fiscal years, and interim periods within those years, beginning after December 15, 2011. The Company adopted this guidance as of the first fiscal quarter of 2013 with no impact to the Company's consolidated financial position, results of operations or cash flows, as the guidance only related to the presentation of the Company's financial statement disclosures.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

“SAFE HARBOR” CAUTIONARY STATEMENT:

The statements contained in this release which are guidance or which are not historical facts (such as statements in the future tense and statements including “believe,” “expect,” “intend,” “plan,” “anticipate,” “goal,” “target” and similar terms and concepts), including all discussions of periods which are not yet completed, are forward-looking statements that involve risks and uncertainties. These risks and uncertainties include, but are not limited to: the risk of customer delays, changes, cancellations or forecast inaccuracies in both ongoing and new programs; the poor visibility of future orders, particularly in view of current economic conditions; the effects on Plexus of Juniper Network, Inc.'s disengagement; the adequacy of restructuring and similar charges as compared to actual expenses; the economic performance of the industries, sectors and customers we serve; the effects of the volume of revenue from certain sectors or programs on our margins in particular periods; our ability to secure new customers, maintain our current customer base and deliver product on a timely basis; the particular risks relative to new or recent customers or programs, which risks include customer and other delays, start-up costs, potential inability to execute, the establishment of appropriate terms of agreements, and the lack of a track record of order volume and timing; the risks of concentration of work for certain customers; our ability to manage successfully a complex business model characterized by high customer and product mix, low volumes and demanding quality, regulatory, and other requirements; the risk that new program wins and/or customer demand may not result in the expected revenue or profitability; the fact that customer orders may not lead to long-term relationships; the effects of shortages and delays in obtaining components as a result of economic cycles or natural disasters; the risks associated with excess and obsolete inventory, including the risk that inventory purchased on behalf of our customers may not be consumed or otherwise paid for by the customer, resulting in an inventory write-off; the weakness of areas of the global economy; the effect of changes in the pricing and margins of products; the effect of start-up costs of new programs and facilities, such as our new facility in Romania and our announced plans to replace facilities in the United States, and other recent, planned and potential future expansions or replacements; increasing regulatory and compliance requirements; possible unexpected costs and operating disruption in transitioning programs; raw materials and component cost fluctuations; the potential effect of fluctuations in the value of the currencies in which we transact business; the potential effects of regional results on our taxes and ability to use deferred tax assets; the potential effect of world or local events or other events outside our control (such as drug cartel-related violence in Mexico, instability in the Korean peninsula, changes in oil prices, terrorism and weather events); the impact of increased competition; and other risks detailed in the Company's Securities and Exchange Commission filings (particularly in Part I, Item 1A of our annual report on Form 10-K for the fiscal year ended September 29, 2012).

OVERVIEW

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 ("AMER"), Europe, Middle East and Africa ("EMEA") and Asia-Pacific ("APAC") regions. Customer service is provided to over 140 branded product companies in the Networking/Communications, Healthcare/Life Sciences, 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.

We provide most of our contract manufacturing services on a turnkey basis, which means that we procure some or all of the materials required for product assembly. We provide some services on a consignment basis, which means that the customer supplies the necessary materials, and we provide the labor and other services required for product assembly. Turnkey services require material procurement and warehousing, in addition to manufacturing, and involve greater resource investments than consignment services. Other than certain test equipment and software used for internal operations, we do not design or manufacture our own proprietary products.

On November 5, 2012, Juniper Networks, Inc. ("Juniper"), the Company's largest customer, notified the Company of its intent to disengage from Plexus. As a consequence, later in our fiscal first quarter, the Company and Juniper reached an understanding regarding the timing and other aspects of Juniper's disengagement. Under the terms of that agreement,

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production for Juniper concluded at the end of our third fiscal quarter of 2013. However, sales of certain inventory will continue into our fourth fiscal quarter of 2013. We do not expect to incur any material adjustments related to this inventory. We incurred approximately $0.6 million of severance and asset impairment costs in connection with the disengagement in the third quarter of fiscal 2013; no further related costs are expected. Sales to Juniper were 15% of our net sales in the third quarter of fiscal 2013 as compared to 16% in the same period of fiscal 2012, and were from the Company's AMER and APAC segments. We expect no further revenue from Juniper in fiscal 2014.

Our new Neenah, Wisconsin manufacturing facility, which will replace one owned and two leased facilities, is currently on schedule and we anticipate its completion late in the fiscal fourth quarter of 2013. Consolidation of the three other facilities into our new facility is expected to result in approximately $4.0 to $5.0 million of restructuring charges in the first half of fiscal 2014.

The following information should be read in conjunction with our Condensed Consolidated Financial Statements included herein, the “Risk Factors” section in Part I, Item 1A of our annual report on Form 10-K for the fiscal year ended September 29, 2012 and our “Safe Harbor” Cautionary Statement included above.

RESULTS OF OPERATIONS

Consolidated Performance Summary

The following table presents selected consolidated financial data (dollars in millions, except per share data):

	Three Months Ended						Nine Months Ended
	June 29, 2013			June 30, 2012			June 29, 2013			June 30, 2012
Net sales	$	571.9		$	608.8		$	1,660.3		$	1,711.9
Gross profit	55.5			57.4			158.7			163.7
Gross margin	9.7		%	9.4		%	9.6		%	9.6		%
Operating income	25.2			27.3			69.9			76.8
Operating margin	4.4		%	4.5		%	4.2		%	4.5		%
Net income	23.2			23.5			57.8			61.4
Earnings per share (diluted)	$	0.68		$	0.66		$	1.69		$	1.73
Return on invested capital							13.2		%	15.0		%

Net sales. For the three months endedJune 29, 2013, our net sales decreased by 6.1 percent compared to the three months endedJune 30, 2012 primarily as a result of decreased end-market demand for one of our larger customers in the industrial/commercial sector. This accounted for $36.7 million of the decreased net sales as compared to the prior year period. In addition, as a result of its disengagement, net sales to Juniper, the Company's largest customer, decreased by $11.4 million as compared to the prior year period. These decreases were partially offset by increased net sales to various other customers in all other sectors.

For the nine months endedJune 29, 2013, our net sales decreased by 3.0 percent compared to the nine months endedJune 30, 2012 primarily as a result of decreased end-market demand for one of our larger customers in the industrial/commercial sector and decreased net sales to Juniper, which together represented a decrease of approximately $155.7 million. These decreases were partially offset by incremental net sales of $14.9 million from the Kontron arrangement, as well as increased net sales to various other customers in each sector, four of which amounted to approximately $100 million.

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Our net sales by market sector for the indicated periods were as follows (in millions):

	Three Months Ended				Nine Months Ended
Market Sector	June 29, 2013		June 30, 2012		June 29, 2013		June 30, 2012
Networking/Communications	$	218.1	$	236.8	$	629.4	$	676.3
Industrial/Commercial	137.7		187.1		408.4		511.4
Healthcare/Life Sciences	142.1		127.3		404.2		356.2
Defense/Security/Aerospace	74.0		57.6		218.3		168.0
	$	571.9	$	608.8	$	1,660.3	$	1,711.9

Networking/Communications. Net sales for the networking/communications sector decreased $18.7 million for the three months endedJune 29, 2013 as compared to the three months endedJune 30, 2012. The change was primarily a result of decreased net sales to Juniper of $11.4 million, related to its disengagement, as well as fluctuations in net sales to customers in this sector.

Net sales for the networking/communications sector decreased $46.9 million for the nine months endedJune 29, 2013 as compared to the nine months endedJune 30, 2012. The decrease in the sector was primarily a result of decreased net sales to Juniper related to its disengagement.

Industrial/Commercial. Net sales for the industrial/commercial sector decreased $49.4 million for the three months endedJune 29, 2013 compared to the three months endedJune 30, 2012. The decrease was primarily a result of decreased end-market demand for one of our larger customers in the industrial/commercial sector, which accounted for $36.7 million of the decreased net sales as compared to the prior year period, as well as slightly weaker demand from various other customers in this sector.

Net sales for the industrial/commercial sector decreased $103.0 million for the nine months endedJune 29, 2013 compared to the nine months endedJune 30, 2012. This decrease was a result of the same factors noted above, partially offset by incremental net sales of $14.9 million from the Kontron arrangement.

Healthcare/Life Sciences. Net sales for the healthcare/life sciences sector increased $14.8 million for the three months endedJune 29, 2013 compared to the three months endedJune 30, 2012. The increase was primarily due to new program ramps.

For the same reason, net sales for the healthcare/life sciences sector increased $48.0 million for the nine months endedJune 29, 2013 compared to the nine months endedJune 30, 2012.

Defense/Security/Aerospace. Net sales for the defense/security/aerospace sector increased $16.4 million for the three months endedJune 29, 2013 compared to the three months endedJune 30, 2012. The increase was the result of increased net sales to various customers in this sector, the result of new program ramps as well as increased end-market demand for the products we produce for some of our Aerospace customers.

Growth in new program ramps was also the primary contributor to a $50.3 million increase in net sales for the defense/security/aerospace sector for the nine months endedJune 29, 2013 compared to the nine months endedJune 30, 2012.

Gross profit. For the three months endedJune 29, 2013, gross profit decreased $1.9 million compared to the three months endedJune 30, 2012 primarily due to decreased net sales partially offset by favorable changes in customer mix. Fixed expenses were comparable between the periods. The favorable changes in customer mix resulted in the increase in gross margin to 9.7 percent for the three months endedJune 29, 2013 from 9.4 percent for the three months endedJune 30, 2012.

For the nine months endedJune 29, 2013 gross profit decreased $5.0 million compared to the nine months endedJune 30, 2012 primarily due to decreased net sales, increased fixed expenses related to site expansions in Penang, Malaysia, Xiamen, China and Oradea, Romania and unfavorable changes in customer mix. The decrease was partially offset by the sale of certain inventory that had previously been written down. Gross margin remained consistent at 9.6 percent.

Operating income. For the three months endedJune 29, 2013, operating income decreased $2.1 million compared to the three months endedJune 30, 2012. The operating income decline primarily reflected the $1.9 million decrease in gross profit described above, as selling and administrative expenses (“S&A”) were flat as compared to the prior year period. As a result, operating margin was 4.4 percent for the three months endedJune 29, 2013 compared to 4.5 percent for the three months endedJune 30, 2012.

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For the nine months endedJune 29, 2013 operating income decreased $6.9 million compared to the nine months endedJune 30, 2012. The operating income decrease reflected the $5.0 million decrease in gross profit described above as well as increased S&A expenses of about $1.9 million. The S&A expenses increased due to approximately $0.8 million of additional amortization expense in the current period related to the Kontron arrangement; in addition, the prior year period included $2.4 million of bad debt recovery, which did not recur in the current period. These increases to S&A as compared to the prior period were offset by a $1.5 million decrease in incentive compensation expense. As a result of the factors discussed above, for the nine months endedJune 29, 2013 compared to the prior year period, operating margin declined to 4.2 percent compared to 4.5 percent.

Other income (expense). Other income (expense) increased to $2.2 million of expense for the three months endedJune 29, 2013, as compared to $1.8 million of expense for the three months endedJune 30, 2012. The increase in other expense was the result of an accrual of $0.8 million for property-related expenses related to the termination of an agreement for additional land in Hangzhou, China; partially offset by a decrease in interest expense related to our term loan. In addition, the prior year period included a $0.8 million gain on the sale of previously owned assets as well as a $0.7 million currency exchange gain as compared to a $0.2 million currency exchange loss in the current year period. Other income (expense) was $9.3 million of expense for both the nine months endedJune 29, 2013 and the nine months endedJune 30, 2012.

Income taxes. Effective annual income tax rates for the indicated periods were as follows:

	Three Months Ended		Nine Months Ended
	June 29, 2013	June 30, 2012	June 29, 2013	June 30, 2012
Effective annual tax rate	(1)%	8%	5%	9%

Income tax (benefit) expense was $(0.3) million for the three months endedJune 29, 2013, primarily due to a discrete tax benefit, and income tax expense was $2.8 million for the nine months endedJune 29, 2013 as compared to expense of $1.9 million and $6.1 million for the three and nine months endedJune 30, 2012, respectively. Our effective tax rate varies from the U.S. statutory rate of 35 percent primarily as a result of the amount of earnings from different U.S. and foreign jurisdictions, and tax holidays granted to our subsidiaries in China and Malaysia. The effective tax rate for both the three and nine months endedJune 29, 2013 is lower than the effective rate for the three and nine months endedJune 30, 2012 primarily as a result of an increased proportion of our income from the APAC segment, which benefits from reduced taxes due to tax holidays, and a $2.0 million discrete tax benefit from the expiration of three interest rate swap contracts in the three months endedJune 29, 2013. Our effective tax rate will fluctuate in the future depending on the geographic distribution of our worldwide earnings.

The estimated annual effective tax rate for all of fiscal 2013 is expected to be between 5 percent and 7 percent.

Net income. Net income for the three months endedJune 29, 2013 decreased by $0.3 million, or 1.3 percent, to $23.2 million from $23.5 million for the three months endedJune 30, 2012. Net income for the nine months endedJune 29, 2013 decreased by $3.6 million, or 5.9 percent, to $57.8 million from $61.4 million for the nine months endedJune 30, 2012 as a result of decreased gross profit and increased S&A expenses partially offset by decreased income tax expense resulting from the discrete tax item noted above.

Diluted earnings per share. Diluted earnings per share increased to $0.68 for the three months endedJune 29, 2013 as compared to $0.66 for the three months endedJune 30, 2012. The increase in diluted earnings per share for the period was primarily the result of the slight decrease in net income noted above being more than offset by a decrease in the number of shares outstanding as a result of our stock repurchase program. Diluted earnings per share decreased to $1.69 for the nine months endedJune 29, 2013 as compared to $1.73 for the nine months endedJune 30, 2012. The decrease in diluted earnings per share for the nine month period was primarily due to the items noted above.

Return on Invested Capital (“ROIC”). We use a 5-10-5 financial model which is aligned with our business strategy, and includes a ROIC goal of 500 basis points over our weighted average cost of capital (“WACC”), a 10 percent gross margin target and a 5 percent operating margin target. Our primary focus is our ROIC goal, which is designed to create shareholder value and generate enough cash to self-fund our targeted organic revenue growth rate of 15 percent.

We review our internal calculation of WACC annually, and our estimated WACC is 12 percent for fiscal 2013. By exercising discipline to generate ROIC in excess of our WACC, our goal is to create value for our shareholders. ROIC was 13.2 percent and 15.0 percent for the nine months endedJune 29, 2013 and June 30, 2012, respectively. This decrease was due to lower annualized operating income and higher average invested capital (as defined below).

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We define ROIC as tax-effected annualized operating income divided by average invested capital over a rolling three-quarter period for the second quarter. Invested capital is defined as equity plus debt, less cash and cash equivalents. Other companies may not define or calculate ROIC in the same way. ROIC is a non-GAAP financial measure which should be considered in addition to, not as a substitute for, measures of our financial performance prepared in accordance with United States generally accepted accounting principles (“GAAP”).

Non-GAAP financial measures, including ROIC, are used for internal management assessments because such measures provide additional insight into ongoing financial performance. In particular, we provide ROIC because we believe it offers insight into the metrics that are driving management decisions. We view ROIC as an important measure in evaluating the efficiency and effectiveness of our long-term capital requirements. We also use ROIC as a performance criteria in determining certain elements of compensation.

For a reconciliation of ROIC to our financial statements that were prepared using GAAP, see exhibit 99.1 to this quarterly report on Form 10-Q, which exhibit is incorporated herein by reference.

REPORTABLE SEGMENTS

A further discussion of financial performance by reportable segment is presented below (dollars in millions):

	Three Months Ended						Nine Months Ended
	June 29, 2013			June 30, 2012			June 29, 2013			June 30, 2012
Net sales:
AMER	$	268.1		$	317.5		$	787.0		$	970.1
APAC	297.7			301.4			858.4			797.6
EMEA	30.7			22.0			93.8			69.3
Elimination of inter-segment sales	(24.6		)	(32.1		)	(78.9		)	(125.1		)
	$	571.9		$	608.8		$	1,660.3		$	1,711.9
Operating income (loss):
AMER	$	16.9		$	24.1		$	52.7		$	73.4
APAC	31.5			27.8			83.6			72.6
EMEA	(1.1		)	(0.9		)	(0.5		)	(1.5		)
Corporate and other costs	(22.1		)	(23.7		)	(65.9		)	(67.7		)
	$	25.2		$	27.3		$	69.9		$	76.8

Americas (AMER): Net sales for the three months endedJune 29, 2013 decreased $49.4 million, or 15.6 percent, as compared to the prior year period due primarily to lower end-market demand from a significant industrial/commercial sector customer as well as a drop in demand from Juniper. The drop in demand from Juniper was related to the ongoing disengagement as well as reduced demand for Juniper products manufactured in this segment, which reduces our sales to the customer. Operating income for the three months endedJune 29, 2013 decreased $7.2 million, or 29.9 percent, as compared to the prior year period, due primarily to the decrease in net sales and unfavorable changes in customer mix.

Net sales for the nine months endedJune 29, 2013 decreased $183.1 million, or 18.9 percent, as compared to the prior year period, due primarily to lower end-market demand from a significant industrial/commercial sector customer as well as decreased demand from Juniper. Additionally, we experienced softer demand from other customers in all of our sectors. Operating income for the nine months endedJune 29, 2013 decreased $20.7 million, or 28.2 percent, as compared to the prior year period, due primarily to the decrease in net sales.

Asia Pacific (APAC): Net sales for the three months endedJune 29, 2013 decreased $3.7 million, or 1.2 percent, as compared to the prior year period. The decrease in net sales as compared to the prior period was primarily experienced in the networking/communications sector as a result of weakened demand. Operating income for the three months endedJune 29, 2013 increased $3.7 million, or 13.3 percent, as compared to the prior year period due primarily to favorable changes in customer mix.

Net sales for the nine months endedJune 29, 2013 increased $60.8 million, or 7.6 percent, primarily as a result of new program wins with an existing customer in the defense/security/aerospace sector, $14.9 million of incremental revenue from the Kontron arrangement and increased demand from a customer in our healthcare/life sciences sector. These increases were partially offset

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by soft end-market demand in our networking/communications sector. Operating income for the nine months endedJune 29, 2013 increased $11.0 million, or 15.2 percent, as compared to the prior year period primarily due to increased net sales.

Europe, Middle East, Africa (EMEA): Net sales for the three months endedJune 29, 2013 increased $8.7 million, or 39.5 percent, as compared to the prior year period due primarily to increased demand from a customer in the defense/security/aerospace sector as well as increased sales from the ramp of new customers in the healthcare/life sciences and defense/security/aerospace sectors. These increases were partially offset by soft end-market demand in the industrial/commercial sector. Operating loss for the three months endedJune 29, 2013 increased $0.2 million, as compared to the prior year period, primarily due to increased fixed manufacturing expenses at our new Romanian facility.

Net sales for the nine months endedJune 29, 2013 increased $24.5 million, or 35.4 percent, due primarily to increased demand from a customer in the defense/security/aerospace sector, a customer in the healthcare/life sciences sector and a new customer in the networking/communications sector. These increases were partially offset by soft end-market demand in the industrial/commercial sector. Operating loss for the nine months endedJune 29, 2013 decreased to $0.5 million as compared to $1.5 million in the prior year period. The reduction in operating loss was due primarily to increased utilization of both our former Romanian manufacturing facility and our German engineering facility.

LIQUIDITY AND CAPITAL RESOURCES

Cash and cash equivalents were $285.6 million as of June 29, 2013 compared to $297.6 million as of September 29, 2012. The decrease in the balance of our cash and cash equivalents was due primarily to purchases of common stock as part of our stock repurchase program as well as increased capital expenditures for footprint expansions, partially offset by cash flows generated from operations.

As of June 29, 2013, approximately 90% of our cash balance was held outside of the U.S. by our foreign subsidiaries. Certain foreign countries impose taxes and overall penalties on transfers of cash; however, our intent is to permanently reinvest funds held in these countries. If this cash were remitted to the U.S., additional tax obligations may result that would reduce the amount of cash ultimately available to us in the U.S. Currently, we believe that cash held in the U.S., together with cash available under U.S. credit facilities and cash from foreign subsidiaries that could be remitted to the U.S. without tax consequences, will be sufficient to meet our U.S. liquidity needs for the next twelve months and for the foreseeable future.

Cash Flows. The table below shows a summary of cash flows for the periods presented (dollars in millions):

	Nine Months Ended
	June 29, 2013			June 30, 2012
Cash provided by operating activities	$	116.9		$	116.8
Cash used in investing activities	(83.7		)	(74.5		)
Cash used in financing activities	$	(45.6	)	$	(6.4	)

Operating Activities. Cash flows provided by operating activities were $116.9 million for the nine months endedJune 29, 2013, as compared to cash flows provided by operating activities of $116.8 million for the nine months endedJune 30, 2012. Cash flows provided by operating activities increased slightly due to improvements in working capital offset by lower net income.

The following table shows a summary of cash cycle days for the periods indicated (in days):

	Three Months Ended
	June 29, 2013		June 30, 2012
Days in accounts receivable	54		47
Days in inventory	78		81
Days in accounts payable	(54	)	(59	)
Days in cash deposits	(19	)	(6	)
Annualized cash cycle	59		63

We calculate days in accounts receivable as accounts receivable for the respective quarter divided by annualized sales for the respective quarter by day. We calculate days in inventory, accounts payable, and cash deposits as each balance sheet line item for the respective quarter divided by annualized cost of sales for the respective quarter by day.

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Days in accounts receivable for the three months endedJune 29, 2013 increased by seven days compared to the three months endedJune 30, 2012, primarily due to a change in payment terms with Juniper related to its disengagement.

Days in inventory for the three months endedJune 29, 2013 decreased by three days compared to the three months endedJune 30, 2012, primarily due to lower inventory for Juniper due to its disengagement.

Days in accounts payable for the three months endedJune 29, 2013 decreased by five days compared to the three months endedJune 30, 2012, primarily due to timing of materials purchases.

Days in cash deposits for the three months endedJune 29, 2013 increased by 13 days compared to the three months endedJune 30, 2012 primarily as a result of a $60.0 million deposit balance from Juniper, in relation to its disengagement, as of June 29, 2013. The Company will return any unused deposit balance to the customer over the fourth quarter of fiscal 2013 and first quarter of fiscal 2014.

We calculate annualized cash cycle as the sum of days in accounts receivable and days in inventory, less days in accounts payable and days in cash deposits. For the three months endedJune 29, 2013 annualized cash cycle days improved by four days compared to the three months endedJune 30, 2012 due to the factors noted above.

Free Cash Flow. Free cash flow (“FCF”), which we define as cash flow provided by (used in) operations less capital expenditures, decreased for the nine months endedJune 29, 2013, to $32.6 million, as compared to $71.7 million for the nine months endedJune 30, 2012. Cash to fund capital expenditures for footprint expansion in Neenah, Wisconsin and Oradea, Romania was the primary use of cash.

Non-GAAP financial measures, including FCF, are used for internal management assessments because such measures provide additional insight into ongoing financial performance. In particular, we provide FCF because we believe it offers insight into the metrics that are driving management decisions. We view FCF as an important financial metric as it demonstrates our ability to generate cash and allows us to pursue opportunities that enhance shareholder value. FCF is a non-GAAP financial measure which should be considered in addition to, not as a substitute for, measures of our financial performance prepared in accordance with U.S. GAAP.

For a reconciliation of FCF to our financial statements that were prepared using GAAP, see below (in millions):

	Nine Months Ended
	June 29, 2013			June 30, 2012
Cash provided by operating activities	$	116.9		$	116.8
Capital expenditures	(84.3		)	(45.1		)
Free cash flow	$	32.6		$	71.7

Investing Activities. Cash flows used in investing activities totaled $83.7 million for the nine months endedJune 29, 2013 as compared to cash flows used in investing activities of $74.5 million for the nine months endedJune 30, 2012. Cash flows used in investing activities increased primarily due to the additional investments in footprint expansions noted above partially offset by the prior period including the Kontron arrangement.

We utilized available cash and operating cash flows as the sources for funding our operating requirements. We currently estimate capital expenditures for fiscal 2013 to be approximately $100 million of which $84.3 million of expenditures were made through the third quarter of fiscal 2013. A significant portion of the remaining fiscal 2013 capital expenditures is anticipated to be used for the completion of our previously announced manufacturing facility in Neenah, Wisconsin to replace leased and owned buildings at that location. We believe the estimated capital expenditures will continue to be funded from operations, and may be supplemented by short-term borrowings, if required.

Financing Activities.Cash flows used in financing activities totaled $45.6 million for the nine months endedJune 29, 2013, as compared to cash flows used in financing activities of $6.4 million for the nine months endedJune 30, 2012. Cash flows used in financing activities for the nine months endedJune 29, 2013 were comprised primarily of $36.0 million of purchases of common stock as part of our stock repurchase program as well as payments on debt and capital leases. Cash flows used in financing activities for the nine months endedJune 30, 2012 were comprised primarily of payments on debt, partially offset by debt proceeds and proceeds from the exercise of stock options.

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On October 23, 2012, the Board of Directors approved a stock repurchase program under which the Company is authorized to repurchase up to $50 million of its common stock. As of June 29, 2013, the Company had repurchased 1,410,626 shares for approximately $36.0 million, at an average price of $25.55 per share. These shares were recorded as treasury stock. In addition, as of June 29, 2013, the Company had a commitment of approximately $0.6 million related to the purchase of 21,749 shares, which were purchased before June 29, 2013 but settled after the end of the fiscal third quarter. It is anticipated that this program will continue to be funded with existing cash and is expected to be executed on a relatively consistent basis during the remainder of fiscal 2013.

On May 15, 2012, the Company entered into a five-year, $250 million senior unsecured credit facility that terminates on May 15, 2017 (the “Credit Facility”). The Credit Facility includes a $160 million revolving credit facility and a $90 million term loan. The revolving credit facility potentially may be increased by $100 million (the "increase option") to $260 million generally by mutual agreement of the Company, the lenders, the letter of credit issuers and the administrative agent named in the related credit agreement (the "Credit Agreement"), subject to certain customary conditions. Quarterly principal repayments of the Credit Facility term loan of $3.75 million per quarter ended on March 28, 2013. The final $75 million payment is due on May 15, 2017.

The financial covenants (as defined under the Credit Facility) require that the Company maintain, as of each fiscal quarter end, a maximum total leverage ratio and a minimum interest coverage ratio. As of June 29, 2013, the Company was in compliance with all covenants of the Credit Facility. Borrowings under the Credit Facility, at the Company's option, bear interest at a defined base rate or the LIBOR rate plus, in each case, an applicable margin based upon the Company's leverage ratio as defined in the Credit Agreement. Rates would increase upon negative changes in specified Company financial metrics and would decrease upon reduction in the current total leverage ratio, to no less than LIBOR plus 1.00% or the base rate plus 0%. We are also required to pay an annual commitment fee on the unused revolver credit commitment based on our leverage ratio; the fee was 0.2% as of June 29, 2013. As of April 4, 2013, the original interest rate swaps associated with our term loan expired. On June 4, 2013, the Company entered into a new interest rate swap associated with the term loan which extends through May 5, 2017.

During the third quarter of fiscal 2011, we issued $175 million in principal amount of 5.20% Senior Notes, due June 15, 2018 (the “Notes”), pursuant to a Note Purchase Agreement (the “Note Purchase Agreement”). As of June 29, 2013, we had Notes outstanding of $175.0 million.

The Note Purchase Agreement contains certain financial covenants, which include a maximum total leverage ratio, a minimum interest coverage ratio and a minimum net worth test, all as defined in the agreements. As of June 29, 2013, we were in compliance with all such covenants.

The Credit Facility and Note Purchase Agreement allow for the future payment of cash dividends or the future repurchases of shares provided that no event of default (including any failure to comply with a financial covenant) exists at the time of, or would be caused by, the dividend payment or the share repurchases. We have not paid cash dividends in the past and do not currently anticipate paying them in the future. However, we evaluate from time to time potential uses of excess cash, which in the future may include share repurchases, a special dividend or recurring dividends.

Based on current expectations, we believe that our projected cash flows from operations, available cash and cash equivalents, potential borrowings under the Credit Facility, and our leasing capabilities should be sufficient to meet our working capital and fixed capital requirements for the next twelve months and for the foreseeable future. If our future financing needs increase, we may need to arrange additional debt or equity financing. Accordingly, we evaluate and consider from time to time various financing alternatives to supplement our financial resources. However, particularly due to the current uncertainty of the credit and financial markets, we cannot be assured that we will be able to make any such arrangements on acceptable terms.

CONTRACTUAL OBLIGATIONS, COMMITMENTS AND OFF-BALANCE SHEET OBLIGATIONS

Our disclosures regarding contractual obligations and commercial commitments are located in various parts of our regulatory filings. Information in the following table provides a summary of our contractual obligations and commercial commitments as of June 29, 2013 (dollars in millions):

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	Payments due by fiscal year
Contractual Obligations	Total		Remaining 2013		2014-2015		2016-2017		2018 and thereafter
Long-Term Debt Obligations (1,2)	$	300.6	$	3.1	$	21.1	$	95.2	$	181.2
Capital Lease Obligations	13.6		1.0		8.9		3.7		—
Operating Lease Obligations	32.3		3.2		18.6		6.7		3.8
Purchase Obligations (3)	311.2		297.7		13.2		0.2		0.1
Other Long-Term Liabilities on the Balance Sheet (4)	9.1		0.2		2.0		1.1		5.8
Other Long-Term Liabilities not on the Balance Sheet (5)	21.0		15.7		5.3		—		—
Total Contractual Cash Obligations	$	687.8	$	320.9	$	69.1	$	106.9	$	190.9

1) Includes amounts outstanding under the Credit Facility. As of June 29, 2013, the outstanding balance was $75.0 million. The amounts listed above include interest; see Note 5 in Notes to Condensed Consolidated Financial Statements for further information.

2) Includes $175 million in principal amount of Notes issued in fiscal 2011. The amounts listed above include interest; see Note 5 in Notes to Condensed Consolidated Financial Statements for further information.

3) As of June 29, 2013, purchase obligations consist of purchases of inventory and equipment in the ordinary course of business.

4) As of June 29, 2013, other long-term obligations on the balance sheet included deferred compensation obligations to certain of our former and current executive officers, as well as other key employees, and an asset retirement obligation. We have excluded from the above table the impact of approximately $7.4 million, as of June 29, 2013, related to unrecognized income tax benefits. The Company cannot make reliable estimates of the future cash flows by period related to this obligation.

5) As of June 29, 2013, other long-term obligations not on the balance sheet consisted of a commitment for salary continuation in the event employment of one executive officer of the Company is terminated without cause as well as commitments to complete new manufacturing facilities in Neenah, Wisconsin and Oradea, Romania.

DISCLOSURE ABOUT CRITICAL ACCOUNTING POLICIES

Our critical accounting policies are disclosed in our 2012 annual report on Form 10-K. During the third quarter of fiscal 2013, there were no material changes to these policies.

NEW ACCOUNTING PRONOUNCEMENTS

See Note 15 in Notes to Condensed Consolidated Financial Statements for further information regarding new accounting pronouncements.

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ITEM 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to market risk from changes in foreign exchange and interest rates. We selectively use financial instruments to reduce such risks.

Foreign Currency Risk

We do not use derivative financial instruments for speculative purposes. Our policy is to selectively hedge our foreign currency denominated transactions in a manner that partially offsets the effects of changes in foreign currency exchange rates. We typically use foreign currency contracts to hedge only those currency exposures associated with certain assets and liabilities denominated in non-functional currencies. Corresponding gains and losses on the underlying transaction generally offset the gains and losses on these foreign currency hedges. Our international operations create potential foreign exchange risk. Our percentages of transactions denominated in currencies other than the U.S. dollar for the indicated periods were as follows:

	Three Months Ended				Nine Months Ended
	June 29, 2013		June 30, 2012		June 29, 2013		June 30, 2012
Net sales	7	%	5	%	7	%	5	%
Total costs	12	%	14	%	13	%	14	%

The Company has evaluated the potential foreign currency exchange rate risk on transactions denominated in currencies other than the U.S. Dollar for the periods presented above. Based on the Company’s overall currency exposure, as of June 29, 2013 a 10 percent change in the value of the U.S. Dollar relative to our other transactional currencies would not have a material effect on the Company’s financial position, results of operations, or cash flows.

Interest Rate Risk

We have financial instruments, including cash equivalents, which are sensitive to changes in interest rates. We consider the use of interest rate swaps based on existing market conditions and have entered into interest rate swaps for our term loans. For more information, refer to Note 6, "Derivatives and Fair Value Measurements," in Notes to Condensed Consolidated Financial Statements. Interest rate swap agreements are subject to the further risk that the counterparties to these agreements may fail to comply with their obligations thereunder.

The primary objective of our investment activities is to preserve principal, while maximizing yields without significantly increasing market risk. To achieve this, we maintain our portfolio of cash equivalents in a variety of highly rated securities, money market funds and certificates of deposit, and limit the amount of principal exposure to any one issuer.

As of June 29, 2013, our only material interest rate risk is associated with our term loan under our Credit Facility. Through the use of interest rate swaps, as described above, we fixed the basis on which we pay interest, and the borrowings under the Note Purchase Agreement are based on a fixed interest rate, thus eliminating much of our interest rate risk.

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ITEM 4.    CONTROLS AND PROCEDURES

Disclosure Controls and Procedures: The Company maintains disclosure controls and procedures designed to ensure that the information the Company must disclose in its filings with the Securities and Exchange Commission (“SEC”) is recorded, processed, summarized and reported on a timely basis. The Company’s principal executive officer and principal financial officer have reviewed and evaluated, with the participation of the Company’s management, the Company’s disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) as of the end of the period covered by this report (the “Evaluation Date”). Based on such evaluation, the chief executive officer and chief financial officer have concluded that, as of the Evaluation Date, the Company’s disclosure controls and procedures are effective (a) in recording, processing, summarizing and reporting, on a timely basis, information required to be disclosed by the Company in the reports the Company files or submits under the Exchange Act, and (b) in assuring that information is accumulated and communicated to the Company’s management, including the chief executive officer and chief financial officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting: During the second quarter of fiscal 2013, there have been no changes to the Company’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

Limitations on the Effectiveness of Controls: Our management, including our chief executive officer and chief financial officer, does not expect that our disclosure controls and internal controls will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of simple errors or mistakes. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the control. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, a control may become inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

Notwithstanding the foregoing limitations on the effectiveness of controls, we have nonetheless reached the conclusion that the Company’s disclosure controls and procedures are effective at the reasonable assurance level.

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PART II. OTHER INFORMATION

ITEM 1A.    Risk Factors

In addition to the risks and uncertainties discussed herein, particularly those discussed in the “Safe Harbor” Cautionary Statement and "Management’s Discussion and Analysis of Financial Condition and Results of Operations" in Part I, Item 2, see the risk factors set forth in Part I, Item 1A of our annual report on Form 10-K for the fiscal year ended September 29, 2012.

ITEM 2.     Unregistered Sales Of Equity Securities and Use Of Proceeds

The following table provides the specified information about the repurchases of shares by the Company during the three months ended June 29, 2013.

Period	Total number of shares purchased	Average price paid per share		Total number of shares purchased as part of publicly announced plans or programs	Maximum approximate dollar value of shares that may yet be purchased under the plans or programs*
March 31 to April 27, 2013	211,323	$	25.00	211,323	$	23,175,870
April 28 to May 25, 2013	149,872	27.92		149,872	$	18,991,021
May 26 to June 29, 2013	172,326	29.23		172,326	$	13,953,520
Total	533,521	$	27.19	533,521

* On October 23, 2012, the Board of Directors approved a stock repurchase program under which the Company is authorized to repurchase up to $50 million of its common stock. As of June 29, 2013, the Company had repurchased 1,410,626 shares for approximately $36.0 million, at an average price of $25.55 per share. These shares were recorded as treasury stock. In addition, as of June 29, 2013, the Company had a commitment of approximately $0.6 million related to the purchase of 21,749 shares, which were purchased before June 29, 2013, but settled after the end of the fiscal third quarter.

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ITEM 6.    Exhibits

31.1	Certification of Chief Executive Officer pursuant to Section 302(a) of the Sarbanes Oxley Act of 2002.
31.2	Certification of Chief Financial Officer pursuant to Section 302(a) of the Sarbanes Oxley Act of 2002.
32.1	Certification of the CEO pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	Certification of the CFO pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
99.1	Reconciliation of ROIC to GAAP Financial Statements
101	The following materials from Plexus Corp.’s Quarterly Report on Form 10-Q for the quarter ended June 29, 2013, formatted in XBRL (Extensible Business Reporting Language): (i) the Condensed Consolidated Statements of Comprehensive Income, (ii) the Condensed Consolidated Balance Sheets, (iii) the Condensed Consolidated Statements of Cash Flows, and (iv) Notes to Condensed Consolidated Financial Statements.
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Plexus Corp.
	Registrant
Date:8/1/13	/s/ Dean A. Foate
	Dean A. Foate
	Chairman, President and Chief Executive Officer
Date:8/1/13	/s/ Ginger M. Jones
	Ginger M. Jones
	Senior Vice President and Chief Financial Officer

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EX-31.1

Exhibit 31.1

CERTIFICATION

I, Dean A. Foate, certify that:

1. I have reviewed this quarterly report on Form 10-Q for the quarter ended June 29, 2013 of Plexus Corp.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 1, 2013

/s/    Dean A. Foate        

Dean A. Foate

Chairman, President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Ginger M. Jones, certify that:

1. I have reviewed this quarterly report on Form 10-Q for the quarter ended June 29, 2013 of Plexus Corp.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to

make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 1, 2013

/s/    Ginger M. Jones        

Ginger M. Jones

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Plexus Corp. (the “Company”) on Form 10-Q for the quarterly period ended June 29, 2013, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Dean A. Foate, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/    Dean A. Foate        

Dean A. Foate

Chief Executive Officer

August 1, 2013

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Plexus Corp. and will be retained by Plexus Corp. and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Plexus Corp. (the “Company”) on Form 10-Q for the quarterly period ended June 29, 2013, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Ginger M. Jones, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/    Ginger M. Jones        

Ginger M. Jones

Chief Financial Officer

August 1, 2013

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Plexus Corp. and will be retained by Plexus Corp. and furnished to the Securities and Exchange Commission or its staff upon request.

EX-99.1

Exhibit 99.1

PLEXUS CORP.

NON-GAAP SUUPLEMENTAL INFORMATION

(in thousands, except per share data)

(unaudited)

ROIC Calculation

	Nine Months Ended				Six Months Ended				Nine Months Ended
	June 29, 2013				March 30, 2013				June 30, 2012
Operating income	$	69,856			$	44,672			$	76,810
	/		3		/		2		/		3
	23,285				22,336				25,603
	x		4		x		4		x		4
Annualized operating income	93,140				89,344				102,413
Tax rate	x		8	%	x		8	%	x		9	%
Tax impact			7,451				7,148				9,217
Operating income (tax effected)	$	85,689			$	82,196			$	93,196
Average invested capital	$	647,971			$	645,402			$	623,320
ROIC	13.2			%	12.7			%	15.0			%

	June 29, 2013			March 30, 2013			December 29, 2012			September 29, 2012
Equity	$	679,539		$	669,047		$	664,515		$	649,022
Plus:
Debt—current	2,984			2,893			10,310			10,211
Debt—non-current	258,758			258,789			259,516			260,211
Less:
Cash and cash equivalents	(285,604		)	(276,507		)	(274,183		)	(297,619		)
	$	655,677		$	654,222		$	660,158		$	621,825

Fiscal 2013 third quarter average invested capital (June 29, 2013, March 30, 2013, December 29, 2012 and September 29, 2012) was $647,971.

Fiscal 2013 second quarter average invested capital (March 30, 2013, December 29, 2012 and September 29, 2012) was $645,402.

	June 30, 2012			March 31, 2012			December 31, 2011			October 1, 2011
Equity	$	638,573		$	615,296		$	581,811		$	558,882
Plus:
Debt—current	13,838			17,518			17,446			17,350
Debt—non-current	260,843			261,542			265,941			270,292
Less:
Cash and cash equivalents	(277,909		)	(257,754		)	(248,284		)	(242,107		)
	$	635,345		$	636,602		$	616,914		$	604,417

Fiscal 2012 third quarter average invested capital (June 30, 2012, March 31, 2012, December 31, 2011 and October 1, 2011) was $623,320.

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Litigation

9 Months Ended

Jun. 29, 2013

Litigation [Abstract]

Litigation [Text Block]

LITIGATION

The Company is party to certain lawsuits in the ordinary course of business. Management does not believe that these proceedings, individually or in the aggregate, will have a material adverse effect on the Company’s consolidated financial position, results of operations or cash flows.

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Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 29, 2013	Sep. 29, 2012
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 1,156	$ 1,011
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	48,984,000	48,851,000
Common stock, shares outstanding	33,819,000	35,097,000
Treasury stock, shares	15,164,000	13,754,000

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Debt

9 Months Ended

Jun. 29, 2013

Debt Instruments [Abstract]

Debt

DEBT

On May 15, 2012, the Company entered into a five-year, $250 million senior unsecured credit facility that terminates on May 15, 2017 (the “Credit Facility”). The Credit Facility includes a $160 million revolving credit facility and a $90 million term loan. The revolving credit facility may be increased by $100 million (the "increase option") to $260 million generally by mutual agreement of the Company, the lenders, the letter of credit issuers and the administrative agent named in the related credit agreement (the "Credit Agreement"), subject to certain customary conditions. The Credit Facility was used to refinance the Company's then-existing $100 million senior unsecured revolving credit facility (no amounts were outstanding at that time) and its $150 million senior unsecured term loan (balance of $90.0 million as of May 15, 2012), both of which were scheduled to mature on April 4, 2013 (the “Prior Credit Facility”), and for general corporate purposes. Quarterly principal repayments of the Credit Facility term loan of $3.75 million per quarter began on June 29, 2012 and ended on March 28, 2013. The final $75 million payment is due on May 15, 2017. As of June 29, 2013, the Company had term loan borrowings of $75 million outstanding and no revolving borrowings under the Credit Facility.

The financial covenants (as defined under the Credit Facility) require that the Company maintain, as of each fiscal quarter end, a maximum total leverage ratio and a minimum interest coverage ratio. As of June 29, 2013, the Company was in compliance with all covenants of the Credit Facility. Borrowings under the Credit Facility, at the Company's option, bear interest at a defined base rate or the LIBOR rate plus, in each case, an applicable margin based upon the Company's leverage ratio as defined in the Credit Agreement. Rates would increase upon negative changes in specified Company financial metrics and would decrease to no less than LIBOR plus 1.00% or base rate plus 0% upon reduction in the current total leverage ratio. As of June 29, 2013, the Company had a borrowing rate of LIBOR plus 1.13%. As of June 29, 2013, all outstanding debt under the Credit Facility is at a fixed interest rate as a result of the interest rate swap contract discussed in Note 6, "Derivatives and Fair Value Measurements." There is no floating rate debt outstanding under the Credit Facility as of June 29, 2013. The Company is also required to pay an annual commitment fee on the unused revolver credit commitment based on the Company's leverage ratio; the fee was 0.2% as of June 29, 2013.

In the second quarter of fiscal 2012, the Company incurred approximately $0.9 million in new debt issuance costs in connection with the new Credit Facility, which are being amortized over the five-year term of the Credit Facility.

The Company also has outstanding 5.20% Senior Notes, due on June 15, 2018 (the “Notes”); $175 million principal of the Notes was outstanding as of both June 29, 2013 and September 29, 2012. At June 29, 2013, the Company was in compliance with all covenants under the indenture relating to the Notes.

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Derivatives And Fair Value Measurements (Tables)

3 Months Ended

9 Months Ended

Jun. 29, 2013

Jun. 29, 2013

Derivatives And Fair Value Measurements [Abstract]

Schedule Of Fair Values Of Derivative Instruments

Fair Values of Derivative Instruments
In thousands of dollars
	Asset Derivatives					Liability Derivatives
		June 29, 2013		September 29, 2012			June 29, 2013		September 29, 2012
Derivatives designated as hedging instruments	Balance Sheet Location	Fair Value		Fair Value		Balance Sheet Location	Fair Value		Fair Value
Interest rate swaps	Prepaid expenses and other	$	414	$	—	Current liabilities – Other	$	—	$	1,715
Forward contracts	Prepaid expenses and other	$	—	$	1,095	Current liabilities – Other	$	1,078	$	—

Schedule Of The Effect Of Derivative Instruments On The Condensed Statements Of Operations

The Effect of Derivative Instruments on the Condensed Statements of Comprehensive Income
for the Three Months Ended
In thousands of dollars
Derivatives in Cash Flow Hedging Relationships	Amount of Gain or (Loss) Recognized in Other Comprehensive Income (“OCI”) on Derivative (Effective Portion)						Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	June 29, 2013			June 30, 2012				June 29, 2013			June 30, 2012				June 29, 2013		June 30, 2012
Interest rate swaps	$	414		$	23		Interest income (expense)	$	(62	)	$	(868	)	Other income (expense)	$	—	$	—
Forward contracts	$	(872	)	$	(1,631	)	Selling and administrative expenses	$	535		$	(52	)	Other income (expense)	$	—	$	—
Treasury Rate Locks	$	—		$	—		Interest income (expense)	$	80		$	79		Other income (expense)	$	—	$	—
Income Tax (Benefit) Expense	$	—		$	—		Income Tax (Benefit) Expense	$	2,191		$	—		Income Tax (Benefit) Expense	$	—	$	—

The Effect of Derivative Instruments on the Condensed Statements of Comprehensive Income
for the Nine Months Ended
In thousands of dollars
Derivatives in Cash Flow Hedging Relationships	Amount of Gain or (Loss) Recognized in Other Comprehensive Income  (“OCI”) on Derivative (Effective Portion)					Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain or (Loss) Recognized in Income on  Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	June 29, 2013			June 30, 2012			June 29, 2013			June 30, 2012				June 29, 2013		June 30, 2012
Interest rate swaps	$	1,219		$	38	Interest income (expense)	$	(910	)	$	(2,686	)	Other income (expense)	$	—	$	—
Forward contracts	$	(970	)	$	761	Selling and administrative expenses	$	1,207		$	(356	)	Other income (expense)	$	—	$	—
Treasury Rate Locks	$	—		$	—	Interest income (expense)	$	240		$	239		Other income (expense)	$	—	$	—
Income Tax (Benefit) Expense	$	—		$	—	Income Tax (Benefit) Expense	$	2,191		$	—		Income Tax (Benefit) Expense	$	—	$	—

Schedule Of Fair Value Measurements Using Input Levels Asset/(Liability)

The following table lists the fair values of assets/(liabilities) of the Company’s derivatives as of June 29, 2013, by input level as defined above (in thousands):

Derivatives	Level 1		Level 2			Level 3		Total
Interest rate swaps	$	—	$	414		$	—	$	414
Foreign currency forward contracts	$	—	$	(1,078	)	$	—	$	(1,078	)

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Contingencies

9 Months Ended

Jun. 29, 2013

Commitments and Contingencies Disclosure [Abstract]

Contingencies

CONTINGENCIES

As of June 29, 2013, the Company had approximately $5.0 million of outstanding accounts receivables and inventory related to a customer with poor financial health that failed to make consistent payments in prior quarters. Subsequent to the end of the quarter, on July 19, 2013, the Company collected all past due accounts receivable balances from this customer. Due to ongoing concerns over the financial health of the customer and the outstanding exposure related to costs associated with inventory and open orders for materials required to manufacture the customer's products, the Company continues to maintain a $0.7 million reserve, the estimated loss it believes is probable, related to this customer.

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Stock-Based Compensation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Share-based Compensation [Abstract]
Allocated Share-based Compensation Expense	$ 3.1	$ 3.2	$ 9.0	$ 9.6

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Guarantees (Tables)

9 Months Ended

Jun. 29, 2013

Guarantees [Abstract]

Schedule Of Limited Warranty Liability

Below is a table summarizing the activity related to the Company’s limited warranty liability for fiscal 2012 and for the nine months endedJune 29, 2013 (in thousands):

Limited warranty liability, as of October 1, 2011	$	5,453
Accruals for warranties issued during the period	649
Settlements (in cash or in kind) during the period	(957		)
Limited warranty liability, as of September 29, 2012	5,145
Accruals for warranties issued during the period	507
Settlements (in cash or in kind) during the period	(249		)
Limited warranty liability, as of June 29, 2013	$	5,403

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Business Segments(Tables)

9 Months Ended

Jun. 29, 2013

Segment Reporting [Abstract]

Schedule Of Financial Information About Company's Reportable Segments

Information about the Company’s three reportable segments for the three and nine months endedJune 29, 2013 and June 30, 2012, respectively, follows (in thousands):

	Three Months Ended						Nine Months Ended
	June 29, 2013			June 30, 2012			June 29, 2013			June 30, 2012
Net sales:
AMER	$	268,154		$	317,565		$	787,035		$	970,124
APAC	297,659			301,368			858,357			797,631
EMEA	30,697			22,019			93,809			69,290
Elimination of inter-segment sales	(24,565		)	(32,133		)	(78,900		)	(125,102		)
	$	571,945		$	608,819		$	1,660,301		$	1,711,943
Operating income (loss):
AMER	$	16,934		$	24,084		$	52,708		$	73,351
APAC	31,523			27,797			83,629			72,591
EMEA	(1,159		)	(854		)	(546		)	(1,454		)
Corporate and other costs	(22,114		)	(23,747		)	(65,935		)	(67,678		)
	$	25,184		$	27,280		$	69,856		$	76,810
Other income (expense):
Interest expense	$	(2,650	)	$	(4,125	)	$	(10,010	)	$	(12,205	)
Interest income	402			446			1,182			1,344
Miscellaneous	8			1,860			(467		)	1,543
Income before income taxes	$	22,944		$	25,461		$	60,561		$	67,492
	June 29, 2013			September 29, 2012
Total assets:
AMER	$	429,542		$	400,643
APAC	827,413			771,781
EMEA	106,467			88,420
Corporate	81,538			147,355
	$	1,444,960		$	1,408,199

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Derivatives And Fair Value Measurements (Schedule Of Fair Values Of Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Sep. 29, 2012
Interest Rate Swaps [Member]
Derivatives And Fair Value Measurements [Line Items]
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net	$ 414	$ 1,700
Derivatives Designated As Hedging Instruments [Member] | Prepaid Expenses And Other [Member] | Forward Contracts [Member]
Derivatives And Fair Value Measurements [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	0	1,095
Derivatives Designated As Hedging Instruments [Member] | Current Liabilities - Other [Member] | Interest Rate Swaps [Member]
Derivatives And Fair Value Measurements [Line Items]
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net	0	1,715
Derivatives Designated As Hedging Instruments [Member] | Current Liabilities - Other [Member] | Forward Contracts [Member]
Derivatives And Fair Value Measurements [Line Items]
Derivative liabilities designated as hedging instruments, Fair Value	$ 1,078	$ 0

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Business Segments (Schedule Of Financial Information About Company's Reportable Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012	Sep. 29, 2012
Segment Reporting Information [Line Items]
Net sales	$ 571,945	$ 608,819	$ 1,660,301	$ 1,711,943
Operating income (loss)	25,184	27,280	69,856	76,810
Interest expense	(2,650)	(4,125)	(10,010)	(12,205)
Interest income	402	446	1,182	1,344
Miscellaneous	8	1,860	(467)	1,543
Income before income taxes	22,944	25,461	60,561	67,492
Total assets	1,444,960		1,444,960		1,408,199
AMER [Member]
Segment Reporting Information [Line Items]
Net sales	268,154	317,565	787,035	970,124
Operating income (loss)	16,934	24,084	52,708	73,351
Total assets	429,542		429,542		400,643
APAC [Member]
Segment Reporting Information [Line Items]
Net sales	297,659	301,368	858,357	797,631
Operating income (loss)	31,523	27,797	83,629	72,591
Total assets	827,413		827,413		771,781
EMEA [Member]
Segment Reporting Information [Line Items]
Net sales	30,697	22,019	93,809	69,290
Operating income (loss)	(1,159)	(854)	(546)	(1,454)
Total assets	106,467		106,467		88,420
Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Net sales	(24,565)	(32,133)	(78,900)	(125,102)
Corporate [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	(22,114)	(23,747)	(65,935)	(67,678)
Total assets	$ 81,538		$ 81,538		$ 147,355

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Property, Plant And Equipment (Schedule Of Property, Plant And Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Sep. 29, 2012
Property, Plant and Equipment, Net [Abstract]
Land, buildings and improvements	$ 211,894	$ 170,557
Machinery and equipment	312,169	295,548
Computer hardware and software	92,084	85,433
Construction in progress	53,197	39,894
Property, plant and equipment, gross	669,344	591,432
Less: accumulated depreciation	354,833	326,241
Property, plant and equipment, net	$ 314,511	$ 265,191

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Shareholders' Equity (Details) (USD $)	0 Months Ended	3 Months Ended	9 Months Ended
	Oct. 23, 2012	Jun. 29, 2013	Jun. 29, 2013	Jun. 30, 2012
Stockholders' Equity Note [Abstract]
Stock Repurchase Program, Authorized Amount	$ 50,000,000
Stock Repurchased During Period, Shares		500,000	1,400,000
Cost of shares repurchased		14,500,000	36,047,000	0
Average price of repurchased shares		$ 27.19	$ 25.55
Committed Payments for Repurchase of Common Stock		$ 600,000
Shares of Common Stock Committed to Purchase		21,749

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Earnings Per Share (Tables)

9 Months Ended

Jun. 29, 2013

Earnings Per Share [Abstract]

Schedule Of Reconciliation Of Amounts Utilized In Computation Of Basic And Diluted Earnings Per Share

The following is a reconciliation of the amounts utilized in the computation of basic and diluted earnings per share (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	June 29, 2013		June 30, 2012		June 29, 2013		June 30, 2012
Basic and Diluted Earnings Per Share:
Net income	$	23,204	$	23,533	$	57,795	$	61,361
Basic weighted average common shares outstanding	33,797		34,982		33,744		34,819
Dilutive effect of share-based awards outstanding	566		661		482		682
Diluted weighted average shares outstanding	34,363		35,643		34,226		35,501
Earnings per share:
Basic	$	0.69	$	0.67	$	1.71	$	1.76
Diluted	$	0.68	$	0.66	$	1.69	$	1.73

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Basis Of Presentation And Accounting Policies

9 Months Ended

Jun. 29, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis Of Presentation And Accounting Policies

BASIS OF PRESENTATION AND ACCOUNTING POLICIES

Basis of Presentation

The accompanying condensed consolidated financial statements included herein have been prepared by Plexus Corp. and its subsidiaries (together “Plexus,” the “Company,” or “we”) without audit and pursuant to the rules and regulations of the United States (“U.S.”) Securities and Exchange Commission (“SEC”). In the opinion of the Company, the accompanying condensed consolidated financial statements reflect all adjustments, which include normal recurring adjustments necessary for the fair statement of the consolidated financial position of the Company as of June 29, 2013 and September 29, 2012, and the results of operations for the three and nine months endedJune 29, 2013 and June 30, 2012, and the cash flows for the same nine month periods.

Certain information and footnote disclosures, normally included in financial statements prepared in accordance with generally accepted accounting principles, have been condensed or omitted pursuant to the SEC’s rules and regulations dealing with interim financial statements. However, the Company believes that the disclosures made in the condensed consolidated financial statements included herein are adequate to make the information presented not misleading. It is suggested that these condensed consolidated financial statements be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s 2012 Annual Report on Form 10-K.

The Company’s reportable segments consist of the “Americas” (“AMER”) segment, “Asia-Pacific” (“APAC”) segment and “Europe, Middle East, and Africa” (“EMEA”) segment. Refer to Note 10, "Business Segments," for further details on reportable segments.

Cash and Cash Equivalents

Cash and cash equivalents include highly liquid investments with original maturities of three months or less at the time of purchase and are classified as Level 1 in the fair level hierarchy described below.

Fair Value of Financial Instruments

The Company holds financial instruments consisting of cash and cash equivalents, accounts receivable, accounts payable, debt, derivatives, and capital lease obligations. The carrying values of cash and cash equivalents, accounts receivable, accounts payable, derivatives, and capital lease obligations as reported in the condensed consolidated financial statements approximate fair value. Accounts receivable were 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 the Company’s long-term debt was $246.3 million and $256.8 million as of June 29, 2013 and September 29, 2012, respectively. The carrying value of the Company’s long-term debt was $250.0 million and $257.5 million for the periods ended June 29, 2013 and September 29, 2012, respectively. The Company uses quoted market prices when available or discounted cash flows to calculate the fair value of its debt. If measured at fair value in the financial statements, long-term debt (including the current portion) would be classified as Level 2 in the fair value hierarchy described below. Refer to Note 6, "Derivatives and Fair Value Measurements," for further details on derivatives.

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.

Reclassifications

Certain amounts in prior year periods within financing activities on the Consolidated Statements of Cash Flows were reclassified to conform to the current year presentation.

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Inventories

9 Months Ended

Jun. 29, 2013

Inventory, Net [Abstract]

Inventories

INVENTORIES

Inventories are stated at the lower of cost (on a first-in, first-out basis) or market value. The stated cost is comprised of direct materials, labor, and overhead. The major classes of inventories, net of applicable lower of cost or market write-downs, were as follows (in thousands):

	June 29, 2013		September 29, 2012
Raw materials	$	310,832	$	337,657
Work-in-process	55,229		47,182
Finished goods	73,522		72,852
	$	439,583	$	457,691

Per contractual terms, customer deposits are received by the Company to offset obsolete and excess inventory risks. The total amount of customer deposits related to inventory and included within current liabilities on the accompanying Condensed Consolidated Balance Sheets as of June 29, 2013 and September 29, 2012 was $61.4 million and $34.8 million, respectively. Approximately $17.9 million of the inventory customer deposit balance as of June 29, 2013 relates to the disengagement of Juniper Networks, Inc. ("Juniper").

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Derivatives And Fair Value Measurements

9 Months Ended

Jun. 29, 2013

Derivatives And Fair Value Measurements [Abstract]

Derivatives And Fair Value Measurements

DERIVATIVES AND FAIR VALUE MEASUREMENTS

All derivatives are recognized in the accompanying Condensed Consolidated Balance Sheets at their estimated fair value. The Company currently has cash flow hedges related to variable rate debt and foreign currency obligations. The Company also enters into forward exchange contracts from time to time to manage foreign currency exchange rate exposures associated with certain foreign currency denominated receivables and payables. The Company does not enter into derivatives for speculative purposes. Changes in the fair value of the derivatives that qualify as cash flow hedges are recorded in “Accumulated other comprehensive income” in the accompanying Condensed Consolidated Balance Sheets until earnings are affected by the variability of the cash flows. There were no contracts outstanding related to foreign currency denominated receivables and payables at June 29, 2013.

The Company’s Malaysian operations have entered into forward exchange contracts on a rolling basis with a total notional value of $49.5 million as of June 29, 2013. These forward contracts fix the exchange rates on foreign currency cash used to pay a portion of local currency expenses. The total fair value of these forward contracts was a $1.1 millionliability as of June 29, 2013, and a $1.1 million asset as of September 29, 2012.

On June 4, 2013, the Company entered into an interest rate swap contract to replace the three interest rate swap contracts that matured on April 4, 2013, as described below. The new interest rate swap contract is related to the $75.0 million term loan under the Company's Credit Facility. This interest rate swap pays the Company variable interest at the one month LIBOR rate, and the Company pays the counterparty a fixed interest rate. The fixed interest rate for the contract is 0.875%. Based on the terms of the interest rate swap contract and the underlying debt, the interest rate contract was determined to be effective, and thus qualifies as a cash flow hedge. As such, any changes in the fair value of the interest rate swap are recorded in “Accumulated other comprehensive income” on the accompanying Condensed Consolidated Balance Sheets until earnings are affected by the variability of cash flows. The total fair value of the interest rate swap contract was a $0.4 million asset as of June 29, 2013. As of June 29, 2013, the notional amount of the Company’s interest rate swap was $75.0 million.

The Company entered into three interest rate swap contracts related to the term loans under its Prior Credit Facility that had an initial total notional value of $150 million and matured on April 4, 2013, which resulted in a $2.0 million discrete tax benefit in the three months endedJune 29, 2013. The fixed interest rates for each of these contracts were 4.415%, 4.490% and 4.435%, respectively. These interest rate swap contracts were originally entered into to convert $150 million of the variable rate term loan under the Prior Credit Facility into fixed rate debt. Based on the terms of the interest rate swap contracts and the underlying debt, these interest rate contracts were determined to be effective, and thus qualified as a cash flow hedge. As such, any changes in the fair value of these interest rate swaps were recorded in “Accumulated other comprehensive income” on the accompanying Condensed Consolidated Balance Sheets until earnings were affected by the variability of cash flows. The total fair value of these interest rate swap contracts was a $1.7 million liability as of September 29, 2012.

The tables below present information regarding the fair values of derivative instruments (as defined in Note 1, "Basis of Presentation and Accounting Policies") and the effects of derivative instruments on the Company’s Condensed Consolidated Financial Statements:

Fair Values of Derivative Instruments
In thousands of dollars
	Asset Derivatives					Liability Derivatives
		June 29, 2013		September 29, 2012			June 29, 2013		September 29, 2012
Derivatives designated as hedging instruments	Balance Sheet Location	Fair Value		Fair Value		Balance Sheet Location	Fair Value		Fair Value
Interest rate swaps	Prepaid expenses and other	$	414	$	—	Current liabilities – Other	$	—	$	1,715
Forward contracts	Prepaid expenses and other	$	—	$	1,095	Current liabilities – Other	$	1,078	$	—

The Effect of Derivative Instruments on the Condensed Statements of Comprehensive Income
for the Three Months Ended
In thousands of dollars
Derivatives in Cash Flow Hedging Relationships	Amount of Gain or (Loss) Recognized in Other Comprehensive Income (“OCI”) on Derivative (Effective Portion)						Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	June 29, 2013			June 30, 2012				June 29, 2013			June 30, 2012				June 29, 2013		June 30, 2012
Interest rate swaps	$	414		$	23		Interest income (expense)	$	(62	)	$	(868	)	Other income (expense)	$	—	$	—
Forward contracts	$	(872	)	$	(1,631	)	Selling and administrative expenses	$	535		$	(52	)	Other income (expense)	$	—	$	—
Treasury Rate Locks	$	—		$	—		Interest income (expense)	$	80		$	79		Other income (expense)	$	—	$	—
Income Tax (Benefit) Expense	$	—		$	—		Income Tax (Benefit) Expense	$	2,191		$	—		Income Tax (Benefit) Expense	$	—	$	—

The Effect of Derivative Instruments on the Condensed Statements of Comprehensive Income
for the Nine Months Ended
In thousands of dollars
Derivatives in Cash Flow Hedging Relationships	Amount of Gain or (Loss) Recognized in Other Comprehensive Income  (“OCI”) on Derivative (Effective Portion)					Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)						Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Gain or (Loss) Recognized in Income on  Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	June 29, 2013			June 30, 2012			June 29, 2013			June 30, 2012				June 29, 2013		June 30, 2012
Interest rate swaps	$	1,219		$	38	Interest income (expense)	$	(910	)	$	(2,686	)	Other income (expense)	$	—	$	—
Forward contracts	$	(970	)	$	761	Selling and administrative expenses	$	1,207		$	(356	)	Other income (expense)	$	—	$	—
Treasury Rate Locks	$	—		$	—	Interest income (expense)	$	240		$	239		Other income (expense)	$	—	$	—
Income Tax (Benefit) Expense	$	—		$	—	Income Tax (Benefit) Expense	$	2,191		$	—		Income Tax (Benefit) Expense	$	—	$	—

During the third quarter of fiscal 2011, when the fixed interest rate for the Company's issuance of $175 million of Notes was determined, all three related treasury rate lock contracts were settled and the Company received proceeds of $2.3 million, which is being amortized over the seven year term of the related debt.

The following table lists the fair values of assets/(liabilities) of the Company’s derivatives as of June 29, 2013, by input level as defined above (in thousands):

Derivatives	Level 1		Level 2			Level 3		Total
Interest rate swaps	$	—	$	414		$	—	$	414
Foreign currency forward contracts	$	—	$	(1,078	)	$	—	$	(1,078	)

The fair value of interest rate swaps and foreign currency forward contracts is determined using a market approach which includes obtaining directly or indirectly observable values from third parties active in the relevant markets. The primary input in the fair value of the interest rate swaps is the relevant LIBOR forward curve. Inputs in the fair value of the foreign currency forward contracts include prevailing forward and spot prices for currency and interest rate forward curves.

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Property, Plant And Equipment

9 Months Ended

Jun. 29, 2013

Property, Plant and Equipment, Net [Abstract]

Property, Plant And Equipment

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consisted of the following categories (in thousands):

	June 29, 2013		September 29, 2012
Land, buildings and improvements	$	211,894	$	170,557
Machinery and equipment	312,169		295,548
Computer hardware and software	92,084		85,433
Construction in progress	53,197		39,894
	669,344		591,432
Less: accumulated depreciation	354,833		326,241
	$	314,511	$	265,191

The major component of the construction in progress balance is related to footprint expansion in Neenah, Wisconsin.

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Guarantees (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Jun. 29, 2013	Sep. 29, 2012
Product Warranty [Line Items]
Limited warranty liability, beginning balance	$ 5,145	$ 5,453
Accruals for warranties issued during the period	507	649
Settlements (in cash or in kind) during the period	(249)	(957)
Limited warranty liability, ending balance	$ 5,403	$ 5,145
Minimum [Member]
Product Warranty [Line Items]
Products warranty specifications period, months	12
Maximum [Member]
Product Warranty [Line Items]
Products warranty specifications period, months	24

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Basis Of Presentation And Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jun. 29, 2013 M	Sep. 29, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Liquid investments, maximum maturity period, months	3
Fair value of long-term debt	$ 246.3	$ 256.8
Long-term Debt	$ 250.0	$ 257.5

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Debt (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jun. 29, 2013 Rate	May 15, 2012	May 15, 2012 New Credit Facility [Member]	May 15, 2012 Revolving Loans New Credit Facility[Member]	Apr. 04, 2008 Revolving Loans Prior Credit Facility [Member]	May 15, 2012 Term Loans Prior Credit Facility [Member]	Apr. 04, 2008 Term Loans Prior Credit Facility [Member]	Jun. 29, 2013 Term Loans New Credit Facility [Member]	May 15, 2012 Term Loans New Credit Facility [Member]	May 15, 2012 Increase Option [Member]	Jun. 29, 2013 Senior Notes [Member]	Mar. 30, 2013 Senior Notes [Member]	Sep. 29, 2012 Senior Notes [Member]	Jan. 01, 2011 Senior Notes [Member] Rate
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity			$ 250	$ 160	$ 100
Credit facility outstanding at end of period						90.0	150.0	75.0	90.0
Contractual Quarterly Debt Repayment Amount		3.75
Contractual Balloon Debt Repayment		75
Line of Credit Facility, Maximum Borrowing Capacity				260						100
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	1.00%
Debt Instrument, Interest Rate at Period End	1.13%
Line of Credit, Unused Capacity, Commitment Fee Percentage at Period End	0.20%
Deferred Finance Costs, Net		0.9
Debt Instrument, Interest Rate, Stated Percentage														5.20%
Senior Notes, principal outstanding											$ 175	$ 175	$ 175

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Earnings Per Share (Schedule Of Reconciliation Of Amounts Utilized In Computation Of Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Earnings Per Share [Line Items]
Net income	$ 23,204	$ 23,533	$ 57,795	$ 61,361
Basic weighted average common shares outstanding	33,797	34,982	33,744	34,819
Dilutive effect of share-based awards outstanding	566	661	482	682
Diluted weighted average shares outstanding	34,363	35,643	34,226	35,501
Earnings per share, Basic	$ 0.69	$ 0.67	$ 1.71	$ 1.76
Earnings per share, Diluted	$ 0.68	$ 0.66	$ 1.69	$ 1.73
Stock Options [Member]
Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted earnings per share	2,000	1,400	2,000	1,300

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Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Sep. 29, 2012
Current assets:
Cash and cash equivalents	$ 285,604	$ 297,619
Accounts receivable, net of allowances of $1,156 and $1,011, respectively	335,118	323,210
Inventories	439,583	457,691
Deferred income taxes	2,262	2,232
Prepaid expenses and other	22,267	15,785
Total current assets	1,084,834	1,096,537
Property, plant and equipment, net	314,511	265,191
Deferred income taxes	4,068	4,335
Other	41,547	42,136
Total assets	1,444,960	1,408,199
Current liabilities:
Current portion of long-term debt and capital lease obligations	2,984	10,211
Accounts payable	304,913	341,276
Customer deposits	105,608	36,384
Accrued liabilities:
Salaries and wages	36,193	45,450
Other	39,035	46,550
Total current liabilities	488,733	479,871
Long-term debt and capital lease obligations, net of current portion	258,758	260,211
Other liabilities	17,930	19,095
Total non-current liabilities	276,688	279,306
Commitments and contingencies (Note 13)
Shareholders' equity:
Preferred stock, $.01 par value, 5,000 shares authorized, none issued or outstanding	0	0
Common stock, $.01 par value, 200,000 shares authorized, 48,984 and 48,851 shares issued, respectively, and 33,819 and 35,097 shares outstanding, respectively	490	489
Additional paid-in capital	444,932	435,546
Common stock held in treasury, at cost, 15,164 and 13,754 shares, respectively	(436,157)	(400,110)
Retained earnings	654,708	596,913
Accumulated other comprehensive income	15,566	16,184
Total shareholders’ equity	679,539	649,022
Liabilities and Equity	$ 1,444,960	$ 1,408,199

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Income Taxes

9 Months Ended

Jun. 29, 2013

Income Tax Expense (Benefit) [Abstract]

Income Taxes

INCOME TAXES

Income tax (benefit) expense for the three and nine months endedJune 29, 2013 was $(0.3) million and $2.8 million, respectively. The effective tax rates for the three and nine months endedJune 29, 2013 were (1.1) percent and 4.6 percent, respectively. The decrease in the effective tax rate for the quarter, compared to the effective tax rate for the current fiscal year-to-date, was due to a $2.0 million discrete tax benefit resulting from the expiration of three interest rate swap contracts during the quarter. The decrease in the effective tax rate for the three and nine months endedJune 29, 2013, as compared to 7.6 percent and 9.1 percent, for the three and nine months endedJune 30, 2012, respectively, was primarily due to an increase in the portion of the Company's income from its APAC segment, which benefits from reduced taxes due to tax holidays and the discrete tax benefit noted above. Also, as demonstrated in recent quarters, the tax rate will vary during the year based on the mix of forecasted earnings by tax jurisdiction.

As of June 29, 2013, there was no material change in the amount of unrecognized tax benefits recorded for uncertain tax positions as compared to fiscal 2012 year end. The Company recognizes accrued interest and penalties related to uncertain tax positions in income tax expense. The amount of interest and penalties recorded for both the three and nine months endedJune 29, 2013 and June 30, 2012 was not material.

It is reasonably possible that a number of uncertain tax positions may be settled within the next 12 months. The Company is currently under examination by taxing authorities in the U.S.; however, the Company is not currently under examination in any of the foreign jurisdictions in which the Company has significant operations.

The Company maintains valuation allowances when it is more likely than not that all or a portion of a deferred tax asset will not be realized. During the three and nine months endedJune 29, 2013, the Company continued to record a full valuation allowance against its net deferred tax assets in the U.S., Germany and Romania and at one of the Company's subsidiaries in the United Kingdom, as it is more likely than not that these assets will not be fully realized based primarily on historical performance. The Company will continue to provide a valuation allowance against its net deferred tax assets in each of the applicable jurisdictions going forward until the need for a valuation allowance is eliminated. The need for a valuation allowance will be eliminated when the Company determines it is more likely than not that the deferred tax assets will be realized.

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Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Cash flows from operating activities
Net income	$ 57,795	$ 61,361
Adjustments to reconcile net income to cash flows from operating activities:
Depreciation	35,732	36,119
Amortization of intangibles	1,549	779
Gain on sale of property, plant and equipment	(72)	(1,228)
Deferred income taxes	(79)	1,636
Stock based compensation expense	9,012	9,588
Changes in operating assets and liabilities, excluding effects of acquisitions
Accounts receivable	(11,287)	(28,643)
Inventories	18,287	(6,400)
Prepaid expenses and other	(7,350)	(4,598)
Accounts payable	(39,133)	58,009
Customer deposits	69,301	4,286
Accrued liabilities and other	(16,853)	(14,090)
Cash flows provided by operating activities	116,902	116,819
Cash flows from investing activities
Payments for property, plant and equipment	(84,259)	(45,068)
Proceeds from sales of property, plant and equipment	520	2,753
Sale of long-term investments	0	2,000
Payments for business acquisition, net of cash acquired	0	(34,155)
Cash flows used in investing activities	(83,739)	(74,470)
Cash flows from financing activities
Proceeds from debt issuance, net of deferred finance costs	0	89,082
Payments on debt and capital lease obligations	(9,929)	(102,977)
Repurchases of common stock	(36,047)	0
Proceeds from exercise of stock options	725	6,087
Adjustments Related to Tax Withholding for Share-based Compensation	(350)	(310)
Income tax benefit of stock option exercises	0	1,717
Cash flows used in financing activities	(45,601)	(6,401)
Effect of exchange rate changes on cash and cash equivalents	423	(146)
Net (decrease) increase in cash and cash equivalents	(12,015)	35,802
Cash and cash equivalents:
Beginning of period	297,619	242,107
End of period	$ 285,604	$ 277,909

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Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Income Statement [Abstract]
Revenue, Net	$ 571,945	$ 608,819	$ 1,660,301	$ 1,711,943
Cost of sales	(516,472)	(551,426)	(1,501,645)	(1,548,274)
Gross profit	55,473	57,393	158,656	163,669
Selling and administrative expenses	30,289	30,113	88,800	86,859
Operating income	25,184	27,280	69,856	76,810
Other income (expense):
Interest expense	(2,650)	(4,125)	(10,010)	(12,205)
Interest income	402	446	1,182	1,344
Miscellaneous	8	1,860	(467)	1,543
Income before income taxes	22,944	25,461	60,561	67,492
Income tax expense	(260)	1,928	2,766	6,131
Net income	23,204	23,533	57,795	61,361
Earnings per share:
Basic	$ 0.69	$ 0.67	$ 1.71	$ 1.76
Diluted	$ 0.68	$ 0.66	$ 1.69	$ 1.73
Weighted average shares outstanding:
Basic	33,797	34,982	33,744	34,819
Diluted	34,363	35,643	34,226	35,501
Comprehensive income:
Net income	23,204	23,533	57,795	61,361
Derivative instrument fair market value adjustment - net of income tax	(3,202)	(1,113)	(2,479)	2,546
Foreign currency translation adjustments	1,271	(2,475)	1,861	(1,298)
Comprehensive income	$ 21,273	$ 19,945	$ 57,177	$ 62,609

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Business Combination (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Asset, Amount		$ 4.0
Kontron Design Manufacturing Services [Member]
Business Acquisition [Line Items]
Business acquisition, purchase price of inventory and equipment		$ 34.2
Amortization period of intangible asset acquired, years	2

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Property, Plant And Equipment (Tables)

9 Months Ended

Jun. 29, 2013

Property, Plant and Equipment, Net [Abstract]

Schedule Of Property, Plant And Equipment

Property, plant and equipment consisted of the following categories (in thousands):

	June 29, 2013		September 29, 2012
Land, buildings and improvements	$	211,894	$	170,557
Machinery and equipment	312,169		295,548
Computer hardware and software	92,084		85,433
Construction in progress	53,197		39,894
	669,344		591,432
Less: accumulated depreciation	354,833		326,241
	$	314,511	$	265,191

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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 29, 2013 Rate	Jun. 30, 2012 Rate	Jun. 29, 2013 Rate	Jun. 30, 2012 Rate
Income Tax Expense (Benefit) [Abstract]
Income tax expense	$ (260)	$ 1,928	$ 2,766	$ 6,131
Effective tax rates	(1.10%)	7.60%	4.60%	9.10%
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	2,191	0	2,191	0
Interest Rate Swaps [Member]
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)			$ 2,031

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Derivatives And Fair Value Measurements (Schedule Of The Effect Of Derivative Instruments On The Condensed Statements Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Recognized in Other Comprehensive Income (OCI) on Derivative (Effective Portion)	$ 0	$ 0	$ 0	$ 0
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	2,191	0	2,191	0
Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	0	0	0	0
Interest Rate Swap [Member]
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Recognized in Other Comprehensive Income (OCI) on Derivative (Effective Portion)	414	23	1,219	38
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)			2,031
Forward Contracts [Member]
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Recognized in Other Comprehensive Income (OCI) on Derivative (Effective Portion)	(872)	(1,631)	(970)	761
Treasury Rate Locks [Member]
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Recognized in Other Comprehensive Income (OCI) on Derivative (Effective Portion)	0	0	0	0
Selling And Administrative Expenses [Member] | Forward Contracts [Member]
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	535	(52)	1,207	(356)
Interest Expense [Member] | Interest Rate Swap [Member]
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(62)	(868)	(910)	(2,686)
Other Income (Expense) [Member] | Interest Rate Swap [Member]
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	0	0	0	0
Other Income (Expense) [Member] | Forward Contracts [Member]
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	0	0	0	0
Other Income (Expense) [Member] | Treasury Rate Locks [Member]
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	0	0	0	0
Interest Income [Member] | Treasury Rate Locks [Member]
Derivatives And Fair Value Measurements [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	$ 80	$ 79	$ 240	$ 239

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Derivatives And Fair Value Measurements (Schedule Of Fair Value Measurements Using Input Levels Asset/(Liability)) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013
Fair Value, Inputs, Level 2 [Member]
Derivatives And Fair Value Measurements [Line Items]
Fair value of derivative, net	$ 414
Interest Rate Swaps [Member]
Derivatives And Fair Value Measurements [Line Items]
Fair value of derivative, net	414
Interest Rate Swaps [Member] | Fair Value, Inputs, Level 1 [Member]
Derivatives And Fair Value Measurements [Line Items]
Fair value of derivative, net	0
Interest Rate Swaps [Member] | Fair Value, Inputs, Level 3 [Member]
Derivatives And Fair Value Measurements [Line Items]
Fair value of derivative, net	0
Foreign Currency Forward Contracts [Member]
Derivatives And Fair Value Measurements [Line Items]
Fair value of derivative, net	(1,078)
Foreign Currency Forward Contracts [Member] | Fair Value, Inputs, Level 1 [Member]
Derivatives And Fair Value Measurements [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	0
Foreign Currency Forward Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Derivatives And Fair Value Measurements [Line Items]
Fair value of derivative, net	(1,078)
Foreign Currency Forward Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Derivatives And Fair Value Measurements [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 0

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Stock-Based Compensation

9 Months Ended

Jun. 29, 2013

Share-based Compensation [Abstract]

Stock-Based Compensation

STOCK-BASED COMPENSATION

The Company recognized $3.1 million and $9.0 million of compensation expense associated with stock-based awards for the three and nine months endedJune 29, 2013, respectively, and $3.2 million and $9.6 million for the three and nine months endedJune 30, 2012, respectively.

The Company uses the Black-Scholes valuation model to determine the fair value of stock options and stock-settled SARs. The Company uses the fair value at the date of grant to value restricted stock units ("RSUs") and unrestricted stock awards. The Company recognizes stock-based compensation expense over the stock-based awards’ vesting period.

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Inventories (Schedule Of Inventories) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Sep. 29, 2012
Inventory, Net [Abstract]
Raw materials	$ 310,832	$ 337,657
Work-in-process	55,229	47,182
Finished goods	73,522	72,852
Inventory, net	439,583	457,691
Customer Deposits Related to Inventory [Line Items]
Customer deposits related to inventory	61,400	34,800
Juniper Networks [Member]
Customer Deposits Related to Inventory [Line Items]
Customer deposits related to inventory	$ 17,900

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Contingencies Accounts Receivable and Inventory Balance (Details) (USD $) In Millions, unless otherwise specified	Jun. 29, 2013
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Maximum	$ 5.0
Loss Contingency, Estimate of Possible Loss	$ 0.7

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Guarantees

9 Months Ended

Jun. 29, 2013

Guarantees [Abstract]

Guarantees

GUARANTEES

The Company offers certain indemnifications under its customer manufacturing agreements. In the normal course of business, the Company may from time to time be obligated to indemnify its customers or its customers’ customers against damages or liabilities arising out of the Company’s negligence, misconduct, breach of contract, or infringement of third party intellectual property rights. Certain agreements have extended broader indemnification, and while most agreements have contractual limits, some do not. However, the Company generally does not provide for such indemnities and seeks indemnification from its customers for damages or liabilities arising out of the Company’s adherence to customers’ specifications or designs or use of materials furnished, or directed to be used, by its customers. The Company does not believe its obligations under such indemnities are material.

In the normal course of business, the Company also provides its customers a limited warranty covering workmanship, and in some cases materials, on products manufactured by the Company. Such warranty generally provides that products will be free from defects in the Company’s workmanship and meet mutually agreed-upon specifications for periods generally ranging from 12 months to 24 months. If a product fails to comply with the Company’s limited warranty, the Company’s obligation is generally limited to correcting, at its expense, any defect by repairing or replacing such defective product. The Company’s warranty generally excludes defects resulting from faulty customer-supplied components, design defects or damage caused by any party or cause other than the Company.

The Company provides for an estimate of costs that may be incurred under its limited warranty at the time product revenue is recognized and establishes additional reserves for specifically identified product issues. These costs primarily include labor and materials, as necessary, associated with repair or replacement and are included in the Company’s accompanying Condensed Consolidated Balance Sheets in other current accrued liabilities. The primary factors that affect the Company’s warranty liability include the value and the number of shipped units and historical and anticipated rates of warranty claims. As these factors are impacted by actual experience and future expectations, the Company assesses the adequacy of its recorded warranty liabilities and adjusts the amounts as necessary.

Below is a table summarizing the activity related to the Company’s limited warranty liability for fiscal 2012 and for the nine months endedJune 29, 2013 (in thousands):

Limited warranty liability, as of October 1, 2011	$	5,453
Accruals for warranties issued during the period	649
Settlements (in cash or in kind) during the period	(957		)
Limited warranty liability, as of September 29, 2012	5,145
Accruals for warranties issued during the period	507
Settlements (in cash or in kind) during the period	(249		)
Limited warranty liability, as of June 29, 2013	$	5,403

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Earnings Per Share

9 Months Ended

Jun. 29, 2013

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

The following is a reconciliation of the amounts utilized in the computation of basic and diluted earnings per share (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	June 29, 2013		June 30, 2012		June 29, 2013		June 30, 2012
Basic and Diluted Earnings Per Share:
Net income	$	23,204	$	23,533	$	57,795	$	61,361
Basic weighted average common shares outstanding	33,797		34,982		33,744		34,819
Dilutive effect of share-based awards outstanding	566		661		482		682
Diluted weighted average shares outstanding	34,363		35,643		34,226		35,501
Earnings per share:
Basic	$	0.69	$	0.67	$	1.71	$	1.76
Diluted	$	0.68	$	0.66	$	1.69	$	1.73

For both the three and nine months endedJune 29, 2013, stock options and stock-settled stock appreciation rights ("SARs") for approximately 2.0 million shares were not included in the computation of diluted earnings per share because the options’ and stock-settled SARs’ exercise prices were greater than the average market price of the Company's common shares and, therefore, their effect would be anti-dilutive.

For the three and nine months endedJune 30, 2012, stock options and stock-settled SARs for approximately 1.4 million and 1.3 million shares, respectively, were not included in the computation of diluted earnings per share because the options' and stock-settled SARs' exercise prices were greater than the average market price of the Company's common shares and, therefore, their effect would be anti-dilutive.

As a result of the Company's stock repurchase program, there were fewer shares outstanding for the three and nine months endedJune 29, 2013 as compared to the three and nine months endedJune 30, 2012. Refer to Note 14, "Shareholders' Equity" for further information on the Company's stock repurchase program.

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Business Combination

9 Months Ended

Jun. 29, 2013

Business Combinations [Abstract]

Business Combination

BUSINESS COMBINATION

In January 2012, Plexus and Kontron AG (“Kontron”) entered into a strategic manufacturing arrangement, and completed the related asset purchase transaction described below. Under this arrangement, Kontron transitioned all manufacturing of its Kontron Design Manufacturing Services (M) Sdn. Bhd. subsidiary (“KDMS”) located in Penang, Malaysia to Plexus facilities in Penang. Plexus acquired the inventory and equipment of KDMS for an adjusted purchase price of $34.2 million, reflecting certain post-closing adjustments, which was paid with cash on-hand, and hired substantially all of KDMS's employees. No real estate was included in this transaction. This transaction was accounted for as a business combination. The purchase price was allocated primarily to inventory and equipment. An identifiable intangible asset of $4.0 million related to a customer relationship was recorded within other non-current assets in the Company's accompanying Condensed Consolidated Balance Sheets as a result of the arrangement and is being amortized on a straight-line basis over a two year period. Assuming this transaction had been made at the beginning of fiscal 2012, the consolidated pro forma results would not be materially different from reported results.

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Derivatives And Fair Value Measurements (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012	Jan. 01, 2011 Y	Jun. 28, 2008	Jun. 29, 2013 Forward Contracts [Member]	Jun. 30, 2012 Forward Contracts [Member]	Jun. 29, 2013 Forward Contracts [Member]	Jun. 30, 2012 Forward Contracts [Member]	Apr. 08, 2011 Treasury Rate Lock Hedge Contracts [Member]	Jun. 29, 2013 Interest Rate Swaps [Member]	Jun. 30, 2012 Interest Rate Swaps [Member]	Jun. 29, 2013 Interest Rate Swaps [Member]	Jun. 30, 2012 Interest Rate Swaps [Member]	Sep. 29, 2012 Interest Rate Swaps [Member]	Jun. 28, 2008 Interest Rate Swaps [Member]	Jun. 29, 2013 First Interest Rate Swaps Contracts [Member] Rate	Jun. 28, 2008 First Interest Rate Swaps Contracts [Member] Rate	Jun. 28, 2008 Second Interest Rate Swaps Contracts [Member] Rate	Jun. 28, 2008 Third Interest Rate Swaps Contracts [Member] Rate	Jun. 29, 2013 Malaysian Operations [Member] Forward Contracts [Member]	Sep. 29, 2012 Malaysian Operations [Member] Forward Contracts [Member]	Jun. 29, 2013 Term Loans New Credit Facility [Member]	May 15, 2012 Term Loans New Credit Facility [Member]	Jun. 29, 2013 Senior Notes [Member]	Mar. 30, 2013 Senior Notes [Member]	Sep. 29, 2012 Senior Notes [Member]
Derivatives And Fair Value Measurements [Line Items]
Senior Notes																										$ 175,000,000	$ 175,000,000	$ 175,000,000
Foreign Currency Contracts, Liability, Fair Value Disclosure																						1,100,000
Notional amount of forward exchange contracts																						49,500,000
Foreign Currency Contract, Asset, Fair Value Disclosure																							1,100,000
Credit facility outstanding at end of period																								75,000,000	90,000,000
Proceeds from settlement of treasury rate lock contracts											2,300,000
Amortization period of treasury rate lock settlement, years					7
Fixed interest rate																		0.875%	4.415%	4.49%	4.435%
Notional amount of interest rate swap contracts																	150,000,000
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	2,191,000	0	2,191,000	0										2,031,000
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	0	0	0	0			(872,000)	(1,631,000)	(970,000)	761,000		414,000	23,000	1,219,000	38,000
Conversion of variable rate term loan into fixed rate debt						150,000,000
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net												(414,000)		(414,000)		(1,700,000)
Notional Amount of Interest Rate Cash Flow Hedge Derivatives	$ 75,000,000		$ 75,000,000

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Shareholders' Equity

9 Months Ended

Jun. 29, 2013

Stockholders' Equity Note [Abstract]

Shareholders' Equity

SHAREHOLDERS’ EQUITY

On October 23, 2012, the Board of Directors approved a stock repurchase program under which the Company is authorized to repurchase up to $50 million of its common stock. During the three months endedJune 29, 2013, the Company repurchased 0.5 million shares for approximately $14.5 million, at an average price of $27.19 per share. For the nine months endedJune 29, 2013, the Company repurchased 1.4 million shares for approximately $36.0 million, at an average price of $25.55 per share. These shares were recorded as treasury stock. In addition, as of June 29, 2013, the Company had a commitment of approximately $0.6 million related to the purchase of 21,749 shares, which were purchased before June 29, 2013 but settled after the end of the fiscal third quarter.

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Business Segments

9 Months Ended

Jun. 29, 2013

Segment Reporting [Abstract]

Business Segments

BUSINESS SEGMENTS

Reportable segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or group, in assessing performance and allocating resources.

The Company uses an internal management reporting system, which provides important financial data to evaluate performance and allocate the Company’s resources on a regional basis. Net sales for segments are attributed to the region in which the product is manufactured or service is performed. The services provided, manufacturing processes used, class of customers serviced and order fulfillment processes used are similar and generally interchangeable across the segments. A segment’s performance is evaluated based upon its operating income (loss). A segment’s operating income (loss) includes its net sales less cost of sales and selling and administrative expenses, but excludes corporate and other costs, interest expense, other income (loss), and income taxes. Corporate and other costs primarily represent corporate selling and administrative expenses, and restructuring and impairment costs, if any. These costs are not allocated to the segments, as management excludes such costs when assessing the performance of the segments. Inter-segment transactions are generally recorded at amounts that approximate arm’s length transactions. The accounting policies for the regions are the same as for the Company taken as a whole.

Information about the Company’s three reportable segments for the three and nine months endedJune 29, 2013 and June 30, 2012, respectively, follows (in thousands):

	Three Months Ended						Nine Months Ended
	June 29, 2013			June 30, 2012			June 29, 2013			June 30, 2012
Net sales:
AMER	$	268,154		$	317,565		$	787,035		$	970,124
APAC	297,659			301,368			858,357			797,631
EMEA	30,697			22,019			93,809			69,290
Elimination of inter-segment sales	(24,565		)	(32,133		)	(78,900		)	(125,102		)
	$	571,945		$	608,819		$	1,660,301		$	1,711,943
Operating income (loss):
AMER	$	16,934		$	24,084		$	52,708		$	73,351
APAC	31,523			27,797			83,629			72,591
EMEA	(1,159		)	(854		)	(546		)	(1,454		)
Corporate and other costs	(22,114		)	(23,747		)	(65,935		)	(67,678		)
	$	25,184		$	27,280		$	69,856		$	76,810
Other income (expense):
Interest expense	$	(2,650	)	$	(4,125	)	$	(10,010	)	$	(12,205	)
Interest income	402			446			1,182			1,344
Miscellaneous	8			1,860			(467		)	1,543
Income before income taxes	$	22,944		$	25,461		$	60,561		$	67,492
	June 29, 2013			September 29, 2012
Total assets:
AMER	$	429,542		$	400,643
APAC	827,413			771,781
EMEA	106,467			88,420
Corporate	81,538			147,355
	$	1,444,960		$	1,408,199

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Inventories (Tables)

9 Months Ended

Jun. 29, 2013

Inventory, Net [Abstract]

Schedule Of Inventories

The major classes of inventories, net of applicable lower of cost or market write-downs, were as follows (in thousands):

	June 29, 2013		September 29, 2012
Raw materials	$	310,832	$	337,657
Work-in-process	55,229		47,182
Finished goods	73,522		72,852
	$	439,583	$	457,691

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New Accounting Pronouncements

9 Months Ended

Jun. 29, 2013

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

New Accounting Pronouncements

NEW ACCOUNTING PRONOUNCEMENTS

In February 2013, the Financial Accounting Standards Board (“FASB”) issued a standard that requires entities to present the changes in the components of accumulated other comprehensive income. Entities are required to present separately the amount of the change that is due to reclassifications, and the amount that is due to current period other comprehensive income. These changes may be shown before or net of tax, and displayed either on the face of the financial statements or in the footnotes. Public entities are required to comply with the standard for annual and interim periods starting with the first interim period in the fiscal period beginning after December 15, 2012. Early adoption is permitted. The Company adopted this guidance as of the second fiscal quarter of 2013 with no impact to the Company's consolidated financial position, results of operations or cash flows, as the guidance only related to the presentation of the Company's financial statement disclosures.

In January 2013, the FASB issued a clarification of its previous amendment to disclosures about offsetting assets and liabilities. The clarification stated which instruments and transactions are subject to the original amendment requiring an entity to disclose information about offsetting and related arrangements to enable users of its financial statements to understand the effects of those arrangements on its financial position. Public entities are required to apply the amendment for annual reporting periods beginning on or after January 1, 2013, and interim periods within those annual periods. An entity should provide the disclosures required by those amendments retrospectively for all comparative periods presented. This guidance will be effective for the Company's 2014 fiscal year and is not expected to have an impact on the Company's consolidated financial position, results of operations or cash flows, as the guidance only relates to the presentation of the Company's financial statement disclosures.

In June 2011, the FASB issued an amendment to comprehensive income guidance, which eliminates the option to present other comprehensive income and its components in the statement of shareholders’ equity. The Company can elect to report components of comprehensive income in either (1) a continuous statement of comprehensive income or (2) two separate but consecutive statements. This guidance is effective for financial statements issued for fiscal years, and interim periods within those years, beginning after December 15, 2011. The Company adopted this guidance as of the first fiscal quarter of 2013 with no impact to the Company's consolidated financial position, results of operations or cash flows, as the guidance only related to the presentation of the Company's financial statement disclosures.

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Document And Entity Information	9 Months Ended
	Jun. 29, 2013	Jul. 29, 2013
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 29, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Entity Registrant Name	PLEXUS CORP
Entity Central Index Key	0000785786
Current Fiscal Year End Date	--09-28
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		33,750,676

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Basis Of Presentation And Accounting Policies (Policy)

9 Months Ended

Jun. 29, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis Of Presentation

Basis of Presentation

The accompanying condensed consolidated financial statements included herein have been prepared by Plexus Corp. and its subsidiaries (together “Plexus,” the “Company,” or “we”) without audit and pursuant to the rules and regulations of the United States (“U.S.”) Securities and Exchange Commission (“SEC”). In the opinion of the Company, the accompanying condensed consolidated financial statements reflect all adjustments, which include normal recurring adjustments necessary for the fair statement of the consolidated financial position of the Company as of June 29, 2013 and September 29, 2012, and the results of operations for the three and nine months endedJune 29, 2013 and June 30, 2012, and the cash flows for the same nine month periods.

Certain information and footnote disclosures, normally included in financial statements prepared in accordance with generally accepted accounting principles, have been condensed or omitted pursuant to the SEC’s rules and regulations dealing with interim financial statements. However, the Company believes that the disclosures made in the condensed consolidated financial statements included herein are adequate to make the information presented not misleading. It is suggested that these condensed consolidated financial statements be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s 2012 Annual Report on Form 10-K.

The Company’s reportable segments consist of the “Americas” (“AMER”) segment, “Asia-Pacific” (“APAC”) segment and “Europe, Middle East, and Africa” (“EMEA”) segment. Refer to Note 10, "Business Segments," for further details on reportable segments.

Cash And Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents include highly liquid investments with original maturities of three months or less at the time of purchase and are classified as Level 1 in the fair level hierarchy described below.

Fair Value Of Financial Instruments

Fair Value of Financial Instruments

The Company holds financial instruments consisting of cash and cash equivalents, accounts receivable, accounts payable, debt, derivatives, and capital lease obligations. The carrying values of cash and cash equivalents, accounts receivable, accounts payable, derivatives, and capital lease obligations as reported in the condensed consolidated financial statements approximate fair value. Accounts receivable were 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 the Company’s long-term debt was $246.3 million and $256.8 million as of June 29, 2013 and September 29, 2012, respectively. The carrying value of the Company’s long-term debt was $250.0 million and $257.5 million for the periods ended June 29, 2013 and September 29, 2012, respectively. The Company uses quoted market prices when available or discounted cash flows to calculate the fair value of its debt. If measured at fair value in the financial statements, long-term debt (including the current portion) would be classified as Level 2 in the fair value hierarchy described below. Refer to Note 6, "Derivatives and Fair Value Measurements," for further details on derivatives.

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.

Reclassification, Policy [Policy Text Block]

Reclassifications

Certain amounts in prior year periods within financing activities on the Consolidated Statements of Cash Flows were reclassified to conform to the current year presentation.