PTC (PTC) 10-Q 8 Aug 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Jul. 01, 2017	Aug. 04, 2017
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 1, 2017
Entity Registrant Name	PTC Inc.
Entity Central Index Key	857,005
Current Fiscal Year End Date	--09-30
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		115,607,536

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 01, 2017	Sep. 30, 2016
ASSETS
Cash and cash equivalents	$ 260,695	$ 277,935
Short term marketable securities	19,277	18,695
Accounts receivable, net of allowance for doubtful accounts of $1,419 and $1,012 at July 1, 2017 and September 30, 2016, respectively	128,561	161,357
Prepaid expenses	60,507	52,819
Other current assets	140,419	131,783
Total current assets	609,459	642,589
Property and equipment, net	63,443	67,113
Goodwill	1,175,628	1,169,813
Acquired intangible assets, net	269,825	310,305
Long term marketable securities	30,912	30,921
Deferred tax assets	110,172	89,692
Other assets	32,322	35,296
Total assets	2,291,761	2,345,729
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	24,569	18,022
Accrued expenses and other current liabilities	69,574	84,141
Accrued compensation and benefits	94,575	145,633
Accrued income taxes	6,900	6,303
Deferred revenue	455,322	400,420
Total current liabilities	650,940	654,519
Long term debt	712,191	751,601
Deferred tax liabilities	22,203	13,754
Deferred revenue	9,994	13,237
Other liabilities	61,053	69,952
Total liabilities	1,456,381	1,503,063
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, $0.01 par value; 5,000 shares authorized; none issued	0	0
Common stock, $0.01 par value; 500,000 shares authorized; 115,454 and 114,968 shares issued and outstanding at July 1, 2017 and September 30, 2016, respectively	1,154	1,150
Additional paid-in capital	1,597,820	1,598,548
Accumulated deficit	(668,275)	(657,079)
Accumulated other comprehensive loss	(95,319)	(99,953)
Total stockholders’ equity	835,380	842,666
Total liabilities and stockholders’ equity	$ 2,291,761	$ 2,345,729

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Jul. 01, 2017	Sep. 30, 2016
Current assets:
Allowance for doubtful accounts	$ 1,419	$ 1,012
Stockholders’ equity:
Preferred stock, par value (in USD per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	115,454,000	114,968,000
Common stock, shares outstanding	115,454,000	114,968,000

Consolidated Statements Of Oper

Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Revenues [Abstract]
Subscription	$ 74,859	$ 31,822	$ 195,001	$ 77,657
Support	140,428	161,881	433,624	494,262
Total recurring revenue	215,287	193,703	628,625	571,919
Perpetual license	32,348	44,648	94,099	132,100
Total subscription, support and license revenue	247,635	238,351	722,724	704,019
Professional services	43,658	50,301	134,936	148,277
Total revenue	291,293	288,652	857,660	852,296
Cost of revenue:
Cost of license and subscription revenue	21,648	17,809	62,333	50,621
Cost of support revenue	23,635	21,055	69,028	63,670
Total cost of software revenue	45,283	38,864	131,361	114,291
Cost of professional services revenue	36,985	43,606	114,852	128,518
Total cost of revenue	82,268	82,470	246,213	242,809
Gross margin	209,025	206,182	611,447	609,487
Operating expenses:
Sales and marketing	93,101	94,874	271,568	264,480
Research and development	59,850	57,118	175,474	171,397
General and administrative	35,294	35,485	108,789	107,968
Amortization of acquired intangible assets	7,973	8,294	23,986	25,040
Restructuring charges	1,551	2,815	8,300	44,541
Total operating expenses	197,769	198,586	588,117	613,426
Operating income (loss)	11,256	7,596	23,330	(3,939)
Interest expense	(10,200)	(8,164)	(32,239)	(19,511)
Interest income and other expense, net	(357)	(136)	2,049	(369)
Income (loss) before income taxes	699	(704)	(6,860)	(23,819)
Provision (benefit) for income taxes	1,650	(3,777)	4,336	2,173
Net income (loss)	$ (951)	$ 3,073	$ (11,196)	$ (25,992)
Earnings(loss) per share—Basic (in USD per share)	$ (0.01)	$ 0.03	$ (0.10)	$ (0.23)
Earnings(loss) per share—Diluted (in USD per share)	$ (0.01)	$ 0.03	$ (0.10)	$ (0.23)
Weighted average shares outstanding—Basic (in shares)	115,615	114,795	115,511	114,499
Weighted average shares outstanding—Diluted (in shares)	115,615	115,698	115,511	114,499

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (951)	$ 3,073	$ (11,196)	$ (25,992)
Other comprehensive income (loss), net of tax:
Unrealized hedge gain (loss) arising during the period, net of tax of $0.3 million and $0 million in the third quarter of 2017 and 2016, respectively, and $0 million in the first nine months of 2017 and 2016, respectively	(2,298)	361	224	(3,633)
Net hedge (gain) loss reclassified into earnings, net of tax of $0 in the third quarter of 2017 and 2016, respectively, and $0.1 million and $0 million in the first nine months of 2017 and 2016, respectively	75	1,560	(777)	727
Change in unrealized gain (loss) on hedging instruments	(2,223)	1,921	(553)	(2,906)
Foreign currency translation adjustment, net of tax of $0 for each period	17,553	(5,961)	3,893	(1,219)
Unrealized gain (loss) on marketable securities	21	7	(50)	7
Amortization of net actuarial pension loss included in net income, net of tax of $0.2 million and $0.2 million in the third quarter of 2017 and 2016, respectively, and $0.7 million and $0.5 million in the first nine months of 2017 and 2016, respectively	597	417	1,687	1,220
Change in unamortized pension income (loss) during the period related to changes in foreign currency	(1,721)	413	(343)	82
Total other comprehensive income (loss)	14,227	(3,203)	4,634	(2,816)
Comprehensive income (loss)	$ 13,276	$ (130)	$ (6,562)	$ (28,808)

Consolidated Statements Of Com6

Consolidated Statements Of Comprehensive Loss (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Statement of Comprehensive Income [Abstract]
Unrealized hedge gain (loss) arising during the period, tax	$ 0.3	$ 0	$ 0	$ 0
Net hedge loss reclassified into earnings, tax	0	0	0.1	0
Foreign currency translation adjustment, tax	0	0	0	0
Amortization of net actuarial pension loss included in net income, tax	$ 0.2	$ 0.2	$ 0.7	$ 0.5

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
Cash flows from operating activities:
Net income (loss)	$ (11,196)	$ (25,992)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	64,187	64,721
Stock-based compensation	56,139	51,821
Excess tax benefits from stock-based awards	(397)	(94)
Other non-cash items, net	1,536	246
Changes in operating assets and liabilities, excluding the effects of acquisitions:
Accounts receivable	34,913	58,499
Accounts payable, accrued expenses and other current liabilities	2,594	(17,303)
Accrued compensation and benefits	(50,518)	7,442
Deferred revenue	45,985	44,592
Accrued and deferred income taxes	(17,832)	(17,470)
Other current assets and prepaid expenses	(7,317)	4,249
Other noncurrent assets and liabilities	(16,028)	(1,115)
Net cash provided by operating activities	102,066	169,596
Cash flows from investing activities:
Additions to property and equipment	(19,333)	(16,632)
Purchases of short- and long-term marketable securities	(14,173)	(44,605)
Proceeds from maturities of short- and long-term marketable securities	13,440	0
Acquisitions of businesses, net of cash acquired	(4,960)	(164,191)
Proceeds from sales of investments	15,218	0
Net cash used in investing activities	(9,808)	(225,428)
Cash flows from financing activities:
Borrowings	150,000	670,000
Repayments of borrowings under credit facility	(190,000)	(560,000)
Payments for Repurchase of Common Stock	34,994	0
Proceeds from issuance of common stock	3,978	19
Excess tax benefits from stock-based awards	397	94
Credit facility origination costs	(184)	(6,759)
Contingent consideration	(11,054)	(10,621)
Payments of withholding taxes in connection with vesting of stock-based awards	(26,244)	(20,636)
Net cash provided by (used in) financing activities	(108,101)	72,097
Effect of exchange rate changes on cash and cash equivalents	(1,397)	4,944
Net increase (decrease) in cash and cash equivalents	(17,240)	21,209
Cash and cash equivalents, beginning of period	277,935	273,417
Cash and cash equivalents, end of period	$ 260,695	$ 294,626

Basis of Presentation

Basis of Presentation	9 Months Ended
	Jul. 01, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation General The accompanying unaudited condensed consolidated financial statements include the accounts of PTC Inc. and its wholly owned subsidiaries and have been prepared by management in accordance with accounting principles generally accepted in the United States of America and in accordance with the rules and regulations of the Securities and Exchange Commission regarding interim financial reporting. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. While we believe that the disclosures presented are adequate in order to make the information not misleading, these unaudited quarterly financial statements should be read in conjunction with our annual consolidated financial statements and related notes included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2016 . In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, consisting only of those of a normal recurring nature, necessary for a fair statement of our financial position, results of operations and cash flows at the dates and for the periods indicated. Unless otherwise indicated, all references to a year mean our fiscal year, which ends on September 30. The September 30, 2016 Consolidated Balance Sheet included herein is derived from our audited consolidated financial statements. Our fiscal year ends on September 30. Our fiscal quarters end on a Saturday following a thirteen week calendar, and may result in different quarter end dates year to year. The third quarter of 2017 ended on July 1, 2017 and the third quarter of 2016 ended on July 2, 2016 . The results of operations for the three and nine months ended July 1, 2017 are not necessarily indicative of the results expected for the remainder of the fiscal year. Income Statement Presentation In previous quarters, we reported cost of revenue in two categories: 1) cost of subscription, support and license revenue and 2) cost of professional services revenue. Effective with the beginning of the third quarter of 2017, we are reporting cost of license and subscription revenue separately from cost of support revenue and are presenting cost of revenue in three categories: 1) cost of license and subscription revenue, 2) cost of support revenue, and 3) cost of professional services revenue. Costs of revenue for previous periods in the accompanying Consolidated Statements of Operations are presented on a basis consistent with the current period presentation. Recent Accounting Pronouncements Goodwill In January 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2017-04 to simplify the accounting for goodwill impairment. The guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The guidance will be applied prospectively and is effective for annual reporting periods ending December 31, 2020 and thereafter with early adoption permitted. Income Taxes In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory (“ASU 2016-16”). The purpose of ASU 2016-16 is to simplify the income tax accounting of an intra-entity transfer of an asset other than inventory and to record its effect when the transfer occurs. The guidance is effective for annual reporting periods beginning after December 15, 2017 (our fiscal 2019) including interim reporting periods within those annual reporting periods and early adoption is permitted. We are currently evaluating the impact of the new guidance on our consolidated financial statements. Cash Flows In August 2016, the FASB issued ASU 2016-15 to clarify whether the following items should be categorized as operating, investing or financing in the statement of cash flows: (i) debt prepayments and extinguishment costs, (ii) settlement of zero-coupon debt, (iii) settlement of contingent consideration, (iv) insurance proceeds, (v) settlement of corporate-owned life insurance (COLI) and bank-owned life insurance (BOLI) policies, (vi) distributions from equity method investees, (vii) beneficial interests in securitization transactions, and (viii) receipts and payments with aspects of more than one class of cash flows. The amendments in this update are effective for public business entities for fiscal years beginning after December 15, 2017 (our fiscal 2019) and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. We are currently evaluating the impact of the new guidance on our consolidated financial statements. Financial Instruments - Credit Losses In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This update introduces a current expected credit loss model for measuring expected credit losses for certain types of financial instruments held at the reporting date based on historical experience, current conditions and reasonable supportable forecasts. ASU 2016-13 replaces the current incurred loss model for measuring expected credit losses, requires expected losses on available-for-sale debt securities to be recognized through an allowance for credit losses rather than as reductions in the amortized cost of the securities, and provides for additional disclosure requirements. ASU 2016-13 is effective for interim and annual reporting periods beginning after December 15, 2019 (our fiscal 2021) with early adoption permitted for interim and annual reporting periods beginning after December 15, 2018. We are currently evaluating the impact of the new guidance on our consolidated financial statements. Stock Compensation In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. The ASU includes multiple provisions intended to simplify various aspects of the accounting for share-based payments, including accounting for income taxes, earnings per share, and forfeitures. The ASU is effective for public companies in annual periods beginning after December 15, 2016 (our fiscal 2018) and interim periods within those years. Early adoption is permitted in any interim period, with all adjustments applied as of the beginning of the fiscal year of adoption. The guidance will be adopted in the first quarter of 2018. We do not expect adoption of the guidance to have a material impact on our consolidated financial statements. Previously unrecognized excess tax benefits will increase deferred tax assets, which will be substantially offset by an increase in the valuation allowance. Leases In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which will replace the existing guidance in ASC 840, Leases. The updated standard aims to increase transparency and comparability among organizations by requiring lessees to recognize lease assets and lease liabilities on the balance sheet and to disclose important information about leasing arrangements. ASU 2016-02 is effective for annual periods beginning after December 15, 2018 (our fiscal 2020) and interim periods within those annual periods. Early adoption is permitted and modified retrospective application is required. We are currently evaluating the impact of the new guidance on our consolidated financial statements. Financial Instruments In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities, which requires equity investments to be measured at fair value with changes in fair value recognized in net income and simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. Entities may choose a practical expedient, to estimate the fair value of certain equity securities that do not have readily determinable fair values. If the practical expedient is elected, these investments would be recorded at cost, less impairment and subsequently adjusted for observable price changes. The guidance also updates certain presentation and disclosure requirements. ASU 2016-01 is effective for financial statements issued for fiscal years beginning after December 15, 2017 (our fiscal 2019) and interim periods within those fiscal years. We are currently evaluating the impact of the new guidance on our consolidated financial statements. Revenue Recognition In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers: Topic 606 (ASU 2014-09), to supersede nearly all existing revenue recognition guidance under U.S. GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. ASU 2014-09 defines a five step process to achieve this core principle and, in doing so, it is possible more judgment and estimates may be required within the revenue recognition process than required under existing U.S. GAAP including identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. In July 2015, the FASB approved a one-year delay in the effective date. ASU 2014-09 is effective for us in our first quarter of fiscal 2019 using either of two methods: (i) retrospective to each prior reporting period presented with the option to elect certain practical expedients as defined within ASU 2014-09; or (ii) retrospective with the cumulative effect of initially applying ASU 2014-09 recognized at the date of initial application and providing certain additional disclosures as defined per ASU 2014-09. Subsequently, the FASB has issued the following standards to provide additional clarification and implementation guidance on ASU 2014-09: ASU 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations; ASU 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing; and ASU 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients. We are currently evaluating the impact of these new standards on our consolidated financial statements. Debt Issuance Costs In April 2015, the FASB issued ASU No. 2015-03, Interest-Imputation of Interest (Subtopic 835-30), to simplify the required presentation of debt issuance costs. The amended guidance requires that debt issuance costs be presented in the balance sheet as a direct reduction from the carrying amount of the related debt liability rather than as an asset. It is effective for financial statements issued for fiscal years beginning after December 15, 2015 (our fiscal 2017) with early adoption permitted. The new guidance will be applied retrospectively to each prior period presented. We adopted this new guidance in our first quarter ended December 31, 2016 and applied this guidance retrospectively. As a result, the debt issuance costs of $6.5 million previously included in other long-term assets on the Consolidated Balance Sheet as of September 30, 2016 have been reclassified. Going Concern In August 2014, the FASB issued ASU No. 2014-15, "Presentation of Financial Statements - Going Concern: Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern," which requires management to evaluate whether there is substantial doubt about the entity's ability to continue as a going concern and, if so, provide certain footnote disclosures. This ASU is effective for annual periods ending after December 15, 2016, including interim reporting periods thereafter. We do not anticipate that adopting this standard will have an impact on the financial statements and are currently evaluating the potential impact to our footnote disclosures.

Deferred Revenue and Financing

Deferred Revenue and Financing Receivables	9 Months Ended
	Jul. 01, 2017
Deferred Revenue And Financing Receivables [Abstract]
Deferred Revenue and Financing Receivables	Deferred Revenue and Related Customer Receivables Deferred Revenue Deferred revenue primarily relates to software agreements billed to customers for which the subscription and support services have not yet been provided. The liability associated with performing these subscription and support services is included in deferred revenue and, if not yet paid, the related customer receivable is included in prepaid expenses and other current assets. Billed but uncollected support and subscription-related amounts included in other current assets at July 1, 2017 and September 30, 2016 were $131.1 million and $126.3 million , respectively.

Restructuring Charges

Restructuring Charges	9 Months Ended
	Jul. 01, 2017
Restructuring [Abstract]
Restructuring Charges	Restructuring Charges On October 23, 2015, we initiated a plan to restructure our workforce and consolidate select facilities in order to reduce our cost structure and to realign our investments with what we believe to be our higher growth opportunities. The actions resulted in total restructuring charges of $85.5 million , primarily associated with termination benefits associated with approximately 800 employees. In the third quarter and first nine months of 2017, we recorded charges of $1.6 million and $8.3 million , respectively, of which $1.8 million and $5.7 million is related to the closure of excess facilities, respectively. As of July 1, 2017 , this restructuring plan was substantially complete. In both the third quarter and first nine months of 2017 restructuring charges include a credit of $0.2 million related to prior restructuring actions. The following table summarizes restructuring accrual activity for the nine months ended July 1, 2017 : Employee severance and related benefits Facility closures and related costs Total (in thousands) October 1, 2016 $ 35,177 $ 1,431 $ 36,608 Charge to operations, net 2,582 5,718 8,300 Cash disbursements (33,979 ) (1,351 ) (35,330 ) Other non-cash charges — (704 ) (704 ) Foreign exchange impact (800 ) 98 (702 ) Accrual, July 1, 2017 $ 2,980 $ 5,192 $ 8,172 The following table summarizes restructuring accrual activity for the nine months ended July 2, 2016 : Employee severance and related benefits Facility closures and related costs Total (in thousands) October 1, 2015 $ 14,086 $ 1,168 $ 15,254 Charges to operations, net 44,010 531 44,541 Cash disbursements (49,059 ) (834 ) (49,893 ) Foreign exchange impact 103 (11 ) 92 Accrual, July 2, 2016 $ 9,140 $ 854 $ 9,994 Of the accrual for facility closures and related costs, as of July 1, 2017 $3.0 million is included in accrued expenses and other current liabilities and $2.2 million is included in other liabilities in the Consolidated Balance Sheets. The accrual for facility closures is net of assumed sublease income of $4.4 million . The accrual for employee severance and related benefits is included in accrued compensation and benefits in the Consolidated Balance Sheets.

Stock-based Compensation

Stock-based Compensation	9 Months Ended
	Jul. 01, 2017
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Stock-Based Compensation	Stock-based Compensation We measure the cost of employee services received in exchange for restricted stock unit (RSU) awards based on the fair value of RSU awards on the date of grant. That cost is recognized over the period during which an employee is required to provide service in exchange for the award. Our equity incentive plan provides for grants of nonqualified and incentive stock options, common stock, restricted stock, RSUs and stock appreciation rights to employees, directors, officers and consultants. We award RSUs as the principal equity incentive awards, including certain performance-based awards that are earned based on achievement of performance criteria established by the Compensation Committee of our Board of Directors. Each RSU represents the contingent right to receive one share of our common stock. Our employee stock purchase plan (ESPP), initiated in the fourth quarter of 2016, allows eligible employees to contribute up to 10% of their base salary, up to a maximum of $25,000 per year and subject to any other plan limitations, toward the purchase of our common stock at a discounted price. The purchase price of the shares on each purchase date is equal to 85% of the lower of the fair market value of our common stock on the first and last trading days of each offering period. The ESPP is qualified under Section 423 of the Internal Revenue Code. We estimate the fair value of each purchase right under the ESPP on the date of grant using the Black-Scholes option valuation model and use the straight-line attribution approach to record the expense over the six-month offering period. Restricted stock unit activity for the nine months ended July 1, 2017 Shares Weighted Average Grant Date Fair Value (Per Share) (in thousands) Balance of outstanding restricted stock units October 1, 2016 3,776 $ 37.30 Granted 1,932 $ 51.24 Vested (1,564 ) $ 36.02 Forfeited or not earned (622 ) $ 37.51 Balance of outstanding restricted stock units July 1, 2017 3,522 $ 45.48 Restricted Stock Units Grant Period Target TSR Units (1) Performance-based RSUs (2) Service-based RSUs (3) (Number of Units in thousands) First nine months of 2017 358 325 1,249 _________________ (1) The TSR units were granted to our executive officers pursuant to the terms described below. (2) The performance-based RSUs were granted to our executive officers and are eligible to vest based on the achievement of performance criteria for fiscal 2017 established by the Compensation Committee at the time of grant. Shares not earned will be forfeited. The shares earned will vest in three substantially equal installments on November 15, 2017, November 15, 2018 and November 15, 2019. (3) The service-based RSUs were granted to employees, our executive officers and our directors. All service-based RSUs will vest in three substantially equal annual installments on or about the anniversary of the date of grant. In the first nine months of 2017, we granted the target performance-based TSR units ("target RSUs") shown in the table above to our executive officers. These RSUs are eligible to vest based upon our total shareholder return relative to a peer group (the “TSR units”), measured annually over a three year period. The number of TSR units to vest over the three year period will be determined based on the performance of PTC stock relative to the stock performance of an index of PTC peer companies established as of the grant date, as determined at the end of three measurement periods ending on September 30, 2017, 2018 and 2019, respectively. The shares earned for each period will vest on November 15 following each measurement period, up to a maximum of two times the number of target RSUs (up to a maximum of 499 thousand shares). No vesting will occur in a period unless an annual threshold requirement is achieved. The employee, subject to certain retirement provisions, must remain employed by PTC through the applicable vest date for any RSUs to vest, but in no event will any RSUs vest if the performance criteria are not achieved. If the return to PTC shareholders is negative but still meets or exceeds the peer group indexed return, a maximum of 100% of the target RSUs will vest for the measurement period. TSR units not earned in either of the first two measurement periods are eligible to be earned in the third measurement period. The weighted average fair value of the TSR units was $68.02 per target RSU on the grant date. The fair value of the TSR units was determined using a Monte Carlo simulation model, a generally accepted statistical technique used to simulate a range of possible future stock prices for PTC and the peer group. The method uses a risk-neutral framework to model future stock price movements based upon the risk-free rate of return, the volatility of each entity, and the pairwise correlations of each entity being modeled. The fair value for each simulation is the product of the payout percentage determined by PTC’s TSR rank against the peer group, the projected price of PTC stock, and a discount factor based on the risk-free rate. The significant assumptions used in the Monte Carlo simulation model were as follows: Average volatility of peer group 29.3 % Risk-free interest rate 0.99 % Dividend yield — % Compensation expense recorded for our stock-based awards was classified in our Consolidated Statements of Operations as follows: Three months ended Nine months ended July 1, July 2, July 1, July 2, (in thousands) Cost of license and subscription revenue $ 347 $ 195 $ 954 $ 552 Cost of support revenue 1,139 963 3,638 3,611 Cost of professional services revenue 1,505 1,342 4,500 4,072 Sales and marketing 3,296 3,195 11,047 11,254 Research and development 2,805 2,531 9,753 7,578 General and administrative 7,482 5,570 26,247 24,754 Total stock-based compensation expense $ 16,574 $ 13,796 $ 56,139 $ 51,821 Stock-based compensation expense in the third quarter and first nine months of 2017 includes $0.9 million and $2.2 million , respectively, related to the ESPP. Stock-based compensation expense in the first quarter of 2016 included $10 million related to modifications of certain performance-based RSUs previously granted under our long-term incentive programs.

Earnings per Share (EPS) and Co

Earnings per Share (EPS) and Common Stock	9 Months Ended
	Jul. 01, 2017
Earnings Per Share and Common Stock
Earnings(loss) per Share (EPS) and Common Stock	Earnings per Share (EPS) and Common Stock EPS Basic EPS is calculated by dividing net income by the weighted average number of shares outstanding during the period. Diluted EPS is calculated by dividing net income by the weighted average number of shares outstanding plus the dilutive effect, if any, of outstanding RSUs using the treasury stock method. The calculation of the dilutive effect of outstanding equity awards under the treasury stock method includes consideration of unrecognized compensation expense and any tax benefits as additional proceeds. Three months ended Nine months ended Calculation of Basic and Diluted EPS July 1, July 2, July 1, July 2, (in thousands, except per share data) Net income (loss) $ (951 ) $ 3,073 $ (11,196 ) $ (25,992 ) Weighted average shares outstanding—Basic 115,615 114,795 115,511 114,499 Dilutive effect of restricted stock units — 903 — — Weighted average shares outstanding—Diluted 115,615 115,698 115,511 114,499 Earnings (loss) per share—Basic $ (0.01 ) $ 0.03 $ (0.10 ) $ (0.23 ) Earnings (loss) per share—Diluted $ (0.01 ) $ 0.03 $ (0.10 ) $ (0.23 ) For the nine months ended July 1, 2017 and July 2, 2016 the diluted net loss per share is the same as the basic net loss per share as the effects of our potential common stock equivalents are antidilutive. Total antidilutive shares were 2.0 million and 1.7 million for the nine months ended July 1, 2017 and July 2, 2016 , respectively. Common Stock Repurchases Our Articles of Organization authorize us to issue up to 500 million shares of our common stock. Our Board of Directors periodically authorizes the repurchase of shares of our common stock. On August 4, 2014, our Board of Directors authorized us to repurchase up to $600 million of our common stock through September 30, 2017. We have repurchased $224.9 million of our common stock under this authorization. In the third quarter and first nine months of 2017, we repurchased $35 million of our common stock. All shares of our common stock repurchased are automatically restored to the status of authorized and unissued.

Acquisitions

Acquisitions	9 Months Ended
	Jul. 01, 2017
Business Combinations [Abstract]
Acquisitions	Acquisitions Acquisition-related costs were $0.3 million and $1.0 million for the third quarter and first nine months of 2017, respectively and $0.9 million and $3.2 million for the third quarter and first nine months of 2016, respectively. Acquisition-related costs include direct costs of potential and completed acquisitions (e.g., investment banker fees and professional fees, including legal and valuation services) and expenses related to acquisition integration activities (e.g., professional fees and severance). In addition, subsequent adjustments to our initial estimated amount of contingent consideration associated with specific acquisitions are included within acquisition-related charges. These costs are classified in general and administrative expenses in the accompanying Consolidated Statements of Operations. Kepware On January 12, 2016, we acquired all of the ownership interest in Kepware, Inc. for $99.4 million in cash (net of cash acquired of $0.6 million ) and $16.9 million representing the fair value of contingent consideration payable upon achievement of targets described below. We borrowed $100.0 million under our existing credit facility in January 2016 to fund the acquisition. The results of operations of Kepware have been included in our consolidated financial statements beginning on the acquisition date. Our results of operations prior to this acquisition, if presented on a pro forma basis, would not differ materially from our reported results. The acquisition of Kepware has been accounted for as a business combination. Assets acquired and liabilities assumed were recorded at their estimated fair values as of the acquisition date. The fair values of intangible assets were based on valuations using an income approach, with estimates and assumptions provided by management of Kepware and PTC. The process for estimating the fair values of identifiable intangible assets and the contingent consideration liability requires the use of significant estimates and assumptions, including estimating future cash flows and developing appropriate discount rates. The excess of the purchase price over the tangible assets, identifiable intangible assets and assumed liabilities was recorded as goodwill. The former shareholders of Kepware are eligible to receive additional consideration of up to $18.0 million , which is contingent on the achievement of certain financial performance, product integration and business integration targets within 24 months from April 3, 2016 to April 2, 2018. If such targets are achieved within the defined 12 month, 18 month and 24 month earn-out periods, the consideration corresponding to each target will be earned and payable in cash. All of the $9.6 million achievable contingent consideration in 2017 has been earned and paid. The remainder, if subsequently earned, will become payable in 2018. In connection with accounting for the business combination, we recorded a liability of $16.9 million representing the fair value of the contingent consideration. The liability was valued using a discounted cash flow method and a probability weighted estimate of achievement of the targets. The estimated undiscounted range of outcomes for the contingent consideration is $16.9 million to $18.0 million . We assess the probability that the targets will be met and at what level each reporting period. Subsequent changes in the estimated fair value of the liability are reflected in earnings until the liability is fully settled. As of July 1, 2017 , our estimate of the liability was $7.9 million , after a $1.8 million payment made in December 2016 and $7.8 million payment made in May 2017. The purchase price allocation resulted in $77.1 million of goodwill, which will be deductible for income tax purposes, and intangible assets of $34.5 million . Intangible assets include purchased software of $28.7 million , customer relationships of $5.2 million and trademarks of $0.6 million , which are being amortized over weighted average useful lives of 10 years, 10 years and 6 years, respectively, based upon when the economic benefits related to such assets are expected to be realized. The resulting amount of goodwill reflects our expectations of the following benefits: 1) Kepware’s protocol translators and connectivity platform strengthen the ThingWorx technology platform and accelerate our entry into the factory setting and Industrial IoT (IIoT); 2) cross-selling opportunities for our integrated technology platforms in the critical infrastructure markets to drive revenue growth; and 3) Kepware’s 20 years of manufacturing experience strengthens our manufacturing talent and domain expertise and provides support for our manufacturing strategy initiatives. Vuforia On November 3, 2015, pursuant to an Asset Purchase Agreement, PTC acquired the Vuforia business from Qualcomm Connected Experiences, Inc., a subsidiary of Qualcomm Incorporated, for $64.8 million in cash (net of cash acquired of $4.5 million ). We borrowed $50 million under our credit facility to finance this acquisition. At the time of the acquisition, Vuforia had approximately 80 employees and historical annualized revenues were not material. The acquisition of Vuforia has been accounted for as a business combination. Assets acquired and liabilities assumed have been recorded at their estimated fair values as of the acquisition date. The fair values of intangible assets were based on valuations using a cost approach which requires the use of significant estimates and assumptions, including estimating costs to reproduce an asset. The excess of the purchase price over the tangible assets, identifiable intangible assets and assumed liabilities was recorded as goodwill. The purchase price allocation resulted in $23.3 million of goodwill, $41.2 million of technology and $4.7 million of net tangible assets. The acquired technology is being amortized over a useful life of 6 years. All of the acquired goodwill was deductible for income tax purposes. The resulting amount of goodwill reflects the value of the synergies created by integrating Vuforia’s augmented technology platform into IoT solutions.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Jul. 01, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets We have three operating and reportable segments: (1) Solutions Group, (2) IoT Group and (3) Professional Services. We assess goodwill for impairment at the reporting unit level. Our reporting units are determined based on the components of our operating segments that constitute a business for which discrete financial information is available and for which operating results are regularly reviewed by segment management. Our reporting units are the same as our operating segments. As of July 1, 2017 , goodwill and acquired intangible assets in the aggregate attributable to our Solutions Group, IoT Group and Professional Services segment were $1,177.9 million , $237.0 million and $30.6 million , respectively. As of September 30, 2016 , goodwill and acquired intangible assets in the aggregate attributable to our Solutions Group, IoT Group and Professional Services segment were $1,196.6 million , $252.8 million and $30.7 million , respectively. Acquired intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying value of the asset may not be recoverable. We evaluate goodwill for impairment in the third quarter of our fiscal year, or on an interim basis if an event occurs or circumstances change that would, more likely than not, reduce the fair value of a reporting segment below its carrying value. Factors that could trigger an impairment review include significant under-performance relative to historical or projected future operating results, significant changes in our use of the acquired assets or the strategy for our overall business, significant negative industry or economic trends, a significant decline in our stock price for a sustained period and a reduction of our market capitalization relative to net book value. We completed our annual goodwill impairment review as of July 1, 2017 based on a qualitative assessment. Our qualitative assessment included company specific (financial performance and long-range plans), industry, and macroeconomic factors, and consideration of the fair value of each reporting unit, which was approximately double its carrying value or higher at July 2, 2106, the last valuation date. Based on our qualitative assessment, we believe it is more likely than not that the fair values of our reporting units exceed their carrying values and no further impairment testing is required. Goodwill and acquired intangible assets consisted of the following: July 1, 2017 September 30, 2016 Gross Carrying Amount Accumulated Amortization Net Book Value Gross Carrying Amount Accumulated Amortization Net Book Value (in thousands) Goodwill (not amortized) $ 1,175,628 $ 1,169,813 Intangible assets with finite lives (amortized) (1): Purchased software $ 358,434 $ 219,258 $ 139,176 $ 354,595 $ 199,192 $ 155,403 Capitalized software 22,877 22,877 — 22,877 22,877 — Customer lists and relationships 356,520 231,006 125,514 355,698 206,515 149,183 Trademarks and trade names 19,027 13,892 5,135 19,007 13,323 5,684 Other 3,979 3,979 — 3,955 3,920 35 $ 760,837 $ 491,012 $ 269,825 $ 756,132 $ 445,827 $ 310,305 Total goodwill and acquired intangible assets $ 1,445,453 $ 1,480,118 (1) The weighted average useful lives of purchased software, customer lists and relationships, and trademarks and trade names with a remaining net book value are 9 years, 10 years, and 10 years, respectively. Goodwill Changes in goodwill presented by reportable segments were as follows: Solutions Group IoT Group Professional Services Total (in thousands) Balance, October 1, 2016 $ 1,050,150 $ 90,065 $ 29,598 $ 1,169,813 Acquisition 2,847 — — 2,847 Foreign currency translation adjustment 2,664 228 76 2,968 Balance, July 1, 2017 $ 1,055,661 $ 90,293 $ 29,674 $ 1,175,628 Amortization of Intangible Assets The aggregate amortization expense for intangible assets with finite lives was classified in our Consolidated Statements of Operations as follows: Three months ended Nine months ended July 1, July 2, July 1, July 2, (in thousands) Amortization of acquired intangible assets $ 7,973 $ 8,294 $ 23,986 $ 25,040 Cost of license and subscription revenue 6,517 6,383 19,294 18,235 Total amortization expense $ 14,490 $ 14,677 $ 43,280 $ 43,275

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Jul. 01, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required to be recorded at fair value, we consider the principal or most advantageous market in which we would transact and consider assumptions that market participants would use when pricing the asset or liability, such as inherent risk, transfer restrictions, and risk of nonperformance. Generally accepted accounting principles prescribe a fair value hierarchy that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Three levels of inputs that may be used to measure fair value: • Level 1: quoted prices (unadjusted) in active markets for identical assets or liabilities; • Level 2: inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices in active markets for similar assets or liabilities, quoted prices for identical or similar assets or liabilities 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 assets or liabilities; or • Level 3: unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Money market funds, time deposits and corporate notes/bonds are classified within Level 1 of the fair value hierarchy because they are valued based on quoted market prices in active markets. Certificates of deposit, commercial paper and certain U.S. government agency securities are classified within Level 2 of the fair value hierarchy. These instruments are valued based on quoted prices in markets that are not active or based on other observable inputs consisting of market yields, reported trades and broker/dealer quotes. The principal market in which we execute our foreign currency contracts is the institutional market in an over-the-counter environment with a relatively high level of price transparency. The market participants usually are large financial institutions. Our foreign currency contracts’ valuation inputs are based on quoted prices and quoted pricing intervals from public data sources and do not involve management judgment. These contracts are typically classified within Level 2 of the fair value hierarchy. The fair value of our contingent consideration arrangements is determined based on our evaluation as to the probability and amount of any earn-out that will be achieved based on expected future performances by the acquired entities. These arrangements are classified within Level 3 of the fair value hierarchy. Our significant financial assets and liabilities measured at fair value on a recurring basis as of July 1, 2017 and September 30, 2016 were as follows: July 1, 2017 Level 1 Level 2 Level 3 Total (in thousands) Financial assets: Cash equivalents $ 60,118 $ — $ — $ 60,118 Marketable securities Certificates of deposit — 441 — 441 Corporate notes/bonds 47,354 — — 47,354 U.S. government agency securities — 2,394 — 2,394 Forward contracts — 4,802 — 4,802 $ 107,472 $ 7,637 $ — $ 115,109 Financial liabilities: Contingent consideration related to acquisitions $ — $ — $ 7,862 $ 7,862 Forward contracts — 4,525 — 4,525 $ — $ 4,525 $ 7,862 $ 12,387 September 30, 2016 Level 1 Level 2 Level 3 Total (in thousands) Financial assets: Cash equivalents $ 60,139 $ — $ — $ 60,139 Marketable securities Certificates of deposit — 681 — 681 Commercial paper — 11,925 — 11,925 Corporate notes/bonds 34,601 — — 34,601 U.S. government agency securities — 2,409 — 2,409 Forward contracts — 260 — 260 $ 94,740 $ 15,275 $ — $ 110,015 Financial liabilities: Contingent consideration related to acquisitions $ — $ — $ 19,570 $ 19,570 Forward contracts — 3,170 — 3,170 $ — $ 3,170 $ 19,570 $ 22,740 Changes in the fair value of Level 3 contingent consideration liability associated with our acquisitions of ColdLight and Kepware were as follows: Contingent Consideration (in thousands) ColdLight Kepware Total Balance, October 1, 2016 $ 2,500 $ 17,070 $ 19,570 Change in present value of contingent consideration — 392 392 Payment of contingent consideration (2,500 ) (9,600 ) (12,100 ) Balance, July 1, 2017 $ — $ 7,862 $ 7,862 Contingent Consideration (in thousands) ThingWorx ColdLight Kepware Total Balance, October 1, 2015 $ 9,000 $ 4,000 $ — $ 13,000 Addition to contingent consideration — — 16,900 16,900 Change in present value of contingent consideration — 1,000 97 1,097 Payment of contingent consideration (9,000 ) (2,500 ) — (11,500 ) Balance, July 2, 2016 $ — $ 2,500 $ 16,997 $ 19,497 In the Consolidated Balance Sheet as of July 1, 2017 , $7.9 million of the contingent consideration liability is included in accrued expenses and other current liabilities. Of the $12.1 million payments in the first nine months of 2017, $11.1 million represents the fair value of the liabilities recorded at the acquisition date and is included in financing activities in the Consolidated Statements of Cash Flows. Of the $11.5 million payments in the first nine months of 2016, $10.6 million represents the fair value of the liabilities recorded at the acquisition date and is included in financing activities in the Consolidated Statements of Cash Flows.

Marketable Securities

Marketable Securities	9 Months Ended
	Jul. 01, 2017
Marketable Securities [Abstract]
Marketable Securities	Marketable Securities The amortized cost and fair value of marketable securities as of July 1, 2017 and September 30, 2016 were as follows: July 1, 2017 Amortized cost Gross unrealized gains Gross unrealized losses Fair value (in thousands) Certificates of deposit $ 441 $ — $ — $ 441 Corporate notes/bonds 47,519 — (165 ) 47,354 US government agency securities 2,401 — (7 ) 2,394 $ 50,361 $ — $ (172 ) $ 50,189 September 30, 2016 Amortized cost Gross unrealized gains Gross unrealized losses Fair value (in thousands) Certificates of deposit $ 681 $ — $ — $ 681 Commercial paper 11,945 — (20 ) 11,925 Corporate notes/bonds 34,701 — (100 ) 34,601 US government agency securities 2,411 — (2 ) 2,409 $ 49,738 $ — $ (122 ) $ 49,616 Our investment portfolio consists of certificates of deposit, commercial paper, corporate notes/bonds and government securities that have a maximum maturity of three years. The longer the duration of these securities, the more susceptible they are to changes in market interest rates and bond yields. All unrealized losses are due to changes in market interest rates, bond yields and/or credit ratings. The following table presents our available-for-sale marketable securities by contractual maturity date as of July 1, 2017 and September 30, 2016 . July 1, 2017 September 30, 2016 Amortized cost Fair value Amortized cost Fair value (in thousands) (in thousands) Due in one year or less $ 19,129 $ 19,095 $ 18,585 $ 18,549 Due after one year through three years 31,232 31,094 31,153 31,067 $ 50,361 $ 50,189 $ 49,738 $ 49,616

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Jul. 01, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Our earnings and cash flows are subject to fluctuations due to changes in foreign currency exchange rates. Our most significant foreign currency exposures relate to Western European countries, Japan, China and Canada. Our foreign currency risk management strategy is principally designed to mitigate the future potential financial impact of changes in the U.S. Dollar value of anticipated transactions and balances denominated in foreign currency, resulting from changes in foreign currency exchange rates. We enter into derivative transactions, specifically foreign currency forward contracts, to manage the exposures to foreign currency exchange risk to reduce earnings volatility. We do not enter into derivatives transactions for trading or speculative purposes. Non-Designated Hedges We hedge our net foreign currency monetary assets and liabilities primarily resulting from foreign currency denominated receivables and payables with foreign exchange forward contracts to reduce the risk that our earnings and cash flows will be adversely affected by changes in foreign currency exchange rates. These contracts have maturities of up to approximately three months. Generally, we do not designate these foreign currency forward contracts as hedges for accounting purposes and changes in the fair value of these instruments are recognized immediately in earnings. Because we enter into forward contracts only as an economic hedge, any gain or loss on the underlying foreign-denominated balance would be offset by the loss or gain on the forward contract. Gains and losses on forward contracts and foreign denominated receivables and payables are included in interest income and other expense, net. As of July 1, 2017 and September 30, 2016 , we had outstanding forward contracts with notional amounts equivalent to the following: Currency Hedged July 1, September 30, (in thousands) Canadian / U.S. Dollar $ 8,488 $ 14,685 Swiss Franc / Euro 7,374 730 Chinese Yuan offshore / Euro 10,303 — Euro / U.S. Dollar 227,898 174,120 Japanese Yen / Euro 11,025 32,782 Israeli Shekel / U.S. Dollar 8,116 7,271 Japanese Yen / U.S. Dollar 2,718 6,716 Swedish Krona / U.S. Dollar 6,410 3,852 Danish Krona / U.S. Dollar 5,279 1,183 All other 7,018 8,195 Total $ 294,629 $ 249,534 The following table shows the effect of our non-designated hedges in the Consolidated Statements of Operations for the three and nine months ended July 1, 2017 and July 2, 2016 : Derivatives Not Designated as Hedging Instruments Location of Gain or (Loss) Recognized in Income Net realized and unrealized gain or (loss) (excluding the underlying foreign currency exposure being hedged) Three months ended Nine months ended July 1, July 2, July 1, July 2, (in thousands) Forward Contracts Interest income and other expense, net $ 6,669 $ (1,059 ) $ (1,422 ) $ (1,645 ) In the three and nine months ended July 1, 2017 , foreign currency losses, net were 0.7 million and 3.2 million , respectively. In the three and nine months ended July 2, 2016 , foreign currency losses, net were 0.3 million and 1.3 million , respectively. Cash Flow Hedges Our foreign exchange risk management program objective is to identify foreign exchange exposures and implement appropriate hedging strategies to minimize earnings fluctuations resulting from foreign exchange rate movements. We designate certain foreign exchange forward contracts as cash flow hedges of Euro, Yen and SEK denominated intercompany forecasted revenue transactions (supported by third party sales). All foreign exchange forward contracts are carried at fair value on the Consolidated Balance Sheets and the maximum duration of foreign exchange forward contracts is 15 months. Cash flow hedge relationships are designated at inception, and effectiveness is assessed prospectively and retrospectively using regression analysis on a monthly basis. As the forward contracts are highly effective in offsetting changes to future cash flows on the hedged transactions, we record the effective portion of changes in these cash flow hedges in accumulated other comprehensive income and subsequently reclassify it into earnings in the period during which the hedged transactions are recognized in earnings. Changes in the fair value of foreign exchange forward contracts due to changes in time value are included in the assessment of effectiveness. Our derivatives are not subject to any credit contingent features. We manage credit risk with counterparties by trading among several counterparties and we review our counterparties’ credit at least quarterly. As of July 1, 2017 and September 30, 2016 , we had outstanding forward contracts designated as cash flow hedges with notional amounts equivalent to the following: Currency Hedged July 1, September 30, (in thousands) Euro / U.S. Dollar $ 109,702 $ 26,181 Japanese Yen / U.S. Dollar 16,273 8,800 SEK / U.S. Dollar 3,672 4,078 Total $ 129,647 $ 39,059 The following table shows the effect of our derivative instruments designated as cash flow hedges in the Consolidated Statements of Operations for the three and nine months ended July 1, 2017 and July 2, 2016 (in thousands): Derivatives Designated as Hedging Instruments Gain or (Loss) Recognized in OCI-Effective Portion Location of Gain or (Loss) Reclassified from OCI into Income-Effective Portion Gain or (Loss) Reclassified from OCI into Income-Effective Portion Location of Gain or (Loss) Recognized-Ineffective Portion Gain or (Loss) Recognized-Ineffective Portion Three months ended Three months ended Three months ended July 1, July 2, July 1, July 2, July 1, July 2, Forward Contracts $ (2,627 ) $ 361 Subscription, support and license revenue $ (86 ) $ (1,560 ) Interest income and other expense, net $ (29 ) $ 9 Nine months ended Nine months ended Nine months ended July 1, July 2, July 1, July 2, July 1, July 2, Forward Contracts $ 256 $ (3,633 ) Subscription, support and license revenue $ 888 $ (727 ) Interest income and other expense, net $ (23 ) $ (28 ) As of July 1, 2017 , we estimated that all amounts reported in accumulated other comprehensive income will be reclassified to income within the next twelve months. In the event that an underlying forecast transaction does not occur, or it becomes probable that it will not occur, the related hedge gains and losses on the cash flow hedge would be immediately reclassified to interest income and other expense, net on the Consolidated Statements of Operations. For the three and nine months ended July 1, 2017 and July 2, 2016 , there were no such gains or losses. The following table shows our derivative instruments measured at gross fair value as reflected in the Consolidated Balance Sheets: Fair Value of Derivatives Designated As Hedging Instruments Fair Value of Derivatives Not Designated As Hedging Instruments July 1, September 30, July 1, September 30, (in thousands) (in thousands) Derivative assets (1): Forward Contracts $ 226 $ 44 $ 4,576 $ 216 Derivative liabilities (2): Forward Contracts $ 2,310 $ 1,477 $ 2,215 $ 1,693 (1) As of July 1, 2017 and September 30, 2016, all derivative assets were recorded in other current assets in the Consolidated Balance Sheet. (2) As of July 1, 2017, $4,394 thousand current derivative liabilities are recorded in accrued expenses and other current liabilities, and $131 thousand long term derivative liabilities are recorded in other liabilities in the Consolidated Balance Sheets. As of September 30, 2016, all derivative liabilities were recorded in accrued expenses and other current liabilities in the Consolidated Balance Sheets. Offsetting Derivative Assets and Liabilities We have entered into master netting arrangements that allow net settlements under certain conditions. Although netting is permitted, it is currently our policy and practice to record all derivative assets and liabilities on a gross basis in the Consolidated Balance Sheets. The following table sets forth the offsetting of derivative assets as of July 1, 2017 : Gross Amounts Offset in the Consolidated Balance Sheets Gross Amounts Not Offset in the Consolidated Balance Sheets As of July 1, 2017 Gross Amount of Recognized Assets Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts of Assets Presented in the Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount (in thousands) Forward Contracts $ 4,802 $ — $ 4,802 $ (4,525 ) $ — $ 277 The following table sets forth the offsetting of derivative liabilities as of July 1, 2017 : Gross Amounts Offset in the Consolidated Balance Sheets Gross Amounts Not Offset in the Consolidated Balance Sheets As of July 1, 2017 Gross Amount of Recognized Liabilities Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts of Liabilities Presented in the Consolidated Balance Sheets Financial Instruments Cash Collateral Pledged Net Amount (in thousands) Forward Contracts $ 4,525 $ — $ 4,525 $ (4,525 ) $ — $ —

Segment Information

Segment Information	9 Months Ended
	Jul. 01, 2017
Segment Reporting [Abstract]
Segment Information	Segment Information We operate within a single industry segment -- computer software and related services. Operating segments as defined under GAAP are components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision-making group, in deciding how to allocate resources and in assessing performance. Our chief operating decision maker is our President and Chief Executive Officer. We have three operating and reportable segments: (1) the Solutions Group, which includes license, subscription, support and cloud services revenue for our core CAD, SLM and PLM products; (2) the IoT Group, which includes license, subscription, support and cloud services revenue for our IoT, analytics and augmented reality solutions, and (3) Professional Services, which includes consulting, implementation and training revenue. Our reported segment profit includes revenue from third party sales of our products and services, less direct controllable segment costs. Direct costs of the segments include certain costs of revenue, research and development and certain marketing costs. Costs excluded from segment margin include cost of revenue, selling expenses, corporate marketing and general and administrative costs that are incurred in support of all of our segments and are not specifically allocated to our segments for management reporting. Additionally, the segment profit does not include stock-based compensation, amortization of intangible assets, restructuring charges and certain other identified costs that we do not allocate to the segments for purposes of evaluating their operational performance. The revenue and profit attributable to our operating segments are summarized below. We do not produce asset information by reportable segment; therefore, it is not reported. Three months ended Nine months ended July 1, July 2, July 1, July 2, (in thousands) Solutions Group Revenue $ 222,431 $ 217,673 $ 654,315 $ 652,985 Direct costs 47,362 44,882 138,552 140,465 Profit 175,069 172,791 515,763 512,520 IoT Group Revenue 25,204 20,678 68,409 51,034 Direct costs 25,454 22,255 72,051 61,478 Loss (250 ) (1,577 ) (3,642 ) (10,444 ) Professional Services Revenue 43,658 50,301 134,936 148,277 Direct costs 35,588 42,393 110,681 124,832 Profit 8,070 7,908 24,255 23,445 Total segment revenue 291,293 288,652 857,660 852,296 Total segment costs 108,404 109,530 321,284 326,775 Total segment profit 182,889 179,122 536,376 525,521 Other unallocated operating expenses 170,082 168,711 504,746 484,919 Restructuring charges 1,551 2,815 8,300 44,541 Total operating income (loss) 11,256 7,596 23,330 (3,939 ) Interest expense (10,200 ) (8,164 ) (32,239 ) (19,511 ) Interest income and other expense, net (357 ) (136 ) 2,049 (369 ) Income (loss) before income taxes $ 699 $ (704 ) $ (6,860 ) $ (23,819 )

Income Taxes

Income Taxes	9 Months Ended
	Jul. 01, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes In the third quarter and first nine months of 2017, our effective tax rate was 236% on a pre-tax income of $0.7 million , and (63)% on a pre-tax loss of $6.9 million , respectively, compared to 537% on pre-tax loss of $0.7 million and (9)% on a pre-tax loss $23.8 million in the third quarter and first nine months of 2016, respectively. In the first nine months of 2017 and 2016, our effective tax rate was lower than the 35% statutory federal income tax rate due to our corporate structure in which our foreign taxes are at a net effective tax rate lower than the U.S. rate. A significant amount of our foreign earnings is generated by our subsidiaries organized in Ireland. In 2017 and 2016, the foreign rate differential predominantly relates to these Irish earnings. Our foreign rate differential in 2017 and 2016 includes the continuing rate benefit from a business realignment completed on September 30, 2014 in which intellectual property was transferred between two wholly-owned foreign subsidiaries. For the third quarter and first nine months of 2017 and 2016, this realignment resulted in tax benefits of approximately $9 million and $21 million , respectively, and $9 million and $16 million , respectively. Also, in the first nine months of 2017, we recorded a tax benefit of $1.8 million related to a favorable agreement in a foreign jurisdiction. Additionally, in the first nine months of 2016, our provision reflects a tax benefit of $2.6 million related to a retroactive extension of the U.S. research and development tax credit enacted in the first quarter of 2016. This benefit was offset by a corresponding provision to increase our U.S. valuation allowance. We have concluded, based on the weight of available evidence, that a full valuation allowance continues to be required against our U.S. net deferred tax assets as they are not more likely than not to be realized in the future. We will continue to reassess our valuation allowance requirements each financial reporting period. In the normal course of business, PTC and its subsidiaries are examined by various taxing authorities, including the Internal Revenue Service in the U.S. We regularly assess the likelihood of additional assessments by tax authorities and provide for these matters as appropriate. We are currently under audit by tax authorities in several jurisdictions. Audits by tax authorities typically involve examination of the deductibility of certain permanent items, limitations on net operating losses and tax credits. Although we believe our tax estimates are appropriate, the final determination of tax audits and any related litigation could result in material changes in our estimates. As of July 1, 2017 and September 30, 2016, we had unrecognized tax benefits of $15.3 million and $15.5 million , respectively. If all of our unrecognized tax benefits as of July 1, 2017 were to become recognizable in the future, we would record a benefit to the income tax provision of $13.4 million , which would be partially offset by an increase in the U.S. valuation allowance of $5.1 million . Although we believe our tax estimates are appropriate, the final determination of tax audits and any related litigation could result in favorable or unfavorable changes in our estimates. We believe it is reasonably possible that within the next 12 months the amount of unrecognized tax benefits related to the resolution of multi-jurisdictional tax positions could be reduced by up to $6 million as audits close and statutes of limitations expire. In the fourth quarter of 2016, we received an assessment of approximately $12 million from the tax authorities in Korea related to a tax audit. The assessment relates to various tax issues but primarily to foreign withholding taxes. We have appealed and will vigorously defend our positions. We believe that it is more likely than not that our positions will be sustained upon appeal. Accordingly, we have not recorded a tax reserve for this matter. We paid this assessment in the first quarter of 2017 and have recorded the amount in other assets, pending resolution of the appeal.

Debt

Debt	9 Months Ended
	Jul. 01, 2017
Debt Disclosure [Abstract]
Debt	Debt At July 1, 2017 and September 30, 2016 , we had the following long-term borrowing obligations: July 1, September 30, (in thousands) 6.000% Senior notes due 2024 $ 500,000 $ 500,000 Credit facility revolver 218,125 258,125 Total debt 718,125 758,125 Unamortized debt issuance costs for the Senior notes (1) (5,934 ) (6,524 ) Total debt, net of issuance costs $ 712,191 $ 751,601 Reported as Current portion of long-term debt $ — $ — Long-term debt 718,125 758,125 Total debt $ 718,125 $ 758,125 (1) Unamortized debt issuance costs related to the credit facility were $2.3 million and $4.2 million as of July 1, 2017 and September 30, 2016, respectively, and were included in other assets. Senior Notes In May 2016, we issued $500 million in aggregate principal amount of 6.0% senior, unsecured long-term debt at par value, due in 2024. We used the net proceeds from the sale of the notes to repay a portion of our outstanding revolving loan under our current credit facility. Interest is payable semi-annually on November 15 and May 15. The debt indenture includes covenants that limit our ability to, among other things, incur additional debt, grant liens on our properties or capital stock, enter into sale and leaseback transactions or asset sales, and make capital distributions. We were in compliance with all of the covenants as of July 1, 2017 . On or after May 15, 2019, we may redeem the senior notes at any time in whole or from time to time in part at specified redemption prices. In certain circumstances constituting a change of control, we would be required to make an offer to repurchase the senior notes at a purchase price equal to 101% of the aggregate principal amount of the notes, plus accrued and unpaid interest. Our ability to repurchase the senior notes in such event may be limited by law, by the indenture associated with the senior notes, by our then-available financial resources or by the terms of other agreements to which we may be party at such time. If we fail to repurchase the senior notes as required by the indenture, it would constitute an event of default under the indenture governing the senior notes which, in turn, may also constitute an event of default under other obligations. As of July 1, 2017 , the total estimated fair value of the Notes was approximately $545.0 million , which is based on quoted prices for the notes on that date. Credit Agreement In November 2015, we entered into a multi-currency credit facility with a syndicate of sixteen banks for which JPMorgan Chase Bank, N.A. acts as Administrative Agent. We use the credit facility for general corporate purposes, including acquisitions of businesses, share repurchases and working capital requirements. As of July 1, 2017 , the fair value of our credit facility approximates its book value. The credit facility initially consisted of a $1 billion revolving loan commitment, which was reduced to $900 million in June 2016 and further reduced to $600 million in March 2017 pursuant to amendments to the Credit Agreement. The March 2017 amendment also increased the maximum permissible leverage ratio, defined as consolidated total indebtedness to the consolidated trailing four quarters EBITDA, from 4.00 to 1.00 to 4.50 to 1.00. The loan commitment may be increased by an additional $500 million (in the form of revolving loans or term loans, or a combination thereof) if the existing or additional lenders are willing to make such increased commitments. The revolving loan commitment does not require amortization of principal and may be repaid in whole or in part prior to the scheduled maturity date at our option without penalty or premium. The credit facility matures on September 15, 2019, when all remaining amounts outstanding will be due and payable in full. PTC and certain eligible foreign subsidiaries are eligible borrowers under the credit facility. Any borrowings by PTC Inc. under the credit facility would be guaranteed by PTC Inc.’s material domestic subsidiaries that become parties to the subsidiary guaranty, if any. As of the filing of this Form 10-Q, there are no subsidiary guarantors of the obligations under the credit facility. Any borrowings by eligible foreign subsidiary borrowers would be guaranteed by PTC Inc. and any subsidiary guarantors. As of the filing of this Form 10-Q, no amounts under the credit facility have been borrowed by an eligible foreign subsidiary borrower. In addition, PTC and certain of its material domestic subsidiaries' owned property (including equity interests) is subject to first priority perfected liens in favor of the lenders of this credit facility. 100% of the voting equity interests of certain of PTC’s domestic subsidiaries and 65% of its material first-tier foreign subsidiaries are pledged as collateral for the obligations under the credit facility. As of July 1, 2017 , we had $218.1 million in loans outstanding under the credit facility. Loans under the credit facility bear interest at variable rates which reset every 30 to 180 days depending on the rate and period selected by PTC as described below. As of July 1, 2017 , the annual interest rate for borrowing outstanding was 2.94% . Interest rates on borrowings outstanding under the credit facility range from 1.25% to 1.75% above an adjusted LIBO rate for Euro currency borrowings or would range from 0.25% to 0.75% above the defined base rate (the greater of the Prime Rate, the FRBNY rate plus 0.5% , or an adjusted LIBO rate plus 1% ) for base rate borrowings, in each case based upon PTC’s total leverage ratio. Additionally, PTC may borrow certain foreign currencies at rates set in the same range above the respective London interbank offered interest rates for those currencies, based on PTC’s total leverage ratio. A quarterly commitment fee on the undrawn portion of the credit facility is required, ranging from 0.175% to 0.30% per annum, based upon PTC’s total leverage ratio. The credit facility limits PTC’s and its subsidiaries’ ability to, among other things: incur liens or guarantee obligations; pay dividends (other than to PTC) and make other distributions; make investments and enter into joint ventures; dispose of assets; and engage in transactions with affiliates, except on an arms-length basis. Under the credit facility, PTC and its material domestic subsidiaries may not invest cash or property in, or loan to, PTC’s foreign subsidiaries in aggregate amounts exceeding $75.0 million for any purpose and an additional $200.0 million for acquisitions of businesses. In addition, under the credit facility, PTC and its subsidiaries must maintain the following financial ratios: • a total leverage ratio, defined as consolidated total indebtedness to the consolidated trailing four quarters EBITDA, not to exceed 4.50 to 1.00 as of the last day of any fiscal quarter; • a senior secured leverage ratio, defined as senior consolidated total indebtedness (which excludes unsecured indebtedness) to the consolidated trailing four quarters EBITDA, not to exceed 3.00 to 1.00 as of the last day of any fiscal quarter; and • a fixed charge coverage ratio, defined as the ratio of consolidated trailing four quarters EBITDA less consolidated capital expenditures to consolidated fixed charges, of not less than 3.50 to 1.00 as of the last day of any fiscal quarter. As of July 1, 2017 , our total leverage ratio was 3.19 to 1.00 , our senior secured leverage ratio was 0.97 to 1.00 and our fixed charge coverage ratio was 5.08 to 1.00 and we were in compliance with all financial and operating covenants of the credit facility. Any failure to comply with the financial or operating covenants of the credit facility would prevent PTC from being able to borrow additional funds, and would constitute a default, permitting the lenders to, among other things, accelerate the amounts outstanding, including all accrued interest and unpaid fees, under the credit facility and to terminate the credit facility. A change in control of PTC, as defined in the agreement, also constitutes an event of default, permitting the lenders to accelerate the indebtedness and terminate the credit facility. Interest expense was $10.2 million and $32.2 million for the third quarter and first nine months of 2017 , respectively, and $8.2 million and $19.5 million for the third quarter and first nine months 2016 , respectively.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Jul. 01, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal and Regulatory Matters Korean Tax Audit In July 2016, we received an assessment of approximately $12 million from the tax authorities in Korea related to an ongoing tax audit. See Note 12. Income Taxes for additional information. Legal Proceedings On March 7, 2016, a putative class action lawsuit captioned Matthew Crandall v. PTC Inc. et al ., No. 1:16-cv-10471, was filed against us and certain of our current and former officers and directors in the U.S. District Court for the District of Massachusetts, ostensibly on behalf of purchasers of our stock during the period November 24, 2011 through July 29, 2015. The lawsuit, which sought unspecified damages, interest, attorneys’ fees and costs, alleges (among other things) that, during that period, PTC’s public disclosures concerning investigations by the U.S. Securities and Exchange Commission and the U.S. Department of Justice into U.S. Foreign Corrupt Practices Act matters in China (the "China Investigation") were false and/or misleading. The parties settled the lawsuit for an amount that is not material to our results of operations. The associated liability was accrued in our fiscal 2016 results and was paid into escrow in the third quarter of 2017. The settlement received final court approval on July 14, 2017 and all claims against PTC and the other defendants have been dismissed with prejudice. We are subject to various other legal proceedings and claims that arise in the ordinary course of business. We do not believe that resolving the legal proceedings and claims that we are currently subject to will have a material adverse impact on our financial condition, results of operations or cash flows. However, the results of legal proceedings cannot be predicted with certainty. Should any of these legal proceedings and claims be resolved against us, the operating results for a particular reporting period could be adversely affected. Accruals With respect to legal proceedings and claims, we record an accrual for a contingency when it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. For legal proceedings and claims for which the likelihood that a liability has been incurred is more than remote but less than probable, we estimate the range of possible outcomes. As of July 1, 2017 , we had a legal proceedings and claims accrual of $0.6 million . Accounts Receivable Accounts receivable as of July 1, 2017 includes an amount invoiced under a multi-year contract for which the period of performance, and related revenue recognized, has spanned a number of years (with no revenue recognized in either the second or third quarter of 2017). The invoiced amount is being disputed by the customer. We intend to vigorously pursue collection of the full invoiced amount. If we are unsuccessful in collecting the full invoiced amount, there could be a write-down of accounts receivable and professional services revenue, which could range from $0 to $17.3 million . Guarantees and Indemnification Obligations We enter into standard indemnification agreements in the ordinary course of our business. Pursuant to such agreements with our business partners or customers, we indemnify, hold harmless, and agree to reimburse the indemnified party for losses suffered or incurred by the indemnified party, generally in connection with patent, copyright or other intellectual property infringement claims by any third party with respect to our products, as well as claims relating to property damage or personal injury resulting from the performance of services by us or our subcontractors. The maximum potential amount of future payments we could be required to make under these indemnification agreements is unlimited. Historically, our costs to defend lawsuits or settle claims relating to such indemnity agreements have been minimal and accordingly we believe the estimated fair value of liabilities under these agreements is immaterial. We warrant that our software products will perform in all material respects in accordance with our standard published specifications in effect at the time of delivery of the licensed products for a specified period of time. Additionally, we generally warrant that our consulting services will be performed consistent with generally accepted industry standards. In most cases, liability for these warranties is capped. If necessary, we would provide for the estimated cost of product and service warranties based on specific warranty claims and claim history; however, we have not incurred significant cost under our product or services warranties. As a result, we believe the estimated fair value of these liabilities is immaterial.

Restructuring Charges (Tables)

Restructuring Charges (Tables)	9 Months Ended
	Jul. 01, 2017
Restructuring [Abstract]
Restructuring Accrual Activity	The following table summarizes restructuring accrual activity for the nine months ended July 1, 2017 : Employee severance and related benefits Facility closures and related costs Total (in thousands) October 1, 2016 $ 35,177 $ 1,431 $ 36,608 Charge to operations, net 2,582 5,718 8,300 Cash disbursements (33,979 ) (1,351 ) (35,330 ) Other non-cash charges — (704 ) (704 ) Foreign exchange impact (800 ) 98 (702 ) Accrual, July 1, 2017 $ 2,980 $ 5,192 $ 8,172 The following table summarizes restructuring accrual activity for the nine months ended July 2, 2016 : Employee severance and related benefits Facility closures and related costs Total (in thousands) October 1, 2015 $ 14,086 $ 1,168 $ 15,254 Charges to operations, net 44,010 531 44,541 Cash disbursements (49,059 ) (834 ) (49,893 ) Foreign exchange impact 103 (11 ) 92 Accrual, July 2, 2016 $ 9,140 $ 854 $ 9,994

Stock-based Compensation (Table

Stock-based Compensation (Tables)	9 Months Ended
	Jul. 01, 2017
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Schedule of Restricted Stock and Restricted Stock Unit Activity	Restricted stock unit activity for the nine months ended July 1, 2017 Shares Weighted Average Grant Date Fair Value (Per Share) (in thousands) Balance of outstanding restricted stock units October 1, 2016 3,776 $ 37.30 Granted 1,932 $ 51.24 Vested (1,564 ) $ 36.02 Forfeited or not earned (622 ) $ 37.51 Balance of outstanding restricted stock units July 1, 2017 3,522 $ 45.48
Schedule of Restricted Stock Unit Grants for the Period	Restricted Stock Units Grant Period Target TSR Units (1) Performance-based RSUs (2) Service-based RSUs (3) (Number of Units in thousands) First nine months of 2017 358 325 1,249 _________________ (1) The TSR units were granted to our executive officers pursuant to the terms described below. (2) The performance-based RSUs were granted to our executive officers and are eligible to vest based on the achievement of performance criteria for fiscal 2017 established by the Compensation Committee at the time of grant. Shares not earned will be forfeited. The shares earned will vest in three substantially equal installments on November 15, 2017, November 15, 2018 and November 15, 2019. (3) The service-based RSUs were granted to employees, our executive officers and our directors. All service-based RSUs will vest in three substantially equal annual installments on or about the anniversary of the date of grant.
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The significant assumptions used in the Monte Carlo simulation model were as follows: Average volatility of peer group 29.3 % Risk-free interest rate 0.99 % Dividend yield — %
Schedule of Classification of Compensation Expense	Compensation expense recorded for our stock-based awards was classified in our Consolidated Statements of Operations as follows: Three months ended Nine months ended July 1, July 2, July 1, July 2, (in thousands) Cost of license and subscription revenue $ 347 $ 195 $ 954 $ 552 Cost of support revenue 1,139 963 3,638 3,611 Cost of professional services revenue 1,505 1,342 4,500 4,072 Sales and marketing 3,296 3,195 11,047 11,254 Research and development 2,805 2,531 9,753 7,578 General and administrative 7,482 5,570 26,247 24,754 Total stock-based compensation expense $ 16,574 $ 13,796 $ 56,139 $ 51,821

Earnings per Share (EPS) and 24

Earnings per Share (EPS) and Common Stock (Tables)	9 Months Ended
	Jul. 01, 2017
Earnings Per Share and Common Stock
Earnings(loss) per Share Basic and Diluted	Three months ended Nine months ended Calculation of Basic and Diluted EPS July 1, July 2, July 1, July 2, (in thousands, except per share data) Net income (loss) $ (951 ) $ 3,073 $ (11,196 ) $ (25,992 ) Weighted average shares outstanding—Basic 115,615 114,795 115,511 114,499 Dilutive effect of restricted stock units — 903 — — Weighted average shares outstanding—Diluted 115,615 115,698 115,511 114,499 Earnings (loss) per share—Basic $ (0.01 ) $ 0.03 $ (0.10 ) $ (0.23 ) Earnings (loss) per share—Diluted $ (0.01 ) $ 0.03 $ (0.10 ) $ (0.23 )

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Jul. 01, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Acquired Intangible Assets	Goodwill and acquired intangible assets consisted of the following: July 1, 2017 September 30, 2016 Gross Carrying Amount Accumulated Amortization Net Book Value Gross Carrying Amount Accumulated Amortization Net Book Value (in thousands) Goodwill (not amortized) $ 1,175,628 $ 1,169,813 Intangible assets with finite lives (amortized) (1): Purchased software $ 358,434 $ 219,258 $ 139,176 $ 354,595 $ 199,192 $ 155,403 Capitalized software 22,877 22,877 — 22,877 22,877 — Customer lists and relationships 356,520 231,006 125,514 355,698 206,515 149,183 Trademarks and trade names 19,027 13,892 5,135 19,007 13,323 5,684 Other 3,979 3,979 — 3,955 3,920 35 $ 760,837 $ 491,012 $ 269,825 $ 756,132 $ 445,827 $ 310,305 Total goodwill and acquired intangible assets $ 1,445,453 $ 1,480,118 (1) The weighted average useful lives of purchased software, customer lists and relationships, and trademarks and trade names with a remaining net book value are 9 years, 10 years, and 10 years, respectively.
Schedule of Goodwill	Changes in goodwill presented by reportable segments were as follows: Solutions Group IoT Group Professional Services Total (in thousands) Balance, October 1, 2016 $ 1,050,150 $ 90,065 $ 29,598 $ 1,169,813 Acquisition 2,847 — — 2,847 Foreign currency translation adjustment 2,664 228 76 2,968 Balance, July 1, 2017 $ 1,055,661 $ 90,293 $ 29,674 $ 1,175,628
Amortization of Intangible Assets	The aggregate amortization expense for intangible assets with finite lives was classified in our Consolidated Statements of Operations as follows: Three months ended Nine months ended July 1, July 2, July 1, July 2, (in thousands) Amortization of acquired intangible assets $ 7,973 $ 8,294 $ 23,986 $ 25,040 Cost of license and subscription revenue 6,517 6,383 19,294 18,235 Total amortization expense $ 14,490 $ 14,677 $ 43,280 $ 43,275

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Jul. 01, 2017
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping	Our significant financial assets and liabilities measured at fair value on a recurring basis as of July 1, 2017 and September 30, 2016 were as follows: July 1, 2017 Level 1 Level 2 Level 3 Total (in thousands) Financial assets: Cash equivalents $ 60,118 $ — $ — $ 60,118 Marketable securities Certificates of deposit — 441 — 441 Corporate notes/bonds 47,354 — — 47,354 U.S. government agency securities — 2,394 — 2,394 Forward contracts — 4,802 — 4,802 $ 107,472 $ 7,637 $ — $ 115,109 Financial liabilities: Contingent consideration related to acquisitions $ — $ — $ 7,862 $ 7,862 Forward contracts — 4,525 — 4,525 $ — $ 4,525 $ 7,862 $ 12,387 September 30, 2016 Level 1 Level 2 Level 3 Total (in thousands) Financial assets: Cash equivalents $ 60,139 $ — $ — $ 60,139 Marketable securities Certificates of deposit — 681 — 681 Commercial paper — 11,925 — 11,925 Corporate notes/bonds 34,601 — — 34,601 U.S. government agency securities — 2,409 — 2,409 Forward contracts — 260 — 260 $ 94,740 $ 15,275 $ — $ 110,015 Financial liabilities: Contingent consideration related to acquisitions $ — $ — $ 19,570 $ 19,570 Forward contracts — 3,170 — 3,170 $ — $ 3,170 $ 19,570 $ 22,740
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	Changes in the fair value of Level 3 contingent consideration liability associated with our acquisitions of ColdLight and Kepware were as follows: Contingent Consideration (in thousands) ColdLight Kepware Total Balance, October 1, 2016 $ 2,500 $ 17,070 $ 19,570 Change in present value of contingent consideration — 392 392 Payment of contingent consideration (2,500 ) (9,600 ) (12,100 ) Balance, July 1, 2017 $ — $ 7,862 $ 7,862 Contingent Consideration (in thousands) ThingWorx ColdLight Kepware Total Balance, October 1, 2015 $ 9,000 $ 4,000 $ — $ 13,000 Addition to contingent consideration — — 16,900 16,900 Change in present value of contingent consideration — 1,000 97 1,097 Payment of contingent consideration (9,000 ) (2,500 ) — (11,500 ) Balance, July 2, 2016 $ — $ 2,500 $ 16,997 $ 19,497

Marketable Securities (Tables)

Marketable Securities (Tables)	9 Months Ended
	Jul. 01, 2017
Marketable Securities [Abstract]
Marketable Securities	The amortized cost and fair value of marketable securities as of July 1, 2017 and September 30, 2016 were as follows: July 1, 2017 Amortized cost Gross unrealized gains Gross unrealized losses Fair value (in thousands) Certificates of deposit $ 441 $ — $ — $ 441 Corporate notes/bonds 47,519 — (165 ) 47,354 US government agency securities 2,401 — (7 ) 2,394 $ 50,361 $ — $ (172 ) $ 50,189 September 30, 2016 Amortized cost Gross unrealized gains Gross unrealized losses Fair value (in thousands) Certificates of deposit $ 681 $ — $ — $ 681 Commercial paper 11,945 — (20 ) 11,925 Corporate notes/bonds 34,701 — (100 ) 34,601 US government agency securities 2,411 — (2 ) 2,409 $ 49,738 $ — $ (122 ) $ 49,616
Investments Classified by Contractual Maturity Date	The following table presents our available-for-sale marketable securities by contractual maturity date as of July 1, 2017 and September 30, 2016 . July 1, 2017 September 30, 2016 Amortized cost Fair value Amortized cost Fair value (in thousands) (in thousands) Due in one year or less $ 19,129 $ 19,095 $ 18,585 $ 18,549 Due after one year through three years 31,232 31,094 31,153 31,067 $ 50,361 $ 50,189 $ 49,738 $ 49,616

Derivative Financial Instrume28

Derivative Financial Instruments (Tables)	9 Months Ended
	Jul. 01, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Notional Amounts of Outstanding Forward Contracts	As of July 1, 2017 and September 30, 2016 , we had outstanding forward contracts with notional amounts equivalent to the following: Currency Hedged July 1, September 30, (in thousands) Canadian / U.S. Dollar $ 8,488 $ 14,685 Swiss Franc / Euro 7,374 730 Chinese Yuan offshore / Euro 10,303 — Euro / U.S. Dollar 227,898 174,120 Japanese Yen / Euro 11,025 32,782 Israeli Shekel / U.S. Dollar 8,116 7,271 Japanese Yen / U.S. Dollar 2,718 6,716 Swedish Krona / U.S. Dollar 6,410 3,852 Danish Krona / U.S. Dollar 5,279 1,183 All other 7,018 8,195 Total $ 294,629 $ 249,534 As of July 1, 2017 and September 30, 2016 , we had outstanding forward contracts designated as cash flow hedges with notional amounts equivalent to the following: Currency Hedged July 1, September 30, (in thousands) Euro / U.S. Dollar $ 109,702 $ 26,181 Japanese Yen / U.S. Dollar 16,273 8,800 SEK / U.S. Dollar 3,672 4,078 Total $ 129,647 $ 39,059
Net Gains and Losses on Foreign Currency Exposures	The following table shows the effect of our non-designated hedges in the Consolidated Statements of Operations for the three and nine months ended July 1, 2017 and July 2, 2016 : Derivatives Not Designated as Hedging Instruments Location of Gain or (Loss) Recognized in Income Net realized and unrealized gain or (loss) (excluding the underlying foreign currency exposure being hedged) Three months ended Nine months ended July 1, July 2, July 1, July 2, (in thousands) Forward Contracts Interest income and other expense, net $ 6,669 $ (1,059 ) $ (1,422 ) $ (1,645 ) In the three and nine months ended July 1, 2017 , foreign currency losses, net were 0.7 million and 3.2 million , respectively. In the three and nine months ended July 2, 2016 , foreign currency losses, net were 0.3 million and 1.3 million , respectively. The following table shows the effect of our derivative instruments designated as cash flow hedges in the Consolidated Statements of Operations for the three and nine months ended July 1, 2017 and July 2, 2016 (in thousands): Derivatives Designated as Hedging Instruments Gain or (Loss) Recognized in OCI-Effective Portion Location of Gain or (Loss) Reclassified from OCI into Income-Effective Portion Gain or (Loss) Reclassified from OCI into Income-Effective Portion Location of Gain or (Loss) Recognized-Ineffective Portion Gain or (Loss) Recognized-Ineffective Portion Three months ended Three months ended Three months ended July 1, July 2, July 1, July 2, July 1, July 2, Forward Contracts $ (2,627 ) $ 361 Subscription, support and license revenue $ (86 ) $ (1,560 ) Interest income and other expense, net $ (29 ) $ 9 Nine months ended Nine months ended Nine months ended July 1, July 2, July 1, July 2, July 1, July 2, Forward Contracts $ 256 $ (3,633 ) Subscription, support and license revenue $ 888 $ (727 ) Interest income and other expense, net $ (23 ) $ (28 )
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The following table shows our derivative instruments measured at gross fair value as reflected in the Consolidated Balance Sheets: Fair Value of Derivatives Designated As Hedging Instruments Fair Value of Derivatives Not Designated As Hedging Instruments July 1, September 30, July 1, September 30, (in thousands) (in thousands) Derivative assets (1): Forward Contracts $ 226 $ 44 $ 4,576 $ 216 Derivative liabilities (2): Forward Contracts $ 2,310 $ 1,477 $ 2,215 $ 1,693 (1) As of July 1, 2017 and September 30, 2016, all derivative assets were recorded in other current assets in the Consolidated Balance Sheet. (2) As of July 1, 2017, $4,394 thousand current derivative liabilities are recorded in accrued expenses and other current liabilities, and $131 thousand long term derivative liabilities are recorded in other liabilities in the Consolidated Balance Sheets. As of September 30, 2016, all derivative liabilities were recorded in accrued expenses and other current liabilities in the Consolidated Balance Sheets.
Offsetting Assets	The following table sets forth the offsetting of derivative assets as of July 1, 2017 : Gross Amounts Offset in the Consolidated Balance Sheets Gross Amounts Not Offset in the Consolidated Balance Sheets As of July 1, 2017 Gross Amount of Recognized Assets Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts of Assets Presented in the Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount (in thousands) Forward Contracts $ 4,802 $ — $ 4,802 $ (4,525 ) $ — $ 277
Offsetting Liabilities	The following table sets forth the offsetting of derivative liabilities as of July 1, 2017 : Gross Amounts Offset in the Consolidated Balance Sheets Gross Amounts Not Offset in the Consolidated Balance Sheets As of July 1, 2017 Gross Amount of Recognized Liabilities Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts of Liabilities Presented in the Consolidated Balance Sheets Financial Instruments Cash Collateral Pledged Net Amount (in thousands) Forward Contracts $ 4,525 $ — $ 4,525 $ (4,525 ) $ — $ —

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Jul. 01, 2017
Segment Reporting [Abstract]
Revenue and Operating Income	Three months ended Nine months ended July 1, July 2, July 1, July 2, (in thousands) Solutions Group Revenue $ 222,431 $ 217,673 $ 654,315 $ 652,985 Direct costs 47,362 44,882 138,552 140,465 Profit 175,069 172,791 515,763 512,520 IoT Group Revenue 25,204 20,678 68,409 51,034 Direct costs 25,454 22,255 72,051 61,478 Loss (250 ) (1,577 ) (3,642 ) (10,444 ) Professional Services Revenue 43,658 50,301 134,936 148,277 Direct costs 35,588 42,393 110,681 124,832 Profit 8,070 7,908 24,255 23,445 Total segment revenue 291,293 288,652 857,660 852,296 Total segment costs 108,404 109,530 321,284 326,775 Total segment profit 182,889 179,122 536,376 525,521 Other unallocated operating expenses 170,082 168,711 504,746 484,919 Restructuring charges 1,551 2,815 8,300 44,541 Total operating income (loss) 11,256 7,596 23,330 (3,939 ) Interest expense (10,200 ) (8,164 ) (32,239 ) (19,511 ) Interest income and other expense, net (357 ) (136 ) 2,049 (369 ) Income (loss) before income taxes $ 699 $ (704 ) $ (6,860 ) $ (23,819 )

Debt Debt (Tables)

Debt Debt (Tables)	9 Months Ended
	Jul. 01, 2017
Debt Disclosure [Abstract]
Schedule of Debt	At July 1, 2017 and September 30, 2016 , we had the following long-term borrowing obligations: July 1, September 30, (in thousands) 6.000% Senior notes due 2024 $ 500,000 $ 500,000 Credit facility revolver 218,125 258,125 Total debt 718,125 758,125 Unamortized debt issuance costs for the Senior notes (1) (5,934 ) (6,524 ) Total debt, net of issuance costs $ 712,191 $ 751,601 Reported as Current portion of long-term debt $ — $ — Long-term debt 718,125 758,125 Total debt $ 718,125 $ 758,125 (1) Unamortized debt issuance costs related to the credit facility were $2.3 million and $4.2 million as of July 1, 2017 and September 30, 2016, respectively, and were included in other assets.

Basis of Presentation (Details)

Basis of Presentation (Details) $ in Millions	Sep. 30, 2016USD ($)
Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unamortized Debt Issuance Expense	$ 6.5

Deferred Revenue and Financin32

Deferred Revenue and Financing Receivables (Details) - USD ($) $ in Millions	Jul. 01, 2017	Sep. 30, 2016
Other Assets
Deferred Revenue and Financing Receivables [Line Items]
Billed but uncollected support and subscription related receivable	$ 131.1	$ 126.3

Restructuring Charges (Details)

Restructuring Charges (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		20 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance			$ 36,608	$ 15,254
Charge to operations, net	$ 1,551	$ 2,815	8,300	44,541	$ 85,500
Cash disbursements			(35,330)	(49,893)
Other non-cash charges			(704)
Foreign exchange impact			(702)	92
Restructuring reserve, ending balance	8,172	9,994	8,172	9,994	8,172
Employee severance and related benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance			35,177	14,086
Charge to operations, net			2,582	44,010
Cash disbursements			(33,979)	(49,059)
Other non-cash charges			0
Foreign exchange impact			(800)	103
Restructuring reserve, ending balance	2,980	9,140	2,980	9,140	2,980
Facility closures and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance			1,431	1,168
Charge to operations, net	1,800		5,718	531
Cash disbursements			(1,351)	(834)
Other non-cash charges			(704)
Foreign exchange impact			98	(11)
Restructuring reserve, ending balance	5,192	$ 854	5,192	$ 854	$ 5,192
Q116 plan [Domain]
Restructuring Cost and Reserve [Line Items]
Charge to operations, net	$ 1,600		$ 8,300

Restructuring Charges (Narrativ

Restructuring Charges (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended		20 Months Ended
	Jul. 01, 2017USD ($)	Jul. 02, 2016USD ($)	Jul. 01, 2017USD ($)employee	Jul. 02, 2016USD ($)	Jul. 01, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)
Restructuring Cost and Reserve [Line Items]
Charge to operations, net	$ 1,551	$ 2,815	$ 8,300	$ 44,541	$ 85,500
Restructuring Reserve	8,172	9,994	8,172	9,994	8,172	$ 36,608	$ 15,254
Employee severance and related benefits [Member]
Restructuring Cost and Reserve [Line Items]
Charge to operations, net			2,582	44,010
Restructuring Reserve	2,980	9,140	2,980	9,140	2,980	35,177	14,086
Facility closures and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Charge to operations, net	1,800		5,718	531
Restructuring Reserve	5,192	$ 854	5,192	$ 854	5,192	$ 1,431	$ 1,168
Restructuring Credit [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs			$ 200
Restructuring Plan 2016 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | employee			800
Q116 plan [Domain]
Restructuring Cost and Reserve [Line Items]
Charge to operations, net	1,600		$ 8,300
Accrued Expenses and Other Current Liabilities [Member] | Facility closures and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	3,000		3,000		3,000
Other Noncurrent Liabilities [Member] | Facility closures and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	2,200		2,200		2,200
Restructuring Charges [Member] | Facility closures and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 4,400		$ 4,400		$ 4,400

Stock-based Compensation (Narra

Stock-based Compensation (Narrative) (Details)	3 Months Ended	9 Months Ended
	Jul. 01, 2017shares / unit$ / shares	Jul. 01, 2017USD ($)shares / unit$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Common Stock Issuable per Restricted Stock Unit | shares / unit	1	1
ESPP maximum contribution percentage	10.00%	10.00%
ESPP maximum contribution amount by employee | $		$ 25,000
ESPP purchase price as a % of stock price	85.00%	85.00%
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares		1,932,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares		$ 51.24
TSR Units [Member] | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Target Multiplier	2
Granted, shares		358,000	[1]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 68.02
TSR Units [Member] | Restricted Stock Units (RSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares		499,000	[1]
[1]	The TSR units were granted to our executive officers pursuant to the terms described below.

Stock-based Compensation (Sched

Stock-based Compensation (Schedule of Restricted Stock Unit Activity) (Details) - Restricted Stock Units (RSUs) shares in Thousands	9 Months Ended
	Jul. 01, 2017$ / sharesshares
Shares
Balance of outstanding restricted stock units, beginning, Shares | shares	3,776
Granted, shares | shares	1,932
Vested, Shares | shares	(1,564)
Forfeited or not earned, Shares | shares	(622)
Balance of outstanding restricted stock units, ending, Shares | shares	3,522
Weighted Average Grant Date Fair Value (Per Share)
Balance of outstanding restricted stock units, beginning (in USD per share) | $ / shares	$ 37.30
Granted (in USD per share) | $ / shares	51.24
Vested (in USD per share) | $ / shares	36.02
Forfeited or not earned (in USD per share) | $ / shares	37.51
Balance of outstanding restricted stock units, ending (in USD per share) | $ / shares	$ 45.48

Stock-based Compensation (Sch37

Stock-based Compensation (Schedule of Restricted Stock Unit Grants For The Period) (Details) - Restricted Stock Units (RSUs)	9 Months Ended
	Jul. 01, 2017installmentshares
Granted, shares	1,932,000
TSR Units [Member]
Granted, shares	358,000	[1]
Performance-Based
Number of equal annual installments | installment	3
Time-based Award [Member]
Granted, shares	1,249,000	[2]
Number of equal annual installments | installment	3
Maximum | TSR Units [Member]
Granted, shares	499,000	[1]
Maximum | Performance-Based
Granted, shares	325,000
[1]	The TSR units were granted to our executive officers pursuant to the terms described below.
[2]	The service-based RSUs were granted to employees, our executive officers and our directors. All service-based RSUs will vest in three substantially equal annual installments on or about the anniversary of the date of grant.

Stock-based Compensation (Assum

Stock-based Compensation (Assumptions used) (Details)	9 Months Ended
	Jul. 01, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Average volatility of peer group	29.30%
Risk-free interest rate	0.99%
Dividend yield	0.00%

Stock-based Compensation (Sch39

Stock-based Compensation (Schedule of Classification of Compensation Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Total stock-based compensation expense			$ 56,139	$ 51,821
License and Subscription Cost [Member]
Total stock-based compensation expense	$ 347	$ 195	954	552
Maintenance Costs [Member]
Total stock-based compensation expense	1,139	963	3,638	3,611
Cost of professional service revenue
Total stock-based compensation expense	1,505	1,342	4,500	4,072
Sales and Marketing
Total stock-based compensation expense	3,296	3,195	11,047	11,254
Research and Development
Total stock-based compensation expense	2,805	2,531	9,753	7,578
General and Administrative
Total stock-based compensation expense	7,482	5,570	26,247	24,754
Share-based Compensation Expense Total [Member]
Total stock-based compensation expense	16,574	13,796	56,139	$ 51,821
stock modification [Member]
Total stock-based compensation expense		$ 10,000
ESPP [Member]
Total stock-based compensation expense	$ 900		$ 2,200

Earnings per Share (EPS) and 40

Earnings per Share (EPS) and Common Stock (Earnings per Share Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Earnings Per Share and Common Stock
Net income (loss)	$ (951)	$ 3,073	$ (11,196)	$ (25,992)
Weighted average shares outstanding—Basic (in shares)	115,615	114,795	115,511	114,499
Dilutive effect of employee stock options, restricted shares and restricted stock units (in shares)	0	903	0	0
Weighted average shares outstanding—Diluted (in shares)	115,615	115,698	115,511	114,499
Earnings(loss) per share—Basic (in USD per share)	$ (0.01)	$ 0.03	$ (0.10)	$ (0.23)
Earnings(loss) per share—Diluted (in USD per share)	$ (0.01)	$ 0.03	$ (0.10)	$ (0.23)

Earnings per Share (EPS) and 41

Earnings per Share (EPS) and Common Stock (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended		35 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Sep. 30, 2016	Aug. 04, 2014
Earnings Per Share and Common Stock
Stock option restricted shares and restricted stock units excluded from computation of EPS, shares	2,000,000	1,700,000
Common stock, shares authorized	500,000,000		500,000,000	500,000,000
Stock Repurchase Program, Authorized Amount					$ 600,000
Payments for Repurchase of Common Stock	$ 34,994	$ 0	$ 224,900

Acquisition (Details)

Acquisition (Details) $ in Thousands	Jan. 12, 2016USD ($)	Jul. 01, 2017USD ($)	Dec. 31, 2016USD ($)	Jul. 02, 2016USD ($)	Apr. 02, 2016USD ($)	Jan. 02, 2016USD ($)	Jul. 01, 2017USD ($)	Jul. 02, 2016USD ($)	Sep. 30, 2016USD ($)	Nov. 03, 2015employee
Business Acquisition [Line Items]
Acquisition-related cost		$ 300		$ 900			$ 1,000	$ 3,200
Payments to Acquire Businesses, Net of Cash Acquired							4,960	$ 164,191
Contingent consideration related to acquisitions		7,862					7,862		$ 19,570
Acquisition							$ 2,847
Computer Software, Intangible Asset [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible asset, weighted average useful life							9 years
Customer Lists [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible asset, weighted average useful life							10 years
Line of Credit [Member]
Business Acquisition [Line Items]
Long-term portion of long term debt		218,125					$ 218,125		$ 258,125
Kepware
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	$ 99,400
Cash Acquired from Acquisition	600
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low	16,900	16,900					16,900
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		18,000					18,000
Estimated contingent consideration payment in 2017		9,600					9,600
Contingent consideration related to acquisitions		7,900					$ 7,900
Payment of contingent consideration		$ 7,800	$ 1,800
Acquisition					$ 77,100
Finite-lived Intangible Assets Acquired					34,500
Kepware | Computer Software, Intangible Asset [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired					$ 28,700
Acquired finite-lived intangible asset, weighted average useful life					10 years
Kepware | Customer Lists [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired					$ 5,200
Acquired finite-lived intangible asset, weighted average useful life					10 years
Kepware | Trademarks and Trade Names [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired					$ 600
Acquired finite-lived intangible asset, weighted average useful life					6 years
Kepware | Line of Credit [Member]
Business Acquisition [Line Items]
Long-term portion of long term debt	$ 100,000
Vuforia Acquisition [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired						$ 64,800
Cash Acquired from Acquisition						4,500
Acquisition						23,300
Business Combination, Number of Employees at Acquiree | employee										80
Business combination acquired assets and liabilities net (excluding goodwill and other intangible assets)						4,700
Vuforia Acquisition [Member] | Computer Software, Intangible Asset [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired						$ 41,200
Acquired finite-lived intangible asset, weighted average useful life						6 years
Vuforia Acquisition [Member] | Line of Credit [Member]
Business Acquisition [Line Items]
Long-term portion of long term debt						$ 50,000

Goodwill and Intangible Asset43

Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 01, 2017	Sep. 30, 2016
Acquisition	$ 2,847
Intangible Assets, Net (Including Goodwill)	1,445,453	$ 1,480,118
Solutions Group
Acquisition	2,847
Intangible Assets, Net (Including Goodwill)	1,177,900	1,196,600
IoT Group
Acquisition	0
Intangible Assets, Net (Including Goodwill)	237,000	252,800
Professional Services
Acquisition	0
Intangible Assets, Net (Including Goodwill)	$ 30,600	$ 30,700

Goodwill and Intangible Asset44

Goodwill and Intangible Assets (Goodwill and Acquired Intangible Assets) (Details) - USD ($) $ in Thousands		9 Months Ended
		Jul. 01, 2017	Sep. 30, 2016
Goodwill (not amortized), Net Book Value		$ 1,175,628	$ 1,169,813
Intangible assets with finite lives (amortized), Gross Carrying Amount	[1]	760,837	756,132
Intangible assets with finite lives (amortized), Accumulated Amortization	[1]	491,012	445,827
Intangible assets with finite lives (amortized), Net Book Value	[1]	269,825	310,305
Intangible Assets, Net (Including Goodwill)		1,445,453	1,480,118
Purchased Software
Intangible assets with finite lives (amortized), Gross Carrying Amount		358,434	354,595
Intangible assets with finite lives (amortized), Accumulated Amortization		219,258	199,192
Intangible assets with finite lives (amortized), Net Book Value	[1]	$ 139,176	155,403
Acquired finite-lived intangible asset, weighted average useful life		9 years
Capitalized Software
Intangible assets with finite lives (amortized), Gross Carrying Amount		$ 22,877	22,877
Intangible assets with finite lives (amortized), Accumulated Amortization		22,877	22,877
Intangible assets with finite lives (amortized), Net Book Value	[1]	0	0
Customer Lists and Relationships
Intangible assets with finite lives (amortized), Gross Carrying Amount		356,520	355,698
Intangible assets with finite lives (amortized), Accumulated Amortization		231,006	206,515
Intangible assets with finite lives (amortized), Net Book Value	[1]	$ 125,514	149,183
Acquired finite-lived intangible asset, weighted average useful life		10 years
Trademarks and Trade Names
Intangible assets with finite lives (amortized), Gross Carrying Amount		$ 19,027	19,007
Intangible assets with finite lives (amortized), Accumulated Amortization		13,892	13,323
Intangible assets with finite lives (amortized), Net Book Value	[1]	$ 5,135	5,684
Acquired finite-lived intangible asset, weighted average useful life		10 years
Other
Intangible assets with finite lives (amortized), Gross Carrying Amount		$ 3,979	3,955
Intangible assets with finite lives (amortized), Accumulated Amortization		3,979	3,920
Intangible assets with finite lives (amortized), Net Book Value	[1]	$ 0	$ 35
[1]	The weighted average useful lives of purchased software, customer lists and relationships, and trademarks and trade names with a remaining net book value are 9 years, 10 years, and 10 years, respectively.

Goodwill and Intangible Asset45

Goodwill and Intangible Assets (Schedule of Goodwill) (Details) $ in Thousands	9 Months Ended
	Jul. 01, 2017USD ($)
Goodwill [Line Items]
Balance, October 1, 2016	$ 1,169,813
Acquisition	2,847
Foreign currency translation adjustment	2,968
Balance, July 1, 2017	1,175,628
Solutions Group
Goodwill [Line Items]
Balance, October 1, 2016	1,050,150
Acquisition	2,847
Foreign currency translation adjustment	2,664
Balance, July 1, 2017	1,055,661
IoT Group
Goodwill [Line Items]
Balance, October 1, 2016	90,065
Acquisition	0
Foreign currency translation adjustment	228
Balance, July 1, 2017	90,293
Professional Services
Goodwill [Line Items]
Balance, October 1, 2016	29,598
Acquisition	0
Foreign currency translation adjustment	76
Balance, July 1, 2017	$ 29,674

Goodwill and Intangible Asset46

Goodwill and Intangible Assets (Amortization of Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of acquired intangible assets	$ 7,973	$ 8,294	$ 23,986	$ 25,040
Cost of license and subscription revenue	6,517	6,383	19,294	18,235
Total amortization expense	$ 14,490	$ 14,677	$ 43,280	$ 43,275

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Sep. 30, 2016
Financial assets:
Cash equivalents			$ 60,118	$ 60,139
Available-for-sale Securities			50,189	49,616
Forward contracts			4,802	260
Financial assets, fair value			115,109	110,015
Financial liabilities:
Contingent consideration related to acquisitions	$ 19,570		7,862	19,570
Forward contracts			4,525	3,170
Liabilities, Fair Value Disclosure, Recurring			12,387	22,740
Business Combination. Contingent Consideration [Roll Forward]
Balance, October 1, 2016	19,570
Addition to contingent consideration		$ 16,900
Payment of contingent consideration	(12,100)	(11,500)
Balance, July 1, 2017	7,862
Level 1 [Member]
Financial assets:
Cash equivalents			60,118	60,139
Financial assets, fair value			107,472	94,740
Financial liabilities:
Contingent consideration related to acquisitions	0		0	0
Forward contracts			0	0
Liabilities, Fair Value Disclosure, Recurring			0	0
Business Combination. Contingent Consideration [Roll Forward]
Balance, October 1, 2016	0
Balance, July 1, 2017	0
Level 2 [Member]
Financial assets:
Forward contracts			4,802	260
Financial assets, fair value			7,637	15,275
Financial liabilities:
Contingent consideration related to acquisitions	0		0	0
Forward contracts			4,525	3,170
Liabilities, Fair Value Disclosure, Recurring			4,525	3,170
Business Combination. Contingent Consideration [Roll Forward]
Balance, October 1, 2016	0
Balance, July 1, 2017	0
Level 3 [Member]
Financial liabilities:
Contingent consideration related to acquisitions	19,570	13,000	7,862	19,570
Forward contracts			0	0
Liabilities, Fair Value Disclosure, Recurring			7,862	19,570
Business Combination. Contingent Consideration [Roll Forward]
Balance, October 1, 2016	19,570	13,000
Change in present value of contingent consideration	392	1,097
Payment of contingent consideration	(12,100)	(11,500)
Balance, July 1, 2017	7,862	19,497
ThingWorx | Level 3 [Member]
Financial liabilities:
Contingent consideration related to acquisitions		9,000
Business Combination. Contingent Consideration [Roll Forward]
Balance, October 1, 2016		9,000
Addition to contingent consideration		0
Change in present value of contingent consideration		0
Payment of contingent consideration		(9,000)
Balance, July 1, 2017		0
ColdLight | Level 3 [Member]
Financial liabilities:
Contingent consideration related to acquisitions	2,500	4,000	0	2,500
Business Combination. Contingent Consideration [Roll Forward]
Balance, October 1, 2016	2,500	4,000
Addition to contingent consideration		0
Change in present value of contingent consideration	0	1,000
Payment of contingent consideration	(2,500)	(2,500)
Balance, July 1, 2017	0	2,500
Kepware
Financial liabilities:
Contingent consideration related to acquisitions	7,900		7,900
Business Combination. Contingent Consideration [Roll Forward]
Balance, July 1, 2017	7,900
Kepware | Level 3 [Member]
Financial liabilities:
Contingent consideration related to acquisitions	17,070	0	7,862	17,070
Business Combination. Contingent Consideration [Roll Forward]
Balance, October 1, 2016	17,070	0
Addition to contingent consideration		16,900
Change in present value of contingent consideration	392	97
Payment of contingent consideration	(9,600)	0
Balance, July 1, 2017	$ 7,862	$ 16,997
Certificates of deposit
Financial assets:
Available-for-sale Securities			441	681
Certificates of deposit | Level 2 [Member]
Financial assets:
Available-for-sale Securities			441	681
Commercial paper
Financial assets:
Available-for-sale Securities				11,925
Commercial paper | Level 2 [Member]
Financial assets:
Available-for-sale Securities				11,925
Corporate notes/bonds
Financial assets:
Available-for-sale Securities			47,354	34,601
Corporate notes/bonds | Level 1 [Member]
Financial assets:
Available-for-sale Securities			47,354	34,601
U.S. government agency securities
Financial assets:
Available-for-sale Securities			2,394	2,409
U.S. government agency securities | Level 2 [Member]
Financial assets:
Available-for-sale Securities			$ 2,394	$ 2,409

Fair Value Measurement (Narrati

Fair Value Measurement (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Sep. 30, 2016	Sep. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration related to acquisitions	$ 7,862		$ 19,570
Payment of contingent consideration	12,100	$ 11,500
Business Combination, Consideration Transferred, Liabilities Incurred	11,100	10,600
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration related to acquisitions	7,862	19,497	$ 19,570	$ 13,000
Payment of contingent consideration	12,100	$ 11,500
Fair Value, Inputs, Level 3 [Member] | Accrued Expenses and Other Current Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration related to acquisitions	$ 7,900

Marketable Securities (Details)

Marketable Securities (Details) - USD ($) $ in Thousands	Jul. 01, 2017	Sep. 30, 2016
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 50,361	$ 49,738
Available-for-sale Securities, Gross Unrealized Gain	0	0
Available-for-sale Securities, Gross Unrealized Loss	(172)	(122)
Available-for-sale Securities	50,189	49,616
Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis	19,129	18,585
Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value	19,095	18,549
Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Amortized Cost Basis	31,232	31,153
Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Fair Value	31,094	31,067
Certificates of deposit
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	441	681
Available-for-sale Securities, Gross Unrealized Gain	0	0
Available-for-sale Securities, Gross Unrealized Loss	0	0
Available-for-sale Securities	441	681
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		11,945
Available-for-sale Securities, Gross Unrealized Gain		0
Available-for-sale Securities, Gross Unrealized Loss		(20)
Available-for-sale Securities		11,925
Corporate notes/bonds
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	47,519	34,701
Available-for-sale Securities, Gross Unrealized Gain	0	0
Available-for-sale Securities, Gross Unrealized Loss	(165)	(100)
Available-for-sale Securities	47,354	34,601
U.S. government agency securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	2,401	2,411
Available-for-sale Securities, Gross Unrealized Gain	0	0
Available-for-sale Securities, Gross Unrealized Loss	(7)	(2)
Available-for-sale Securities	$ 2,394	$ 2,409

Derivative Financial Instrume50

Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Sep. 30, 2016
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ 700	$ 300	$ 3,200	$ 1,300
Forward Contracts | Other Current Liabilities [Member]
Foreign currency cash flow hedge asset at fair value	4,394		4,394
Forward Contracts | Other Current Assets [Member]
Foreign currency cash flow hedge asset at fair value	4,802		4,802
Forward Contracts | Other Assets [Member]
Foreign currency cash flow hedge asset at fair value	0		0
Forward Contracts | Other Noncurrent Liabilities [Member]
Foreign currency cash flow hedge asset at fair value	$ 131		131
Forward Contracts | Not Designated as Hedging Instrument [Member]
Derivative, Remaining Maturity	3 months
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	$ 4,576		4,576
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	$ 2,215		2,215
Forward Contracts | Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value					$ 1,693
Forward Contracts | Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value					216
Forward Contracts | Designated as Hedging Instrument [Member]
Derivative, Remaining Maturity	15 months
Foreign currency cash flow hedge asset at fair value	$ 226		226
Foreign Currency Cash Flow Hedge Liability at Fair Value	$ 2,310		$ 2,310
Forward Contracts | Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Foreign Currency Cash Flow Hedge Liability at Fair Value					1,477
Forward Contracts | Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Foreign currency cash flow hedge asset at fair value					$ 44

Derivative Financial Instrume51

Derivative Financial Instruments (Notional Amounts Of Outstanding Forward Contracts) (Details) - Forward Contracts - USD ($) $ in Thousands	Jul. 01, 2017	Sep. 30, 2016
Designated as Hedging Instrument [Member]
Notional amounts	$ 129,647	$ 39,059
Designated as Hedging Instrument [Member] | Euro / U.S. Dollar
Notional amounts	109,702	26,181
Designated as Hedging Instrument [Member] | Japanese Yen / U.S. Dollar
Notional amounts	16,273	8,800
Designated as Hedging Instrument [Member] | Swedish Krona / U.S. Dollar
Notional amounts	3,672	4,078
Not Designated as Hedging Instrument [Member]
Notional amounts	294,629	249,534
Not Designated as Hedging Instrument [Member] | Canadian / U.S. Dollar
Notional amounts	8,488	14,685
Not Designated as Hedging Instrument [Member] | Swiss Franc / Euro
Notional amounts	7,374	730
Not Designated as Hedging Instrument [Member] | Chinese Yuan offshore / Euro
Notional amounts	10,303	0
Not Designated as Hedging Instrument [Member] | Euro / U.S. Dollar
Notional amounts	227,898	174,120
Not Designated as Hedging Instrument [Member] | Japanese Yen / Euro
Notional amounts	11,025	32,782
Not Designated as Hedging Instrument [Member] | Israeli Shekel / U.S. Dollar
Notional amounts	8,116	7,271
Not Designated as Hedging Instrument [Member] | Japanese Yen / U.S. Dollar
Notional amounts	2,718	6,716
Not Designated as Hedging Instrument [Member] | Swedish Krona / U.S. Dollar
Notional amounts	6,410	3,852
Not Designated as Hedging Instrument [Member] | Denmark, Kroner
Notional amounts	5,279	1,183
Not Designated as Hedging Instrument [Member] | All other
Notional amounts	$ 7,018	$ 8,195

Derivative Financial Instrume52

Derivative Financial Instruments (Derivative Instruments and Hedging Activities Disclosures) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI-Effective Portion	$ (2,298)	$ 361	$ 224	$ (3,633)
Forward Contracts | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI-Effective Portion	(2,627)	361	256	(3,633)
Forward Contracts | Subscription Support and License Revenue [Member] [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Reclassified from OCI into Income-Effective Portion	(86)	(1,560)	888	(727)
Forward Contracts | Interest and Other Expense, Net [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized and unrealized gain or (loss) (excluding the underlying foreign currency exposure being hedged)	(6,669)	1,059	1,422	1,645
Forward Contracts | Interest and Other Expense, Net [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized-Ineffective Portion	$ (29)	$ 9	$ (23)	$ (28)

Derivative Financial Instrume53

Derivative Financial Instruments (Offsetting Assets) (Details) - USD ($) $ in Thousands	Jul. 01, 2017	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amount of Recognized Assets	$ 4,802
Gross Amounts Offset in the Consolidated Balance Sheets	0
Net Amounts of Assets Presented in the Consolidated Balance Sheets	4,802	$ 260
Gross Amounts Not Offset in the Consolidated Balance Sheets, Financial Instruments	(4,525)
Gross Amounts Not Offset in the Consolidated Balance Sheets, Cash Collateral Received	0
Net Amount	$ 277

Derivative Financial Instrume54

Derivative Financial Instruments (Offsetting Liabilities) (Details) - USD ($) $ in Thousands	Jul. 01, 2017	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amount of Recognized Liabilities	$ 4,525
Gross Amounts Offset in the Consolidated Balance Sheets	0
Net Amounts of Liabilities Presented in the Consolidated Balance Sheets	4,525	$ 3,170
Gross Amounts Not Offset in the Consolidated Balance Sheets, Financial Instruments	(4,525)
Gross Amounts Not Offset in the Consolidated Balance Sheets, Cash Collateral Pledged	0
Net Amount	$ 0

Segment Information (Revenue an

Segment Information (Revenue and Operating Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		20 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017
Revenue	$ 291,293	$ 288,652	$ 857,660	$ 852,296
Cost of Revenue	82,268	82,470	246,213	242,809
Gross margin	209,025	206,182	611,447	609,487
Unallocated Operating Expennses	170,082	168,711	504,746	484,919
Restructuring charges	1,551	2,815	8,300	44,541	$ 85,500
Operating income	11,256	7,596	23,330	(3,939)
Interest expense	(10,200)	(8,164)	(32,239)	(19,511)
Non operating income and expenses	357	136	(2,049)	369
Income (loss) before income taxes	699	(704)	(6,860)	(23,819)
Operating Segments
Revenue	291,293	288,652	857,660	852,296
Total Segment Cost of Revenue	108,404	109,530	321,284	326,775
Segment Gross Profit	182,889	179,122	536,376	525,521
Operating Segments | IoT Group
Revenue	25,204	20,678	68,409	51,034
Cost of Revenue	25,454	22,255	72,051	61,478
Gross margin	(250)	(1,577)	(3,642)	(10,444)
Operating Segments | Solutions Group
Revenue	222,431	217,673	654,315	652,985
Cost of Revenue	47,362	44,882	138,552	140,465
Gross margin	175,069	172,791	515,763	512,520
Operating Segments | Professional Services
Revenue	43,658	50,301	134,936	148,277
Cost of Revenue	35,588	42,393	110,681	124,832
Gross margin	$ 8,070	$ 7,908	$ 24,255	$ 23,445

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Sep. 30, 2016
Income Tax Disclosure [Line Items]
Effective income tax rate		236.00%	537.00%	(63.00%)	(9.00%)
Income before income taxes		$ 699	$ (704)	$ (6,860)	$ (23,819)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				35.00%
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount		(9,000)	$ (9,000)	$ (21,000)	(16,000)
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions				1,800
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount					$ 2,600
Unrecognized tax benefits		15,300		15,300		$ 15,500
Income tax provision upon recognition of unrecognized tax benefit		13,400		13,400
Unrecognized tax benefits that would impact valuation allowance		5,100		5,100
Potentail reduction in unrecognized tax benefits and accrued interest over next 12 months		$ (6,000)		$ (6,000)
Korea
Income Tax Disclosure [Line Items]
Income tax examination, estimate of possible loss	$ 12,000

Debt (Details)

Debt (Details)	May 15, 2019	Jul. 01, 2017USD ($)	Jul. 02, 2016USD ($)	Jul. 01, 2017USD ($)	Jul. 02, 2016USD ($)	Sep. 30, 2016USD ($)	May 31, 2016USD ($)	Apr. 02, 2016USD ($)	Sep. 30, 2015bank
Debt Instrument [Line Items]
Senior Notes		$ 500,000,000		$ 500,000,000		$ 500,000,000	$ 500,000,000
Long-term Debt, Gross		718,125,000		718,125,000		758,125,000
debt net of unamortized debt issuance cost		$ 712,191,000		$ 712,191,000		751,601,000
Debt Instrument, Interest Rate, Stated Percentage							6.00%
Voting interest in domestic subsidiaries pledged against credit facility				100.00%
Voting interest in foreign subsidiaries pledged against credit facility				65.00%
Leverage Ratio, Actual		3.19		3.19
Debt Instrument, Covenant Compliance, Senior Debt Leverage Ratio, actual		0.97		0.97
Fixed charge coverage ratio, actual		5.08		5.08
Current portion of long term debt		$ 0		$ 0		0
Interest Expense		10,200,000	$ 8,164,000	32,239,000	$ 19,511,000
Line of Credit [Member]
Debt Instrument [Line Items]
Long-term portion of long term debt		218,125,000		218,125,000		258,125,000
Credit facility amount		$ 600,000,000	900,000,000	$ 600,000,000	900,000,000			$ 1,000,000,000
Additional borrowing capacity on credit facility if agreed to by lenders			$ 500,000,000		$ 500,000,000
Line of Credit Facility, Interest Rate at Period End		2.94%		2.94%
Component of Base Rate, Basis Spread on Federal Reserve Bank of New York (FRBNY) rate		0.50%		0.50%
Component of Base Rate, Basis Spread on Adjusted LIBOR				1.00%
Investment limit in foreign subsidiaries		$ 75,000,000		$ 75,000,000
Cash investment limit for acquisition of business		$ 200,000,000		$ 200,000,000
Debt Instrument, Covenant Compliance, Leverage Ratio Four		4.50		4.50
Minimum fixed charge coverage ratio allowed under debt covenant		3.50		3.50
Maximum total leverage ratio allowed under debt covenant after covenant modification trigger event		4		4
Debt Instrument, Covenant Compliance, maximum Senior Debt Leverage Ratio after covenant modification trigger event		3		3
Line of Credit [Member] | Minimum
Debt Instrument [Line Items]
Line of Credit Facility, Variable Interest Rate, Length of Time Between Updates				30 days
Credit facility commitment fees percentage				0.175%
Line of Credit [Member] | Maximum
Debt Instrument [Line Items]
Line of Credit Facility, Variable Interest Rate, Length of Time Between Updates				180 days
Credit facility commitment fees percentage				0.30%
Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Number of Banks in Credit Facility | bank									16
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit [Member] | Minimum
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				1.25%
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit [Member] | Maximum
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				1.75%
Base Rate [Member] | Line of Credit [Member] | Minimum
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				0.25%
Base Rate [Member] | Line of Credit [Member] | Maximum
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				0.75%
Scenario, Forecast [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	101.00%
Other Assets [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense		$ (2,300,000)		$ (2,300,000)		(4,200,000)
Senior Notes [Member]
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense		(5,934,000)		(5,934,000)		$ (6,524,000)
Debt Instrument, Fair Value Disclosure		$ 545,000,000		$ 545,000,000

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Thousands	1 Months Ended
	Jul. 31, 2016	Jul. 01, 2017	Sep. 30, 2016
Loss Contingencies [Line Items]
Accounts receivable, net of allowance for doubtful accounts of $1,419 and $1,012 at July 1, 2017 and September 30, 2016, respectively		$ 128,561	$ 161,357
Pending Litigation
Loss Contingencies [Line Items]
Loss contingency accrual		600
Korea
Loss Contingencies [Line Items]
Income tax examination, estimate of possible loss	$ 12,000
Minimum | Customer Contracts
Loss Contingencies [Line Items]
Accounts receivable, net of allowance for doubtful accounts of $1,419 and $1,012 at July 1, 2017 and September 30, 2016, respectively		0
Maximum | Customer Contracts
Loss Contingencies [Line Items]
Accounts receivable, net of allowance for doubtful accounts of $1,419 and $1,012 at July 1, 2017 and September 30, 2016, respectively		$ 17,300