Document

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Property, Plant and Equipment [Abstract]

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Property And Equipment

12 Months Ended

Sep. 30, 2016

Property And Equipment

Property and Equipment

Property and equipment consisted of the following:



	September 30,
	2016			2015
	(in thousands)
Computer hardware and software	$	267,928		$	246,756
Furniture and fixtures	20,742			18,370
Leasehold improvements	43,769			38,005
Gross property and equipment	332,439			303,131
Accumulated depreciation and amortization	(265,326		)	(237,969		)
Net property and equipment	$	67,113		$	65,162

Depreciation expense was $28.8 million, $28.9 million and $27.1 million in 2016, 2015 and 2014, respectively.

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Goodwill And Acquired Intangible Assets

12 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill And Intangible Assets

Goodwill and Acquired Intangible Assets

Goodwill and acquired intangible assets consisted of the following:



	September 30, 2016						September 30, 2015
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
	(in thousands)
Goodwill (not amortized)					$	1,169,813					$	1,069,041
Intangible assets with finite lives (amortized) (1):
Purchased software	$	354,595	$	199,192	$	155,403	$	284,257	$	174,887	$	109,370
Capitalized software	22,877		22,877		—		22,877		22,877		—
Customer lists and relationships	355,698		206,515		149,183		349,938		174,017		175,921
Trademarks and trade names	19,007		13,323		5,684		18,534		12,759		5,775
Other	3,955		3,920		35		3,946		3,711		235
	$	756,132	$	445,827	$	310,305	$	679,552	$	388,251	$	291,301
Total goodwill and acquired intangible assets					$	1,480,118					$	1,360,342

Changes in goodwill presented by reportable segment were as follows:



	Software Products Segment			Services Segment			Total
	(in thousands)
Balance, October 1, 2014	$	959,768		$	52,759		$	1,012,527
Axeda adjustment of purchase price from escrow	(180		)	—			(180		)
Acquisition of ColdLight	85,288			—			85,288
Foreign currency translation adjustments	(28,463		)	(131		)	(28,594		)
Balance, September 30, 2015	$	1,016,413		$	52,628		$	1,069,041
Acquisition of Vuforia	23,316			—			23,316
Acquisition of Kepware	77,081			—			77,081
Foreign currency translation adjustments	228			(6		)	222
Balance, July 2, 2016 prior to reallocation	$	1,117,038		$	52,622		$	1,169,660
	Solutions Group			IoT Group			Professional Services			Total
	(in thousands)
Balance, July 2, 2016 after reallocation	$	1,050,013		$	90,053		$	29,594		$	1,169,660
Foreign currency translation adjustments	137			12			4			153
Balance, September 30, 2016	$	1,050,150		$	90,065		$	29,598		$	1,169,813



	Year ended September 30,
	2016		2015		2014
	(in thousands)
Amortization of acquired intangible assets	$	33,198	$	36,129	$	32,127
Cost of software revenue	24,604		19,402		18,112
Total amortization expense	$	57,802	$	55,531	$	50,239

Commitments and Contingencies Disclosure [Abstract]

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

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Income Taxes

12 Months Ended

Sep. 30, 2016

Income Tax Disclosure [Abstract]

Income Taxes

Our income (loss) before income taxes consisted of the following:



	Year ended September 30,
	2016			2015			2014
	(in thousands)
Domestic	$	(156,166	)	$	(110,867	)	$	17,038
Foreign	88,974			137,392			169,074
Total income before income taxes	$	(67,192	)	$	26,525		$	186,112

Our (benefit) provision for income taxes consisted of the following:



	Year ended September 30,
	2016			2015			2014
	(in thousands)
Current:
Federal	$	2,417		$	3,907		$	12,792
State	571			599			2,062
Foreign	28,467			23,823			31,010
	31,455			28,329			45,864
Deferred:
Federal	965			(20,809		)	(13,200		)
State	515			(566		)	(2,085		)
Foreign	(45,662		)	(27,986		)	(4,661		)
	(44,182		)	(49,361		)	(19,946		)
Total provision (benefit) for income taxes	$	(12,727	)	$	(21,032	)	$	25,918

The reconciliation between the statutory federal income tax rate and our effective income tax rate is shown below:



	Year ended September 30,
	2016		2015		2014
Statutory federal income tax rate	(35	)%	35	%	35	%
Change in valuation allowance	57	%	63	%	(11	)%
State income taxes, net of federal tax benefit	—	%	7	%	1	%
Federal and state research and development credits	(9	)%	(8	)%	—	%
Resolution of uncertain tax positions	—	%	(11	)%	—	%
Foreign rate differences	(41	)%	(213	)%	(19	)%
Foreign withholding tax	3	%	14	%	3	%
U.S. permanent items	4	%	34	%	4	%
Other, net	2	%	—	%	1	%
Effective income tax rate	(19	)%	(79	)%	14	%

In 2016 and 2015, our effective tax rate was lower than the 35% statutory federal income tax rate due, in large part, to our corporate structure in which our foreign taxes are at an effective tax rate lower than the U.S. A significant amount of our foreign earnings is generated by our subsidiaries organized in Ireland and in 2016, 2015 and 2014, the foreign rate differential predominantly relates to these Irish earnings. Our foreign rate differential in 2016 and 2015 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. The realignment allows us to more efficiently manage the distribution of our products to European customers. In 2016 and 2015, this realignment resulted in a tax benefit of approximately $28 million and $24 million, respectively. In 2016 the change in valuation allowance primarily relates to U.S. losses not benefitted and the release of valuation allowance totaling $3.1 million in two foreign subsidiaries. Additionally, our provision reflects a $6.0 million tax benefit related to a U.S. research and development tax credit which was offset by a corresponding provision to increase our U.S. valuation allowance.

Acquisitions in 2014 were accounted for as business combinations. Assets acquired, including the fair value of acquired tangible assets, intangible assets and assumed liabilities were recorded, and we recorded net deferred tax liabilities of $21.6 million in 2014, primarily related to the tax effect of the acquired intangible assets that are not deductible for income tax purposes. These deferred tax liabilities reduced our net deferred tax asset balance and resulted in a tax benefit of $18.1 million in 2014, to decrease our valuation allowance in jurisdictions where we have recorded a valuation allowance (primarily the U.S.). As these decreases in the valuation allowance are not part of the accounting for business combinations (the fair value of the assets acquired and liabilities assumed), they were recorded as an income tax benefit.

The significant temporary differences that created deferred tax assets and liabilities are shown below:



	September 30,
	2016			2015
	(in thousands)
Deferred tax assets (1):
Net operating loss carryforwards	$	100,033		$	71,533
Foreign tax credits	18,041			15,962
Capitalized research and development expense	22,504			31,690
Pension benefits	14,348			11,009
Deferred revenue	65,145			71,399
Stock-based compensation	19,846			16,777
Other reserves not currently deductible	25,993			21,940
Amortization of intangible assets	54,069			62,227
Other tax credits	41,381			37,270
Depreciation	3,002			3,465
Capital loss carryforward	8,019			8,040
Deferred interest	7,622			3,557
Other	14,778			6,559
Gross deferred tax assets	394,781			361,428
Valuation allowance	(235,503		)	(198,168		)
Total deferred tax assets	159,278			163,260
Deferred tax liabilities (1):
Acquired intangible assets not deductible	(78,663		)	(124,401		)
Pension prepayments	(542		)	(395		)
Deferred revenue	(2,039		)	(3,110		)
Other	(2,092		)	(3,598		)
Total deferred tax liabilities	(83,336		)	(131,504		)
Net deferred tax assets	$	75,942		$	31,756

(1) See Note B. Recent Accounting Pronouncements-Deferred Taxes regarding a change in the balance sheet classification of our deferred taxes.

As of September 30, 2016, we have a valuation allowance of $209.0 million against net deferred tax assets in the U.S. and a valuation allowance of $26.5 million against net deferred tax assets in certain foreign jurisdictions. The valuation allowance recorded against net deferred tax assets of certain foreign jurisdictions is established primarily for our net operating loss carryforwards, the majority of which do not expire. There are limitations imposed on the utilization of such net operating losses that could restrict the recognition of any tax benefits.

The changes to the valuation allowance were primarily due to:



	Year ended September 30,
	2016			2015			2014
	(in millions)
Valuation allowance beginning of year	$	198.2		$	177.5		$	156.5
Net release of valuation allowance (1)	(3.1		)	(18.7		)	(18.1		)
Net increase/decrease in deferred tax assets with a full valuation allowance	39.8			39.4			14.1
Establish valuation allowance for acquired businesses	—			—			21.5
Establish valuation allowance in foreign jurisdictions	0.6			—			3.5
Valuation allowance end of year	$	235.5		$	198.2		$	177.5


(1)	In 2016, this is attributable to the release in two foreign jurisdictions. In 2015, this is attributable to a reduction in deferred tax assets associated with our U.S. pension plan, both of which are described above and in 2014 the recognition of deferred tax liabilities recorded in connection with accounting for acquisitions.



	Year ended September 30,
Unrecognized tax benefits	2016		2015			2014
	(in millions)
Unrecognized tax benefit beginning of year	$	14.1	$	15.0		$	13.7
Tax positions related to current year:
Additions	1.0		1.3			2.2
Tax positions related to prior years:
Additions	0.4		0.8			0.3
Reductions	—		(3.0		)	(0.1		)
Settlements	—		—			(0.6		)
Statute expirations	—		—			(0.5		)
Unrecognized tax benefit end of year	$	15.5	$	14.1		$	15.0



Major Tax Jurisdiction		Open Years
United States		2014 through 2016
Germany		2011 through 2016
France		2013 through 2016
Japan		2011 through 2016
Ireland		2012 through 2016

Additionally, net operating loss and tax credit carryforwards from certain earlier periods in these jurisdictions may be subject to examination to the extent they are utilized in later periods.

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Debt

12 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Debt

As of September 30, 2016 and 2015, we had the following long-term borrowing obligations:



	September 30,
	2016			2015
	(in thousands)
6.000% Senior notes due 2024	$	500,000		$	—
Credit facility-revolver	258,125			193,125
Credit facility-term loan	—			475,000
Total debt	758,125			668,125
Unamortized debt issuance costs	(10,709		)	(7,587		)
Total debt, net of issuance costs	$	747,416		$	660,538

Reported as
Current portion of long-term debt	$	—		$	50,000
Long-term debt	758,125			618,125
Total debt	$	758,125		$	668,125

Senior Unsecured Notes

As of September 30, 2016, the total estimated fair value of the Notes was approximately $536.3 million, which is based on quoted prices for the notes on that date.

Credit Agreement


•	a total leverage ratio, defined as consolidated funded indebtedness to consolidated trailing four quarters EBITDA, not to exceed 4.00 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.

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Commitments And Contingencies

12 Months Ended

Sep. 30, 2016

Commitments And Contingencies

Commitments and Contingencies

Leasing Arrangements



Year ending September 30,	(in thousands)
2017	$	39,994
2018	34,347
2019	27,150
2020	22,804
2021	14,943
Thereafter	16,776
Total minimum lease payments	$	156,014

Legal and Regulatory Matters

Korean Tax Audit

In July 2016, we received an assessment from the tax authorities in Korea related to an ongoing tax audit of approximately $12 million. See Note G. Income Taxes for additional information.

Follow-On China Investigation

Legal Proceedings

Accruals

Guarantees and Indemnification Obligations

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Equity Incentive Plan

12 Months Ended

Sep. 30, 2016

Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]

Equity Incentive Plan

The following table shows total stock-based compensation expense recorded from our stock-based awards as reflected in our Consolidated Statements of Operations:



	Year ended September 30,
	2016		2015		2014
	(in thousands)
Cost of software revenue	$	5,398	$	4,296	$	4,059
Cost of professional services revenue	5,393		5,871		6,351
Sales and marketing	14,659		14,189		13,441
Research and development	10,174		11,623		10,119
General and administrative	30,372		14,203		16,919
Total stock-based compensation expense	$	65,996	$	50,182	$	50,889



	Shares		Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value as of September 30, 2016
Restricted stock unit activity for the year ended September 30, 2016	(in thousands except grant date fair value data)
Balance of nonvested outstanding restricted stock units October 1, 2015	3,654		$	33.64
Granted	2,484		$	37.25
Vested	(1,818	)	$	30.10
Forfeited or not earned	(544	)	$	36.49
Balance of nonvested outstanding restricted stock units September 30, 2016	3,776		$	37.30	$	167,314



	Restricted Stock Units
Restricted stock unit grants	TSR Units (1)	Performance-based RSUs (2)	Service-based RSUs (2)
	(Number of Units in thousands)
Year ended September 30, 2016	326	343	1,815


(1)	The TSR units were granted to our executive officers pursuant to the terms described below.

The significant assumptions used in the Monte Carlo simulation model were as follows:



Average volatility of peer group	28.1	%
Risk free interest rate	1.05	%
Dividend yield	—	%



	Year ended September 30,
	2016		2015		2014
Value of stock option and stock-based award activity	(in thousands)
Total intrinsic value of stock options exercised	$	88	$	182	$	2,040
Total fair value of restricted stock unit awards vested	$	63,655	$	84,189	$	79,660

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Stockholders' Equity	12 Months Ended
Stockholders' Equity	Sep. 30, 2016
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stockholders’ Equity Preferred Stock We may issue up to 5.0 million shares of our preferred stock in one or more series. 0.5 million of these shares are designated as Series A Junior Participating Preferred Stock. Our Board of Directors is authorized to fix the rights and terms for any series of preferred stock without additional shareholder approval. Common Stock Our Articles of Organization authorize us to issue up to 500 million shares of our common stock. Our Board of Directors has periodically authorized the repurchase of shares of our common stock. We were authorized to repurchase up to $100 million worth of shares with cash from operations in fiscal year 2014. Additionally, on August 4, 2014, our Board of Directors authorized us to repurchase up to an additional $600 million of our common stock through September 30, 2017. We intend to use cash from operations and borrowings under our credit facility to make such repurchases. In 2016, we did not repurchase any shares. We repurchased 2.7 million shares at a cost of $64.9 million in 2015 and 5.1 million shares at a cost of $224.9 million in 2014 (including $37.5 million held by the bank pending final settlement of the accelerated share repurchase ("ASR") agreement described below). All shares of our common stock repurchased are automatically restored to the status of authorized and unissued. Future repurchases of shares will reduce our cash balances. On August 14, 2014, we entered into an accelerated share repurchase (“ASR”) agreement with a major financial institution (“Bank”). The ASR allowed us to buy a large number of shares immediately at a purchase price determined by an average market price over a period of time. Under the ASR, we agreed to purchase $125.0 million of our common stock, in total, with an initial delivery to us in August 2014 of 2.3 million shares. We settled the ASR in December 2014 and the Bank delivered to us 1.1 million additional shares.

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Preferred Stock
-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21564-112644

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section E

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

XML 44 R20.htm IDEA: XBRL DOCUMENT

Employee Benefit Plan	12 Months Ended
Employee Benefit Plan	Sep. 30, 2016
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]
Employee Benefit Plan	Employee Benefit Plan We offer a savings plan to eligible U.S. employees. The plan is intended to qualify under Section 401(k) of the Internal Revenue Code. Participating employees may defer a portion of their pre-tax compensation, as defined, but not more than statutory limits. We contribute 50% of the amount contributed by the employee, up to a maximum of 3% of the employee’s earnings. Our matching contributions vest at a rate of 25% per year of service, with full vesting after 4 years of service. We made matching contributions of $5.4 million, $5.3 million, and $5.1 million in 2016, 2015 and 2014, respectively.

XML 45 R21.htm IDEA: XBRL DOCUMENT

Pension Plans

12 Months Ended

Sep. 30, 2016

Pension Plans

The following table presents the actuarial assumptions used in accounting for the pension plans:



	U.S. Plan						International Plans
	2016		2015		2014		2016		2015		2014
Weighted average assumptions used to determine benefit obligations at September 30 measurement date:
Discount rate	—	%	—	%	3.80	%	1.3	%	2.2	%	2.4	%
Rate of increase in future compensation	—	%	—	%	—	%	2.8	%	3.0	%	3.0	%
Weighted average assumptions used to determine net periodic pension cost for fiscal years ended September 30:
Discount rate	—	%	3.80	%	4.90	%	2.2	%	2.4	%	3.3	%
Rate of increase in future compensation	—	%	—	%	—	%	3.0	%	3.0	%	3.0	%
Rate of return on plan assets	—	%	1.35	%	7.25	%	5.7	%	5.8	%	5.7	%

The actuarially computed components of net periodic pension cost recognized in our Consolidated Statements of Operations for each year are shown below:



	U.S. Plan								International Plans
	2016		2015			2014			2016			2015			2014
	(in thousands)
Interest cost of projected benefit obligation	$	—	$	4,591		$	5,461		$	1,374		$	1,828		$	2,442
Service cost	—		—			—			1,599			1,466			1,659
Expected return on plan assets	—		(1,364		)	(7,151		)	(3,305		)	(3,364		)	(2,506		)
Amortization of prior service cost	—		—			—			(5		)	(4		)	(5		)
Recognized actuarial loss	—		2,577			2,213			2,292			1,815			1,181
Settlement loss	—		66,332			—			—			—			—
Net periodic pension cost	$	—	$	72,136		$	523		$	1,955		$	1,741		$	2,771

The following tables display the change in benefit obligation and the change in the plan assets and funded status of the plans as well as the amounts recognized in our Consolidated Balance Sheets:



	U.S. Plan					International Plans						Total
	Year ended September 30,
	2016		2015			2016			2015			2016			2015
	(in thousands)
Change in benefit obligation:
Projected benefit obligation—beginning of year	$	—	$	134,453		$	78,188		$	84,106		$	78,188		$	218,559
Service cost	—		—			1,599			1,466			1,599			1,466
Interest cost	—		4,591			1,374			1,828			1,374			6,419
Actuarial loss	—		1,606			10,556			1,988			10,556			3,594
Foreign exchange impact	—		—			2,431			(9,515		)	2,431			(9,515		)
Participant contributions	—		—			147			198			147			198
Benefits paid	—		(5,300		)	(1,600		)	(1,883		)	(1,600		)	(7,183		)
Settlements	—		(135,350		)	—			—			—			(135,350		)
Projected benefit obligation—end of year	$	—	$	—		$	92,695		$	78,188		$	92,695		$	78,188
Change in plan assets and funded status:
Plan assets at fair value—beginning of year	$	—	$	112,859		$	57,961		$	44,491		$	57,961		$	157,350
Actual return on plan assets	—		2,316			1,742			(438		)	1,742			1,878
Employer contributions	—		25,475			1,978			21,225			1,978			46,700
Participant contributions	—		—			147			198			147			198
Foreign exchange impact	—		—			1,707			(5,632		)	1,707			(5,632		)
Settlements	—		(135,350		)	—			—			—			(135,350		)
Benefits paid	—		(5,300		)	(1,600		)	(1,883		)	(1,600		)	(7,183		)
Plan assets at fair value—end of year	—		—			61,935			57,961			61,935			57,961
Projected benefit obligation—end of year	—		—			92,695			78,188			92,695			78,188
Underfunded status	$	—	$	—		$	(30,760	)	$	(20,227	)	$	(30,760	)	$	(20,227	)
Accumulated benefit obligation—end of year	$	—	$	—		$	88,768		$	74,928		$	88,768		$	74,928
Amounts recognized in the balance sheet:
Non-current liability	$	—	$	—		$	(30,760	)	$	(20,227	)	$	(30,760	)	$	(20,227	)
Current liability	$	—	$	—		$	—		$	—		$	—		$	—
Amounts in accumulated other comprehensive loss:
Unrecognized actuarial loss	$	—	$	—		$	38,667		$	28,339		$	38,667		$	28,339

We expect to recognize approximately $3.4 million of the unrecognized actuarial loss as of September 30, 2016 as a component of net periodic pension cost in 2017.

The following table shows change in accumulated other comprehensive loss:



	U.S. Plan					International Plans						Total
	Year ended September 30,
	2016		2015			2016			2015			2016			2015
	(in thousands)
Accumulated other comprehensive loss- beginning of year	$	—	$	68,256		$	28,339		$	27,669		$	28,339		$	95,925
Recognized during year - net actuarial (losses)	—		(2,577		)	(2,288		)	(1,811		)	(2,288		)	(4,388		)
Occurring during year - settlement loss	—		(66,332		)	—			—			—			(66,332		)
Occurring during year - net actuarial losses	—		653			12,119			5,792			12,119			6,445
Foreign exchange impact	—		—			497			(3,311		)	497			(3,311		)
Accumulated other comprehensive loss- end of year	$	—	$	—		$	38,667		$	28,339		$	38,667		$	28,339

The following table shows the percentage of total plan assets for each major category of plan assets:



	International Plans
	September 30,
	2016	2015
Asset category:
Equity securities	49%	53%
Fixed income securities	30%	32%
Commodities	4%	—%
Insurance company	16%	13%
Cash	1%	2%
	100%	100%

In 2016, 2015 and 2014 our actual return on plan assets was $1.7 million, $1.9 million and $15.9 million, respectively.

Based on actuarial valuations and additional voluntary contributions, we contributed $2.0 million, $46.7 million, and $12.9 million in 2016, 2015 and 2014, respectively, to the plans.

As of September 30, 2016, benefit payments expected to be paid over the next ten years are outlined in the following table:



	Future Benefit Payments
	(in thousands)
Year ending September 30,
2017	$	1,899
2018	2,314
2019	2,566
2020	2,861
2021	3,175
2022 to 2026	22,034

Fair Value of Plan Assets



	September 30, 2016
	Level 1		Level 2		Level 3		Total
	(in thousands)
International plan assets:
Fixed income securities:
Government	$	8,518	$	—	$	—	$	8,518
Europe corporate investment grade	10,218		—		—		10,218
Europe large capitalization stocks	30,615		—		—		30,615
Commodities	2,709		—		—		2,709
Insurance company funds (1)	—		9,578		—		9,578
Cash	297		—		—		297
	$	52,357	$	9,578	$	—	$	61,935



	September 30, 2015
	Level 1		Level 2		Level 3		Total
	(in thousands)
International plan assets:
Fixed income securities:
Government	$	11,086	$	—	$	—	$	11,086
Europe corporate investment grade	7,487		—		—		7,487
Europe large capitalization stocks	30,887		—		—		30,887
Insurance company funds (1)	—		7,668		—		7,668
Cash	833		—		—		833
	$	50,293	$	7,668	$	—	$	57,961

XML 46 R22.htm IDEA: XBRL DOCUMENT

Derivative Financial Instruments (Notes)

12 Months Ended

Sep. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

As of September 30, 2016 and 2015, we had outstanding forward contracts for derivatives not designated as hedging instruments with notional amounts equivalent to the following:



	September 30,
Currency Hedged	2016		2015
	(in thousands)
Canadian/U.S. Dollar	$	14,685	$	17,448
Euro/U.S. Dollar	174,120		82,917
British Pound/Euro	1,382		9,409
Israeli Sheqel/U.S. Dollar	7,271		4,607
Japanese Yen/Euro	32,782		25,133
Japanese Yen/U.S. Dollar	6,716		—
Swiss Franc/U.S. Dollar	730		5,149
All other	11,848		12,592
Total	$	249,534	$	157,255

The following table shows the effect of our non-designated hedges in the Consolidated Statements of Operations for the twelve months ended September 30, 2016 and 2015:



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)
		Twelve months ended
		September 30, 2016			September 30, 2015		September 30, 2014
		(in thousands)
Forward Contracts	Other Income (Expense)	$	(883	)	$	615	$	(3,769	)

As of September 30, 2016 and 2015, we had outstanding forward contracts designated as cash flow hedges with notional amounts equivalent to the following:



Currency Hedged	September 30, 2016		September 30, 2015
	(in thousands)
Euro / U.S. Dollar	$	26,181	$	—
Japanese Yen / U.S. Dollar	8,800		—
SEK / U.S. Dollar	4,078		—
Total	$	39,059	$	—

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

Twelve Months Ended

September 30,
2016

Forward Contracts

(3,859

)

Software Revenue

(2,436

)

Other Income (Expense)

(24

)

As of September 30, 2016, we estimated that approximately all values reported in accumulated other comprehensive income will be reclassified to income within the next twelve months.

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
	September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
	(in thousands)				(in thousands)
Derivative assets (a):
Forward Contracts	$	44	$	—	$	216	$	507
Derivative liabilities (b):
Forward Contracts	$	1,477	$	—	$	1,693	$	46
(a) All derivative assets are recorded in “other current assets” in the Consolidated Balance Sheets.
(b) All derivative liabilities are recorded in "accrued expenses and other current liabilities" in the Consolidated Balance Sheets.

Offsetting Derivative Assets and Liabilities

The following table sets forth the offsetting of derivative assets as of September 30, 2016:



	Gross Amounts Offset in the Consolidated Balance Sheets						Gross Amounts Not Offset in the Consolidated Balance Sheets
September 30, 2016	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	$	260	$	—	$	260	$	(260	)	$	—	$	—

The following table sets forth the offsetting of derivative liabilities as of September 30, 2016:



	Gross Amounts Offset in the Consolidated Balance Sheets						Gross Amounts Not Offset in the Consolidated Balance Sheets
September 30, 2016	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	$	3,170	$	—	$	3,170	$	(260	)	$	—	$	2,910

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6441202&loc=d3e80720-113993

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Publisher FASB
-Name Accounting Standards Codification
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-Subparagraph (SX 210.4-08.(n))
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XML 47 R23.htm IDEA: XBRL DOCUMENT

Segment Information

12 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Segment Information

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.



	Year ended September 30,
	2016			2015		2014
	(in thousands)
Solutions Group
Revenue	$	871,225		$	980,274	$	1,073,426
Direct costs	186,174			224,042		244,020
Profit	685,051			756,232		829,406

IoT Group
Revenue	72,371			49,249		4,815
Direct costs	83,747			28,998		8,534
Profit (loss)	(11,376		)	20,251		(3,719		)

Professional Services
Revenue	196,937			225,719		278,726
Direct costs	165,325			193,397		237,689
Profit	31,612			32,322		41,037

Total segment revenue	1,140,533			1,255,242		1,356,967
Total segment costs	435,246			446,437		490,243
Total segment profit	705,287			808,805		866,724

Other unallocated operating expenses (1)	666,028			723,780		641,742
Restructuring charges	76,273			43,409		28,406
Total operating income (loss)	(37,014		)	41,616		196,576
Interest and other expense, net	30,178			15,091		10,464
Income (loss) before income taxes	$	(67,192	)	$	26,525	$	186,112

(1)

We report revenue by the following four product areas:


•	CAD: PTC Creo^®and PTC Mathcad^®.


•	PLM: PLM solutions (primarily PTC Windchill^®), PTC Integrity^™and Atego^®.


•	SLM: PTC Arbortext^® and PTC Servigistics^®.


•	IoT: ThingWorx^®, Axeda^®and Vuforia.



	Year ended September 30,
	2016		2015		2014
	(in thousands)
CAD	$	462,307	$	511,582	$	581,508
PLM	456,285		524,741		599,312
SLM	141,644		166,060		170,980
IoT	80,297		52,859		5,167
Total revenue	$	1,140,533	$	1,255,242	$	1,356,967

Revenue and long-lived tangible assets for the geographic regions in which we operate is presented below.



	Year ended September 30,
	2016		2015		2014
	(in thousands)
Revenue:
Americas (1)	$	487,594	$	530,311	$	558,671
Europe (2)	424,268		467,805		528,090
Pacific Rim	123,766		139,165		148,151
Japan	104,905		117,961		122,055
Total revenue	$	1,140,533	$	1,255,242	$	1,356,967



	September 30,
	2016		2015		2014
	(in thousands)
Long-lived tangible assets:
Americas (3)	$	48,281	$	47,509	$	51,027
Europe	6,915		7,424		7,020
Asia-Pacific	11,917		10,229		9,736
Total long-lived tangible assets	$	67,113	$	65,162	$	67,783


(1)	Includes revenue in the United States totaling $463.1 million, $500.6 million and $518.7 million for 2016, 2015 and 2014, respectively.


(2)	Includes revenue in Germany totaling $167.2 million, $177.1 million and $200.3 million for 2016, 2015 and 2014, respectively.


(3)	Substantially all of the Americas long-lived tangible assets are located in the United States.

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8981-108599

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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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Cost Method Investments, Policy [Policy Text Block]

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Subsequent Events

12 Months Ended

Sep. 30, 2016

Subsequent Events [Abstract]

Subsequent Events

Korea Tax Payment

In October 2016, we paid $12.0 million related the Korea tax assessment described in Note G. Income Taxes.

Restricted Stock Unit Grants



	TSR units		Performance-Based RSUs		Time-Based RSUs
	(in thousands)
Maximum number of RSUs eligible to vest	495		316		711
Intrinsic value on grant date based on the maximum number of RSUs eligible to vest	$	23,482	$	14,991	$	33,731

Borrowings

In November 2016, we borrowed $60 million under our credit facility to fund working capital requirements, including 2016 year end incentive-based compensation accruals.

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Summary Of Significant Accounting Policies (Policy)

12 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Cost Method Investments

Foreign Currency Translation

Revenue Recognition


•	determining whether collection is probable;


•	assessing whether the fee is fixed or determinable;


•	determining whether service arrangements, including modifications and customization of the underlying software, are not essential to the functionality of the licensed software and thus would result in the revenue for license and service elements of an agreement being recorded separately; and


•	determining the fair value of services and support elements included in multiple-element arrangements, which is the basis for allocating and deferring revenue for such services and support.

Subscription

Subscription revenue includes revenue from two primary sources: (1) subscription-based licenses, and (2) cloud services.

Support

Perpetual License

Under perpetual license arrangements, we generally recognize license revenue up front upon shipment to the customer. We use the residual method to recognize revenue from perpetual license software arrangements that include one or more elements to be delivered at a future date when evidence of the fair value of all undelivered elements exists, and the elements of the arrangement qualify for separate accounting as described below. Under the residual method, the fair value of the undelivered elements (i.e., support and services) based on our vendor-specific objective evidence (“VSOE”) of fair value is deferred and the remaining portion of the total arrangement fee is allocated to the delivered elements (i.e., perpetual software license). If evidence of the fair value of one or more of the undelivered elements does not exist, all revenues are deferred and recognized when delivery of all of those elements has occurred or when fair values can be established. We determine VSOE of the fair value of services and support revenue based upon our recent pricing for those elements when sold separately. For certain transactions, VSOE is determined based on a substantive renewal clause within a customer contract. Our current pricing practices are influenced primarily by product type, purchase volume, sales channel and customer location. We review services and support sold separately on a periodic basis and update, when appropriate, our VSOE of fair value for such elements to ensure that it reflects our recent pricing experience.

Professional Services

Training services include on-site and classroom training. Training revenues are recognized as the related training services are provided.

Deferred Revenue



	September 30,
	2016		2015
	(in thousands)
Deferred subscription revenue	$	102,847	$	37,478
Deferred support revenue	297,684		331,793
Deferred perpetual license revenue	4,151		4,940
Deferred professional services revenue	8,975		12,639
Total deferred revenue	$	413,657	$	386,850

Cash Equivalents

Marketable Securities

The amortized cost and fair value of marketable securities as of September 30, 2016 were as follows:



	September 31, 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

The following table presents our available-for-sale marketable securities by contractual maturity date, as of September 31, 2016.



	September 31, 2016
	Amortized cost		Fair value
	(in thousands)
Due in one year or less	$	18,585	$	18,549
Due after one year through three years	31,153		31,067
	$	49,738	$	49,616

Concentration Of Credit Risk And Fair Value Of Financial Instruments

Concentration of Credit Risk and Fair Value of Financial Instruments

Fair Value Measurements


•	Level 1: quoted prices (unadjusted) in active markets for identical assets or liabilities;

•


•	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.

Our significant financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2016 and 2015 were as follows:



	September 30, 2016
	Level 1		Level 2		Level 3		Total
	(in thousands)
Financial assets:
Cash equivalents (1)	$	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 acquisitions	$	—	$	—	$	19,570	$	19,570
Forward contracts	—		3,170		—		3,170
	$	—	$	3,170	$	19,570	$	22,740



	September 30, 2015
	Level 1		Level 2		Level 3		Total
	(in thousands)
Financial assets:
Cash equivalents (1)	$	91,216	$	—	$	—	$	91,216
Forward contracts	—		507		—		507
	$	91,216	$	507	$	—	$	91,723
Financial liabilities:
Contingent consideration related to acquisitions	$	—	$	—	$	13,000	$	13,000
Forward contracts	—		46		—		46
	$	—	$	46	$	13,000	$	13,046

(1) Money market funds and time deposits.



	Contingent Consideration
	(in thousands)
	ThingWorx			ColdLight			Kepware		Total
Balance at October 1, 2014	$	15,191		$	—		$	—	$	15,191
Contingent consideration at acquisition	—			3,800			—		3,800
Change in fair value of contingent consideration	2,809			200			—		3,009
Payment of contingent consideration	(9,000		)	—			—		(9,000		)
Balance at October 1, 2015	9,000			4,000			—		13,000
Contingent consideration at acquisition	—			—			16,900		16,900
Change in fair value of contingent consideration	—			1,000			170		1,170
Payment of contingent consideration	(9,000		)	(2,500		)	—		(11,500		)
Balance at September 30, 2016	$	—		$	2,500		$	17,070	$	19,570

Allowance For Doubtful Accounts

Allowance for Doubtful Accounts

Financing Receivables And Transfers Of Financial Assets

Financing Receivables and Transfers of Financial Assets



	September 30,
	2016		2015
	(in thousands)
S&P bond rating BBB- and above-Tier 1	$	5,953	$	16,841
Internal Credit Assessment-Tier 2	1,182		10,593
Internal Credit Assessment-Tier 3	—		—
Total financing receivables	$	7,135	$	27,434

Derivatives

Non-Designated Hedges

Cash Flow Hedges

Property And Equipment

Property and Equipment

Software Development Costs

Goodwill, Acquired Intangible Assets And Long-lived Assets

Goodwill, Acquired Intangible Assets and Long-lived Assets

Goodwill is the amount by which the purchase price in a business acquisition exceeds the fair values of net identifiable assets on the date of purchase.

Advertising Expenses

Advertising costs are expensed as incurred. Total advertising expenses incurred were $2.1 million, $1.1 million and $2.2 million in 2016, 2015 and 2014, respectively.

Income Taxes

Comprehensive Income (Loss)

Earnings Per Share (EPS)

Earnings per Share (EPS)

The following table presents the calculation for both basic and diluted EPS:



	Year ended September 30,
	2016			2015		2014
	(in thousands, except per share data)
Net income (loss)	$	(54,465	)	$	47,557	$	160,194
Weighted average shares outstanding	114,612			114,775		118,094
Dilutive effect of employee stock options, restricted shares and restricted stock units	—			1,237		1,890
Diluted weighted average shares outstanding	114,612			116,012		119,984
Basic earnings per share	$	(0.48	)	$	0.41	$	1.36
Diluted earnings per share	$	(0.48	)	$	0.41	$	1.34

Stock-Based Compensation

Related Party Transaction

New Accounting Pronouncements

Recent Accounting Pronouncements

Income Taxes

Cash Flows

Financial Instruments - Credit Losses

Stock Compensation

Leases

Financial Instruments

Deferred Taxes

Revenue Recognition

Debt Issuance Costs

Going Concern

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Description of Business and Basis of Presentation (Tables)

12 Months Ended

Sep. 30, 2016

Description Of Business And Basis Of Presentation [Abstract]

Reclassifications



	Year Ended September 30,
	2015		2014
Reclassifications within revenue	(in millions)
From L&S to Perpetual License	$	282.8	$	362.6
From L&S to Subscription	65.2		27.1

Reclassifications within cost of revenue
From L&S to Software	$	53.2	$	45.0
From Support to Software	82.8		84.7

Reclassifications within operating expenses
From General and Administrative to Selling and Marketing	$	8.0	$	10.0

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Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Deferred Revenue

Deferred revenue consisted of the following:



	September 30,
	2016		2015
	(in thousands)
Deferred subscription revenue	$	102,847	$	37,478
Deferred support revenue	297,684		331,793
Deferred perpetual license revenue	4,151		4,940
Deferred professional services revenue	8,975		12,639
Total deferred revenue	$	413,657	$	386,850

Marketable Securities

The amortized cost and fair value of marketable securities as of September 30, 2016 were as follows:



	September 31, 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 September 31, 2016.



	September 31, 2016
	Amortized cost		Fair value
	(in thousands)
Due in one year or less	$	18,585	$	18,549
Due after one year through three years	31,153		31,067
	$	49,738	$	49,616

Financial Assets And Liabilities Measured At Fair Value On Recurring Basis

Our significant financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2016 and 2015 were as follows:



	September 30, 2016
	Level 1		Level 2		Level 3		Total
	(in thousands)
Financial assets:
Cash equivalents (1)	$	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 acquisitions	$	—	$	—	$	19,570	$	19,570
Forward contracts	—		3,170		—		3,170
	$	—	$	3,170	$	19,570	$	22,740



	September 30, 2015
	Level 1		Level 2		Level 3		Total
	(in thousands)
Financial assets:
Cash equivalents (1)	$	91,216	$	—	$	—	$	91,216
Forward contracts	—		507		—		507
	$	91,216	$	507	$	—	$	91,723
Financial liabilities:
Contingent consideration related to acquisitions	$	—	$	—	$	13,000	$	13,000
Forward contracts	—		46		—		46
	$	—	$	46	$	13,000	$	13,046

(1) Money market funds and time deposits.

Changes in fair value of contingent consideration

Changes in the fair value of Level 3 contingent consideration liability associated with our acquisitions of ThingWorx, ColdLight and Kepware were as follows:



	Contingent Consideration
	(in thousands)
	ThingWorx			ColdLight			Kepware		Total
Balance at October 1, 2014	$	15,191		$	—		$	—	$	15,191
Contingent consideration at acquisition	—			3,800			—		3,800
Change in fair value of contingent consideration	2,809			200			—		3,009
Payment of contingent consideration	(9,000		)	—			—		(9,000		)
Balance at October 1, 2015	9,000			4,000			—		13,000
Contingent consideration at acquisition	—			—			16,900		16,900
Change in fair value of contingent consideration	—			1,000			170		1,170
Payment of contingent consideration	(9,000		)	(2,500		)	—		(11,500		)
Balance at September 30, 2016	$	—		$	2,500		$	17,070	$	19,570

Financing Receivable Credit Quality Indicators

Our credit risk assessment for financing receivables was as follows:



	September 30,
	2016		2015
	(in thousands)
S&P bond rating BBB- and above-Tier 1	$	5,953	$	16,841
Internal Credit Assessment-Tier 2	1,182		10,593
Internal Credit Assessment-Tier 3	—		—
Total financing receivables	$	7,135	$	27,434

Earnings Per Share Basic And Diluted

The following table presents the calculation for both basic and diluted EPS:



	Year ended September 30,
	2016			2015		2014
	(in thousands, except per share data)
Net income (loss)	$	(54,465	)	$	47,557	$	160,194
Weighted average shares outstanding	114,612			114,775		118,094
Dilutive effect of employee stock options, restricted shares and restricted stock units	—			1,237		1,890
Diluted weighted average shares outstanding	114,612			116,012		119,984
Basic earnings per share	$	(0.48	)	$	0.41	$	1.36
Diluted earnings per share	$	(0.48	)	$	0.41	$	1.34

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Restructuring Charges (Tables)

12 Months Ended

Sep. 30, 2016

Restructuring [Abstract]

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

The following table summarizes restructuring charges reserve activity for the three years ended September 30, 2016:



	Employee Severance and Related Benefits			Facility Closures and Other Costs			Consolidated Total
	(in thousands)
Balance, October 1, 2013	$	19,234		$	295		$	19,529
Charges to operations	27,918			488			28,406
Cash disbursements	(20,334		)	(241		)	(20,575		)
Foreign currency impact	(983		)	(7		)	(990		)
Balance, September 30, 2014	25,835			535			26,370
Charges to operations	41,997			1,412			43,409
Cash disbursements	(52,882		)	(706		)	(53,588		)
Foreign currency impact	(864		)	(73		)	(937		)
Balance, September 30, 2015	14,086			1,168			15,254
Charges to operations	74,929			1,344			76,273
Cash disbursements	(53,966		)	(1,053		)	(55,019		)
Foreign currency impact	128			(28		)	100
Balance, September 30, 2016	$	35,177		$	1,431		$	36,608

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Acquisitions (Tables)

12 Months Ended

Sep. 30, 2016

Business Combinations [Abstract]

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

The total purchase price for our 2016 acquisitions was allocated to assets and liabilities acquired as follows:



Purchase price allocation:	Kepware			Vuforia
	(in thousands)
Goodwill	$	77,081		$	23,316
Identifiable intangible assets	34,500			41,200
Cash	590			4,466
Other assets and liabilities, net	4,729			261
Total allocation of purchase price consideration	116,900			69,243
Less: cash acquired	(590		)	(4,466		)
Total purchase price allocation, net of cash acquired	116,310			64,777
Less: contingent consideration	(16,900		)	—
Net cash used for acquisitions of businesses	$	99,410		$	64,777

The total purchase price for ColdLight was allocated to assets and liabilities acquired as follows:



Purchase price allocation:	(in thousands)
Goodwill	$	85,288
Identifiable intangible assets	17,620
Cash	1,313
Other assets and liabilities, net	(516		)
Total allocation of purchase price consideration	103,705
Less: cash acquired	(1,313		)
Total purchase price allocation, net of cash acquired	102,392
Less: contingent consideration	(3,800		)
Net cash used to acquire ColdLight	$	98,592

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Property And Equipment (Tables)

12 Months Ended

Sep. 30, 2016

Property, Plant and Equipment [Abstract]

Components Of Property And Equipment

Property and equipment consisted of the following:



	September 30,
	2016			2015
	(in thousands)
Computer hardware and software	$	267,928		$	246,756
Furniture and fixtures	20,742			18,370
Leasehold improvements	43,769			38,005
Gross property and equipment	332,439			303,131
Accumulated depreciation and amortization	(265,326		)	(237,969		)
Net property and equipment	$	67,113		$	65,162

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Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill And Acquired Intangible Assets

Goodwill and acquired intangible assets consisted of the following:



	September 30, 2016						September 30, 2015
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
	(in thousands)
Goodwill (not amortized)					$	1,169,813					$	1,069,041
Intangible assets with finite lives (amortized) (1):
Purchased software	$	354,595	$	199,192	$	155,403	$	284,257	$	174,887	$	109,370
Capitalized software	22,877		22,877		—		22,877		22,877		—
Customer lists and relationships	355,698		206,515		149,183		349,938		174,017		175,921
Trademarks and trade names	19,007		13,323		5,684		18,534		12,759		5,775
Other	3,955		3,920		35		3,946		3,711		235
	$	756,132	$	445,827	$	310,305	$	679,552	$	388,251	$	291,301
Total goodwill and acquired intangible assets					$	1,480,118					$	1,360,342

Schedule Of Movements in Goodwill by Reportable Segment

Changes in goodwill presented by reportable segment were as follows:



	Software Products Segment			Services Segment			Total
	(in thousands)
Balance, October 1, 2014	$	959,768		$	52,759		$	1,012,527
Axeda adjustment of purchase price from escrow	(180		)	—			(180		)
Acquisition of ColdLight	85,288			—			85,288
Foreign currency translation adjustments	(28,463		)	(131		)	(28,594		)
Balance, September 30, 2015	$	1,016,413		$	52,628		$	1,069,041
Acquisition of Vuforia	23,316			—			23,316
Acquisition of Kepware	77,081			—			77,081
Foreign currency translation adjustments	228			(6		)	222
Balance, July 2, 2016 prior to reallocation	$	1,117,038		$	52,622		$	1,169,660
	Solutions Group			IoT Group			Professional Services			Total
	(in thousands)
Balance, July 2, 2016 after reallocation	$	1,050,013		$	90,053		$	29,594		$	1,169,660
Foreign currency translation adjustments	137			12			4			153
Balance, September 30, 2016	$	1,050,150		$	90,065		$	29,598		$	1,169,813

Amortization Of Intangible Assets



	Year ended September 30,
	2016		2015		2014
	(in thousands)
Amortization of acquired intangible assets	$	33,198	$	36,129	$	32,127
Cost of software revenue	24,604		19,402		18,112
Total amortization expense	$	57,802	$	55,531	$	50,239

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Income Taxes (Tables)

12 Months Ended

Sep. 30, 2016

Income Tax Disclosure [Abstract]

Summary Of Income (Loss) Before Income Taxes

Our income (loss) before income taxes consisted of the following:



	Year ended September 30,
	2016			2015			2014
	(in thousands)
Domestic	$	(156,166	)	$	(110,867	)	$	17,038
Foreign	88,974			137,392			169,074
Total income before income taxes	$	(67,192	)	$	26,525		$	186,112

Schedule Of Provision For (Benefit From) Income Taxes

Our (benefit) provision for income taxes consisted of the following:



	Year ended September 30,
	2016			2015			2014
	(in thousands)
Current:
Federal	$	2,417		$	3,907		$	12,792
State	571			599			2,062
Foreign	28,467			23,823			31,010
	31,455			28,329			45,864
Deferred:
Federal	965			(20,809		)	(13,200		)
State	515			(566		)	(2,085		)
Foreign	(45,662		)	(27,986		)	(4,661		)
	(44,182		)	(49,361		)	(19,946		)
Total provision (benefit) for income taxes	$	(12,727	)	$	(21,032	)	$	25,918

Summary Of Federal Income Tax Rate And Effective Income Tax Rate

The reconciliation between the statutory federal income tax rate and our effective income tax rate is shown below:



	Year ended September 30,
	2016		2015		2014
Statutory federal income tax rate	(35	)%	35	%	35	%
Change in valuation allowance	57	%	63	%	(11	)%
State income taxes, net of federal tax benefit	—	%	7	%	1	%
Federal and state research and development credits	(9	)%	(8	)%	—	%
Resolution of uncertain tax positions	—	%	(11	)%	—	%
Foreign rate differences	(41	)%	(213	)%	(19	)%
Foreign withholding tax	3	%	14	%	3	%
U.S. permanent items	4	%	34	%	4	%
Other, net	2	%	—	%	1	%
Effective income tax rate	(19	)%	(79	)%	14	%

Schedule Of Deferred Tax Assets And Liabilities

The significant temporary differences that created deferred tax assets and liabilities are shown below:



	September 30,
	2016			2015
	(in thousands)
Deferred tax assets (1):
Net operating loss carryforwards	$	100,033		$	71,533
Foreign tax credits	18,041			15,962
Capitalized research and development expense	22,504			31,690
Pension benefits	14,348			11,009
Deferred revenue	65,145			71,399
Stock-based compensation	19,846			16,777
Other reserves not currently deductible	25,993			21,940
Amortization of intangible assets	54,069			62,227
Other tax credits	41,381			37,270
Depreciation	3,002			3,465
Capital loss carryforward	8,019			8,040
Deferred interest	7,622			3,557
Other	14,778			6,559
Gross deferred tax assets	394,781			361,428
Valuation allowance	(235,503		)	(198,168		)
Total deferred tax assets	159,278			163,260
Deferred tax liabilities (1):
Acquired intangible assets not deductible	(78,663		)	(124,401		)
Pension prepayments	(542		)	(395		)
Deferred revenue	(2,039		)	(3,110		)
Other	(2,092		)	(3,598		)
Total deferred tax liabilities	(83,336		)	(131,504		)
Net deferred tax assets	$	75,942		$	31,756

(1) See Note B. Recent Accounting Pronouncements-Deferred Taxes regarding a change in the balance sheet classification of our deferred taxes.

Summary Of Valuation Allowance

The changes to the valuation allowance were primarily due to:



	Year ended September 30,
	2016			2015			2014
	(in millions)
Valuation allowance beginning of year	$	198.2		$	177.5		$	156.5
Net release of valuation allowance (1)	(3.1		)	(18.7		)	(18.1		)
Net increase/decrease in deferred tax assets with a full valuation allowance	39.8			39.4			14.1
Establish valuation allowance for acquired businesses	—			—			21.5
Establish valuation allowance in foreign jurisdictions	0.6			—			3.5
Valuation allowance end of year	$	235.5		$	198.2		$	177.5


(1)	In 2016, this is attributable to the release in two foreign jurisdictions. In 2015, this is attributable to a reduction in deferred tax assets associated with our U.S. pension plan, both of which are described above and in 2014 the recognition of deferred tax liabilities recorded in connection with accounting for acquisitions.

Schedule Of Unrecognized Tax Benefit



	Year ended September 30,
Unrecognized tax benefits	2016		2015			2014
	(in millions)
Unrecognized tax benefit beginning of year	$	14.1	$	15.0		$	13.7
Tax positions related to current year:
Additions	1.0		1.3			2.2
Tax positions related to prior years:
Additions	0.4		0.8			0.3
Reductions	—		(3.0		)	(0.1		)
Settlements	—		—			(0.6		)
Statute expirations	—		—			(0.5		)
Unrecognized tax benefit end of year	$	15.5	$	14.1		$	15.0

Summary Of Income Tax Examinations Years

As of September 30, 2016, we remained subject to examination in the following major tax jurisdictions for the tax years indicated:



Major Tax Jurisdiction		Open Years
United States		2014 through 2016
Germany		2011 through 2016
France		2013 through 2016
Japan		2011 through 2016
Ireland		2012 through 2016

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Debt (Tables)

12 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

As of September 30, 2016 and 2015, we had the following long-term borrowing obligations:



	September 30,
	2016			2015
	(in thousands)
6.000% Senior notes due 2024	$	500,000		$	—
Credit facility-revolver	258,125			193,125
Credit facility-term loan	—			475,000
Total debt	758,125			668,125
Unamortized debt issuance costs	(10,709		)	(7,587		)
Total debt, net of issuance costs	$	747,416		$	660,538

Reported as
Current portion of long-term debt	$	—		$	50,000
Long-term debt	758,125			618,125
Total debt	$	758,125		$	668,125

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Subparagraph (SX 210.5-02.22)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 942
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
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-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

Commitments and Contingencies Disclosure [Abstract]

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Commitments And Contingencies (Tables)

12 Months Ended

Sep. 30, 2016

Future Minimum Lease Payments

At September 30, 2016, our future minimum lease payments under noncancellable operating leases are as follows:



Year ending September 30,	(in thousands)
2017	$	39,994
2018	34,347
2019	27,150
2020	22,804
2021	14,943
Thereafter	16,776
Total minimum lease payments	$	156,014

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Equity Incentive Plan (Tables)

12 Months Ended

Sep. 30, 2016

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Total Stock Based Compensation Expense

The following table shows total stock-based compensation expense recorded from our stock-based awards as reflected in our Consolidated Statements of Operations:



	Year ended September 30,
	2016		2015		2014
	(in thousands)
Cost of software revenue	$	5,398	$	4,296	$	4,059
Cost of professional services revenue	5,393		5,871		6,351
Sales and marketing	14,659		14,189		13,441
Research and development	10,174		11,623		10,119
General and administrative	30,372		14,203		16,919
Total stock-based compensation expense	$	65,996	$	50,182	$	50,889

Restricted Stock And Restricted Stock Unit Grants



	Restricted Stock Units
Restricted stock unit grants	TSR Units (1)	Performance-based RSUs (2)	Service-based RSUs (2)
	(Number of Units in thousands)
Year ended September 30, 2016	326	343	1,815


(1)	The TSR units were granted to our executive officers pursuant to the terms described below.

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

The significant assumptions used in the Monte Carlo simulation model were as follows:



Average volatility of peer group	28.1	%
Risk free interest rate	1.05	%
Dividend yield	—	%

Value Of Stock Option And Stock-Based Award Activity



	Year ended September 30,
	2016		2015		2014
Value of stock option and stock-based award activity	(in thousands)
Total intrinsic value of stock options exercised	$	88	$	182	$	2,040
Total fair value of restricted stock unit awards vested	$	63,655	$	84,189	$	79,660

Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Restricted Stock Activity



	Shares		Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value as of September 30, 2016
Restricted stock unit activity for the year ended September 30, 2016	(in thousands except grant date fair value data)
Balance of nonvested outstanding restricted stock units October 1, 2015	3,654		$	33.64
Granted	2,484		$	37.25
Vested	(1,818	)	$	30.10
Forfeited or not earned	(544	)	$	36.49
Balance of nonvested outstanding restricted stock units September 30, 2016	3,776		$	37.30	$	167,314

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Pension Plans (Tables)

12 Months Ended

Sep. 30, 2016

Schedule of Available-for-sale Securities [Line Items]

Accounting For The Pension Plans

The following table presents the actuarial assumptions used in accounting for the pension plans:



	U.S. Plan						International Plans
	2016		2015		2014		2016		2015		2014
Weighted average assumptions used to determine benefit obligations at September 30 measurement date:
Discount rate	—	%	—	%	3.80	%	1.3	%	2.2	%	2.4	%
Rate of increase in future compensation	—	%	—	%	—	%	2.8	%	3.0	%	3.0	%
Weighted average assumptions used to determine net periodic pension cost for fiscal years ended September 30:
Discount rate	—	%	3.80	%	4.90	%	2.2	%	2.4	%	3.3	%
Rate of increase in future compensation	—	%	—	%	—	%	3.0	%	3.0	%	3.0	%
Rate of return on plan assets	—	%	1.35	%	7.25	%	5.7	%	5.8	%	5.7	%

Components Of Net Periodic Pension Cost

The actuarially computed components of net periodic pension cost recognized in our Consolidated Statements of Operations for each year are shown below:



	U.S. Plan								International Plans
	2016		2015			2014			2016			2015			2014
	(in thousands)
Interest cost of projected benefit obligation	$	—	$	4,591		$	5,461		$	1,374		$	1,828		$	2,442
Service cost	—		—			—			1,599			1,466			1,659
Expected return on plan assets	—		(1,364		)	(7,151		)	(3,305		)	(3,364		)	(2,506		)
Amortization of prior service cost	—		—			—			(5		)	(4		)	(5		)
Recognized actuarial loss	—		2,577			2,213			2,292			1,815			1,181
Settlement loss	—		66,332			—			—			—			—
Net periodic pension cost	$	—	$	72,136		$	523		$	1,955		$	1,741		$	2,771

Change In Benefit Obligation And Plan Assets

The following tables display the change in benefit obligation and the change in the plan assets and funded status of the plans as well as the amounts recognized in our Consolidated Balance Sheets:



	U.S. Plan					International Plans						Total
	Year ended September 30,
	2016		2015			2016			2015			2016			2015
	(in thousands)
Change in benefit obligation:
Projected benefit obligation—beginning of year	$	—	$	134,453		$	78,188		$	84,106		$	78,188		$	218,559
Service cost	—		—			1,599			1,466			1,599			1,466
Interest cost	—		4,591			1,374			1,828			1,374			6,419
Actuarial loss	—		1,606			10,556			1,988			10,556			3,594
Foreign exchange impact	—		—			2,431			(9,515		)	2,431			(9,515		)
Participant contributions	—		—			147			198			147			198
Benefits paid	—		(5,300		)	(1,600		)	(1,883		)	(1,600		)	(7,183		)
Settlements	—		(135,350		)	—			—			—			(135,350		)
Projected benefit obligation—end of year	$	—	$	—		$	92,695		$	78,188		$	92,695		$	78,188
Change in plan assets and funded status:
Plan assets at fair value—beginning of year	$	—	$	112,859		$	57,961		$	44,491		$	57,961		$	157,350
Actual return on plan assets	—		2,316			1,742			(438		)	1,742			1,878
Employer contributions	—		25,475			1,978			21,225			1,978			46,700
Participant contributions	—		—			147			198			147			198
Foreign exchange impact	—		—			1,707			(5,632		)	1,707			(5,632		)
Settlements	—		(135,350		)	—			—			—			(135,350		)
Benefits paid	—		(5,300		)	(1,600		)	(1,883		)	(1,600		)	(7,183		)
Plan assets at fair value—end of year	—		—			61,935			57,961			61,935			57,961
Projected benefit obligation—end of year	—		—			92,695			78,188			92,695			78,188
Underfunded status	$	—	$	—		$	(30,760	)	$	(20,227	)	$	(30,760	)	$	(20,227	)
Accumulated benefit obligation—end of year	$	—	$	—		$	88,768		$	74,928		$	88,768		$	74,928
Amounts recognized in the balance sheet:
Non-current liability	$	—	$	—		$	(30,760	)	$	(20,227	)	$	(30,760	)	$	(20,227	)
Current liability	$	—	$	—		$	—		$	—		$	—		$	—
Amounts in accumulated other comprehensive loss:
Unrecognized actuarial loss	$	—	$	—		$	38,667		$	28,339		$	38,667		$	28,339

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year

The following table shows change in accumulated other comprehensive loss:



	U.S. Plan					International Plans						Total
	Year ended September 30,
	2016		2015			2016			2015			2016			2015
	(in thousands)
Accumulated other comprehensive loss- beginning of year	$	—	$	68,256		$	28,339		$	27,669		$	28,339		$	95,925
Recognized during year - net actuarial (losses)	—		(2,577		)	(2,288		)	(1,811		)	(2,288		)	(4,388		)
Occurring during year - settlement loss	—		(66,332		)	—			—			—			(66,332		)
Occurring during year - net actuarial losses	—		653			12,119			5,792			12,119			6,445
Foreign exchange impact	—		—			497			(3,311		)	497			(3,311		)
Accumulated other comprehensive loss- end of year	$	—	$	—		$	38,667		$	28,339		$	38,667		$	28,339

Percentage Of Total Plan Assets

The following table shows the percentage of total plan assets for each major category of plan assets:



	International Plans
	September 30,
	2016	2015
Asset category:
Equity securities	49%	53%
Fixed income securities	30%	32%
Commodities	4%	—%
Insurance company	16%	13%
Cash	1%	2%
	100%	100%

Expected Future Benefit Payments

As of September 30, 2016, benefit payments expected to be paid over the next ten years are outlined in the following table:



	Future Benefit Payments
	(in thousands)
Year ending September 30,
2017	$	1,899
2018	2,314
2019	2,566
2020	2,861
2021	3,175
2022 to 2026	22,034

International Plan Assets [Member]

Schedule of Available-for-sale Securities [Line Items]

Fair Value Of Plan Assets



	September 30, 2016
	Level 1		Level 2		Level 3		Total
	(in thousands)
International plan assets:
Fixed income securities:
Government	$	8,518	$	—	$	—	$	8,518
Europe corporate investment grade	10,218		—		—		10,218
Europe large capitalization stocks	30,615		—		—		30,615
Commodities	2,709		—		—		2,709
Insurance company funds (1)	—		9,578		—		9,578
Cash	297		—		—		297
	$	52,357	$	9,578	$	—	$	61,935



	September 30, 2015
	Level 1		Level 2		Level 3		Total
	(in thousands)
International plan assets:
Fixed income securities:
Government	$	11,086	$	—	$	—	$	11,086
Europe corporate investment grade	7,487		—		—		7,487
Europe large capitalization stocks	30,887		—		—		30,887
Insurance company funds (1)	—		7,668		—		7,668
Cash	833		—		—		833
	$	50,293	$	7,668	$	—	$	57,961

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Derivative Financial Instruments Derivative Financial Instruments (Tables)

12 Months Ended

Sep. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Notional Amounts of Outstanding Forward Contracts

As of September 30, 2016 and 2015, we had outstanding forward contracts designated as cash flow hedges with notional amounts equivalent to the following:



Currency Hedged	September 30, 2016		September 30, 2015
	(in thousands)
Euro / U.S. Dollar	$	26,181	$	—
Japanese Yen / U.S. Dollar	8,800		—
SEK / U.S. Dollar	4,078		—
Total	$	39,059	$	—

As of September 30, 2016 and 2015, we had outstanding forward contracts for derivatives not designated as hedging instruments with notional amounts equivalent to the following:



	September 30,
Currency Hedged	2016		2015
	(in thousands)
Canadian/U.S. Dollar	$	14,685	$	17,448
Euro/U.S. Dollar	174,120		82,917
British Pound/Euro	1,382		9,409
Israeli Sheqel/U.S. Dollar	7,271		4,607
Japanese Yen/Euro	32,782		25,133
Japanese Yen/U.S. Dollar	6,716		—
Swiss Franc/U.S. Dollar	730		5,149
All other	11,848		12,592
Total	$	249,534	$	157,255

Derivative Instruments, Gain (Loss) [Table Text Block]

The following table shows the effect of the our derivative instruments designated as cash flow hedges in the Consolidated Statements of Operations for the twelve months ended September 30, 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

Twelve Months Ended

September 30,
2016

Forward Contracts

(3,859

)

Software Revenue

(2,436

)

Other Income (Expense)

(24

)

The following table shows the effect of our non-designated hedges in the Consolidated Statements of Operations for the twelve months ended September 30, 2016 and 2015:



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)
		Twelve months ended
		September 30, 2016			September 30, 2015		September 30, 2014
		(in thousands)
Forward Contracts	Other Income (Expense)	$	(883	)	$	615	$	(3,769	)

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

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
	September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
	(in thousands)				(in thousands)
Derivative assets (a):
Forward Contracts	$	44	$	—	$	216	$	507
Derivative liabilities (b):
Forward Contracts	$	1,477	$	—	$	1,693	$	46
(a) All derivative assets are recorded in “other current assets” in the Consolidated Balance Sheets.
(b) All derivative liabilities are recorded in "accrued expenses and other current liabilities" in the Consolidated Balance Sheets.

Offsetting Assets [Table Text Block]

The following table sets forth the offsetting of derivative assets as of September 30, 2016:



	Gross Amounts Offset in the Consolidated Balance Sheets						Gross Amounts Not Offset in the Consolidated Balance Sheets
September 30, 2016	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	$	260	$	—	$	260	$	(260	)	$	—	$	—

Offsetting Liabilities [Table Text Block]

The following table sets forth the offsetting of derivative liabilities as of September 30, 2016:



	Gross Amounts Offset in the Consolidated Balance Sheets						Gross Amounts Not Offset in the Consolidated Balance Sheets
September 30, 2016	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	$	3,170	$	—	$	3,170	$	(260	)	$	—	$	2,910

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Segment Information (Tables)

12 Months Ended

Sep. 30, 2016

Operating Segments [Member]

Segment Reporting Information [Line Items]

Revenue And Operating Income



	Year ended September 30,
	2016			2015		2014
	(in thousands)
Solutions Group
Revenue	$	871,225		$	980,274	$	1,073,426
Direct costs	186,174			224,042		244,020
Profit	685,051			756,232		829,406

IoT Group
Revenue	72,371			49,249		4,815
Direct costs	83,747			28,998		8,534
Profit (loss)	(11,376		)	20,251		(3,719		)

Professional Services
Revenue	196,937			225,719		278,726
Direct costs	165,325			193,397		237,689
Profit	31,612			32,322		41,037

Total segment revenue	1,140,533			1,255,242		1,356,967
Total segment costs	435,246			446,437		490,243
Total segment profit	705,287			808,805		866,724

Other unallocated operating expenses (1)	666,028			723,780		641,742
Restructuring charges	76,273			43,409		28,406
Total operating income (loss)	(37,014		)	41,616		196,576
Interest and other expense, net	30,178			15,091		10,464
Income (loss) before income taxes	$	(67,192	)	$	26,525	$	186,112

(1)

Products and Services Segments [Member]

Segment Reporting Information [Line Items]

Revenue And Operating Income



	Year ended September 30,
	2016		2015		2014
	(in thousands)
CAD	$	462,307	$	511,582	$	581,508
PLM	456,285		524,741		599,312
SLM	141,644		166,060		170,980
IoT	80,297		52,859		5,167
Total revenue	$	1,140,533	$	1,255,242	$	1,356,967

Geographical Segments [Member]

Segment Reporting Information [Line Items]

Revenue And Operating Income

Revenue and long-lived tangible assets for the geographic regions in which we operate is presented below.



	Year ended September 30,
	2016		2015		2014
	(in thousands)
Revenue:
Americas (1)	$	487,594	$	530,311	$	558,671
Europe (2)	424,268		467,805		528,090
Pacific Rim	123,766		139,165		148,151
Japan	104,905		117,961		122,055
Total revenue	$	1,140,533	$	1,255,242	$	1,356,967



	September 30,
	2016		2015		2014
	(in thousands)
Long-lived tangible assets:
Americas (3)	$	48,281	$	47,509	$	51,027
Europe	6,915		7,424		7,020
Asia-Pacific	11,917		10,229		9,736
Total long-lived tangible assets	$	67,113	$	65,162	$	67,783


(1)	Includes revenue in the United States totaling $463.1 million, $500.6 million and $518.7 million for 2016, 2015 and 2014, respectively.


(2)	Includes revenue in Germany totaling $167.2 million, $177.1 million and $200.3 million for 2016, 2015 and 2014, respectively.


(3)	Substantially all of the Americas long-lived tangible assets are located in the United States.

XML 63 R39.htm IDEA: XBRL DOCUMENT

Subsequent Events (Tables)

12 Months Ended

Sep. 30, 2016

Subsequent Events [Abstract]

Schedule Of Restricted Units Granted



	TSR units		Performance-Based RSUs		Time-Based RSUs
	(in thousands)
Maximum number of RSUs eligible to vest	495		316		711
Intrinsic value on grant date based on the maximum number of RSUs eligible to vest	$	23,482	$	14,991	$	33,731

XML 64 R40.htm IDEA: XBRL DOCUMENT

Description of Business and Basis of Presentation Reclassification (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2016 USD ($) revenue_category	Sep. 30, 2015 USD ($) revenue_category	Sep. 30, 2014 USD ($) revenue_category
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenue, Net	$ 1,140,533	$ 1,255,242	$ 1,356,967
Number of Revenue Categories \| revenue_category	4	3	3
Number of Cost of Revenue Categories \| revenue_category	2	3	3
Perpetual license	$ 173,467	$ 282,760	$ 362,602
Subscription	118,322	65,239	27,137
Cost of software revenue	$ 155,439	135,992	129,708
From License and Subscription to Perpetual License [Member] [Domain] \| Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Perpetual license		282,800	362,600
From License and Subscription to Subscription License [Member] [Domain] \| Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Subscription		65,200	27,100
From License and Subscription to Software [Member] [Domain] \| Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of software revenue		53,200	45,000
From Support to Software [Member] [Domain] \| Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of software revenue		82,800	84,700
From General and Administration to Selling and Marketing [Member] \| Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of software revenue		8,000	$ 10,000
Out of Period Correction [Member] \| Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenue, Net		$ 6,400

XML 65 R41.htm IDEA: XBRL DOCUMENT

Description of Business and Basis of Presentation Segment Information (Details) - segments	3 Months Ended	6 Months Ended	12 Months Ended
	Sep. 30, 2016	Apr. 02, 2016	Sep. 30, 2016
Segment Reporting [Abstract]
Number of reportable segments	3	2	3

XML 66 R42.htm IDEA: XBRL DOCUMENT

Summary Of Significant Accounting Policies (Narrative) (Details)	3 Months Ended				12 Months Ended
	Jul. 02, 2016	Jan. 02, 2016 customers	Jan. 03, 2015 customers	Dec. 28, 2013 customers	Sep. 30, 2016 USD ($) primary_source customers mo	Sep. 30, 2015 USD ($) customers	Sep. 30, 2014 USD ($)	Sep. 30, 2013 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Cost Method Investments					$ 11,600,000	$ 11,000,000
Deferred tax assets					$ 0	$ 36,803,000
Maximum payment terms on software purchases for credit-worthy customers (in months) \| mo					24
Subscription revenue, number of primary sources \| primary_source					2
Trade Accounts Receivable Major Number of Customers \| customers					0	0
Revenue Major Number of Customers \| customers		0	0	0
Ceiling percentage of revenue for major customer					10.00%
Contingent consideration					$ 19,570,000	$ 13,000,000	$ 15,191,000
Allowance for doubtful accounts receivable					1,000,000	1,000,000	1,600,000	$ 3,000,000
Accounts receivable written-off, net of recoveries					300,000	800,000	600,000
Bad debt expense including general and administrative expense					300,000	200,000	(800,000)
Financing receivables					7,135,000	27,434,000
Financing receivables past due					100,000	500,000
Sale of finance receivable					0	3,000,000	24,500,000
Advertising expense					2,100,000	1,100,000	2,200,000
Development costs for software					0	0	0
Capitalized software in connection with acquisition					69,900,000	13,600,000
Cumulative translation adjustment gains (loss)					(71,200,000)	(71,600,000)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax					(38,667,000)	(28,339,000)
Pension benefits net of tax					(27,400,000)	(20,100,000)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Before Tax					1,400,000
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax					1,200,000	0
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax					(100,000)	0
Uncollectible financing receivables written-off					0	0	$ 0
Deferred tax liabilities					0	1,622,000
Accounts Receivable [Member]
Summary Of Significant Accounting Policies [Line Items]
Financing receivables, current					7,100,000	21,800,000
Other Assets [Member]
Summary Of Significant Accounting Policies [Line Items]
Billed but uncollected support and subscription receivable					126,300,000	129,300,000
Long-term accounts receivable from customers for contracts with extended payment terms					0	5,600,000
Standard & Poor's, BBB-1 Rating and Above-Tier 1 [Member]
Summary Of Significant Accounting Policies [Line Items]
Financing receivables					5,953,000	16,841,000
Internally Assigned Grade, Tier 2 [Member]
Summary Of Significant Accounting Policies [Line Items]
Financing receivables					1,182,000	10,593,000
Internally Assigned Grade, Tier 3 [Member]
Summary Of Significant Accounting Policies [Line Items]
Financing receivables					$ 0	0
Minimum [Member] \| Computer Hardware And Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period (in years)					3 years
Minimum [Member] \| Furniture And Fixtures [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period (in years)					3 years
Maximum [Member] \| Purchased Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period (in years)					11 years
Maximum [Member] \| Customer Lists [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period (in years)					12 years
Maximum [Member] \| Trademarks And Trade Names [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period (in years)					12 years
Maximum [Member] \| Computer Hardware And Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period (in years)					5 years
Maximum [Member] \| Furniture And Fixtures [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period (in years)					8 years
Foreign Exchange Forward [Member]
Summary Of Significant Accounting Policies [Line Items]
Derivative maturity (in months)					3 months
Unallocated Financing Receivables [Member]
Summary Of Significant Accounting Policies [Line Items]
Reserve for credit losses					$ 0	$ 0
Current portion [Member]
Summary Of Significant Accounting Policies [Line Items]
Contingent consideration					11,800,000
Non-current portion [Member] [Member]
Summary Of Significant Accounting Policies [Line Items]
Contingent consideration					$ 7,800,000
Designated as Hedging Instrument [Member] \| Foreign Exchange Forward [Member]
Summary Of Significant Accounting Policies [Line Items]
Derivative, Remaining Maturity	13 months

XML 67 R43.htm IDEA: XBRL DOCUMENT

Summary Of Significant Accounting Policies (Deferred Revenue) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 413,657	$ 386,850
Deferred Subscription Revenue Member [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenue	102,847	37,478
Deferred Support Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenue	297,684	331,793
Deferred Professional Service Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenue	8,975	12,639
Deferred License and Subscription Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Deferred revenue	$ 4,151	$ 4,940

XML 68 R44.htm IDEA: XBRL DOCUMENT

Summary Of Significant Accounting Policies (Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - USD ($)
$ in Thousands

Sep. 30, 2016

Sep. 30, 2015

Sep. 30, 2014

^[1]

$ 60,139

$ 91,216

49,616

260

507

110,015

91,723

19,570

13,000

$ 15,191

3,170

22,740

13,046

Level 1 [Member]

^[1]

60,139

91,216

94,740

91,216

Level 2 [Member]

260

507

15,275

507

3,170

3,170

Level 3 [Member]

19,570

13,000

Certificates of Deposit [Member]

19,570

$ 13,000

Certificates of Deposit [Member] | Level 1 [Member]

681

Certificates of Deposit [Member] | Level 2 [Member]

Certificates of Deposit [Member] | Level 3 [Member]

681

Commercial Paper [Member]

Commercial Paper [Member] | Level 1 [Member]

11,925

Commercial Paper [Member] | Level 2 [Member]

Commercial Paper [Member] | Level 3 [Member]

11,925

Corporate Bond Securities [Member]

Corporate Bond Securities [Member] | Level 1 [Member]

34,601

Corporate Bond Securities [Member] | Level 2 [Member]

34,601

Corporate Bond Securities [Member] | Level 3 [Member]

US Government Agencies Debt Securities [Member]

US Government Agencies Debt Securities [Member] | Level 1 [Member]

2,409

US Government Agencies Debt Securities [Member] | Level 2 [Member]

US Government Agencies Debt Securities [Member] | Level 3 [Member]

2,409

$ 0

[1]	Money market funds and time deposits.

XML 69 R45.htm IDEA: XBRL DOCUMENT

Summary Of Significant Accounting Policies (Earnings Per Share Basic And Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Jan. 02, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Accounting Policies [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,700
Net income		$ (54,465)	$ 47,557	$ 160,194
Weighted average shares outstanding (in shares)		114,612	114,775	118,094
Dilutive effect of employee stock options, restricted shares and restricted stock units (in shares)		0	1,237	1,890
Diluted weighted average shares outstanding (in shares)		114,612	116,012	119,984
Basic earnings (loss) per share (in USD per share)		$ (0.48)	$ 0.41	$ 1.36
Diluted earnings (loss) per share (in USD per share)		$ (0.48)	$ 0.41	$ 1.34

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References + Details

Goodwill (not amortized), Net Book Value

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

XML 70 R46.htm IDEA: XBRL DOCUMENT

Summary Of Significant Accounting Policies (Related Party Transaction) (Details) - Director [Member] - Restricted Stock [Member] - USD ($) $ in Thousands		15 Months Ended
	Nov. 27, 2013	Mar. 04, 2015
Related Party Transaction [Line Items]
Granted, value	$ 200
Shares granted	6,213
Total fee paid		$ 240

XML 71 R47.htm IDEA: XBRL DOCUMENT

Summary Of Significant Accounting Policies (Marketable Securities - Amortized Cost and Fair Value) (Details) $ in Thousands	Sep. 30, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 49,738
Gross unrealized gains	0
Gross unrealized losses	(122)
Fair value	49,616
Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis	18,585
Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value	18,549
Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Amortized Cost Basis	31,153
Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Fair Value	31,067
Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	681
Gross unrealized gains	0
Gross unrealized losses	0
Fair value	681
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	11,945
Gross unrealized gains	0
Gross unrealized losses	(20)
Fair value	11,925
Corporate Bond Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	34,701
Gross unrealized gains	0
Gross unrealized losses	(100)
Fair value	34,601
US Government Agencies Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	2,411
Gross unrealized gains	0
Gross unrealized losses	(2)
Fair value	$ 2,409

XML 72 R48.htm IDEA: XBRL DOCUMENT

Summary Of Significant Accounting Policies Summary Of Significant Accounting Policies (Contingent Consideration Liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Contingent consideration, beginning balance	$ 13,000	$ 15,191
Contingent consideration at acquisition	16,900	3,800
Change in fair value of contingent consideration	1,170	3,009
Payment of contingent consideration	(11,500)	(9,000)
Contingent consideration, ending balance	19,570	13,000
Acquired entity name-ThingWorx [Member]
Business Acquisition [Line Items]
Contingent consideration, beginning balance	9,000	15,191
Contingent consideration at acquisition	0	0
Change in fair value of contingent consideration	0	2,809
Payment of contingent consideration	(9,000)	(9,000)
Contingent consideration, ending balance	0	9,000
Acquired entity name: ColdLight [Member]
Business Acquisition [Line Items]
Contingent consideration, beginning balance	4,000	0
Contingent consideration at acquisition	0	3,800
Change in fair value of contingent consideration	1,000	200
Payment of contingent consideration	(2,500)	0
Contingent consideration, ending balance	2,500	4,000
Acquired entity name: Kepware [Member]
Business Acquisition [Line Items]
Contingent consideration, beginning balance	0	0
Contingent consideration at acquisition	16,900	0
Change in fair value of contingent consideration	170	0
Payment of contingent consideration	0	0
Contingent consideration, ending balance	$ 17,070	$ 0

XML 73 R49.htm IDEA: XBRL DOCUMENT

Restructuring Charges (Narrative) (Details) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
Restructuring Charges (Narrative) (Details) $ in Thousands	Sep. 30, 2014 USD ($) employees	Jul. 02, 2016 employee	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($) employee	Sep. 30, 2014 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 76,273	$ 43,409	$ 28,406
Number of employees associated with costs \| employees	283
Employee Severance And Related Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges			74,929	41,997	27,918
Facility Closures and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges			1,344	$ 1,412	488
Restructuring Plan 2016
Restructuring Cost and Reserve [Line Items]
Restructuring charges			76,900
Restructuring and Related Cost, Number of Positions Eliminated \| employee		810
Restructuring Plan 2016 \| Employee Severance And Related Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges			74,900
Restructuring Plan 2016 \| Facility Closures and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges			1,300
Restructuring Plan 2015
Restructuring Cost and Reserve [Line Items]
Restructuring charges			600
Restructuring and Related Cost, Number of Positions Eliminated \| employee				411
Restructuring Plan 2015 \| Employee Severance And Related Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges				$ 42,000
Restructuring Plan 2015 \| Facility Closures and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1,400
Operating Leases, Rent Expense, Minimum Rentals				2,300
Operating Leases, Sublease Revenue				$ 900
Restructuring Plan 2014
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 26,800
Restructuring Plan 2013
Restructuring Cost and Reserve [Line Items]
Restructuring charges					$ 1,600
Maximum [Member] \| Restructuring Plan 2016
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 80,000

XML 74 R50.htm IDEA: XBRL DOCUMENT

Restructuring Charges (Details) - USD ($) $ in Thousands	12 Months Ended
Restructuring Charges (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Restructuring Reserve [Roll Forward]
Balance, beginning of period	$ 15,254	$ 26,370	$ 19,529
Restructuring charges	76,273	43,409	28,406
Cash disbursements	(55,019)	(53,588)	(20,575)
Foreign currency impact	100	(937)	(990)
Balance, end of period	36,608	15,254	26,370
Employee Severance And Related Benefits
Restructuring Reserve [Roll Forward]
Balance, beginning of period	14,086	25,835	19,234
Restructuring charges	74,929	41,997	27,918
Cash disbursements	(53,966)	(52,882)	(20,334)
Foreign currency impact	128	(864)	(983)
Balance, end of period	35,177	14,086	25,835
Facility Closures and Other Costs
Restructuring Reserve [Roll Forward]
Balance, beginning of period	1,168	535	295
Restructuring charges	1,344	1,412	488
Cash disbursements	(1,053)	(706)	(241)
Foreign currency impact	(28)	(73)	(7)
Balance, end of period	$ 1,431	$ 1,168	$ 535

XML 75 R51.htm IDEA: XBRL DOCUMENT

Acquisitions (Narrative) (Details) $ in Thousands	1 Months Ended		3 Months Ended		12 Months Ended
Acquisitions (Narrative) (Details) $ in Thousands	Apr. 30, 2016 USD ($)	Jul. 31, 2015 USD ($)	Apr. 02, 2016 USD ($)	Mar. 29, 2014 USD ($)	Sep. 30, 2016 USD ($) employee	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Jan. 12, 2016 USD ($)	Nov. 03, 2015 USD ($)	May 07, 2015 USD ($)
Acquisition-related cost					$ 3,500	$ 8,900	$ 12,700
Payments to Acquire Businesses, Net of Cash Acquired					165,802	98,411	323,525
Payment of contingent consideration					11,500	9,000
Payments to Business Combination Contingent Consideration Financing Activities					10,621	4,323	0
Credit facility, borrowings outstanding					758,125	618,125
Revenue, Net					1,140,533	1,255,242	1,356,967
Costs and Expenses					851,882	878,892	786,708
ThingWorx, Inc. [Member]
Payments to Acquire Businesses, Net of Cash Acquired				$ 111,500
Acquisition of businesses, net cash acquired				100
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High				$ 18,000
Payment of contingent consideration	$ 9,000	$ 9,000
Payments to Business Combination Contingent Consideration Financing Activities	8,700	4,300
Payments to Business Combination Contingent Consideration	$ 300	$ 4,700
2014 Acquisitions [Member]
Deferred Tax Liabilities, Net							21,600
Acquired entity name: ColdLight [Member]
Contingent consideration					2,500					$ 3,800
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High										$ 5,000
Payment of contingent consideration					2,500	0
Goodwill acquired						85,288
Finite-lived Intangible Assets Acquired						17,620
Payments to Business Combination Contingent Consideration Financing Activities					1,900
Payments to Business Combination Contingent Consideration					600
Axeda and Atego Acquisitions [Member]
Deferred Tax Liabilities, Net							12,600
Payments to Acquire Businesses, Net of Cash Acquired							212,000
Acquisition of businesses, net cash acquired							13,100
Goodwill acquired							157,700
Finite-lived Intangible Assets Acquired							$ 86,900
Acquired entity name: Kepware [Member]
Payments to Acquire Businesses, Net of Cash Acquired					99,410	98,592
Acquisition of businesses, net cash acquired					590	1,313
Contingent consideration					17,100			$ 16,900
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High								18,000
Estimated contingent consideration payment in 2017								9,600
Payment of contingent consideration					0	0
Goodwill acquired			$ 77,081		77,081
Finite-lived Intangible Assets Acquired					34,500
Business acquisition, acquired net assets excluding goodwill, intangible assets and cash					4,729
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, Low					16,900	3,800
Revenue, Net					16,000
Costs and Expenses					15,000
Acquired entity name: Vuforia [Member]
Payments to Acquire Businesses, Net of Cash Acquired					64,777
Acquisition of businesses, net cash acquired					4,466
Goodwill acquired					23,316
Finite-lived Intangible Assets Acquired					41,200
Business acquisition, acquired net assets excluding goodwill, intangible assets and cash					$ 261
Weighted average useful lives of acquired intangible assets					6 years
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, Low					$ 0
Number of employees in acquired entity \| employee					80
Purchased Software [Member]
Weighted average useful lives of acquired intangible assets					9 years
Purchased Software [Member] \| Acquired entity name: ColdLight [Member]
Finite-lived Intangible Assets Acquired						13,600
Purchased Software [Member] \| Acquired entity name: Kepware [Member]
Finite-lived Intangible Assets Acquired					$ 28,700
Weighted average useful lives of acquired intangible assets					10 years
Customer Lists [Member]
Weighted average useful lives of acquired intangible assets					10 years
Customer Lists [Member] \| Acquired entity name: ColdLight [Member]
Finite-lived Intangible Assets Acquired						3,500
Customer Lists [Member] \| Acquired entity name: Kepware [Member]
Finite-lived Intangible Assets Acquired					$ 5,200
Weighted average useful lives of acquired intangible assets					10 years
Trademarks and Trade Names [Member] \| Acquired entity name: ColdLight [Member]
Finite-lived Intangible Assets Acquired						500
Trademarks and Trade Names [Member] \| Acquired entity name: Kepware [Member]
Finite-lived Intangible Assets Acquired					$ 600
Weighted average useful lives of acquired intangible assets					6 years
Line of Credit [Member]
Credit facility, borrowings outstanding					$ 258,125	$ 193,125
Line of Credit [Member] \| Acquired entity name: Kepware [Member]
Credit facility, borrowings outstanding								$ 100,000
Line of Credit [Member] \| Acquired entity name: Vuforia [Member]
Credit facility, borrowings outstanding									$ 50,000

XML 76 R52.htm IDEA: XBRL DOCUMENT

Property And Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Property And Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Property, Plant and Equipment [Abstract]
Computer hardware and software	$ 267,928	$ 246,756
Furniture and fixtures	20,742	18,370
Leasehold improvements	43,769	38,005
Gross property and equipment	332,439	303,131
Accumulated depreciation and amortization	(265,326)	(237,969)
Net property and equipment	67,113	65,162	$ 67,783
Depreciation expense	$ 28,800	$ 28,900	$ 27,100

XML 77 R53.htm IDEA: XBRL DOCUMENT

Acquisitions Acquisitions (Purchase Price Allocation) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 02, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		$ 165,802	$ 98,411	$ 323,525
Acquired entity name: Kepware [Member]
Business Acquisition [Line Items]
Goodwill	$ 77,081	77,081
Identifiable intangible assets		34,500
Cash		590	1,313
Other assets and liabilities, net		4,729
Total allocation of purchase price consideration		116,900	103,705
Less: cash acquired		(590)	(1,313)
Total purchase price allocation, net of cash acquired		116,310	102,392
Less: contingent consideration		(16,900)	(3,800)
Payments to Acquire Businesses, Net of Cash Acquired		99,410	$ 98,592
Acquired entity name: Vuforia [Member]
Business Acquisition [Line Items]
Goodwill		23,316
Identifiable intangible assets		41,200
Cash		4,466
Other assets and liabilities, net		261
Total allocation of purchase price consideration		69,243
Less: cash acquired		(4,466)
Total purchase price allocation, net of cash acquired		64,777
Less: contingent consideration		0
Payments to Acquire Businesses, Net of Cash Acquired		$ 64,777

XML 78 R54.htm IDEA: XBRL DOCUMENT

Goodwill and Acquired Intangible Assets (Narrative) (Details) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Sep. 30, 2016 USD ($) segments	Apr. 02, 2016 segments	Sep. 30, 2016 USD ($) segments	Sep. 30, 2015 USD ($)
Number of reportable segments \| segments	3	2	3
Estimated aggregate future amortization expense for intangible assets, 2016	$ 58.0		$ 58.0
Estimated aggregate future amortization expense for intangible assets, 2017	57.0		57.0
Estimated aggregate future amortization expense for intangible assets, 2018	49.9		49.9
Estimated aggregate future amortization expense for intangible assets, 2019	47.2		47.2
Estimated aggregate future amortization expense for intangible assets, 2020	41.8		41.8
Estimated aggregate future amortization expense for intangible assets, thereafter	56.5		56.5
Solutions Group [Member]
Goodwill and acquired intangible assets	1,196.6		1,196.6
Technology Platform Group [Member]
Goodwill and acquired intangible assets	252.8		252.8
Professional Services [Member]
Goodwill and acquired intangible assets	$ 30.7		$ 30.7
Software Products [Member]
Goodwill and acquired intangible assets				$ 1,297.9
Services [Member]
Goodwill and acquired intangible assets				$ 62.4

XML 79 R55.htm IDEA: XBRL DOCUMENT

Goodwill and Acquired Intangible Assets (Goodwill and Acquired Intangible Assets) (Details) - USD ($)
$ in Thousands

12 Months Ended

Sep. 30, 2016

Jul. 02, 2016

Sep. 30, 2015

Sep. 30, 2014

$ 1,169,813

$ 1,169,660

$ 1,069,041

$ 1,012,527

Intangible assets with finite lives (amortized), Gross Carrying Amount

756,132

679,552

Intangible assets with finite lives (amortized), Accumulated Amortization

445,827

388,251

Intangible assets with finite lives (amortized), Net Book Value

310,305

291,301

Total goodwill and acquired intangible assets

1,480,118

1,360,342

Purchased Software [Member]

Intangible assets with finite lives (amortized), Gross Carrying Amount

^[1]

354,595

284,257

Intangible assets with finite lives (amortized), Accumulated Amortization

^[1]

199,192

174,887

Intangible assets with finite lives (amortized), Net Book Value

^[1]

$ 155,403

109,370

Capitalized Software [Member]

9 years

Intangible assets with finite lives (amortized), Gross Carrying Amount

^[1]

$ 22,877

22,877

Intangible assets with finite lives (amortized), Accumulated Amortization

^[1]

22,877

Intangible assets with finite lives (amortized), Net Book Value

^[1]

Customer Lists [Member]

Intangible assets with finite lives (amortized), Gross Carrying Amount

^[1]

355,698

349,938

Intangible assets with finite lives (amortized), Accumulated Amortization

^[1]

206,515

174,017

Intangible assets with finite lives (amortized), Net Book Value

^[1]

$ 149,183

175,921

Trademarks And Trade Names [Member]

10 years

Intangible assets with finite lives (amortized), Gross Carrying Amount

^[1]

$ 19,007

18,534

Intangible assets with finite lives (amortized), Accumulated Amortization

^[1]

13,323

12,759

Intangible assets with finite lives (amortized), Net Book Value

^[1]

$ 5,684

5,775

Intangible assets with finite lives (amortized), Gross Carrying Amount

10 years

Other [Member]

^[1]

$ 3,955

3,946

Intangible assets with finite lives (amortized), Accumulated Amortization

^[1]

3,920

3,711

Intangible assets with finite lives (amortized), Net Book Value

^[1]

$ 35

$ 235

3 years

[1]	The weighted average useful lives of purchased software, capitalized software, customer lists and relationships, trademarks and trade names and other intangible assets with a remaining net book value are 9 years, 10 years, 10 years and 3 years, respectively.

XML 80 R56.htm IDEA: XBRL DOCUMENT

Goodwill and Acquired Intangible Assets (Schedule Of Movements of Goodwill by Reportable Segment) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended	12 Months Ended
	Sep. 30, 2016	Apr. 02, 2016	Jan. 02, 2016	Apr. 02, 2016	Sep. 30, 2016	Sep. 30, 2015
Goodwill [Roll Forward]
Balance, beginning of period	$ 1,169,660		$ 1,069,041	$ 1,069,041	$ 1,069,041	$ 1,012,527
Foreign currency translation and other adjustments	153			222		(28,594)
Balance, end of period	1,169,813				1,169,813	1,069,041
Software Products [Member]
Goodwill [Roll Forward]
Balance, beginning of period	1,117,038		1,016,413	1,016,413	1,016,413	959,768
Foreign currency translation and other adjustments				228		(28,463)
Balance, end of period						1,016,413
Services [Member]
Goodwill [Roll Forward]
Balance, beginning of period	52,622		52,628	52,628	52,628	52,759
Foreign currency translation and other adjustments				$ (6)		(131)
Balance, end of period						52,628
Solutions Group [Member]
Goodwill [Roll Forward]
Balance, beginning of period	1,050,013
Foreign currency translation and other adjustments	137
Balance, end of period	1,050,150				1,050,150
Technology Platform Group [Member]
Goodwill [Roll Forward]
Balance, beginning of period	90,053
Foreign currency translation and other adjustments	12
Balance, end of period	90,065				90,065
Professional Services [Member]
Goodwill [Roll Forward]
Balance, beginning of period	29,594
Foreign currency translation and other adjustments	4
Balance, end of period	$ 29,598				29,598
Acquired entity name: Axeda [Member]
Goodwill [Roll Forward]
Adjustment of purchase price from escrow						(180)
Acquired entity name: Axeda [Member] \| Software Products [Member]
Goodwill [Roll Forward]
Adjustment of purchase price from escrow						(180)
Acquired entity name: Axeda [Member] \| Services [Member]
Goodwill [Roll Forward]
Adjustment of purchase price from escrow						0
Acquired entity name: ColdLight [Member]
Goodwill [Roll Forward]
Goodwill acquired						85,288
Acquired entity name: ColdLight [Member] \| Software Products [Member]
Goodwill [Roll Forward]
Goodwill acquired						85,288
Acquired entity name: ColdLight [Member] \| Services [Member]
Goodwill [Roll Forward]
Goodwill acquired						$ 0
Vuforia Acquisition [Member]
Goodwill [Roll Forward]
Goodwill acquired			23,316
Vuforia Acquisition [Member] \| Software Products [Member]
Goodwill [Roll Forward]
Goodwill acquired			23,316
Vuforia Acquisition [Member] \| Services [Member]
Goodwill [Roll Forward]
Goodwill acquired			$ 0
Acquired entity name: Kepware [Member]
Goodwill [Roll Forward]
Goodwill acquired		$ 77,081			$ 77,081
Acquired entity name: Kepware [Member] \| Software Products [Member]
Goodwill [Roll Forward]
Goodwill acquired		77,081
Acquired entity name: Kepware [Member] \| Services [Member]
Goodwill [Roll Forward]
Goodwill acquired		$ 0

XML 81 R57.htm IDEA: XBRL DOCUMENT

Goodwill and Acquired Intangible Assets (Amortization Of Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of acquired intangible assets	$ 33,198	$ 36,129	$ 32,127
Cost of license and subscription	24,604	19,402	18,112
Total amortization expense	$ 57,802	$ 55,531	$ 50,239

XML 82 R58.htm IDEA: XBRL DOCUMENT

Income Taxes (Narrative) (Details)

3 Months Ended

12 Months Ended

60 Months Ended

Jan. 03, 2015

USD ($)

Sep. 30, 2016

USD ($)

foreign_subsidiary

Sep. 30, 2015

USD ($)

Sep. 30, 2014

USD ($)

foreign_subsidiary

Sep. 30, 2015

USD ($)

Sep. 30, 2013

USD ($)

Effective income tax rate

(19.00%)

(79.00%)

14.00%

Income before income taxes

$ (67,192,000)

$ 26,525,000

$ 186,112,000

Statutory federal income tax rate

(35.00%)

35.00%

Effective Income Tax Rate Reconciliation, Other Adjustments, Amount

$ (28,000,000)

$ (24,000,000)

Decrease of valuation allowance in foreign jurisdictions

3,100,000

Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount

14,500,000

Pension valuation allowance

(18,700,000)

Deferred Other Tax Expense (Benefit)

(1,400,000)

Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount

$ 2,100,000

6,000,000

Effective Income Tax Rate Reconciliation, Foreign Income Tax Withholding, Amount

3,800,000

$ 5,100,000

Other Tax Expense (Benefit)

3,100,000

Change in foreign income tax withholding valuation allowance

$ 600,000

$ 3,500,000

Number of foreign subsidiaries included in valuation allowance | foreign_subsidiary

Prepaid income taxes

$ 9,900,000

8,200,000

$ 8,200,000

Income taxes payable

18,700,000

14,700,000

Accrued income taxes

6,300,000

4,000,000

Other current liabilities

5,500,000

2,200,000

Other liabilities

6,900,000

8,500,000

Income tax payments

25,500,000

30,100,000

$ 25,500,000

Net deferred tax assets

^[1]

75,942,000

31,756,000

Net operating loss related to windfall tax deductions

45,100,000

Interest expense related to income tax accruals

235,503,000

^[1]

198,168,000

^[1]

177,500,000

198,168,000

^[1]

$ 156,500,000

Interest expense

500,000

100,000

300,000

Penalty expense

2,000,000

1,500,000

Accrued tax penalties

Unrecognized tax benefit

15,500,000

14,100,000

15,000,000

14,100,000

$ 13,700,000

Income tax provision upon recognition of unrecognized tax benefit

(13,900,000)

Unrecognized tax benefits, increase in valuation allowance upon recognition

4,800,000

Unrecognized tax benefits, increase to additional paid-in capital upon recognition

1,600,000

Potential decrease in unrecognized tax benefits

8,000,000

Stock-based compensation

65,996,000

50,182,000

50,889,000

Tax benefit recognition related to stock based compensation

700,000

Increase (decrease) in income taxes payable

(6,749,000)

3,536,000

(19,134,000)

Expected deferred tax expense

12,000,000

Undistributed Earnings of Foreign Subsidiaries

789,000,000

684,000,000

Deferred Tax Assets, Tax Credit Carryforwards, Foreign

^[1]

18,041,000

15,962,000

$ 15,962,000

14,000,000

Domestic Country [Member]

247,100,000

Deferred Tax Assets, Tax Credit Carryforwards, Foreign

209,000,000

18,000,000

Domestic Country [Member] | Research Tax Credit Carryforward [Member]

State - Massachusetts [Member] | Research Tax Credit Carryforward [Member]

Credit carryforwards

25,200,000

Credit carryforwards

24,800,000

Foreign Country [Member]

102,400,000

26,500,000

Credit carryforwards

$ 7,500,000

Korea

Income Tax Examination, Description

Windfall Tax Benefit [Member]

Increase (decrease) in income taxes payable

$ 100,000

$ 0

10,400,000

Windfall tax deductions not yet recognized

33,400,000

2014 Acquisitions [Member]

Deferred tax assets, change in valuation allowance

(18,100,000)

Deferred Tax Liabilities, Net

$ 21,600,000

All Acquisitions [Member] | Domestic Country [Member]

$ 82,200,000

[1]	(1) See Note B. Recent Accounting Pronouncements-Deferred Taxes regarding a change in the balance sheet classification of our deferred taxes.

XML 83 R59.htm IDEA: XBRL DOCUMENT

Income Taxes (Summary Of Income (Loss) Before Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Domestic	$ (156,166)	$ (110,867)	$ 17,038
Foreign	88,974	137,392	169,074
Income before income taxes	$ (67,192)	$ 26,525	$ 186,112

XML 84 R60.htm IDEA: XBRL DOCUMENT

Income Taxes (Schedule Of Provision For (Benefit From) Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Federal	$ 2,417	$ 3,907	$ 12,792
State	571	599	2,062
Foreign	28,467	23,823	31,010
Current provision for income taxes	31,455	28,329	45,864
Federal	965	(20,809)	(13,200)
State	515	(566)	(2,085)
Foreign	(45,662)	(27,986)	(4,661)
Deferred provision for (benefit from) income taxes	(44,182)	(49,361)	(19,946)
Total provision for income taxes	$ (12,727)	$ (21,032)	$ 25,918

XML 85 R61.htm IDEA: XBRL DOCUMENT

Income Taxes (Summary Of Federal Income Tax Rate And Effective Income Tax Rate) (Details)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	(35.00%)	35.00%	35.00%
Change in valuation allowance	57.00%	63.00%	(11.00%)
State income taxes, net of federal tax benefit	0.00%	7.00%	1.00%
Federal and state research and development credits	(9.00%)	(8.00%)	(0.00%)
Resolution of Uncertain Tax Position	0.00%	(11.00%)	0.00%
Foreign rate differences	(41.00%)	(213.00%)	(19.00%)
Foreign withholding tax	3.00%	14.00%	3.00%
U.S. permanent items	4.00%	34.00%	4.00%
Other, net	2.00%	0.00%	1.00%
Effective income tax rate	(19.00%)	(79.00%)	14.00%

XML 86 R62.htm IDEA: XBRL DOCUMENT

Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($)
$ in Thousands

Sep. 30, 2016

Sep. 30, 2015

Sep. 30, 2014

Sep. 30, 2013

Income Tax Disclosure [Abstract]

Capitalized research and development expense

^[1]

$ 100,033

$ 71,533

Foreign tax credits

^[1]

18,041

15,962

^[1]

22,504

31,690

Pension benefits

^[1]

14,348

11,009

Deferred revenue

^[1]

65,145

71,399

Stock-based compensation

^[1]

19,846

16,777

Other reserves not currently deductible

^[1]

25,993

21,940

Amortization of intangible assets

^[1]

54,069

62,227

Other tax credits

^[1]

41,381

37,270

Depreciation

^[1]

3,002

3,465

Capital loss carryforward

^[1]

8,019

8,040

Deferred Tax Asset, Deferred Interest

^[1]

7,622

3,557

Other

^[1]

14,778

6,559

Gross deferred tax assets

^[1]

394,781

361,428

Total deferred tax assets

(235,503)

^[1]

(198,168)

^[1]

$ (177,500)

$ (156,500)

^[1]

159,278

163,260

Acquired intangible assets not deductible

^[1]

(78,663)

(124,401)

Pension prepayments

^[1]

(542)

(395)

Deferred revenue

^[1]

(2,039)

(3,110)

Other

^[1]

(2,092)

(3,598)

Deferred Tax Liabilities, Gross

^[1]

83,336

131,504

Net deferred tax assets

^[1]

$ 75,942

$ 31,756

[1]	(1) See Note B. Recent Accounting Pronouncements-Deferred Taxes regarding a change in the balance sheet classification of our deferred taxes.

XML 87 R63.htm IDEA: XBRL DOCUMENT

Income Taxes (Summary Of Valuation Allowance) (Details) - USD ($)
$ in Thousands

12 Months Ended

Sep. 30, 2016

Sep. 30, 2015

Sep. 30, 2014

Movement in Valuation Allowances and Reserves [Roll Forward]

Valuation allowance beginning of year

$ 198,168

^[1]

$ 177,500

$ 156,500

Net release of valuation allowance

^[2]

(3,100)

(18,700)

(18,100)

Net increase in deferred tax assets for foreign jurisdictions with a full valuation allowance

39,800

39,400

14,100

Establish valuation allowance for acquired businesses

21,500

Establish valuation allowance in foreign jurisdictions

600

3,500

Valuation allowance end of year

$ 235,503

^[1]

$ 198,168

^[1]

$ 177,500

[1]	(1) See Note B. Recent Accounting Pronouncements-Deferred Taxes regarding a change in the balance sheet classification of our deferred taxes.
[2]	In 2016, this is attributable to the release in two foreign jurisdictions. In 2015, this is attributable to a reduction in deferred tax assets associated with our U.S. pension plan, both of which are described above and in 2014 the recognition of deferred tax liabilities recorded in connection with accounting for acquisitions.

XML 88 R64.htm IDEA: XBRL DOCUMENT

Income Taxes (Schedule Of Unrecognized Tax Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefit beginning of year	$ 14.1	$ 15.0	$ 13.7
Tax positions related to current year:
Additions	1.0	1.3	2.2
Tax positions related to prior years:
Additions	0.4	0.8	0.3
Reductions	0.0	(3.0)	(0.1)
Settlements	0.0	0.0	(0.6)
Statute expirations	0.0	0.0	(0.5)
Unrecognized tax benefit end of year	$ 15.5	$ 14.1	$ 15.0

XML 89 R65.htm IDEA: XBRL DOCUMENT

Debt (Details)		12 Months Ended
Debt (Details)	May 15, 2019	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($) bank	Sep. 30, 2014 USD ($)	Jul. 02, 2016 USD ($)	May 31, 2016 USD ($)	Apr. 02, 2016 USD ($)
Debt Instrument [Line Items]
Senior Notes		$ 500,000,000	$ 0			$ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage						6.00%
Debt Instrument, Fair Value Disclosure		$ 536,300,000
Additional borrowing capacity on credit facility if agreed to by lenders					$ 500,000,000
Voting interest in domestic subsidiaries pledged against credit facility		100.00%
Credit facility, borrowings outstanding		$ 758,125,000	618,125,000
Voting interest in foreign subsidiaries pledged against credit facility		65.00%
Investment limit in foreign subsidiaries		$ 75,000,000
Cash investment limit for acquisition of business		$ 200,000,000
Maximum leverage ratio allowed under debt covenant		4.00
Minimum fixed charge coverage ratio allowed under debt covenant		3.50
Leverage ratio, actual		3.55
Debt Instrument, Covenant Compliance, Senior Debt Leverage Ratio, actual		1.18
Fixed charge coverage ratio, actual		7.14
Credit facility, origination costs		$ 6,900,000		$ 7,900,000
Credit facility, periodic interest payment		$ 13,300,000	$ 10,100,000	$ 5,700,000
Credit facility, average interest rate during period		3.00%	1.70%	1.60%
Long-term Debt, Gross		$ 758,125,000	$ 668,125,000
Unamortized Debt Issuance Expense		(10,709,000)	(7,587,000)
debt net of unamortized debt issuance cost		747,416,000	660,538,000
Current portion of long term debt		$ 0	$ 50,000,000
Maximum [Member]
Debt Instrument [Line Items]
Credit facility, variable interest rate, length of time between updates		180 days
Minimum [Member]
Debt Instrument [Line Items]
Credit facility, variable interest rate, length of time between updates		30 days
Term Loan [Member]
Debt Instrument [Line Items]
Number of banks in credit agreement \| bank			16
Credit facility, borrowings outstanding		$ 0	$ 475,000,000
Line of Credit [Member]
Debt Instrument [Line Items]
Credit facility, current maximum amount							$ 1,000,000,000
Credit facility, borrowings outstanding		$ 258,125,000	$ 193,125,000
Credit facility, revolving loan, basis spread on federal funds effective rate		0.50%
Credit facility, revolving loan, basis spread on adjusted LIBOR		1.00%
Debt Instrument, Covenant Compliance, Senior Debt Leverage Ratio		3.0
Line of Credit [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Credit facility, revolving loan, commitment fees percentage		0.30%
Line of Credit [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Credit facility, revolving loan, commitment fees percentage		0.175%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, current maximum amount					$ 900,000,000
LIBOR for Eurodollar-Based Borrowings [Member] \| Line of Credit [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.75%
LIBOR for Eurodollar-Based Borrowings [Member] \| Line of Credit [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.25%
Base Rate [Member] \| Line of Credit [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.75%
Base Rate [Member] \| Line of Credit [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.25%
Revolving Loan, Reset December 17, 2015 \| Term Loan [Member]
Debt Instrument [Line Items]
Credit facility, term loan, interest rate at period end		2.56%
Scenario, Forecast [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage	101.00%

XML 90 R66.htm IDEA: XBRL DOCUMENT

Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended			60 Months Ended
	Jan. 01, 2011	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015
Commitments And Contingencies [Line Items]
Lease expense, net of sublease income		$ 37.2	$ 36.9	$ 38.6
Lease renewal term	10 years
Annual base rent plus operating expenses		$ 7.4
Additional term of lease renewal		10 years
Landlord reimbursements				$ 12.8
Letters of credit and bank guarantees outstanding		$ 4.2	4.0		$ 4.0
Bank guarantees outstanding collateralized		1.2	1.1		1.1
Pending or Threatened Litigation [Member]
Commitments And Contingencies [Line Items]
Loss contingency accrual		$ 3.6	30.5		$ 30.5
Korea
Commitments And Contingencies [Line Items]
Income Tax Examination, Description		12			12
China Matter [Member]
Commitments And Contingencies [Line Items]
Loss contingency accrual			$ 28.2		$ 28.2

XML 91 R67.htm IDEA: XBRL DOCUMENT

Commitments And Contingencies (Future Minimum Lease Payments) (Details) $ in Thousands	Sep. 30, 2016 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2017	$ 39,994
2018	34,347
2019	27,150
2020	22,804
2021	14,943
Thereafter	16,776
Total minimum lease payments	$ 156,014

XML 92 R68.htm IDEA: XBRL DOCUMENT

Stockholders' Equity (Details) - USD ($)	3 Months Ended		12 Months Ended
Stockholders' Equity (Details) - USD ($)	Jan. 03, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2016	Aug. 14, 2014	Aug. 04, 2014
Class of Stock [Line Items]
Preferred stock, shares authorized			5,000,000		5,000,000.0
Common stock, shares authorized			500,000,000		500,000,000
Stock authorized to repurchase		$ 100,000,000		$ 100,000,000			$ 600,000,000
Repurchases of common stock, shares			2,700,000	5,100,000
Repurchases of common stock, value			$ (64,940,000)	$ (187,415,000)
Stock repurchased in the period , including holdback				224,900,000
Common stock repurchase holdback				37,500,000
Series A Junior Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized					500,000
Accelerated Share Repurchase Agreement [Member]
Class of Stock [Line Items]
Accelerated Share Repurchases, Settlement (Payment) or Receipt						$ 125,000,000
Repurchases of common stock, shares	1,100,000	2,300,000
Common stock repurchase holdback				$ 37,500,000

XML 93 R69.htm IDEA: XBRL DOCUMENT

Equity Incentive Plan (Narrative) (Details) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	12 Months Ended
	Jul. 31, 2005	Sep. 30, 2016 USD ($) shares / unit $ / shares shares	Sep. 30, 2015 USD ($) $ / shares shares	Sep. 30, 2014 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation \| $		$ 65,996	$ 50,182	$ 50,889
Common stock issuable per restricted stock unit \| shares / unit		1
Total unrecognized compensation cost \| $		$ 81,900
Weighted average remaining recognition period, in months		17 months
Common stock were available for grant under the 2000 plan \| shares		5,100
Common stock were reserved for issuance \| shares		3,800
vesting period	4 years
Option expiration period	10 years
Options outstanding and exercisable (in shares) \| shares		0
Shares retained by company to cover tax withholdings \| shares		600	800	800
Employee tax withholdings \| $		$ 20,900	$ 29,200	$ 26,900
Directors And Executive Officers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-vesting forfeiture rate		0.00%	0.00%	0.00%
Other Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-vesting forfeiture rate		11.00%	7.00%	7.00%
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value per share \| $ / shares		$ 37.25
Restricted Shares and Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value per share \| $ / shares		$ 37.25	$ 38.19	$ 33.88
Minimum [Member] \| Vice President [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-vesting forfeiture rate		6.00%	2.00%	2.00%
Maximum [Member] \| Vice President [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-vesting forfeiture rate		8.00%	4.00%	4.00%
Performance-based Award [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value per share \| $ / shares		$ 46.96
stock modification [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation \| $		$ 10,000

XML 94 R70.htm IDEA: XBRL DOCUMENT

Equity Incentive Plan (Total Stock Based Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	$ 65,996	$ 50,182	$ 50,889
Cost of Software Revenue [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	5,398	4,296	4,059
Cost Of Service Revenue [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	5,393	5,871	6,351
Sales And Marketing [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	14,659	14,189	13,441
Research And Development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	10,174	11,623	10,119
General And Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based Compensation	$ 30,372	$ 14,203	$ 16,919

XML 95 R71.htm IDEA: XBRL DOCUMENT

Equity Incentive Plan (Restricted Stock Activity) (Details) - Restricted Stock Units (RSUs) [Member] $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2016 USD ($) $ / shares shares
Shares
Balance of outstanding restricted stock units, beginning, Shares \| shares	3,654
Shares granted \| shares	2,484
Vested, Shares \| shares	(1,818)
Forfeited or not earned, Shares \| shares	(544)
Balance of outstanding restricted stock units, ending, Shares \| shares	3,776
Weighted Average Grant Date Fair Value (Per Share)
Balance of outstanding restricted stock units, beginning (in USD per share) \| $ / shares	$ 33.64
Weighted average fair value per share \| $ / shares	37.25
Vested (in USD per share) \| $ / shares	30.10
Forfeited or not earned (in USD per share) \| $ / shares	36.49
Balance of outstanding restricted stock units, ending (in USD per share) \| $ / shares	$ 37.30
Intrinsic value [Abstract]
Aggregate Intrinsic Value, Ending Balance of outstanding restricted stock \| $	$ 167,314

XML 96 R72.htm IDEA: XBRL DOCUMENT

Equity Incentive Plan (Restricted Stock And Restricted Stock Unit Grants) (Details) - Restricted Stock Units (RSUs) [Member]

12 Months Ended

Sep. 30, 2016

installment

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

2,484,000

TSR Units [Member]

326,000

^[1]

Performance-based Award [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Time-based Award [Member]

343,000

^[2]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Executive Officer [Member]

1,815,000

^[2]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Chief Executive Officer [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Maximum [Member] | TSR Units [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Maximum [Member] | Performance-based Award [Member]

652,000

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share-based Compensation Award, Tranche One [Member] | Time-based Award [Member]

343,000

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share-based Compensation Award, Tranche Two [Member] | Time-based Award [Member]

64,000

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

121,000

Share-based Compensation Award, Tranche Three [Member] | Performance-based Award [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share-based Compensation Award, Tranche Three [Member] | Time-based Award [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

[1]

The TSR units were granted to our executive officers pursuant to the terms described below.

[2]

The service-based RSUs were issued to employees, our executive officers, our directors and a consultant. Executive officers may earn up to one or, for our CEO, two times the number of time-based RSUs (up to a maximum of 343 thousand shares) if certain performance conditions are met. Of the service-based RSUs, approximately 64 thousand shares will vest in one installment on or about the anniversary of the date of grant. Approximately 121 thousand shares will vest in two substantially equal annual installments on or about the anniversary of the date of grant. All other service-based RSUs will vest in three substantially equal annual installments on or about the anniversary of the date of grant. The performance-based RSUs will vest in three substantially equal installments on the later of November 15, 2016, November 15, 2017 and November 15, 2018, or the date the Compensation Committee determines the extent to which the applicable performance criteria have been achieved.

XML 97 R73.htm IDEA: XBRL DOCUMENT

Equity Incentive Plan (Schedule of Restricted Stock Unit Activity) (Details)	12 Months Ended
	Sep. 30, 2016
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate	28.10%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	1.05%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%

XML 98 R74.htm IDEA: XBRL DOCUMENT

Equity Incentive Plan (Value Of Stock Option And Stock-Based Award Activity) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Total intrinsic value of stock options exercised	$ 88	$ 182	$ 2,040
Total fair value of restricted stock and restricted stock unit awards vested	$ 63,655	$ 84,189	$ 79,660

XML 99 R75.htm IDEA: XBRL DOCUMENT

Employee Benefit Plan (Details) - Savings Plan [Member] - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Defined contribution plan, percentage of employee's contributions matched by employer	50.00%
Defined contribution plan, percentage of employer contribution on employee's earnings	3.00%
Defined contribution plan, employers contribution, rate of vesting, percentage	25.00%
Defined contribution plan, vesting period	4 years
Matching contributions by employer	$ 5.4	$ 5.3	$ 5.1

XML 100 R76.htm IDEA: XBRL DOCUMENT

Pension Plans (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer		$ 1,978	$ 46,700	$ 12,900
Pension settlement loss		0	66,332	0
Actuarial loss expected to be recognized in the following year		3,400
Actual return on plan assets gain (loss)		1,700	1,900	15,900
U.S. Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer		0	25,475
Pension settlement loss		0	66,332	0
Net periodic pension cost		0	72,136	523
International Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer		1,978	21,225
Pension settlement loss		$ 0	0	0
Long-term rate of return		5.44%
Net periodic pension cost		$ 1,955	$ 1,741	$ 2,771
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plans, vesting period		1 year
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plans, vesting period		5 years
Scenario, Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic pension cost	$ 2,700
Germany [Member] \| International Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Current asset allocation target for equity securities		60.00%
Current asset allocation target for fixed income securities		40.00%
Other International [Member] \| International Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Current asset allocation target for fixed income securities		100.00%

XML 101 R77.htm IDEA: XBRL DOCUMENT

Pension Plans (Accounting For The Pension Plans) (Details)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
U.S. Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average assumptions used to determine benefit obligations at September 30 measurement date, Discount rate	0.00%	0.00%	3.80%
Weighted average assumptions used to determine benefit obligations at September 30 measurement date, Rate of increase in future compensation	0.00%	0.00%	0.00%
Weighted average assumptions used to determine net periodic pension cost for fiscal years ended September 30, Discount rate	0.00%	3.80%	4.90%
Weighted average assumptions used to determine net periodic pension costs for fiscals years ended September 30, Rate of increase of future compensation	0.00%	0.00%	0.00%
Weighted average assumptions used to determine net periodic pension cost for fiscal years ended September 30, Rate of return on plan assets	0.00%	1.35%	7.25%
International Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average assumptions used to determine benefit obligations at September 30 measurement date, Discount rate	1.30%	2.20%	2.40%
Weighted average assumptions used to determine benefit obligations at September 30 measurement date, Rate of increase in future compensation	2.80%	3.00%	3.00%
Weighted average assumptions used to determine net periodic pension cost for fiscal years ended September 30, Discount rate	2.20%	2.40%	3.30%
Weighted average assumptions used to determine net periodic pension costs for fiscals years ended September 30, Rate of increase of future compensation	3.00%	3.00%	3.00%
Weighted average assumptions used to determine net periodic pension cost for fiscal years ended September 30, Rate of return on plan assets	5.73%	5.80%	5.70%

XML 102 R78.htm IDEA: XBRL DOCUMENT

Pension Plans (Components Of Net Periodic Pension Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Interest cost of projected benefit obligation	$ 1,374	$ 6,419
Service cost	1,599	1,466
Settlement loss	0	66,332	$ 0
U.S. Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost of projected benefit obligation	0	4,591	5,461
Service cost	0	0	0
Expected return on plan assets	0	(1,364)	(7,151)
Amortization of prior service cost	0	0	0
Recognized actuarial loss (gain)	0	2,577	2,213
Settlement loss	0	66,332	0
Net periodic pension cost	0	72,136	523
International Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost of projected benefit obligation	1,374	1,828	2,442
Service cost	1,599	1,466	1,659
Expected return on plan assets	(3,305)	(3,364)	(2,506)
Amortization of prior service cost	(5)	(4)	(5)
Recognized actuarial loss (gain)	2,292	1,815	1,181
Settlement loss	0	0	0
Net periodic pension cost	$ 1,955	$ 1,741	$ 2,771

XML 103 R79.htm IDEA: XBRL DOCUMENT

Pension Plans (Change In Benefit Obligation And Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation—beginning of year	$ 78,188	$ 218,559
Service cost	1,599	1,466
Interest cost	1,374	6,419
Actuarial loss	10,556	3,594
Foreign exchange impact	2,431	(9,515)
Participant contributions	147	198
Benefits paid	(1,600)	(7,183)
Settlements	0	(135,350)
Projected benefit obligation—end of year	92,695	78,188	$ 218,559
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets at fair value-beginning of year	57,961	157,350
Actual return on plan assets	1,742	1,878
Employer contributions	1,978	46,700	12,900
Participant contributions	147	198
Foreign exchange impact	1,707	(5,632)
Settlements	0	(135,350)
Benefits paid	(1,600)	(7,183)
Plan assets at fair value-end of year	61,935	57,961	157,350
Underfunded status	(30,760)	(20,227)
Accumulated benefit obligation-end of year	88,768	74,928
Non-current liability	(30,760)	(20,227)
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	0	0
Unrecognized actuarial loss	(38,667)	(28,339)
U.S. Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation—beginning of year	0	134,453
Service cost	0	0	0
Interest cost	0	4,591	5,461
Actuarial loss	0	1,606
Foreign exchange impact	0	0
Participant contributions	0	0
Benefits paid	0	(5,300)
Settlements	0	(135,350)
Projected benefit obligation—end of year	0	0	134,453
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets at fair value-beginning of year	0	112,859
Actual return on plan assets	0	2,316
Employer contributions	0	25,475
Participant contributions	0	0
Foreign exchange impact	0	0
Settlements	0	(135,350)
Benefits paid	0	(5,300)
Plan assets at fair value-end of year	0	0	112,859
Underfunded status	0	0
Accumulated benefit obligation-end of year	0	0
Non-current liability	0	0
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	0	0
Unrecognized actuarial loss	0	0
International Plans [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation—beginning of year	78,188	84,106
Service cost	1,599	1,466	1,659
Interest cost	1,374	1,828	2,442
Actuarial loss	10,556	1,988
Foreign exchange impact	2,431	(9,515)
Participant contributions	147	198
Benefits paid	(1,600)	(1,883)
Settlements	0	0
Projected benefit obligation—end of year	92,695	78,188	84,106
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets at fair value-beginning of year	57,961	44,491
Actual return on plan assets	1,742	(438)
Employer contributions	1,978	21,225
Participant contributions	147	198
Foreign exchange impact	1,707	(5,632)
Settlements	0	0
Benefits paid	(1,600)	(1,883)
Plan assets at fair value-end of year	61,935	57,961	$ 44,491
Underfunded status	(30,760)	(20,227)
Accumulated benefit obligation-end of year	88,768	74,928
Non-current liability	(30,760)	(20,227)
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	0	0
Unrecognized actuarial loss	$ (38,667)	$ (28,339)

XML 104 R80.htm IDEA: XBRL DOCUMENT

Pension Plans (Change in Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
AOCI Attributable to Parent, Before Tax [Roll Forward]
Beginning Balance, value	$ 860,171	$ 853,889
Ending Balance, value	842,666	860,171
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
AOCI Attributable to Parent, Before Tax [Roll Forward]
Beginning Balance, value	28,339	95,925
Recognized during year - net actuarial (losses)	(2,288)	(4,388)
Occurring during year - settlement loss	0	(66,332)
Occurring during year - net actuarial losses	12,119	6,445
Foreign exchange impact	497	(3,311)
Ending Balance, value	38,667	28,339
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] \| U.S. Plan [Member]
AOCI Attributable to Parent, Before Tax [Roll Forward]
Beginning Balance, value	0	68,256
Recognized during year - net actuarial (losses)	0	(2,577)
Occurring during year - settlement loss	0	(66,332)
Occurring during year - net actuarial losses	0	653
Foreign exchange impact	0	0
Ending Balance, value	0	0
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] \| International Plans [Member]
AOCI Attributable to Parent, Before Tax [Roll Forward]
Beginning Balance, value	28,339	27,669
Recognized during year - net actuarial (losses)	(2,288)	(1,811)
Occurring during year - settlement loss	0	0
Occurring during year - net actuarial losses	12,119	5,792
Foreign exchange impact	497	(3,311)
Ending Balance, value	$ 38,667	$ 28,339

XML 105 R81.htm IDEA: XBRL DOCUMENT

Pension Plans (Percentage Of Total Plan Assets) (Details) - International Plans [Member]	Sep. 30, 2016	Sep. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Asset Category	100.00%	100.00%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset Category	49.00%	53.00%
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset Category	30.00%	32.00%
Commodity Option [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset Category	4.00%	0.00%
Insurance Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset Category	16.00%	13.00%
Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset Category	1.00%	2.00%

XML 106 R82.htm IDEA: XBRL DOCUMENT

Pension Plans (Expected Future Benefit Payments) (Details) - International Plans [Member] $ in Thousands	Sep. 30, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
2017	$ 1,899
2018	2,314
2019	2,566
2020	2,861
2021	3,175
2022 to 2026	$ 22,034

XML 107 R83.htm IDEA: XBRL DOCUMENT

Pension Plans (Fair Value Of Plan Assets) (Details) - USD ($)
$ in Thousands

Sep. 30, 2016

Sep. 30, 2015

Sep. 30, 2014

International Plan Assets [Member]

$ 61,935

$ 57,961

$ 157,350

Government [Member] | International Plan Assets [Member]

61,935

57,961

Europe Corporate Investment Grade [Member] | International Plan Assets [Member]

8,518

11,086

Europe Large Capitalization Stocks [Member] | International Plan Assets [Member]

10,218

7,487

Commodity Option [Member] | International Plan Assets [Member]

30,615

30,887

Insurance Company Funds [Member] | International Plan Assets [Member]

2,709

Cash [Member] | International Plan Assets [Member]

^[1]

9,578

7,668

Level 1 [Member] | International Plan Assets [Member]

297

833

Level 1 [Member] | Government [Member] | International Plan Assets [Member]

52,357

50,293

Level 1 [Member] | Europe Corporate Investment Grade [Member] | International Plan Assets [Member]

8,518

11,086

Level 1 [Member] | Europe Large Capitalization Stocks [Member] | International Plan Assets [Member]

10,218

7,487

Level 1 [Member] | Commodity Option [Member] | International Plan Assets [Member]

30,615

30,887

Level 1 [Member] | Insurance Company Funds [Member] | International Plan Assets [Member]

2,709

Level 1 [Member] | Cash [Member] | International Plan Assets [Member]

^[1]

Level 2 [Member] | International Plan Assets [Member]

297

833

Level 2 [Member] | Government [Member] | International Plan Assets [Member]

9,578

7,668

Level 2 [Member] | Europe Corporate Investment Grade [Member] | International Plan Assets [Member]

Level 2 [Member] | Europe Large Capitalization Stocks [Member] | International Plan Assets [Member]

Level 2 [Member] | Commodity Option [Member] | International Plan Assets [Member]

Level 2 [Member] | Insurance Company Funds [Member] | International Plan Assets [Member]

Level 2 [Member] | Cash [Member] | International Plan Assets [Member]

^[1]

9,578

7,668

Level 3 [Member] | International Plan Assets [Member]

Level 3 [Member] | Government [Member] | International Plan Assets [Member]

Level 3 [Member] | Europe Corporate Investment Grade [Member] | International Plan Assets [Member]

Level 3 [Member] | Europe Large Capitalization Stocks [Member] | International Plan Assets [Member]

Level 3 [Member] | Commodity Option [Member] | International Plan Assets [Member]

Level 3 [Member] | Insurance Company Funds [Member] | International Plan Assets [Member]

Level 3 [Member] | Cash [Member] | International Plan Assets [Member]

^[1]

$ 0

[1]	These investments are comprised primarily of funds invested with an insurance company in Japan with a guaranteed rate of return. The insurance company invests these assets primarily in government and corporate bonds.

XML 108 R84.htm IDEA: XBRL DOCUMENT

Derivative Financial Instruments Derivative Financial Instruments (Notional Amounts of Outstanding Forward Contracts (Details) - Foreign Exchange Forward [Member] - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Derivative [Line Items]
Derivative, Notional Amount	$ 249,534	$ 157,255
Canadian/U.S. Dollar
Derivative [Line Items]
Derivative, Notional Amount	14,685	17,448
Euro/U.S. Dollar
Derivative [Line Items]
Derivative, Notional Amount	174,120	82,917
British Pound/Euro
Derivative [Line Items]
Derivative, Notional Amount	1,382	9,409
Israeli Sheqel/U.S. Dollar
Derivative [Line Items]
Derivative, Notional Amount	7,271	4,607
Japanese Yen to Euro [Domain]
Derivative [Line Items]
Derivative, Notional Amount	32,782	25,133
Japanese Yen to USD [Domain]
Derivative [Line Items]
Derivative, Notional Amount	6,716	0
Swiss Franc/U.S. Dollar
Derivative [Line Items]
Derivative, Notional Amount	730	5,149
All other
Derivative [Line Items]
Derivative, Notional Amount	11,848	12,592
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount	39,059	0
Designated as Hedging Instrument [Member] \| Euro/U.S. Dollar
Derivative [Line Items]
Derivative, Notional Amount	26,181	0
Designated as Hedging Instrument [Member] \| Japanese Yen/Euro
Derivative [Line Items]
Derivative, Notional Amount	8,800	0
Designated as Hedging Instrument [Member] \| SEK / U.S. Dollar
Derivative [Line Items]
Derivative, Notional Amount	$ 4,078	$ 0

XML 109 R85.htm IDEA: XBRL DOCUMENT

Derivative Financial Instruments Derivative Financial Instruments (Derivative Instruments and Hedging Activities Disclosure) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Derivative [Line Items]
Net realized and unrealized gain or (loss) (excluding the underlying foreign currency exposure being hedged)	$ (500)	$ 600	$ (3,800)
Gain or (Loss)Recognized in OCI-Effective Portion	(3,375)	0	0
Foreign Exchange Forward [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Gain or (Loss)Recognized in OCI-Effective Portion	(3,859)
Gain or (Loss) Reclassified from OCI into Income-Effective Portion	(2,436)
Gain or (Loss) Recognized-Ineffective Portion	(24)
Other Income (Expense) [Member] \| Foreign Exchange Forward [Member] \| Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net realized and unrealized gain or (loss) (excluding the underlying foreign currency exposure being hedged)	$ 883	$ (615)	$ 3,769

XML 110 R86.htm IDEA: XBRL DOCUMENT

Derivative Financial Instruments Derivative Financial Instruments (Derivative Instruments at Fair Value) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Asset at Fair Value	$ 44	$ 0
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	216	507
Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Liability at Fair Value	1,477	0
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value	$ 1,693	$ 46

XML 111 R87.htm IDEA: XBRL DOCUMENT

Derivative Financial Instruments Derivative Financial Instruments (Offsetting Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Asset, Fair Value, Gross Asset	$ 260
Derivative Asset, Fair Value, Gross Liability	0
Derivative Asset	260	$ 507
Derivative, Collateral, Obligation to Return Securities	(260)
Derivative, Collateral, Obligation to Return Cash	0
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	$ 0

XML 112 R88.htm IDEA: XBRL DOCUMENT

Derivative Financial Instruments Derivative Financial Instruments (Offsetting Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Liability, Fair Value, Gross Liability	$ 3,170
Derivative Liability, Fair Value, Gross Asset	0
Derivative Liability	3,170	$ 46
Derivative, Collateral, Right to Reclaim Securities	(260)
Derivative, Collateral, Right to Reclaim Cash	0
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	$ 2,910

XML 113 R89.htm IDEA: XBRL DOCUMENT

Derivative Financial Instruments Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net losses on foreign currency exposures	$ 1.9	$ 2.7	$ 4.5
Net realized and unrealized gain or (loss) (excluding the underlying foreign currency exposure being hedged)	$ (0.5)	$ 0.6	$ (3.8)

XML 114 R90.htm IDEA: XBRL DOCUMENT

Segment Information (Revenue And Operating Income) (Details) - USD ($)
$ in Thousands

12 Months Ended

Sep. 30, 2016

Sep. 30, 2015

Sep. 30, 2014

$ 1,140,533

$ 1,255,242

$ 1,356,967

325,665

334,734

373,683

Total Segment Cost of Revenue

814,868

920,508

983,284

435,246

446,437

490,243

Segment Gross Profit

705,287

808,805

866,724

Unallocated Operating Expennses

^[1]

666,028

723,780

641,742

Operating income

(37,014)

41,616

196,576

Other income (expense), net

30,178

15,091

10,464

Restructuring charges

76,273

43,409

28,406

Income before income taxes

(67,192)

26,525

186,112

86,554

84,433

77,307

Solutions Group [Member]

871,225

980,274

1,073,426

186,174

224,042

244,020

685,051

756,232

829,406

Technology Platform Group [Member]

5,400

5,600

5,700

72,371

49,249

4,815

83,747

28,998

8,534

(11,376)

20,251

(3,719)

Professional Services [Member]

1,600

1,000

100

196,937

225,719

278,726

165,325

193,397

237,689

31,612

32,322

41,037

2,000

2,200

2,300

Unallocated [Member]

$ 19,700

$ 20,100

$ 19,000

[1]

XML 115 R91.htm IDEA: XBRL DOCUMENT

Segment Information (Revenue By Product Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Revenue	$ 1,140,533	$ 1,255,242	$ 1,356,967
CAD [Member]
Revenue	462,307	511,582	581,508
Extended PLM [Member]
Revenue	456,285	524,741	599,312
SLM [Member]
Revenue	141,644	166,060	170,980
IoT Segment [Member]
Revenue	$ 80,297	$ 52,859	$ 5,167

XML 116 R92.htm IDEA: XBRL DOCUMENT

Segment Information (Revenue By Geographic Segment) (Details) - USD ($)
$ in Thousands

12 Months Ended

Sep. 30, 2016

Sep. 30, 2015

Sep. 30, 2014

$ 1,140,533

$ 1,255,242

$ 1,356,967

67,113

65,162

67,783

Americas [Member]

^[1]

487,594

530,311

558,671

^[2]

48,281

47,509

51,027

Europe [Member]

^[3]

424,268

467,805

528,090

6,915

7,424

7,020

Pacific Rim [Member]

123,766

139,165

148,151

Japan [Member]

104,905

117,961

122,055

Asia Pacific [Member]

11,917

10,229

9,736

United States [Member]

463,100

500,600

518,700

Germany [Member]

$ 167,200

$ 177,100

$ 200,300

[1]	Includes revenue in the United States totaling $463.1 million, $500.6 million and $518.7 million for 2016, 2015 and 2014, respectively.
[2]	Substantially all of the Americas long-lived tangible assets are located in the United States.
[3]	Includes revenue in Germany totaling $167.2 million, $177.1 million and $200.3 million for 2016, 2015 and 2014, respectively.

XML 117 R93.htm IDEA: XBRL DOCUMENT

Segment Information (Narrative) (Details)	3 Months Ended	6 Months Ended	12 Months Ended
Segment Information (Narrative) (Details)	Sep. 30, 2016 segments	Apr. 02, 2016 segments	Sep. 30, 2016 segments product_area
Segment Reporting [Abstract]
Number of operating Segments			3
Number of reportable segments	3	2	3
Number of product areas \| product_area			4

XML 118 R94.htm IDEA: XBRL DOCUMENT

Subsequent Events (Narrative) (Details)
$ in Millions

1 Months Ended

12 Months Ended

Nov. 30, 2016

USD ($)

installment

Oct. 31, 2016

USD ($)

Jul. 31, 2005

Sep. 30, 2016

installment

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

4 years

Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

2,484,000

Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period

3 years

TSR Units [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

^[1]

326,000

TSR Units [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member]

Performance-based Award [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

^[2]

343,000

Performance-based Award [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member]

Time-based Award [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

^[2]

1,815,000

Maximum [Member] | TSR Units [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

652,000

Maximum [Member] | Performance-based Award [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

343,000

Maximum [Member] | Performance-based Award [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

495,000

Executive Officer [Member] | Restricted Stock Units (RSUs) [Member]

Executive Officer [Member] | Maximum [Member] | Performance-based Award [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

305,000

Korea | Subsequent Event [Member]

Income Tax Assessment Paid | $

$ 12.0

Share-based Compensation Award, Tranche One [Member] | Time-based Award [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

64,000

Share-based Compensation Award, Tranche One [Member] | Executive Officer [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Award, Tranche Two [Member] | Time-based Award [Member] | Restricted Stock Units (RSUs) [Member]

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

121,000

Share-based Compensation Award, Tranche Two [Member] | Executive Officer [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member]

Line of Credit [Member] | Subsequent Event [Member]