Nuance Communications (NUAN) 10-Q 9 Aug 19 2019 Q3 Quarterly report Financial data

Cover Page

Cover Page	9 Months Ended
	Jun. 30, 2019shares
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2019
Document Transition Report	false
Entity File Number	000-27038
Entity Registrant Name	NUANCE COMMUNICATIONS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	94-3156479
Entity Address, Address Line One	1 Wayside Road
Entity Address, City or Town	Burlington,
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01803
City Area Code	781
Local Phone Number	565-5000
Title of 12(b) Security	Common stock, par value $0.001
Trading Symbol	NUAN
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	285,642,813
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001002517
Current Fiscal Year End Date	--09-30

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Hosting and professional services	$ 260,902	$ 253,610	$ 771,601	$ 785,038
Product and licensing	121,809	132,762	377,349	387,956
Maintenance and support	66,486	63,077	203,484	189,872
Total revenues	449,197	449,449	1,352,434	1,362,866
Cost of revenues:
Hosting and professional services	154,397	165,578	471,204	517,362
Product and licensing	19,207	13,969	61,897	41,867
Maintenance and support	8,192	9,612	24,919	28,616
Amortization of intangible assets	8,895	12,172	27,700	38,744
Total cost of revenues	190,691	201,331	585,720	626,589
Gross profit	258,506	248,118	766,714	736,277
Operating expenses:
Research and development	67,598	69,427	201,774	202,211
Sales and marketing	72,229	77,820	223,343	233,237
General and administrative	46,421	49,666	130,892	174,622
Amortization of intangible assets	16,496	19,856	50,426	57,094
Acquisition-related costs, net	1,154	4,916	6,223	12,837
Restructuring and other charges, net	16,118	5,342	60,668	27,792
Goodwill and Intangible Asset Impairment	0	0	0	137,907
Total operating expenses	220,016	227,027	673,326	845,700
Income (loss) from operations	38,490	21,091	93,388	(109,423)
Other (expense) income:
Interest income	3,762	2,482	9,987	6,910
Interest expense	(28,359)	(33,849)	(91,777)	(103,785)
Other income (expense), net	3,152	(885)	2,425	(1,515)
Income (loss) before income taxes	17,045	(11,161)	14,023	(207,813)
Provision (benefit) for income taxes	7,786	9,559	7,814	(67,417)
Net income (loss) from continuing operations	9,259	(14,037)	105,681	(124,862)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0	6,683	99,472	15,534
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	$ 9,259	$ (20,720)	$ 6,209	$ (140,396)
Net income (loss) per common share - basic:
Continuing operations	$ 0.03	$ (0.05)	$ 0.37	$ (0.43)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0	0.02	0.35	0.05
Income (Loss) from Continuing Operations, Per Basic Share	0.03	(0.07)	0.02	(0.48)
Continuing operations	0.03	(0.05)	0.37	(0.43)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	0	0.02	0.35	0.05
Income (Loss) from Continuing Operations, Per Diluted Share	$ 0.03	$ (0.07)	$ 0.02	$ (0.48)
Weighted average common shares outstanding:
Basic	285,942	292,663	285,064	292,703
Diluted	288,648	292,663	288,153	292,703

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net income (loss)	$ 9,259	$ (14,037)	$ 105,681	$ (124,862)
Other comprehensive income (loss):
Foreign currency translation adjustment	3,541	(25,985)	494	(20,374)
Pension Adjustments	32	432	(282)	548
Unrealized (loss) gain on marketable securities	78	126	234	(222)
Total other comprehensive income (loss), net	3,651	(25,427)	446	(20,048)
Comprehensive income (loss)	$ 12,910	$ (39,464)	$ 106,127	$ (144,910)

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Current assets:
Cash and cash equivalents	$ 536,377	$ 315,963
Marketable securities	136,986	135,579
Accounts receivable, less allowances for doubtful accounts of $10,538 and $9,823	313,599	347,873
Prepaid expenses and other current assets	193,795	94,814
Disposal Group, Including Discontinued Operation, Assets, Current	0	34,402
Total current assets	1,180,757	928,631
Marketable Securities, Noncurrent	12,796	21,932
Land, building and equipment, net	138,466	153,452
Goodwill	3,242,693	3,247,105
Intangible assets, net	372,934	450,001
Other assets	241,271	141,761
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	0	359,497
Total assets	5,188,917	5,302,379
Current liabilities:
Contingent And Deferred Acquisition Payments	17,122	14,211
Accounts payable	95,272	80,912
Accrued expenses and other current liabilities	245,012	269,339
Deferred revenue	310,586	330,689
Disposal Group, Including Discontinued Operation, Liabilities, Current	0	69,013
Total current liabilities	667,992	764,164
Long-term debt	1,923,716	2,185,361
Deferred revenue, net of current portion	410,897	434,316
Deferred tax liabilities	45,456	49,931
Other liabilities	97,858	93,593
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	0	57,518
Total liabilities	3,145,919	3,584,883
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.001 par value per share; 560,000 shares authorized; 288,730 and 291,504 shares issued and 284,979 and 287,753 shares outstanding, respectively	289	291
Additional paid-in capital	2,578,050	2,597,693
Treasury stock, at cost (3,751 shares)	(16,788)	(16,788)
Accumulated other comprehensive loss	(116,812)	(122,863)
Accumulated deficit	(401,741)	(740,837)
Total stockholders’ equity	2,042,998	1,717,496
Total liabilities and stockholders’ equity	$ 5,188,917	$ 5,302,379

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Accounts receivable, allowances for doubtful accounts	$ 10,528	$ 9,823
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	560,000	560,000
Common stock, shares issued	288,730	291,504
Common stock, shares outstanding	284,979	287,753
Treasury stock, shares	3,751	3,751

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	$ 6,209	$ (140,396)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	121,438	142,341
Stock-based compensation	100,143	101,466
Non-cash interest expense	37,011	37,091
Deferred tax benefit	(18,975)	(90,836)
Loss on extinguishment of debt	910	0
Goodwill and Intangible Asset Impairment	0	137,907
Impairment of fixed asset	0	1,780
Other	(651)	894
Changes in operating assets and liabilities, excluding effects of acquisitions:
Accounts receivable	5,011	(1,426)
Prepaid expenses and other assets	(20,116)	(18,933)
Accounts payable	15,260	(3,646)
Accrued expenses and other liabilities	8,329	(889)
Deferred revenue	38,270	92,075
Net Cash Provided by (Used in) Continuing Operations	292,839	257,428
Cash Provided by (Used in) Operating Activities, Discontinued Operations	4,355	37,595
Net cash provided by operating activities	297,194	295,023
Proceeds from Divestiture of Businesses	407,043	0
Cash flows from investing activities:
Capital expenditures	(32,243)	(38,965)
Payments for business and asset acquisitions, net of cash acquired	(3,102)	(109,225)
Purchases of marketable securities and other investments	(256,332)	(158,645)
Proceeds from sales and maturities of marketable securities and other investments	262,914	259,677
Net cash provided by (used in) investing activities	378,280	(47,158)
Cash flows from financing activities:
Repayment and redemption of debt	(300,000)	(331,172)
Payments for repurchase of common stock	(120,935)	(111,979)
Acquisition payments with extended payment terms	0	(20,769)
Proceeds from issuance of common stock from employee stock plans	8,643	9,359
Payments for taxes related to net share settlement of equity awards	(42,562)	(51,852)
Other financing activities	(1,442)	(1,073)
Net cash used in financing activities	(456,296)	(507,486)
Effects of exchange rate changes on cash and cash equivalents	1,236	(1,419)
Net increase (decrease) in cash and cash equivalents	220,414	(261,040)
Cash and cash equivalents at beginning of period	315,963	592,299
Cash and cash equivalents at end of period	$ 536,377	$ 331,259

Statement of Equity Statement

Statement of Equity Statement - USD ($) shares in Thousands, $ in Thousands	Total	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Additional Paid-in Capital [Member]	Common Stock [Member]
Shares, Issued			3,751			293,938
Stockholders' Equity Attributable to Parent	$ 1,931,382	$ (580,027)	$ (16,788)	$ (101,342)	$ 2,629,245	$ 294
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	(882)	(882)
Stock Issued During Period, Shares, Employee Stock Purchase Plans						7,995
Stock Issued During Period, Value, Employee Stock Purchase Plan	(9,359)				(9,351)	$ (8)
Cancellation of Restricted Stock and Repurchase of Common Stock at Cost for Employee Tax Withholding, Shares						2,684
Cancellation of Restricted Stock and Repurchase of Common Stock at Cost for Employee Tax Withholding, Value	42,349				42,346	$ 3
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	$ 117,294				117,294
Stock Repurchased and Retired During Period, Shares	8,100					8,107
Stock Repurchased and Retired During Period, Value	$ 111,979				111,971	$ 8
Net income (loss)	(124,862)	(124,862)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(20,048)			(20,048)
Shares, Issued			3,751			298,330
Stockholders' Equity Attributable to Parent	1,893,682	(691,734)	$ (16,788)	(95,963)	2,697,869	$ 298
Stock Issued During Period, Shares, Employee Stock Purchase Plans						1,452
Stock Issued During Period, Value, Employee Stock Purchase Plan	(1)				(3)	$ (2)
Cancellation of Restricted Stock and Repurchase of Common Stock at Cost for Employee Tax Withholding, Shares						533
Cancellation of Restricted Stock and Repurchase of Common Stock at Cost for Employee Tax Withholding, Value	7,842				7,841	$ 1
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	23,519				23,519
Stock Repurchased and Retired During Period, Shares						8,107
Stock Repurchased and Retired During Period, Value	111,979				111,971	$ 8
Net income (loss)	(14,037)	(14,037)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(25,427)			(25,427)
Shares, Issued			3,751			291,142
Stockholders' Equity Attributable to Parent	1,757,915	(705,771)	$ (16,788)	(121,390)	2,601,573	$ 291
Shares, Issued			3,751			291,504
Stockholders' Equity Attributable to Parent	1,717,496	(740,837)	$ (16,788)	(122,863)	2,597,693	$ 291
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	233,415	233,415
Stock Issued During Period, Shares, Employee Stock Purchase Plans						7,225
Stock Issued During Period, Value, Employee Stock Purchase Plan	(8,643)				(8,635)	$ (8)
Cancellation of Restricted Stock and Repurchase of Common Stock at Cost for Employee Tax Withholding, Shares						2,229
Cancellation of Restricted Stock and Repurchase of Common Stock at Cost for Employee Tax Withholding, Value	35,852				35,850	$ 2
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	$ 128,499				128,499
Stock Repurchased and Retired During Period, Shares	7,800					7,770
Stock Repurchased and Retired During Period, Value	$ 120,935				120,927	$ 8
Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses)	5,605			5,605
Net income (loss)	105,681
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	446			446
Shares, Issued			3,751			290,038
Stockholders' Equity Attributable to Parent	2,044,747	(411,000)	$ (16,788)	(120,463)	2,592,708	$ 290
Stock Issued During Period, Shares, Employee Stock Purchase Plans						646
Stock Issued During Period, Value, Employee Stock Purchase Plan	0				1	$ (1)
Cancellation of Restricted Stock and Repurchase of Common Stock at Cost for Employee Tax Withholding, Shares						247
Cancellation of Restricted Stock and Repurchase of Common Stock at Cost for Employee Tax Withholding, Value	4,292				4,292	$ 0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	$ 19,247				19,247
Stock Repurchased and Retired During Period, Shares	1,700					1,707
Stock Repurchased and Retired During Period, Value	$ 29,614				29,612	$ 2
Net income (loss)	9,259
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	3,651			3,651
Shares, Issued			3,751			288,730
Stockholders' Equity Attributable to Parent	$ 2,042,998	$ (401,741)	$ (16,788)	$ (116,812)	$ 2,578,050	$ 289

Organization and Presentation

Organization and Presentation	9 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Presentation	Organization and Presentation The condensed consolidated financial statements include the accounts of Nuance Communications, Inc. ("Nuance", "we", "our", or the "Company") and our wholly-owned subsidiaries. We prepared the unaudited interim condensed consolidated financial statements in accordance with accounting principles generally accepted in the United States of America (the "U.S." or the "United States") and pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC"). The condensed consolidated financial statements reflect all normal and recurring adjustments that, in our opinion, are necessary to present fairly our financial position, results of operations and cash flows for the periods presented. The preparation of financial statements in conformity with U.S. Generally Accepted Accounting Principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts and classifications of assets and liabilities, disclosure of contingent assets and liabilities, and the reported amounts of revenues and expenses during the reporting period. Although we believe the disclosures included herein are adequate to ensure that the condensed consolidated financial statements are fairly presented, certain information and footnote disclosures to the financial statements have been condensed or omitted in accordance with the rules and regulations of the SEC. Accordingly, the condensed consolidated financial statements and the footnotes included herein should be read in conjunction with the audited financial statements and the footnotes included in our Annual Report on Form 10-K for the fiscal year ended September 30, 2018 . The results of operations for the interim periods presented are not necessarily indicative of the results for the entire fiscal year or any future period.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Recently Adopted Accounting Standards Revenue Recognition In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU No. 2014-09, "Revenue from Contracts with Customers: Topic 606" ("ASC 606"), to supersede nearly all existing revenue recognition guidance under U.S. GAAP. We adopted ASC 606 on October 1, 2018 using the modified retrospective approach, with a cumulative adjustment to retained earnings as opposed to retrospectively adjusting prior periods. Results for reporting periods beginning after October 1, 2018 are presented under ASC 606, while prior period amounts are not adjusted and continue to be reported in accordance with our historic accounting policies under "Revenue Recognition: Topic 605" ("ASC 605"). For contracts that were modified before the effective date, the Company aggregated the effect of all contract modifications prior to identifying performance obligations and allocating transaction price in accordance with the practical expedient ASC 606-10-65-1-(f)-4. Upon adoption of ASC 606 on October 1, 2018, we recorded a decrease to Accumulated deficit of approximately $233 million as a result of the transition. The impact of the adoption primarily relates to the cumulative effect of (1) approximately $70 million decrease in Deferred revenue from the upfront recognition of term licenses and the general requirement to allocate the transaction price on a relative stand-alone selling price, (2) approximately $180 million increase in contract assets, (3) approximately $30 million decrease in Accounts receivable, (4) approximately $30 million increase in Deferred costs, and (5) approximately $20 million increase in Deferred tax liabilities related to the above items. The following tables summarize the impact of adopting ASC 606 on the Company’s condensed consolidated statement of operations for the three and nine months ended June 30, 2019 and the condensed consolidated balance sheet as of June 30, 2019 (dollars in thousands): For the Three Months Ended June 30, 2019 As reported, ASC 606 Effect of Implementation As adjusted, ASC 605 Revenues: Hosting and professional services $ 260,902 $ 7,943 $ 268,845 Product and licensing 121,809 5,579 127,388 Maintenance and support 66,486 (4,387 ) 62,099 Total revenues $ 449,197 $ 9,135 $ 458,332 Cost of revenues: Hosting and professional services $ 154,397 $ 6,555 $ 160,952 Product and licensing 19,207 (1,496 ) 17,711 Maintenance and support 8,192 215 8,407 Amortization of intangible assets 8,895 — 8,895 Total cost of revenues $ 190,691 $ 5,274 $ 195,965 Sales and marketing $ 72,229 $ 1,603 $ 73,832 Provision for income taxes $ 7,786 $ (650 ) $ 7,136 For the Nine Months Ended June 30, 2019 As reported, ASC 606 Effect of Implementation As adjusted, ASC 605 Revenues: Hosting and professional services $ 771,601 $ 29,179 $ 800,780 Product and licensing 377,349 9,502 386,851 Maintenance and support 203,484 (20,146 ) 183,338 Total revenues $ 1,352,434 $ 18,535 $ 1,370,969 Cost of revenues: Hosting and professional services $ 471,204 $ 3,302 $ 474,506 Product and licensing 61,897 (12,941 ) 48,956 Maintenance and support 24,919 262 25,181 Amortization of intangible assets 27,700 — 27,700 Total cost of revenues $ 585,720 $ (9,377 ) $ 576,343 Sales and marketing $ 223,343 $ 1,023 $ 224,366 Provision for income taxes $ 7,814 $ 10,029 $ 17,843 As of June 30, 2019 As reported, ASC 606 Effect of Implementation As adjusted, ASC 605 Assets: Accounts receivable $ 313,599 $ 26,611 $ 340,210 Prepaid expenses and other current assets $ 193,795 $ (65,621 ) $ 128,174 Other assets $ 241,271 $ (121,462 ) $ 119,809 Liabilities: Deferred revenue, current $ 310,586 $ 36,191 $ 346,777 Deferred revenue, noncurrent $ 410,897 $ 19,882 $ 430,779 Deferred tax liabilities $ 45,456 $ (10,026 ) $ 35,430 Other long-term liabilities $ 97,858 $ (11,252 ) $ 86,606 Stockholders' Equity: Accumulated deficit $ (401,741 ) $ (195,117 ) $ (596,858 ) Statements of Cash Flows In August 2016, the FASB issued ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" ("ASU 2016-15"), which is effective for fiscal years beginning after December 15, 2017 and the interim periods therein. We adopted this guidance on October 1, 2018 and applied it retrospectively. The adoption did not have a material impact on our condensed consolidated statements of cash flows. Financial Instruments In January 2016, the FASB issued ASU No. 2016-01, "Recognition and Measurement of Financial Assets and Financial Liabilities" ("ASU 2016-01"). ASU 2016-01 amends the guidance on the classification and measurement of financial instruments. We adopted ASU 2016-01 as of January 1, 2018 using the modified retrospective method. The adoption did not have a material impact on our condensed consolidated financial statements. Issued Accounting Standards Not Yet Adopted Leases In February 2016, the FASB issued ASU No. 2016-02, "Leases" ("ASC 842"). ASC 842 requires lessees to recognize on the balance sheet a right-of-use asset, representing its right to use the underlying asset for the lease term, and a lease liability for all leases with terms greater than 12 months. The guidance also requires qualitative and quantitative disclosures designed to assess the amount, timing, and uncertainty of cash flows arising from leases. The standard requires the use of a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply. ASC 842 is effective for us in the first quarter of fiscal year 2020, and early application is permitted. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases and ASU 2018-11, Leases Topic 842 Targeted Improvements, which provides an additional (and optional) transition method whereby the new lease standard is applied at the adoption date and recognized as an adjustment to retained earnings. We intend to adopt the guidance as of October 1, 2019 under the modified retrospective approach and elect the package of practical expedients under the transition guidance. We are currently evaluating the impact of ASC 842 and expect to recognize $110 million to $145 million of operating lease right-of-use assets and $130 million to $175 million operating lease obligations. We do not expect the adoption of the guidance to have a material impact on our consolidated statements of operations or consolidated statements of cash flows. Other Accounting Pronouncements In August 2018, the FASB issued ASU No. 2018-15, "Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract" ("ASU 2018-15"), which is effective for fiscal year beginning after December 15, 2019, and interim periods within those fiscal years, with early adoption permitted. The guidance requires that implementation costs related to a hosting arrangement that is a service contract be capitalized and amortized over the term of the hosting arrangement, starting when the module or component of the hosting arrangement is ready for its intended use. The guidance will be applied retrospectively to each period presented. We do not expect the implementation to have a material impact on our condensed consolidated financial statements. In January 2018, the FASB issued ASU No. 2018-02, "Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income ("AOCI"), which is effective for fiscal years beginning after December 15, 2018 and interim periods therein, with early adoption permitted. The guidance gives entities the option to reclassify to retained earnings the tax effects resulting from the Tax Cuts and Jobs Act ("TCJA") related to items in AOCI. The new guidance may be applied retrospectively to each period in which the effect of TCJA is recognized in the period of adoption. We do not expect the implementation to have a material impact on our condensed consolidated financial statements.

Revenue Recognition Revenue Re

Revenue Recognition Revenue Recognition (Notes)	9 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	Revenue Recognition We derive revenue from the following sources: (1) hosting services, (2) software licenses, including royalties, (3) maintenance and support ("M&S"), (4) professional services, and (5) sale of hardware. Revenue is reported net of applicable sales and use tax, value-added tax and other transaction taxes imposed on the related transaction including mandatory government charges that are passed through to our customers. We account for a contract when both parties have approved and committed to the contract, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable. The majority of our arrangements with customers typically contain multiple products and services. We account for individual products and services separately if they are distinct--that is, if a product or service is separately identifiable from other items in the contract and if a customer can benefit from it on its own or with other resources that are readily available to the customer. We recognize revenue after applying the following five steps: • identification of the contract, or contracts, with a customer; • identification of the performance obligations in the contract, including whether they are distinct within the context of the contract; • determination of the transaction price, including the constraint on variable consideration; • allocation of the transaction price to the performance obligations in the contract; and • recognition of revenue when, or as, performance obligations are satisfied. We allocate the transaction price of the arrangement based on the relative estimated standalone selling price ("SSP") of each distinct performance obligation. In determining SSP, we maximize observable inputs and consider a number of data points, including: • the pricing of standalone sales (in the instances where available); • the pricing established by management when setting prices for deliverables that are intended to be sold on a standalone basis; • contractually stated prices for deliverables that are intended to be sold on a standalone basis; and • other pricing factors, such as the geographical region in which the products are sold and expected discounts based on the customer size and type. We only include estimated amounts of variable consideration in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. We reduce transaction prices for estimated returns and other allowances that represent variable consideration under ASC 606, which we estimate based on historical return experience and other relevant factors, and record a corresponding refund liability as a component of accrued expenses and other current liabilities. Other forms of contingent revenue or variable consideration are infrequent. Revenue is recognized when control of these products and services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those services. We assess the timing of the transfer of products or services to the customer as compared to the timing of payments to determine whether a significant financing component exists. In accordance with the practical expedient in ASC 606-10-32-18, we do not assess the existence of a significant financing component when the difference between payment and transfer of deliverables is a year or less. If the difference in timing arises for reasons other than the provision of finance to either the customer or us, no financing component is deemed to exist. The primary purpose of our invoicing terms is to provide customers with simplified and predictable ways of purchasing our services, not to receive or provide financing from or to customers. We do not consider set-up fees nor other upfront fees paid by our customers to represent a financing component. Certain products are sold through distributors or resellers. Certain distributors and resellers have been granted right of return and selling incentives which are accounted for as variable consideration when estimating the amount of revenue to be recognized. Returns and credits are estimated at the contract inception and updated at the end of each reporting period as additional information becomes available. In accordance with the practical expedient in ASC 606-10-10-4, we apply a portfolio approach to estimate the variable consideration associated with this group of customers. Reimbursements for out-of-pocket costs generally include, but are not limited to, costs related to transportation, lodging and meals. Revenue from reimbursed out-of-pocket costs is accounted for as variable consideration. Shipping and handling activities are not considered a contract performance obligation. We record shipping and handling costs billed to customers as revenue with offsetting costs recorded as cost of revenue. Performance Obligations Hosting Hosting services, which allow our customers to use the hosted software over the contract period without taking possession of the software, are provided on a usage basis as consumed or on a fixed fee subscription basis. Our hosting contract terms generally range from one to five years. As each day of providing services is substantially the same and the customer simultaneously receives and consumes the benefits as access is provided, we have determined that our hosting services arrangements are a single performance obligation comprised of a series of distinct services. These services include variable consideration, which is typically a function of usage. We recognize revenue as each distinct service period is performed (i.e., recognized as incurred). Subscription basis revenue represents a single promise to stand-ready to provide access to our hosting services. Revenue is recognized over time on a ratable basis over the hosting contract term, which generally ranges from one to five years. Software Licenses On-premise software licenses sold with non-distinct professional services to customize and/or integrate the underlying software are accounted for as a combined performance obligation. Revenue from the combined performance obligation is recognized over time based upon the progress towards completion of the project, which is measured based on the labor hours already incurred to date as compared to the total estimated labor hours. Revenue from distinct on-premise software licenses, which do not require professional services to customize and/or integrate the software license, is recognized at the point in time when the software is made available to the customer and control is transferred. Revenue from software license sold on a royalty basis, where the license of intellectual property is the predominant item to which the royalty relates, is recognized in the period the usage occurs in accordance with the practical expedient in ASC 606-10-55-65(A). Maintenance and Support Our M&S contracts generally include telephone support and the right to receive unspecified upgrades and updates on a when-and-if available basis. M&S revenue is recognized over time on a ratable basis over the contract period because we transfer control evenly by providing a stand-ready service. Professional Services Revenue from distinct professional services, including training, is recognized over time based upon the progress towards completion of the project, which is measured based on the labor hours already incurred to date as compared to the total estimated labor hours. Hardware Hardware revenue is recognized at the point in time when control is transferred to the customer, which is typically upon delivery. Significant Judgments Determining whether products and services are considered distinct performance obligations that should be accounted for separately versus together may require significant judgment. Our license contracts often include professional services to customize and/or integrate the licenses into the customer’s environment. Judgment is required to determine whether the license is considered distinct and accounted for separately, or not distinct and accounted for together with professional services. Judgments are required to determine the SSP for each distinct performance obligation. When SSP is directly observable, we estimate SSP based upon the historical transaction prices, adjusted for geographic considerations, customer classes, and customer relationship profiles. In instances where SSP is not directly observable, we determine SSP using information that may include market conditions and other observable inputs. We may have more than one SSP for individual products and services due to the stratification of those products and services by customers and circumstances. In these instances, we may use information such as the size of the customer and geographic region in determining SSP. Determining SSP for performance obligations which we never sell separately also requires significant judgment. In estimating the SSP, we consider the likely price that would have resulted from established pricing practices had the deliverable been offered separately and the prices a customer would likely be willing to pay. From time to time, we may enter into arrangements with third party suppliers to resell products or services. In such cases, we evaluate whether we are the principal (i.e. report revenues on a gross basis) or agent (i.e. report revenues on a net basis). In doing so, we first evaluate whether we control the good or service before it is transferred to the customer. If we control the good or service before it is transferred to the customer, we are the principal; if not, we are the agent. Generally, we control a promised good or service before transferring that good or service to the customer and act as the principal to the transaction. Determining whether we control the good or service before it is transferred to the customer may require judgment. Disaggregated Revenue We disaggregate revenue from contracts with customers by reportable segment and products and services as this presentation depicts the timing, risks and uncertainty of our revenue streams, which is also in line with how we manage our businesses, assess performance, and determine management compensation. Our disaggregated revenue from continuing operations is as follows (dollars in thousands): For the Three Months Ended June 30, 2019 Hosting and professional services Product and licensing Maintenance and support Total Healthcare $ 142,502 $ 48,302 $ 37,062 $ 227,866 Enterprise 80,346 28,232 29,204 137,782 Automotive 28,042 43,625 93 71,760 Other 10,012 1,650 127 11,789 Total revenues $ 260,902 $ 121,809 $ 66,486 $ 449,197 For the Nine Months Ended June 30, 2019 Hosting and professional services Product and licensing Maintenance and support Total Healthcare $ 401,884 $ 183,039 $ 119,212 $ 704,135 Enterprise 235,562 63,285 83,829 382,676 Automotive 93,497 125,050 191 218,738 Other 40,658 5,975 252 46,885 Total revenues $ 771,601 $ 377,349 $ 203,484 $ 1,352,434 Hardware revenue comprised of approximately $6.4 million of total product and license revenue for the three months ended June 30, 2019 and $21.5 million for the nine months ended June 30, 2019 . Contract Acquisition Costs In conjunction with the adoption of ASC 606, we are required to capitalize certain contract acquisition costs. The capitalized costs primarily relate to paid commissions and other direct, incremental costs to acquire customer contracts. In accordance with the practical expedient in ASC 606-10-10-4, we apply a portfolio approach to estimate contract acquisition costs for groups of customer contracts. We elect to apply the practical expedient in ASC 340-40-25-4 and will expense contract acquisition costs as incurred where the expected period of benefit is one year or less. Sales commissions paid on renewal maintenance and support are not commensurate with sales commissions paid on the initial maintenance and support contract. Contract acquisition costs are deferred and amortized on a straight-line basis over the period of benefit, which we have estimated to be between one and five years. The period of benefit was determined based on an average customer contract term, expected contract renewals, changes in technology and our ability to retain customers including canceled contracts. Contract acquisition costs are classified as current or noncurrent assets based on when the expense will be recognized. The current and noncurrent portions of contract acquisition costs are included in Prepaid expenses and other current assets, and Other assets, respectively. As of June 30, 2019 , we had $18.6 million of current contract acquisition costs and $28.7 million of noncurrent contract acquisition costs. Commission expense is primarily included in Sales and marketing expense on the condensed consolidated statements of operations. We had amortization expense of $4.3 million related to contract acquisition costs for the three months ended June 30, 2019 and $11.5 million for the nine months ended June 30, 2019 . There was no impairment related to commission costs capitalized. Capitalized Contract Costs We capitalize incremental costs incurred to fulfill our contracts that (i) relate directly to the contract, (ii) are expected to generate resources that will be used to satisfy our performance obligation under the contract, and (iii) are expected to be recovered through revenue generated under the contract. Our capitalized costs consist primarily of setup costs, such as costs to standup, customize and develop applications for each customer, which are incurred to satisfy our stand-ready obligation to provide access to our connected offerings. These contract costs are expensed to cost of revenue as we satisfy our stand-ready obligation over the contract term which we estimate to be between one and five years. The contract term was determined based on an average customer contract term, expected contract renewals, changes in technology, and our ability to retain customers including canceled contracts. We classify capitalized contract costs as current or noncurrent based on the timing of when we expect to recognize the expense. The current and noncurrent portions of capitalized contract fulfillment costs are included in Prepaid expenses and other current assets, and Other assets, respectively. At June 30, 2019 , we had $7.0 million of short-term contract costs included with Prepaid expenses and other current assets and $95.2 million of long-term costs included within Other assets. Trade Accounts Receivable and Contract Balances We classify our right to consideration in exchange for deliverables as either a receivable or a contract asset. A receivable is a right to consideration that is unconditional (i.e. only the passage of time is required before payment is due). We present such receivables in Accounts receivable, net in our condensed consolidated balance sheets at their net estimated realizable value. We maintain an allowance for doubtful accounts to provide for the estimated amount of receivables that may not be collected. The allowance is based upon an assessment of customer creditworthiness, historical payment experience, the age of outstanding receivables and other applicable factors. Our contract assets and liabilities are reported in a net position on a contract-by-contract basis at the end of each reporting period. Contract assets include unbilled amounts from long-term contracts when revenue recognized exceeds the amount billed to the customer, and right to payment is not solely subject to the passage of time. The current and noncurrent portions of contract assets are included in Prepaid expenses and other current assets, and Other assets. As of June 30, 2019 , we had $68.2 million of current contract assets and $102.9 million of noncurrent contract assets. The table below shows significant changes in contract assets of continuing operations (dollars in thousands): Contract assets Balance as of October 1, 2018 $ 168,595 Revenues recognized but not billed 249,707 Amounts reclassified to accounts receivable (247,156 ) Balance at June 30, 2019 $ 171,146 Our contract liabilities, or Deferred revenue, consist of advance payments and billings in excess of revenues recognized. We classify Deferred revenue as current or noncurrent based on when we expect to recognize the revenues. At June 30, 2019 , we had $721.5 million of Deferred revenue. The table below shows significant changes in Deferred revenue of continuing operations (dollars in thousands): Deferred revenue Balance as of October 1, 2018 $ 693,272 Amounts bill but not recognized 712,594 Revenue recognized (684,383 ) Balance at June 30, 2019 $ 721,483 Remaining Performance Obligations The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied or partially unsatisfied at June 30, 2019 (dollars in thousands): Within One Year Two to Five Years Greater than Five Years Total Total revenue $ 754,280 $ 1,066,562 $ 185,857 $ 2,006,699

Disposition of Business (Notes)

Disposition of Business (Notes)	9 Months Ended
	Jun. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	Disposition of Businesses Sale of Imaging On November 7, 2018, our Board of Directors approved the divestiture of our Imaging business. On November 11, 2018, we entered into a sale agreement (the “Agreement") with Project Leopard AcquireCo Limited, a private limited company incorporated under the laws of England and Wales (and an affiliate of Kofax, Inc.) (the “Buyer"), relating to the sale of our Imaging business for a total cash consideration of approximately $400.0 million , subject to certain customary post-closing adjustments as set forth in the Agreement. Pursuant to the Agreement, we sold and transferred, and Buyer purchased and acquired, (i) the shares of certain subsidiaries through which we operate a portion of our Imaging business and (ii) certain assets used in or related to the business; and the Buyer assumed certain liabilities related to such assets or the business, subject to certain exclusions and indemnities as set forth in the Agreement. On February 1, 2019 , we completed the sale of our Imaging business and received approximately $404.0 million in cash, after estimated transaction expenses, and subject to post-closing finalization of the adjustments set forth in the Agreement. As a result, we recorded a gain of approximately $102.4 million , which is included within Net income from discontinued operations. There are a number of working capital and other adjustments under the Agreement and related ancillary agreements. We do not believe that post-closing working capital adjustments under the Agreement, if any, will have a material impact on our results of operations. For all periods presented, Imaging's results of operations have been included within discontinued operations and its assets and liabilities within held for sale in our condensed consolidated financial statements. The following table summarizes the results of the discontinued operations (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 (ASC 606) (ASC 605) (ASC 606) (ASC 605) Major line items constituting net income of Imaging: Revenue (a) $ — $ 53,438 $ 67,430 $ 155,890 Cost of revenue — 12,107 16,946 37,031 Research and development — 6,299 7,557 21,066 Sales and marketing (a) — 18,392 28,433 59,122 General and administrative — 987 1,997 3,211 Amortization of intangible assets — 4,261 5,219 12,757 Acquisition-related costs, net — — (386 ) — Restructuring and other charges, net — 3,895 13,251 5,194 Other — (200 ) — (38 ) Income (loss) from discontinued operations before income taxes (a) — 7,697 (5,587 ) 17,547 Provision (benefit) for income taxes — 1,014 (2,688 ) 2,013 Gain on disposition — — 102,371 — Net income from discontinued operations $ — $ 6,683 $ 99,472 $ 15,534 Supplemental information: Depreciation — 167 391 917 Amortization — 5,849 6,569 17,909 Stock compensation — 1,703 7,103 5,471 Capital expenditures for all periods presented were de minimis. (a) As more fully described in Note 2, as a result of the adoption of ASC 606 using the modified retrospective approach, Revenue for the six months ended March 31, 2019 reflected an increase of $2.4 million due to the upfront recognition of term licenses and the re-allocation of contract consideration to performance obligations based upon standalone selling prices; Sales and marketing expense for the six months ended March 31, 2019 reflected a decrease of $1.4 million due to the capitalization and amortization of commission expense; and the provision for income taxes for the three months ended March 31, 2019 reflected an increase in tax benefit of $1.6 million related to the tax effect of the ASC 606 adjustments. The following table summarizes the assets and liabilities included within discontinued operations (dollars in thousands): September 30, (ASC 605) Major classes of Imaging assets: Accounts receivable, net $ 30,959 Prepaid expenses and other current assets 3,443 Land, building and equipment, net 2,442 Goodwill 257,352 Intangible assets, net 99,507 Other assets 196 Total assets classified as held for sale $ 393,899 Major classes of Imaging liabilities: Accounts payable $ 3,604 Accrued expenses and other current liabilities 12,304 Deferred revenue 107,965 Other liabilities 2,658 Total liabilities classified as held for sale $ 126,531 Spin-off of Automotive On November 19, 2018, we announced our intent to spin off our Automotive business into an independent publicly traded company through a pro rata distribution to our common stock holders. Completion of the proposed spin-off is subject to certain conditions, including final approval by our Board of Directors. We intend to complete the separation of the business by the beginning of fiscal year 2020. Other Dispositions

Business Acquisitions

Business Acquisitions	9 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Business Acquisitions	Business Acquisitions We continue to expand our solutions and integrate our technologies in new offerings through acquisitions. A summary of our acquisition activities is as follows: Fiscal Year 2018 For the nine months ended June 30, 2018 , we completed several acquisitions in our Healthcare and Automotive segment for total cash consideration of $113.1 million and contingent payments with a fair value of $2.0 million and effective settlement of the preexisting relationship with the acquiree of $12.9 million. As a result, we recognized goodwill of $65.1 million and other intangible assets of $60.8 million , with a weighted average life of 6.0 years . Such acquisitions were not significant individually or in aggregate to our condensed consolidated financial statements for the periods presented. Acquisition-Related Costs, net Acquisition-related costs include costs related to business and asset acquisitions. These costs consist of (i) transition and integration costs, including retention payments, transitional employee costs and earn-out payments, and other costs related to integration activities; (ii) professional service fees, including financial advisory, legal, accounting, and other outside services incurred in connection with acquisition activities, and disputes and regulatory matters related to acquired entities; and (iii) fair value adjustments to acquisition-related contingencies. A summary of acquisition-related costs, net is as follows (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Transition and integration costs $ 1,531 $ 5,370 $ 6,623 $ 12,799 Professional service fees 950 1,254 1,406 2,705 Acquisition-related adjustments (1,327 ) (1,708 ) (1,806 ) (2,667 ) Total $ 1,154 $ 4,916 $ 6,223 $ 12,837

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets The changes in the carrying amount of Goodwill by reportable segment for the nine months ended June 30, 2019 are as follows (dollars in thousands): Goodwill Healthcare Enterprise Automotive Other Total Balance as of September 30, 2018 $ 1,430,325 $ 683,347 $ 1,119,947 $ 13,486 $ 3,247,105 Purchase accounting adjustments 113 — (172 ) — (59 ) Effect of foreign currency translation (1,354 ) (1,240 ) (1,532 ) (227 ) (4,353 ) Balance at June 30, 2019 $ 1,429,084 $ 682,107 $ 1,118,243 $ 13,259 $ 3,242,693 Other Intangible Assets The changes in the carrying amount of Intangible assets for the nine months ended June 30, 2019 are as follows (dollars in thousands): Intangible Assets Balance as of September 30, 2018 $ 450,001 Acquisitions 1,488 Amortization (78,126 ) Effect of foreign currency translation (429 ) Balance at June 30, 2019 $ 372,934 Fiscal Year 2018 Interim Impairment Analysis Effective the second quarter of fiscal year 2018, our Automotive business, which was previously included within our Mobile segment, became a standalone operating segment. As a result of the reorganization, the original Mobile reporting unit was separated into three discrete lines of business comprised of Automotive, Dragon TV, and Devices. Dragon TV was merged within our Enterprise segment, and Devices was included within Other segment. We assigned $1,080.5 million , $12.0 million , and $36.0 million of Goodwill to Automotive, Dragon TV and Devices, respectively, based on their relative fair values as of March 31, 2018 , and assessed the assigned Goodwill for impairment by comparing each component’s fair value to its carrying amount. As a result, we recorded a Goodwill impairment charge of $35.1 million related to Devices for the second quarter of fiscal 2018. Also during the second quarter of fiscal year 2018, our Subscriber Revenue Services ("SRS") reporting unit, originally included within our Mobile operating segment, recorded significantly lower revenue and profitability due to recent market disruptions in certain markets that we serve. We concluded that these financial results coupled with the rapid market shifts being experienced in the industry were factors that represented impairment indicators, triggering a review of Goodwill and indefinite-lived intangible assets for impairment during the second quarter of fiscal year 2018. Based on the result of the impairment assessment, the carrying value of SRS exceeded its fair value by $94.3 million . In addition, we recorded an $8.5 million deferred tax benefit related to SRS’s Goodwill, which is amortized over time for tax purposes, and therefore increased the impairment charge by the same amount. As a result, we recorded a Goodwill impairment charge of $102.8 million related to SRS for the second quarter of fiscal year 2018. After the impairment charge, Goodwill assigned to SRS was $17.8 million as of March 31, 2018. The assessment did not result in any impairment charge of Other intangible assets. Wind-down of Devices and Mobile Operator Services and Annual Goodwill Impairment Analysis During the fourth quarter of fiscal year 2018, in connection with our strategic business review announced in our earnings release issued on May 9, 2018, we restructured our SRS business by separating the voicemail transcription services business ("Voice-to-Text"), which will continue to operate as part of the Other Segment, and commenced a wind-down of our SRS Mobile Operator Services in India and Brazil, and our Devices businesses. The SRS business provides value-added services to mobile operators in India and Brazil ("Mobile Operator Services"). As a result, we revised our multi-year operating plans of Mobile Operator Services and Devices businesses, as part of our fiscal year 2019 budgeting process, to reflect a significant decline in revenue and operating income. The wind-down decision has resulted in significantly lower estimated future cash flows over a considerably shorter time horizon, which triggered a review of Goodwill and long-lived asset groups for impairment. As a result of the impairment review, we recorded an additional $15.0 million impairment charge for Devices for the fourth quarter of fiscal year 2018, including $7.6 million related to acquired trade names and customer relationships, $0.8 million related to acquired technology assets, $6.2 million related to fixed assets, and $0.4 million related to its remaining goodwill; we also recorded $25.1 million impairment charge for our Mobile Operator Services business for the fourth quarter of fiscal year 2018, including $12.9 million related to acquired trade names and customer relationships, $7.9 million related to acquired technology assets, $0.9 million related to fixed assets, and $3.4 million related to Goodwill.

Financial Instruments and Hedgi

Financial Instruments and Hedging Activities	9 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Instruments and Hedging Activities	Financial Instruments and Hedging Activities Derivatives Not Designated as Hedges Forward Currency Contracts We utilize foreign currency forward contracts to mitigate the risks associated with changes in foreign currency exchange rates. Generally, we enter into such contracts for less than 90 days and have no cash requirements until maturity. At June 30, 2019 and September 30, 2018 , we had outstanding contracts with a total notional value of $153.3 million and $117.1 million , respectively. We did not designate any forward contracts as hedging instruments for the nine months ended June 30, 2019 or 2018 . Therefore, changes in fair value of foreign currency forward contracts were recognized within Other income (expense), net in our condensed consolidated statements of operations. The cash flows related to the settlement of forward contracts not designated as hedging instruments are included in cash flows from investing activities within our condensed consolidated statement of cash flows. A summary of the derivative instruments is as follows (dollars in thousands): Derivatives Not Designated as Hedges Balance Sheet Classification Fair Value June 30, September 30, Foreign currency forward contracts Prepaid expenses and other current assets $ 100 $ 143 Foreign currency forward contracts Accrued expenses and other current liabilities (109 ) (1,192 ) A summary of income (loss) related to the derivative instruments for the three and nine months ended June 30, 2019 and 2018 is as follows (dollars in thousands): Income Statement Classification Three Months Ended June 30, Nine Months Ended June 30, Derivatives Not Designated as Hedges Income (Loss) Recognized 2019 2018 2019 2018 Foreign currency forward contracts Other income (expense), net $ (799 ) $ (1,597 ) $ (359 ) $ (2,381 )

Fair Value Measures

Fair Value Measures	9 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Measures	Fair Value Measurements Fair value is defined as the price that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date. Valuation techniques must maximize the use of observable inputs and minimize the use of unobservable inputs. When determining the fair value measurements for assets and liabilities required to be recorded at fair value, we consider the principal or most advantageous market in which we would transact and consider assumptions that market participants would use when pricing the asset or liability, such as inherent risk, transfer restrictions, and risk of nonperformance. The determination of the applicable level within the hierarchy of a particular financial asset or liability depends on the lowest level of inputs that are significant to the fair value measurement as of the measurement date as follows: • Level 1: Quoted prices for identical assets or liabilities in active markets. • Level 2: Observable inputs other than those described as Level 1. • Level 3: Unobservable inputs that are supportable by little or no market activities and are based on significant assumptions and estimates. Assets and liabilities measured at fair value on a recurring basis at June 30, 2019 and September 30, 2018 consisted of the following (dollars in thousands): June 30, 2019 Level 1 Level 2 Level 3 Total Assets: Money market funds (a) $ 386,071 $ — $ — $ 386,071 Time deposits (b) — 91,147 — 91,147 Commercial paper, $39,113 at cost (b) — 39,409 — 39,409 Corporate notes and bonds, $42,292 at cost (b) — 42,358 — 42,358 Foreign currency exchange contracts (b) — 100 — 100 Total assets at fair value $ 386,071 $ 173,014 $ — $ 559,085 Liabilities: Foreign currency exchange contracts (b) $ — $ (109 ) $ — $ (109 ) Contingent acquisition payments (c) — — (889 ) (889 ) Total liabilities at fair value $ — $ (109 ) $ (889 ) $ (998 ) September 30, 2018 Level 1 Level 2 Level 3 Total Assets: Money market funds (a) $ 200,004 $ — $ — $ 200,004 Time deposits (b) — 88,158 — 88,158 Commercial paper, $27,194 at cost (b) — 27,363 — 27,363 Corporate notes and bonds, $57,563 at cost (b) — 57,417 — 57,417 Foreign currency exchange contracts (b) — 143 — 143 Total assets at fair value $ 200,004 $ 173,081 $ — $ 373,085 Liabilities: Foreign currency exchange contracts (b) $ — $ (1,192 ) $ — $ (1,192 ) Contingent acquisition payments (c) — — (4,000 ) (4,000 ) Total liabilities at fair value $ — $ (1,192 ) $ (4,000 ) $ (5,192 ) (a) Money market funds are included within cash and cash equivalents in the consolidated balance sheets and are valued at quoted market prices in active markets. (b) Time deposits, commercial paper, corporate notes and bonds, and foreign currency exchange contracts are recorded at fair market values, which are determined based on the most recent observable inputs for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active or are directly or indirectly observable. Time deposits are generally for terms of one year or less. Commercial paper and Corporate notes and bonds generally mature within three years and had a weighted average maturity of 0.50 years as of June 30, 2019 and 0.61 years as of September 30, 2018 . (c) The fair values of our contingent consideration arrangements were determined using either the option pricing model with Monte Carlo simulation or the probability-weighted discounted cash flow method. The estimated fair value of our long-term debt was approximately $2,112.7 million (face value $2,137.0 million ) as of June 30, 2019 and $2,423.6 million (face value $2,437.0 million ) as of September 30, 2018 based on Level 2 measurements. The fair value of each borrowing was estimated using the average of the bid and ask trading quotes at each respective reporting date. There was no balance outstanding under our revolving credit agreement as of June 30, 2019 or September 30, 2018 . Additionally, contingent acquisition payments are recorded at fair values upon the acquisition, and remeasured in subsequent reporting periods with the changes in fair values recorded within acquisition-related costs, net. Such payments are contingent upon the achievement of specified performance targets and are valued using the option pricing model with Monte Carlo simulation or the probability-weighted discounted cash flow model. The following table provides a summary of changes in the aggregate fair value of the contingent acquisition payments for all periods presented (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Balance at beginning of period $ 1,450 $ 11,752 $ 4,000 $ 8,648 Earn-out liabilities established at time of acquisition — 1,500 — 2,000 Payments and foreign currency translation — (4,557 ) (2,550 ) (4,652 ) Adjustments to fair value included in acquisition-related costs, net (561 ) (660 ) (561 ) 2,039 Balance at end of period $ 889 $ 8,035 $ 889 $ 8,035 Contingent acquisition payments are to be made in periods through fiscal year 2021 . As of June 30, 2019 , the maximum amount payable based on the agreements was $1.7 million if the specified performance targets are achieved.

Accrued Expenses and Other Curr

Accrued Expenses and Other Current Liabilities	9 Months Ended
	Jun. 30, 2019
Payables and Accruals [Abstract]
Accrued Expenses and Other Current Liabilities	Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consisted of the following (dollars in thousands): June 30, September 30, Compensation $ 116,289 $ 174,984 Cost of revenue related liabilities 52,621 30,432 Consulting and professional fees 27,355 21,220 Accrued interest payable 12,681 21,326 Sales and other taxes payable 6,459 5,983 Facility-related liabilities 3,281 4,621 Sales and marketing incentives 2,508 1,889 Other 23,818 8,884 Total $ 245,012 $ 269,339

Restructuring and Other Charges

Restructuring and Other Charges, net	9 Months Ended
	Jun. 30, 2019
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	Restructuring and Other Charges, net Restructuring and other charges, net include restructuring expenses together with other charges that are unusual in nature, are the result of unplanned events, or arise outside of the ordinary course of our business. The following table sets forth accrual activities relating to restructuring reserves for the nine months ended June 30, 2019 (dollars in thousands): Personnel Facilities Total Balance at September 30, 2018 $ 9,690 $ 6,503 $ 16,193 Restructuring charges, net 19,104 2,553 21,657 Non-cash adjustment (307 ) (285 ) (592 ) Cash payments (23,429 ) (6,280 ) (29,709 ) Balance at June 30, 2019 $ 5,058 $ 2,491 $ 7,549 While Restructuring and other charges, net are excluded from our calculation of segment profit, the table below presents the Restructuring and other charges, net associated with each segment (dollars in thousands): Three Months Ended June 30, 2019 2018 Personnel Facilities Total Restructuring Other Charges Total Personnel Facilities Total Restructuring Other Charges Total Healthcare $ 222 $ 1 $ 223 $ — $ 223 $ 377 $ — $ 377 $ — $ 377 Enterprise (165 ) — (165 ) — (165 ) 3,412 (197 ) 3,215 — 3,215 Automotive (639 ) 32 (607 ) 14,778 14,171 1,233 — 1,233 — 1,233 Other 529 15 544 239 783 154 54 208 — 208 Corporate 730 354 1,084 22 1,106 1,148 893 2,041 (1,732 ) 309 Total $ 677 $ 402 $ 1,079 $ 15,039 $ 16,118 $ 6,324 $ 750 $ 7,074 $ (1,732 ) $ 5,342 Nine Months Ended June 30, 2019 2018 Personnel Facilities Total Restructuring Other Charges Total Personnel Facilities Total Restructuring Other Charges Total Healthcare $ 4,672 $ 142 $ 4,814 $ — $ 4,814 $ 3,678 $ 25 $ 3,703 $ — $ 3,703 Enterprise 5,086 13 5,099 — 5,099 3,939 2,170 6,109 — 6,109 Automotive 5,224 1,707 6,931 27,291 34,222 2,233 — 2,233 — 2,233 Other 1,443 15 1,458 3,306 4,764 1,498 624 2,122 — 2,122 Corporate 2,679 676 3,355 8,414 11,769 2,339 951 3,290 10,335 13,625 Total $ 19,104 $ 2,553 $ 21,657 $ 39,011 $ 60,668 $ 13,687 $ 3,770 $ 17,457 $ 10,335 $ 27,792 Fiscal Year 2019 For the nine months ended June 30, 2019 , we recorded restructuring charges of $21.7 million , which included $19.1 million related to the termination of approximately 391 employees and $2.6 million related to certain excess facilities. Of these amounts, $1.1 million was recorded for the three months ended June 30, 2019 , which included $0.7 million related to employee termination and $0.4 million related to certain excess facilities. These actions were part of our strategic initiatives focused on investment rationalization, process optimization and cost reduction. We expect the remaining outstanding severance of $5.1 million to be substantially paid during fiscal year 2019 , and the remaining balance of $2.5 million related to excess facilities to be paid through fiscal year 2027 , in accordance with the terms of the applicable leases. Additionally, for the nine months ended June 30, 2019 , we recorded $8.7 million of professional services fees related to our corporate transformational efforts, $27.7 million costs related to the separation of our Imaging business and separation and stand-up of our Automotive business, and $3.3 million accelerated depreciation related to our Mobile Operator Services, offset in part by a $0.7 million cash receipt from insurance claims related to the malware incident that occurred in the third quarter of fiscal year 2017 (the "2017 Malware Incident"). For the three months ended June 30, 2019 , we recorded $15.2 million costs related to the separation of our Imaging business and separation and stand-up of our Automotive business, $0.2 million accelerated depreciation related to our Mobile Operator Services, offset in part by $0.4 million income from insurance claims related to the 2017 Malware Incident. Fiscal Year 2018 For the nine months ended June 30, 2018 , we recorded restructuring charges of $17.5 million , which included $13.7 million related to the termination of approximately 280 employees and $3.8 million related to certain excess facilities. Of these amount, $7.1 million was recorded for the three months ended June 30, 2018 , which included $6.3 million related to employee termination and $0.8 million related to certain excess facilities. These actions were part of our strategic initiatives focused on investment rationalization, process optimization and cost reduction. Additionally, for the nine months ended June 30, 2018 , we recorded $5.6 million expense related to the transition agreement with our former CEO and a $7.2 million expense related to our remediation and restoration efforts related to the 2017 Malware Incident, offset in part by a $2.5 million income from insurance claims related to the 2017 Malware Incident. For the three months ended June 30, 2018 , we recorded a $2.8 million income from insurance claims related to the 2017 Malware Incident, offset in part by a $1.1 million

Debt and Credit Facilities

Debt and Credit Facilities	9 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Debt and Credit Facilities	Debt As of June 30, 2019 and September 30, 2018 , we had the following borrowing obligations (dollars in thousands): June 30, September 30, 5.625% Senior Notes due 2026, net of deferred issuance costs of $4.6 million and $5.1 million, respectively. Effective interest rate 5.625%. $ 495,364 $ 494,915 5.375% Senior Notes due 2020, net of deferred issuance costs of $1.2 million. Effective interest rate 5.375%. — 298,759 6.000% Senior Notes due 2024, net of deferred issuance costs of $1.6 million and $1.8 million, respectively. Effective interest rate 6.000%. 298,452 298,220 1.000% Convertible Debentures due 2035, net of unamortized discount of $98.1 million and $116.9 million, respectively, and deferred issuance costs of $4.6 million and $5.6 million, respectively. Effective interest rate 5.622%. 573,840 553,973 2.750% Convertible Debentures due 2031. Effective interest rate 7.432%. 46,568 46,568 1.250% Convertible Debentures due 2025, net of unamortized discount of $74.4 million and $82.4 million, respectively, and deferred issuance costs of $3.3 million and $3.7 million, respectively. Effective interest rate 5.578%. 272,350 263,863 1.500% Convertible Debentures due 2035, net of unamortized discount of $25.3 million and $32.8 million, respectively, and deferred issuance costs of $0.9 million and $1.1 million, respectively. Effective interest rate 5.394%. 237,736 229,906 Deferred issuance costs related to our Revolving Credit Facility (594 ) (843 ) Total debt 1,923,716 2,185,361 Less: current portion — — Total long-term debt $ 1,923,716 $ 2,185,361 The following table summarizes the maturities of our borrowing obligations as of June 30, 2019 (dollars in thousands): Fiscal Year Convertible Debentures (1) Senior Notes Total 2019 $ — $ — $ — 2020 — — — 2021 — — — 2022 310,463 — 310,463 2023 676,488 — 676,488 Thereafter 350,000 800,000 1,150,000 Total before unamortized discount 1,336,951 800,000 2,136,951 Less: unamortized discount and issuance costs (206,457 ) (6,778 ) (213,235 ) Total long-term debt $ 1,130,494 $ 793,222 $ 1,923,716 (1) Pursuant to the terms of each convertible instrument, holders have the right to redeem the debt on specific dates prior to maturity. The repayment schedule above assumes that payment is due on the next redemption date after June 30, 2019 . 5.625% Senior Notes due 2026 In December 2016 , we issued $500.0 million aggregate principal amount of 5.625% Senior Notes due on December 15, 2026 (the "2026 Senior Notes") in a private placement. The proceeds from the 2026 Senior Notes were approximately $495.0 million , net of issuance costs, and we used the proceeds to repurchase a portion of our 2020 Senior Notes. The 2026 Senior Notes bear interest at 5.625% per year, payable in cash semi-annually in arrears, beginning on June 15, 2017. The 2026 Senior Notes are unsecured senior obligations and are guaranteed on an unsecured senior basis by certain of our domestic subsidiaries ("Subsidiary Guarantors"). The 2026 Senior Notes and the guarantees rank equally in right of payment with all of our and the Subsidiary Guarantors’ existing and future unsecured senior debt and rank senior in right of payment to all of our and the Subsidiary Guarantors’ future unsecured subordinated debt. The 2026 Senior Notes and guarantees effectively rank junior to all our secured debt and that of the Subsidiary Guarantors to the extent of the value of the collateral securing such debt and to all liabilities, including trade payables, of our subsidiaries that have not guaranteed the 2026 Senior Notes. At any time before December 15, 2021 , we may redeem all or a portion of the 2026 Senior Notes at a redemption price equal to 100% of the aggregate principal amount of the 2026 Senior Notes to be redeemed, plus a "make-whole" premium and accrued and unpaid interest to, but excluding, the redemption date. At any time on or after December 15, 2021 , we may redeem all or a portion of the 2026 Senior Notes at certain redemption prices expressed as percentages of the principal amount, plus accrued and unpaid interest to, but excluding, the redemption date. 5.375% Senior Notes due 2020 In August 2012, we issued $700.0 million aggregate principal amount of 5.375% Senior Notes due on August 15, 2020 in a private placement. In October 2012, we issued an additional $350.0 million aggregate principal amount of our 5.375% Senior Notes (collectively the "2020 Senior Notes"). The 2020 Senior Notes bear interest at 5.375% per year, payable in cash semi-annually in arrears. The 2020 Senior Notes are our unsecured senior obligations and are guaranteed on an unsecured senior basis by certain of our domestic subsidiaries, ("the Subsidiary Guarantors"). The 2020 Senior Notes and guarantees rank equally in right of payment with all of our and the Subsidiary Guarantors' existing and future unsecured senior debt and rank senior in right of payment to all of our and the Subsidiary Guarantors' future unsecured subordinated debt. The 2020 Senior Notes and guarantees effectively rank junior to all secured debt of our and the Subsidiary Guarantors to the extent of the value of the collateral securing such debt and to all liabilities, including trade payables, of our subsidiaries that have not guaranteed the 2020 Senior Notes. In January 2017, we repurchased $600.0 million in aggregate principal amount of our 2020 Senior Notes using cash and cash equivalents and the net proceeds from our 2026 Senior Notes issued in December 2016. In January 2017, we recorded an extinguishment loss of $18.6 million . In accordance with the authoritative guidance for debt instruments, a loss on extinguishment is equal to the difference between the reacquisition price and the net carrying amount of the extinguished debt, including any unamortized debt discount or issuance costs. Following this activity, $450.0 million in aggregate principal amount of our 2020 Senior Notes remained outstanding. In September 2018 , we repurchased $150.0 million in aggregate principal amount of our 2020 Senior Notes at par. As a result, we wrote off the related unamortized deferred issuance costs related to the repayment and recorded an extinguishment loss of $0.3 million in fiscal year 2018. Following this activity, $300.0 million in aggregate principal amount of our 2020 Senior Notes remained outstanding. In March 2019, we repurchased the remaining $300.0 million in aggregate principal amount of our 2020 Senior Notes at par using the proceeds from the sale of our Imaging business. As a result, we wrote off the remaining unamortized deferred issuance costs related to the repayment and recorded an extinguishment loss of $0.9 million for the three months ended March 31, 2019. Following this activity, we have fully repaid our 2020 Senior Notes and no amount remained outstanding. 6.000% Senior Notes due 2024 In June 2016 , we issued $300.0 million aggregate principal amount of 6.0% Senior Notes due on July 1, 2024 (the "2024 Senior Notes") in a private placement. The proceeds from the 2024 Senior Notes were approximately $297.5 million , net of issuance costs. The 2024 Senior Notes bear interest at 6.0% per year, payable in cash semi-annually in arrears. The 2024 Senior Notes are unsecured senior obligations and are guaranteed on an unsecured senior basis by our Subsidiary Guarantors. The 2024 Senior Notes and the guarantees rank equally in right of payment with all of our and the Subsidiary Guarantors’ existing and future unsecured senior debt, and rank senior in right of payment to all of our and the Subsidiary Guarantors’ future unsecured subordinated debt. The 2024 Senior Notes and guarantees effectively rank junior to all our secured debt and that of the Subsidiary Guarantors to the extent of the value of the collateral securing such debt and to all liabilities, including trade payables, of our subsidiaries that have not guaranteed the 2024 Senior Notes. At any time before July 1, 2019, we may redeem all or a portion of the 2024 Senior Notes at a redemption price equal to 100% of the aggregate principal amount of the 2024 Senior Notes to be redeemed, plus a "make-whole" premium and accrued and unpaid interest to, but excluding, the redemption date. At any time on or after July 1, 2019, we may redeem all or a portion of the 2024 Senior Notes at certain redemption prices expressed as percentages of the principal amount, plus accrued and unpaid interest to, but excluding, the redemption date. 1.0% Convertible Debentures due 2035 In December 2015, we issued $676.5 million in aggregate principal amount of 1.0% Senior Convertible Debentures due in 2035 (the "1.0% 2035 Debentures") in a private placement. The 1.0% 2035 Debentures bear interest at 1.0% per year, payable in cash semi-annually in arrears. The 1.0% 2035 Debentures mature on December 15, 2035 , subject to the right of the holders to require us to redeem the 1.0% 2035 Debentures on December 15, 2022, 2027, or 2032 . The 1.0% 2035 Debentures are general senior unsecured obligations and rank equally in right of payment with all of our existing and future unsecured, unsubordinated indebtedness and senior in right of payment to any indebtedness that is contractually subordinated to the 1.0% 2035 Debentures. The 1.0% 2035 Debentures will be effectively subordinated to indebtedness and other liabilities of our subsidiaries. The initial conversion price is approximately $27.22 per share. At issuance, we allocated $495.4 million to long-term debt, and $181.1 million has been recorded as additional paid-in capital, which is being amortized to interest expense using the effective interest rate method through December 2022 . If we distribute to all holders of our common stock a per share dividend exceeding 10% of the closing sale price of our common stock on the trading day preceding the declaration date for such distribution (e.g. a spin-off), the holders will have the right to convert all or any portion of their debentures at the conversion ratio of 36.7360 shares per $1,000 principal amount, multiplied by the then current stock price. As of June 30, 2019 , none of the conversion criteria were met for the 1.0% 2035 Debentures. If the conversion criteria were met, we could be required to repay all or some of the aggregate principal amount in cash prior to the maturity date. 2.75% Convertible Debentures due 2031 In October 2011 , we issued $690.0 million in aggregate principal amount of 2.75% Senior Convertible Debentures due in 2031 (the " 2.75% 2031 Debentures") in a private placement. The 2.75% 2031 Debentures bear interest at 2.75% per year, payable in cash semi-annually in arrears. The 2.75% 2031 Debentures mature on November 1, 2031 , subject to the right of the holders to require us to redeem the 2.75% 2031 Debentures on November 1, 2021, and 2026 . The 2.75% 2031 Debentures are general senior unsecured obligations and rank equally in right of payment with all of our existing and future unsecured, unsubordinated indebtedness and senior in right of payment to any indebtedness that is contractually subordinated to the 2.75% 2031 Debentures. The 2.75% 2031 Debentures will be effectively subordinated to indebtedness and other liabilities of our subsidiaries. The initial conversion price is approximately $32.30 per share. At issuance, we allocated $533.6 million to Long-term debt, and $156.4 million has been recorded as Additional paid-in capital, which is being amortized to Interest expense using the effective interest rate method through November 2017 . In June 2015, we entered into separate privately negotiated agreements with certain holders of our 2031 Debentures to exchange, in a private placement, $256.2 million in aggregate principal amount of our 2031 Debentures for approximately $263.9 million in aggregate principal amount of our 1.5% 2035 Debentures. In December 2015, we entered into separate privately negotiated agreements with certain holders of our 2031 Debentures to repurchase $38.3 million in aggregate principal with proceeds received from the issuance of our 1.0% 2035 Debentures. In March 2017, we entered into separate privately negotiated agreements with certain holders of our 2031 Debentures to repurchase $17.8 million in aggregate principal with proceeds received from the issuance of our 1.25% Senior Convertible Debentures issued in March 2017. In November 2017, holders of approximately $331.2 million in aggregate principal amount of the outstanding 2031 Debentures exercised their right to require us to repurchase such debentures. Following the repurchase, $46.6 million in aggregate principal amount of the 2.75% 2031 Debentures remains outstanding. On or after November 6, 2017, we have the right to call for redemption of some or all of the remaining outstanding 2031 Debentures. If we distribute to all holders of our common stock a per share dividend exceeding 10% of the closing sale price of our common stock on the trading day preceding the declaration date for such distribution (e.g. a spin-off), the holders will have the right to convert all or any portion of their debentures at the conversion ratio of 30.9610 shares per $1,000 principal amount, multiplied by the then current stock price. As of June 30, 2019 , none of the conversion criteria were met for the 2.75% 2031 Debentures. If the conversion criteria were met, we could be required to repay all or some of the aggregate principal amount in cash prior to the maturity date. 1.25% Convertible Debentures due 2025 In March 2017, we issued $350.0 million in aggregate principal amount of 1.25% Senior Convertible Debentures due in 2025 (the "1.25% 2025 Debentures") in a private placement. The 1.25% 2025 Debentures mature on April 1, 2025. The 1.25% 2025 Debentures are general senior unsecured obligations and rank equally in right of payment with all of our existing and future unsecured, unsubordinated indebtedness and senior in right of payment to any indebtedness that is contractually subordinated to the 1.25% 2025 Debentures. The 1.25% 2025 Debentures will be effectively subordinated to indebtedness and other liabilities of our subsidiaries. The initial conversion price is approximately $22.22 per share. At issuance, we allocated $252.1 million to Long- term debt, and $97.9 million has been recorded as Additional paid-in capital, which is being amortized to Interest expense using the effective interest rate method through April 1, 2025. If we distribute to all holders of our common stock a per share dividend exceeding 10% of the closing sale price of our common stock on the trading day preceding the declaration date for such distribution (e.g. a spin-off), the holders will have the right to convert all or any portion of their debentures at the conversion ratio of 45.0106 shares per $1,000 principal amount, multiplied by the then current stock price. As of June 30, 2019 , none of the conversion criteria were met for the 1.25% 2025 Debentures. If the conversion criteria were met, we could be required to repay all or some of the aggregate principal amount in cash prior to the maturity date. 1.50% Convertible Debentures due 2035 In June 2015, we issued $263.9 million in aggregate principal amount of 1.50% Senior Convertible Debentures due in 2035 (the "1.5% 2035 Debentures") in exchange for $256.2 million in aggregate principal amount of our 2031 Debentures. The 1.5% 2035 Debentures were issued at 97.09% of the principal amount, which resulted in a discount of $7.7 million . The 1.5% 2035 Debentures bear interest at 1.50% per year, payable in cash semi-annually in arrears. The 1.5% 2035 Debentures mature on November 1, 2035, subject to the right of the holders to require us to redeem the 1.5% 2035 Debentures on November 1, 2021, 2026, or 2031. The 1.5% 2035 Debentures are general senior unsecured obligations and rank equally in right of payment with all of our existing and future unsecured, unsubordinated indebtedness and senior in right of payment to any indebtedness that is contractually subordinated to the 1.5% 2035 Debentures. The 1.5% 2035 Debentures will be effectively subordinated to indebtedness and other liabilities of our subsidiaries. The initial conversion price is approximately $23.26 per share. At issuance, we allocated $208.6 million to Long-term debt, and $55.3 million has been recorded as Additional paid-in capital, which is being amortized to Interest expense using the effective interest rate method through November 2021. If we distribute to all holders of our common stock a per share dividend exceeding 10% of the closing sale price of our common stock on the trading day preceding the declaration date for such distribution (e.g. a spin-off), the holders will have the right to convert all or any portion of their debentures at the conversion ratio of 42.9978 shares per $1,000 principal amount, multiplied by the then current stock price. As of June 30, 2019 , none of the conversion criteria were met for the 1.5% 2035 Debentures. If the conversion criteria were met, we could be required to repay all or some of the aggregate principal amount in cash prior to the maturity date. Revolving Credit Facility Our revolving credit agreement (the “Revolving Credit Facility"), which expires on April 15, 2021, provides for aggregate borrowing commitments of $242.5 million , including the revolving facility loans, the swingline loans and issuance of letters of credit. As of June 30, 2019 , after taking into account the outstanding letters of credit of $5.8 million , we had $236.7 million available for borrowing under the Revolving Credit Facility. The borrowing outstanding under the Revolving Credit Facility bears interest at either (i) LIBOR plus an applicable margin of 1.50% or 1.75% , or (ii) the alternative base rate plus an applicable margin of 0.50% or 0.75% . The Revolving Credit Facility is secured by substantially all our assets. The Revolving Credit Facility contains customary affirmative and negative covenants and conditions to borrowing, as well as customary events of default. As of June 30, 2019 , we are in compliance with all the debt covenants.

Stockholders' Equity Stockholde

Stockholders' Equity Stockholders' Equity (Notes)	9 Months Ended
	Jun. 30, 2019
Stockholders' Equity Attributable to Parent [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	Stockholders' Equity Share Repurchases On April 29, 2013 , our Board of Directors approved a share repurchase program for up to $500.0 million , which was increased by $500.0 million on April 29, 2015. On August 1, 2018 , our Board of Directors approved an additional $500.0 million under our share repurchase program. Under the terms of the share repurchase program, we have the ability to repurchase shares through a variety of methods, which may include open market purchases, privately negotiated transactions, block trades, accelerated stock repurchase transactions, or any combination of such methods. The share repurchase program does not require us to acquire any specific number of shares and may be modified, suspended, extended or terminated by us at any time without prior notice. The timing and the amount of any purchases will be determined by management based on an evaluation of market conditions, capital allocation alternatives, and other factors. We repurchased 1.7 million shares of our common stock for $29.6 million for the three months ended June 30, 2019 and 7.8 million shares of our common stock for $120.9 million for the nine months ended June 30, 2019 . For the three and nine months ended June 30, 2018 , we repurchased 8.1 million shares of our common stock for $112.0 million under the program. Since the commencement of the program, we have repurchased an aggregate of 63.9 million shares for $1,063.6 million . The amount paid in excess of par value is recognized in Additional paid in capital. Shares were retired upon repurchase. As of June 30, 2019 , approximately $436.4 million remained available for future repurchases under the program.

Net Income (Loss) Per Share

Net Income (Loss) Per Share	9 Months Ended
	Jun. 30, 2019
Earnings Per Share, Basic and Diluted [Abstract]
Net (Loss) Income Per Share	Net Income (Loss) Per Share The following table sets forth the computation for basic and diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Numerator: Net income (loss) from continuing operations $ 9,259 $ (20,720 ) $ 6,209 $ (140,396 ) Net income from discontinued operations — 6,683 99,472 15,534 Net income (loss) $ 9,259 $ (14,037 ) $ 105,681 $ (124,862 ) Denominator: Weighted average common shares outstanding — basic 285,942 292,663 285,064 292,703 Dilutive effect of employee stock compensation plans 2,706 — 3,089 — Weighted average common shares outstanding — diluted 288,648 292,663 288,153 292,703 Net income (loss) per common share - basic: Continuing operations $ 0.03 $ (0.07 ) $ 0.02 $ (0.48 ) Discontinued operations — 0.02 0.35 0.05 Total net income (loss) per basic common share $ 0.03 $ (0.05 ) $ 0.37 $ (0.43 ) Net income (loss) per common share - diluted: Continuing operations $ 0.03 $ (0.07 ) $ 0.02 $ (0.48 ) Discontinued operations — 0.02 0.35 0.05 Total net income (loss) per diluted common share $ 0.03 $ (0.05 ) $ 0.37 $ (0.43 ) Anti-dilutive equity instruments excluded from the calculation 527 4,408 673 3,838 Contingently issuable awards excluded from the calculation (a) 2,555 1,975 2,542 1,801 (a)

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Jun. 30, 2019
Share-based Compensation [Abstract]
Stock-Based Compensation	Stock-Based Compensation On January 17, 2019, our shareholders approved amendments to the Company’s amended and restated 2000 Stock Plan (the "Amended and Restated 2000 Stock Plan"). The Amended and Restated 2000 Stock Plan (i) increases the number of shares issuable from 82,250,000 to 83,500,000 shares; (ii) permits the Company’s Board of Directors (the "Board") to make proportional adjustments to outstanding awards affected by a change in the Company’s capital structure, and in addition to or in lieu of such adjustments, to permit the Board to pay dividends, dividend equivalents, or similar rights in conjunction to any such changes in the Company’s capital structure; and (iii) contains certain updates to reflect changes in law relating to Section 162(m). As of June 30, 2019 , we had 8.5 million shares available for future grants under the Amended and Restated 2000 Stock Plan. We recognize stock-based compensation expenses over the requisite service periods. Our share-based awards are classified within equity. The amounts included in the condensed consolidated statements of operations related to stock-based compensation are as follows (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Cost of hosting and professional services $ 7,280 $ 6,790 $ 20,093 $ 20,474 Cost of product and licensing 197 114 593 492 Cost of maintenance and support 583 551 730 1,770 Research and development 10,262 8,034 26,912 24,798 Sales and marketing 7,593 8,461 24,488 25,997 General and administrative 10,017 9,549 27,327 27,935 Total $ 35,932 $ 33,499 $ 100,143 $ 101,466 Stock Options The table below summarizes activities related to stock options for the nine months ended June 30, 2019 : Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value (a) Outstanding at September 30, 2018 19,144 $ 17.31 Exercised (1,500 ) $ 12.79 Expired (4,528 ) $ 17.89 Outstanding at June 30, 2019 13,116 $ 17.63 2.7 years $ 0.02 million Exercisable at June 30, 2019 13,116 $ 17.63 2.7 years $ 0.02 million Exercisable at June 30, 2018 20,504 $ 17.16 2.5 years $ 0.10 million (a) The aggregate intrinsic value in this table represents any excess of the closing market price of our common stock as of June 30, 2019 ( $15.97 ) over the exercise price of the underlying options. The aggregate intrinsic values of stock options exercised during the nine months ended June 30, 2019 and 2018 were de minimis. Restricted Units Restricted units are not included in issued and outstanding common stock until the units are vested and underlying shares are released. The purchase price for vested restricted units is $0.001 per share. The table below summarizes activities relating to restricted units for the nine months ended June 30, 2019 : Number of Shares Underlying Restricted Units — Contingent Awards Number of Shares Underlying Restricted Units — Time-Based Awards Outstanding at September 30, 2018 3,039,568 6,872,087 Granted 1,342,836 6,214,882 Earned/released (1,386,735 ) (5,220,312 ) Modification (a) (296,759 ) 296,759 Forfeited (688,835 ) (1,159,444 ) Outstanding at June 30, 2019 2,010,075 7,003,972 Weighted average remaining recognition period of outstanding restricted units 1.6 years 1.6 years Unrecognized stock-based compensation expense of outstanding restricted units $27.0 million $62.2 million Aggregate intrinsic value of outstanding restricted units (b) $32.1 million $111.9 million (a) 296,759 shares of contingently issuable awards were modified to time-based awards with only service conditions in December 2018. (b) The aggregate intrinsic value in this table represents any excess of the closing market price of our common stock as of June 30, 2019 ( $15.97 ) over the purchase price of the underlying restricted units. A summary of the weighted-average grant-date fair value of restricted units granted, and the aggregate intrinsic value of restricted units vested during the periods noted is as follows: Nine Months Ended June 30, 2019 2018 Weighted-average grant-date fair value per share $ 17.30 $ 15.76 Total intrinsic value of shares vested (in millions) $ 106.1 $ 115.3

Income Taxes

Income Taxes	9 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The components of income (loss) from continuing operations before income taxes are as follows (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Domestic $ (4,912 ) $ (42,438 ) $ (20,475 ) $ (162,305 ) Foreign 21,957 31,277 34,498 (45,508 ) Income (loss) before income taxes $ 17,045 $ (11,161 ) $ 14,023 $ (207,813 ) The components of provision (benefit) for income taxes are as follows (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Domestic $ (3,086 ) $ (339 ) $ (8,805 ) $ (76,130 ) Foreign 10,872 9,898 16,619 8,713 Provision (benefit) for income taxes $ 7,786 $ 9,559 $ 7,814 $ (67,417 ) Effective tax rate 45.7 % (85.6 )% 55.7 % 32.4 % The effective tax rates were estimated based upon estimated income for the year, the composition of the income in different countries, changes relating to valuation allowances for certain countries if and as necessary, and adjustments, if any, for the potential tax consequences, benefits or resolutions of audits or other tax contingencies. Our aggregate statutory income tax rate in foreign jurisdictions is lower than our statutory income tax rate in the United States; the majority of our income before provision for income taxes from foreign operations has been earned by subsidiaries in Ireland. Our effective tax rate may be adversely affected by earnings being lower than anticipated in countries where we have lower statutory tax rates and higher than anticipated in countries where we have higher statutory tax rates. Our effective income tax rate was 45.7% for the three months ended June 30, 2019 , compared to (85.6)% for the three months ended June 30, 2018 . The effective tax rates for the three months ended June 30, 2019 and June 30, 2018 differed from the U.S. federal statutory rates of 21.0% and 24.53% , respectively, primarily due to the valuation allowance related to losses in the United States. Our effective income tax rate was 55.7% for the nine months ended June 30, 2019 , compared to 32.4% for the nine months ended June 30, 2018 . The effective tax rates for the nine months ended June 30, 2019 and June 30, 2018 differed from the U.S. federal statutory rates of 21.0% and 24.53% , respectively, primarily due to the valuation allowance related to losses in the United States. Additionally, for the nine months ended June 30, 2018 , we recognized approximately $87.0 million of deferred tax benefit from the remeasurement of deferred tax assets and liabilities offset by approximately $2.0 million estimated tax provision for deemed repatriated foreign earnings as a result of the Tax Cuts and Jobs Act ("TCJA") enacted in December 2017.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	ommitments and Contingencies Litigation and Other Claims Similar to many companies in the software industry, we are involved in a variety of claims, demands, suits, investigations and proceedings that arise from time to time relating to matters incidental to the ordinary course of our business, including at times actions with respect to contracts, intellectual property, employment, benefits and securities matters. At each balance sheet date we evaluate contingent liabilities associated with these matters in accordance with ASC 450 "Contingencies." If the potential loss from any claim or legal proceeding is considered probable and the amount can be reasonably estimated, we accrue a liability for the estimated loss. Significant judgments are required for the determination of probability and the range of the outcomes, and estimates are based only on the best information available at the time. Due to the inherent uncertainties involved in claims and legal proceedings and in estimating losses that may arise, actual outcomes may differ from our estimates. Contingencies deemed not probable or for which losses were not estimable in one period may become probable, or losses may become estimable in later periods, which may have a material impact on our results of operations and financial position. As of June 30, 2019 , accrued losses were not material to our condensed consolidated financial statements, and we do not expect any pending matter to have a material impact on our condensed consolidated financial statements. Guarantees and Other We include indemnification provisions in the contracts we enter into with customers and business partners. Generally, these provisions require us to defend claims arising out of our products’ infringement of third-party intellectual property rights, breach of contractual obligations and/or unlawful or otherwise culpable conduct. The indemnity obligations generally cover damages, costs and attorneys’ fees arising out of such claims. In most, but not all cases, our total liability under such provisions is limited to either the value of the contract or a specified, agreed upon amount. In some cases, our total liability under such provisions is unlimited. In many, but not all cases, the term of the indemnity provision is perpetual. While the maximum potential amount of future payments we could be required to make under all the indemnification provisions is unlimited, we believe the estimated fair value of these provisions is minimal due to the low frequency with which these provisions have been triggered. We indemnify our directors and officers to the fullest extent permitted by Delaware law, which provides among other things, indemnification to directors and officers for expenses, judgments, fines, penalties and settlement amounts incurred by such persons in their capacity as a director or officer of the company, regardless of whether the individual is serving in any such capacity at the time the liability or expense is incurred. Additionally, in connection with certain acquisitions, we agreed to indemnify the former officers and members of the boards of directors of those companies, on similar terms as described above, for a period of six years from the acquisition date. In certain cases, we purchase director and officer insurance policies related to these obligations, which fully cover the six -year period. To the extent that we do not purchase a director and officer insurance policy for the full period of any contractual indemnification, and such directors and officers do not have coverage under separate insurance policies, we would be required to pay for costs incurred, if any, as described above.

Segment and Geographic Informat

Segment and Geographic Information and Significant Customers	9 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment and Geographic Information and Significant Customers	Segment and Geographic Information Our Chief Operating Decision Maker ("CODM") regularly reviews segment revenues and segment profits for performance evaluation and resources allocation. Segment revenues include certain acquisition-related adjustments for revenues that would otherwise have been recognized without the acquisition. Segment profits reflect controllable costs directly related to each segment and the allocation of certain corporate expenses such as, corporate sales and marketing expenses and research and development project costs that benefit multiple segments. Certain items such as stock-based compensation, amortization of intangible assets, acquisition-related costs, net, restructuring and other charges, net, other expenses, net and certain unallocated corporate expenses are excluded from segment profits, which allow for more meaningful comparisons to the financial results of the historical operations for performance evaluation and resources allocation by our CODM. • The Healthcare segment is primarily engaged in providing clinical speech and clinical language understanding solutions that improve the clinical documentation process, from capturing the complete patient record to improving clinical documentation and quality measures for reimbursement. • The Enterprise segment is primarily engaged in using speech, natural language understanding, and artificial intelligence to provide automated customer solutions and services for voice, mobile, web and messaging channels. • The Automotive segment is primarily engaged in providing automotive manufacturers and their suppliers branded and personalized virtual assistants and connected car services built on our voice recognition and natural language understanding technologies. As more fully disclosed in Note 4 , on November 19, 2018, we announced our intent to spin off our Automotive business into an independent publicly-traded company through a pro rata distribution to our common stock holders. Completion of the proposed spin-off is subject to certain conditions, including final approval by our Board of Directors. We expect to complete the spin-off by the beginning of fiscal year 2020. • The Other segment includes our SRS business and our Devices business. Our SRS business provides value-added services to mobile operators in India and Brazil ("Mobile Operator Services") and voicemail transcription services to mobile operators in the rest of the world ("Voicemail-to-Text"). Our Devices business provides speech recognition solutions and predictive text technologies to handset devices. Our Devices revenue has been declining due to the ongoing consolidation of our handset manufacturer customer base and continued erosion of our penetration of the remaining market. During the fourth quarter of fiscal 2018, in connection with our comprehensive portfolio and business review efforts, we commenced a wind-down of our Devices and Mobile Operator Services businesses. In May 2019, we completed the sale of our Mobile Operator Services business in Brazil, and July 2019, we completed the sale of our Mobile Operator Services business in India. The sale prices and any gain or loss was immaterial. As more fully described in Note 4, effective the first quarter of fiscal year 2019, the results of our Imaging segment, previously a reportable segment, have been included within discontinued operations due to the completion of the sale of Imaging on February 1, 2019. As a result, effective the first quarter of fiscal year 2019, we changed our corporate overhead allocation methodology to re-allocate the stranded costs related to our Imaging business to the remaining operating segments included within continuing operations. Our segment presentation for the three and nine months ended June 30, 2018 has been restated to reflect the re-allocation of stranded costs. For the three months ended June 30, 2019 and 2018, $1.9 million and $2.1 million of stranded costs have been included within total segment profits and re-allocated to Healthcare, Enterprise, Automotive, and Other; for the nine months ended June 30, 2019 and 2018, $3.7 million and $5.9 million of stranded costs have been included within total segment profits and re-allocated to Healthcare, Enterprise, Automotive, and Other. We do not track our assets by segment. Consequently, it is not practical to show assets or depreciation by segment. The following table presents segment results along with a reconciliation of segment profit to Income (loss) before income taxes (dollars in thousands): Three Months Ended Nine Months Ended June 30, June 30, 2019 2018 2019 2018 Segment revenues : (ASC 606) (ASC 605) (ASC 606) (ASC 605) Healthcare $ 228,384 $ 236,194 $ 704,911 $ 742,969 Enterprise 137,888 119,596 383,217 352,862 Automotive 72,982 73,754 222,406 204,202 Other 11,790 22,241 46,885 74,328 Total segment revenues 451,044 451,785 1,357,419 1,374,361 Less: acquisition-related revenues adjustments (1,847 ) (2,336 ) (4,985 ) (11,495 ) Total revenues 449,197 449,449 1,352,434 1,362,866 Segment profit: Healthcare 79,978 76,504 247,036 238,966 Enterprise 40,820 32,513 109,015 95,078 Automotive 30,662 27,963 76,627 79,708 Other 4,378 2,967 15,819 12,298 Total segment profit 155,838 139,947 448,497 426,050 Corporate expenses and other, net (36,904 ) (41,135 ) (104,963 ) (148,214 ) Acquisition-related revenues (1,849 ) (2,336 ) (4,985 ) (11,495 ) Stock-based compensation (35,932 ) (33,499 ) (100,143 ) (101,466 ) Amortization of intangible assets (25,391 ) (32,028 ) (78,126 ) (95,838 ) Acquisition-related costs, net (1,154 ) (4,916 ) (6,223 ) (12,837 ) Restructuring and other charges, net (16,118 ) (5,342 ) (60,668 ) (27,792 ) Impairment of goodwill — — — (137,907 ) Other expenses, net (21,445 ) (31,852 ) (79,366 ) (98,314 ) Income (loss) before income taxes $ 17,045 $ (11,161 ) $ 14,023 $ (207,813 ) No country outside of the United States provided greater than 10% of our total revenues. Revenues, classified by the major geographic areas in which our customers are located, were as follows (dollars in thousands): Three Months Ended Nine Months Ended June 30, June 30, 2019 2018 2019 2018 (ASC 606) (ASC 605) (ASC 606) (ASC 605) United States $ 337,411 $ 333,809 $ 1,019,945 $ 1,014,295 International 111,786 115,640 332,489 348,571 Total revenues $ 449,197 $ 449,449 $ 1,352,434 $ 1,362,866

Supplemental Cash Flow (Notes)

Supplemental Cash Flow (Notes)	9 Months Ended
	Jun. 30, 2019
Supplemental Cash Flow [Abstract]
Cash Flow, Supplemental Disclosures [Text Block]	. Supplemental Cash Flow Information Cash paid for Interest and Income Taxes: Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 (Dollars in thousands) Interest paid $ 22,657 $ 22,536 $ 63,411 $ 71,244 Income taxes paid $ 7,058 $ 2,530 $ 14,272 $ 9,895 Non-Cash Investing and Financing Activities: From time to time, we issue shares of our common stock in connection with our business and asset acquisitions, including shares issued as payment for acquisitions, shares initially held in escrow, and shares issued as payment for contingent consideration, as more fully described in Note 5

Related party transaction (Note

Related party transaction (Notes)	9 Months Ended
	Jun. 30, 2019
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	Related Party Transaction In January 2018, we entered into a software and license agreement (the "License Agreement") with Magnet Systems, Inc. ("Magnet"). A member of the Magnet board of directors also served on our Board of Directors at the time of the transaction. Pursuant to the License Agreement, Magnet granted Nuance a perpetual software license to certain technology for a one-time payment of $5.0 million in cash, with $3.5 million paid immediately upon the effective date of the License Agreement and $1.5 million payable upon the earlier of (i) the 120-day period following the effective date of the License Agreement or (ii) signature of a statement of work for the engineering services described below. The amount for license was fully paid in fiscal year 2018. Additionally, we entered into a service agreement (the "Service Agreement") with Magnet, pursuant to which, Magnet would provide engineering services to assist in integrating the licensed technology into certain of our Enterprise solutions. The fees under the Service Agreement total $2.0 million , payable in six equal monthly installments upon the signature of the statement of work, which was finalized within 90 days following the effective date of the License Agreement. We incurred $2.0 million

Revenue Recognition Revenue Rec

Revenue Recognition Revenue Recognition (Policies)	9 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Policy Text Block]	We derive revenue from the following sources: (1) hosting services, (2) software licenses, including royalties, (3) maintenance and support ("M&S"), (4) professional services, and (5) sale of hardware. Revenue is reported net of applicable sales and use tax, value-added tax and other transaction taxes imposed on the related transaction including mandatory government charges that are passed through to our customers. We account for a contract when both parties have approved and committed to the contract, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable. The majority of our arrangements with customers typically contain multiple products and services. We account for individual products and services separately if they are distinct--that is, if a product or service is separately identifiable from other items in the contract and if a customer can benefit from it on its own or with other resources that are readily available to the customer. We recognize revenue after applying the following five steps: • identification of the contract, or contracts, with a customer; • identification of the performance obligations in the contract, including whether they are distinct within the context of the contract; • determination of the transaction price, including the constraint on variable consideration; • allocation of the transaction price to the performance obligations in the contract; and • recognition of revenue when, or as, performance obligations are satisfied. We allocate the transaction price of the arrangement based on the relative estimated standalone selling price ("SSP") of each distinct performance obligation. In determining SSP, we maximize observable inputs and consider a number of data points, including: • the pricing of standalone sales (in the instances where available); • the pricing established by management when setting prices for deliverables that are intended to be sold on a standalone basis; • contractually stated prices for deliverables that are intended to be sold on a standalone basis; and • other pricing factors, such as the geographical region in which the products are sold and expected discounts based on the customer size and type. We only include estimated amounts of variable consideration in the transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. We reduce transaction prices for estimated returns and other allowances that represent variable consideration under ASC 606, which we estimate based on historical return experience and other relevant factors, and record a corresponding refund liability as a component of accrued expenses and other current liabilities. Other forms of contingent revenue or variable consideration are infrequent. Revenue is recognized when control of these products and services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those services. We assess the timing of the transfer of products or services to the customer as compared to the timing of payments to determine whether a significant financing component exists. In accordance with the practical expedient in ASC 606-10-32-18, we do not assess the existence of a significant financing component when the difference between payment and transfer of deliverables is a year or less. If the difference in timing arises for reasons other than the provision of finance to either the customer or us, no financing component is deemed to exist. The primary purpose of our invoicing terms is to provide customers with simplified and predictable ways of purchasing our services, not to receive or provide financing from or to customers. We do not consider set-up fees nor other upfront fees paid by our customers to represent a financing component. Certain products are sold through distributors or resellers. Certain distributors and resellers have been granted right of return and selling incentives which are accounted for as variable consideration when estimating the amount of revenue to be recognized. Returns and credits are estimated at the contract inception and updated at the end of each reporting period as additional information becomes available. In accordance with the practical expedient in ASC 606-10-10-4, we apply a portfolio approach to estimate the variable consideration associated with this group of customers. Reimbursements for out-of-pocket costs generally include, but are not limited to, costs related to transportation, lodging and meals. Revenue from reimbursed out-of-pocket costs is accounted for as variable consideration. Shipping and handling activities are not considered a contract performance obligation. We record shipping and handling costs billed to customers as revenue with offsetting costs recorded as cost of revenue. Performance Obligations Hosting Hosting services, which allow our customers to use the hosted software over the contract period without taking possession of the software, are provided on a usage basis as consumed or on a fixed fee subscription basis. Our hosting contract terms generally range from one to five years. As each day of providing services is substantially the same and the customer simultaneously receives and consumes the benefits as access is provided, we have determined that our hosting services arrangements are a single performance obligation comprised of a series of distinct services. These services include variable consideration, which is typically a function of usage. We recognize revenue as each distinct service period is performed (i.e., recognized as incurred). Subscription basis revenue represents a single promise to stand-ready to provide access to our hosting services. Revenue is recognized over time on a ratable basis over the hosting contract term, which generally ranges from one to five years. Software Licenses On-premise software licenses sold with non-distinct professional services to customize and/or integrate the underlying software are accounted for as a combined performance obligation. Revenue from the combined performance obligation is recognized over time based upon the progress towards completion of the project, which is measured based on the labor hours already incurred to date as compared to the total estimated labor hours. Revenue from distinct on-premise software licenses, which do not require professional services to customize and/or integrate the software license, is recognized at the point in time when the software is made available to the customer and control is transferred. Revenue from software license sold on a royalty basis, where the license of intellectual property is the predominant item to which the royalty relates, is recognized in the period the usage occurs in accordance with the practical expedient in ASC 606-10-55-65(A). Maintenance and Support Our M&S contracts generally include telephone support and the right to receive unspecified upgrades and updates on a when-and-if available basis. M&S revenue is recognized over time on a ratable basis over the contract period because we transfer control evenly by providing a stand-ready service. Professional Services Revenue from distinct professional services, including training, is recognized over time based upon the progress towards completion of the project, which is measured based on the labor hours already incurred to date as compared to the total estimated labor hours. Hardware Hardware revenue is recognized at the point in time when control is transferred to the customer, which is typically upon delivery. Significant Judgments Determining whether products and services are considered distinct performance obligations that should be accounted for separately versus together may require significant judgment. Our license contracts often include professional services to customize and/or integrate the licenses into the customer’s environment. Judgment is required to determine whether the license is considered distinct and accounted for separately, or not distinct and accounted for together with professional services. Judgments are required to determine the SSP for each distinct performance obligation. When SSP is directly observable, we estimate SSP based upon the historical transaction prices, adjusted for geographic considerations, customer classes, and customer relationship profiles. In instances where SSP is not directly observable, we determine SSP using information that may include market conditions and other observable inputs. We may have more than one SSP for individual products and services due to the stratification of those products and services by customers and circumstances. In these instances, we may use information such as the size of the customer and geographic region in determining SSP. Determining SSP for performance obligations which we never sell separately also requires significant judgment. In estimating the SSP, we consider the likely price that would have resulted from established pricing practices had the deliverable been offered separately and the prices a customer would likely be willing to pay. From time to time, we may enter into arrangements with third party suppliers to resell products or services. In such cases, we evaluate whether we are the principal (i.e. report revenues on a gross basis) or agent (i.e. report revenues on a net basis). In doing so, we first evaluate whether we control the good or service before it is transferred to the customer. If we control the good or service before it is transferred to the customer, we are the principal; if not, we are the agent. Generally, we control a promised good or service before transferring that good or service to the customer and act as the principal to the transaction. Determining whether we control the good or service before it is transferred to the customer may require judgment. Disaggregated Revenue We disaggregate revenue from contracts with customers by reportable segment and products and services as this presentation depicts the timing, risks and uncertainty of our revenue streams, which is also in line with how we manage our businesses, assess performance, and determine management compensation. Our disaggregated revenue from continuing operations is as follows (dollars in thousands): For the Three Months Ended June 30, 2019 Hosting and professional services Product and licensing Maintenance and support Total Healthcare $ 142,502 $ 48,302 $ 37,062 $ 227,866 Enterprise 80,346 28,232 29,204 137,782 Automotive 28,042 43,625 93 71,760 Other 10,012 1,650 127 11,789 Total revenues $ 260,902 $ 121,809 $ 66,486 $ 449,197 For the Nine Months Ended June 30, 2019 Hosting and professional services Product and licensing Maintenance and support Total Healthcare $ 401,884 $ 183,039 $ 119,212 $ 704,135 Enterprise 235,562 63,285 83,829 382,676 Automotive 93,497 125,050 191 218,738 Other 40,658 5,975 252 46,885 Total revenues $ 771,601 $ 377,349 $ 203,484 $ 1,352,434 Hardware revenue comprised of approximately $6.4 million of total product and license revenue for the three months ended June 30, 2019 and $21.5 million for the nine months ended June 30, 2019 . Contract Acquisition Costs In conjunction with the adoption of ASC 606, we are required to capitalize certain contract acquisition costs. The capitalized costs primarily relate to paid commissions and other direct, incremental costs to acquire customer contracts. In accordance with the practical expedient in ASC 606-10-10-4, we apply a portfolio approach to estimate contract acquisition costs for groups of customer contracts. We elect to apply the practical expedient in ASC 340-40-25-4 and will expense contract acquisition costs as incurred where the expected period of benefit is one year or less. Sales commissions paid on renewal maintenance and support are not commensurate with sales commissions paid on the initial maintenance and support contract. Contract acquisition costs are deferred and amortized on a straight-line basis over the period of benefit, which we have estimated to be between one and five years. The period of benefit was determined based on an average customer contract term, expected contract renewals, changes in technology and our ability to retain customers including canceled contracts. Contract acquisition costs are classified as current or noncurrent assets based on when the expense will be recognized. The current and noncurrent portions of contract acquisition costs are included in Prepaid expenses and other current assets, and Other assets, respectively. As of June 30, 2019 , we had $18.6 million of current contract acquisition costs and $28.7 million of noncurrent contract acquisition costs. Commission expense is primarily included in Sales and marketing expense on the condensed consolidated statements of operations. We had amortization expense of $4.3 million related to contract acquisition costs for the three months ended June 30, 2019 and $11.5 million for the nine months ended June 30, 2019 . There was no impairment related to commission costs capitalized. Capitalized Contract Costs We capitalize incremental costs incurred to fulfill our contracts that (i) relate directly to the contract, (ii) are expected to generate resources that will be used to satisfy our performance obligation under the contract, and (iii) are expected to be recovered through revenue generated under the contract. Our capitalized costs consist primarily of setup costs, such as costs to standup, customize and develop applications for each customer, which are incurred to satisfy our stand-ready obligation to provide access to our connected offerings. These contract costs are expensed to cost of revenue as we satisfy our stand-ready obligation over the contract term which we estimate to be between one and five years. The contract term was determined based on an average customer contract term, expected contract renewals, changes in technology, and our ability to retain customers including canceled contracts. We classify capitalized contract costs as current or noncurrent based on the timing of when we expect to recognize the expense. The current and noncurrent portions of capitalized contract fulfillment costs are included in Prepaid expenses and other current assets, and Other assets, respectively. At June 30, 2019 , we had $7.0 million of short-term contract costs included with Prepaid expenses and other current assets and $95.2 million of long-term costs included within Other assets. Trade Accounts Receivable and Contract Balances We classify our right to consideration in exchange for deliverables as either a receivable or a contract asset. A receivable is a right to consideration that is unconditional (i.e. only the passage of time is required before payment is due). We present such receivables in Accounts receivable, net in our condensed consolidated balance sheets at their net estimated realizable value. We maintain an allowance for doubtful accounts to provide for the estimated amount of receivables that may not be collected. The allowance is based upon an assessment of customer creditworthiness, historical payment experience, the age of outstanding receivables and other applicable factors. Our contract assets and liabilities are reported in a net position on a contract-by-contract basis at the end of each reporting period. Contract assets include unbilled amounts from long-term contracts when revenue recognized exceeds the amount billed to the customer, and right to payment is not solely subject to the passage of time. The current and noncurrent portions of contract assets are included in Prepaid expenses and other current assets, and Other assets. As of June 30, 2019 , we had $68.2 million of current contract assets and $102.9 million of noncurrent contract assets. The table below shows significant changes in contract assets of continuing operations (dollars in thousands): Contract assets Balance as of October 1, 2018 $ 168,595 Revenues recognized but not billed 249,707 Amounts reclassified to accounts receivable (247,156 ) Balance at June 30, 2019 $ 171,146 Our contract liabilities, or Deferred revenue, consist of advance payments and billings in excess of revenues recognized. We classify Deferred revenue as current or noncurrent based on when we expect to recognize the revenues. At June 30, 2019 , we had $721.5 million of Deferred revenue. The table below shows significant changes in Deferred revenue of continuing operations (dollars in thousands): Deferred revenue Balance as of October 1, 2018 $ 693,272 Amounts bill but not recognized 712,594 Revenue recognized (684,383 ) Balance at June 30, 2019 $ 721,483 Remaining Performance Obligations The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied or partially unsatisfied at June 30, 2019 (dollars in thousands): Within One Year Two to Five Years Greater than Five Years Total Total revenue $ 754,280 $ 1,066,562 $ 185,857 $ 2,006,699

Summary of Significant Accoun_2

Summary of Significant Accounting Policies Recently Issued Accounting Pronouncements (Tables)	9 Months Ended
	Jun. 30, 2019
Recently Issued Accounting Pronouncements [Abstract]
ASC 606 Impact, Income Statement [Table Text Block]	For the Nine Months Ended June 30, 2019 As reported, ASC 606 Effect of Implementation As adjusted, ASC 605 Revenues: Hosting and professional services $ 771,601 $ 29,179 $ 800,780 Product and licensing 377,349 9,502 386,851 Maintenance and support 203,484 (20,146 ) 183,338 Total revenues $ 1,352,434 $ 18,535 $ 1,370,969 Cost of revenues: Hosting and professional services $ 471,204 $ 3,302 $ 474,506 Product and licensing 61,897 (12,941 ) 48,956 Maintenance and support 24,919 262 25,181 Amortization of intangible assets 27,700 — 27,700 Total cost of revenues $ 585,720 $ (9,377 ) $ 576,343 Sales and marketing $ 223,343 $ 1,023 $ 224,366 Provision for income taxes $ 7,814 $ 10,029 $ 17,843
ASC 606 Impact, Balance Sheet [Table Text Block]	As of June 30, 2019 As reported, ASC 606 Effect of Implementation As adjusted, ASC 605 Assets: Accounts receivable $ 313,599 $ 26,611 $ 340,210 Prepaid expenses and other current assets $ 193,795 $ (65,621 ) $ 128,174 Other assets $ 241,271 $ (121,462 ) $ 119,809 Liabilities: Deferred revenue, current $ 310,586 $ 36,191 $ 346,777 Deferred revenue, noncurrent $ 410,897 $ 19,882 $ 430,779 Deferred tax liabilities $ 45,456 $ (10,026 ) $ 35,430 Other long-term liabilities $ 97,858 $ (11,252 ) $ 86,606 Stockholders' Equity: Accumulated deficit $ (401,741 ) $ (195,117 ) $ (596,858 )
New Accounting Pronouncements, Policy [Policy Text Block]	Issued Accounting Standards Not Yet Adopted Leases In February 2016, the FASB issued ASU No. 2016-02, "Leases" ("ASC 842"). ASC 842 requires lessees to recognize on the balance sheet a right-of-use asset, representing its right to use the underlying asset for the lease term, and a lease liability for all leases with terms greater than 12 months. The guidance also requires qualitative and quantitative disclosures designed to assess the amount, timing, and uncertainty of cash flows arising from leases. The standard requires the use of a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply. ASC 842 is effective for us in the first quarter of fiscal year 2020, and early application is permitted. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases and ASU 2018-11, Leases Topic 842 Targeted Improvements, which provides an additional (and optional) transition method whereby the new lease standard is applied at the adoption date and recognized as an adjustment to retained earnings. We intend to adopt the guidance as of October 1, 2019 under the modified retrospective approach and elect the package of practical expedients under the transition guidance. We are currently evaluating the impact of ASC 842 and expect to recognize $110 million to $145 million of operating lease right-of-use assets and $130 million to $175 million operating lease obligations. We do not expect the adoption of the guidance to have a material impact on our consolidated statements of operations or consolidated statements of cash flows. Other Accounting Pronouncements In August 2018, the FASB issued ASU No. 2018-15, "Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract" ("ASU 2018-15"), which is effective for fiscal year beginning after December 15, 2019, and interim periods within those fiscal years, with early adoption permitted. The guidance requires that implementation costs related to a hosting arrangement that is a service contract be capitalized and amortized over the term of the hosting arrangement, starting when the module or component of the hosting arrangement is ready for its intended use. The guidance will be applied retrospectively to each period presented. We do not expect the implementation to have a material impact on our condensed consolidated financial statements. In January 2018, the FASB issued ASU No. 2018-02, "Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income ("AOCI"), which is effective for fiscal years beginning after December 15, 2018 and interim periods therein, with early adoption permitted. The guidance gives entities the option to reclassify to retained earnings the tax effects resulting from the Tax Cuts and Jobs Act ("TCJA") related to items in AOCI. The new guidance may be applied retrospectively to each period in which the effect of TCJA is recognized in the period of adoption. We do not expect the implementation to have a material impact on our condensed consolidated financial statements.

Revenue Recognition Disaggregat

Revenue Recognition Disaggregation of Revenue (Tables)	9 Months Ended
	Jun. 30, 2019
Disaggregation of Revenue [Abstract]
Disaggregation of Revenue [Table Text Block]	For the Three Months Ended June 30, 2019 Hosting and professional services Product and licensing Maintenance and support Total Healthcare $ 142,502 $ 48,302 $ 37,062 $ 227,866 Enterprise 80,346 28,232 29,204 137,782 Automotive 28,042 43,625 93 71,760 Other 10,012 1,650 127 11,789 Total revenues $ 260,902 $ 121,809 $ 66,486 $ 449,197 For the Nine Months Ended June 30, 2019 Hosting and professional services Product and licensing Maintenance and support Total Healthcare $ 401,884 $ 183,039 $ 119,212 $ 704,135 Enterprise 235,562 63,285 83,829 382,676 Automotive 93,497 125,050 191 218,738 Other 40,658 5,975 252 46,885 Total revenues $ 771,601 $ 377,349 $ 203,484 $ 1,352,434

Revenue Recognition Contract As

Revenue Recognition Contract Assets (Tables)	9 Months Ended
	Jun. 30, 2019
Contract Assets [Abstract]
Contract with Customer, Asset and Liability [Table Text Block]	The table below shows significant changes in Deferred revenue of continuing operations (dollars in thousands): Deferred revenue Balance as of October 1, 2018 $ 693,272 Amounts bill but not recognized 712,594 Revenue recognized (684,383 ) Balance at June 30, 2019 $ 721,483 Contract assets Balance as of October 1, 2018 $ 168,595 Revenues recognized but not billed 249,707 Amounts reclassified to accounts receivable (247,156 ) Balance at June 30, 2019 $ 171,146

Revenue Recognition Contract Li

Revenue Recognition Contract Liability (Tables)	9 Months Ended
	Jun. 30, 2019
Contract Liability [Abstract]
Contract with Customer, Asset and Liability [Table Text Block]	The table below shows significant changes in Deferred revenue of continuing operations (dollars in thousands): Deferred revenue Balance as of October 1, 2018 $ 693,272 Amounts bill but not recognized 712,594 Revenue recognized (684,383 ) Balance at June 30, 2019 $ 721,483 Contract assets Balance as of October 1, 2018 $ 168,595 Revenues recognized but not billed 249,707 Amounts reclassified to accounts receivable (247,156 ) Balance at June 30, 2019 $ 171,146

Revenue Recognition Remaining P

Revenue Recognition Remaining Performance Obligations (Tables)	9 Months Ended
	Jun. 30, 2019
Remaining Performance Obligations [Abstract]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]	Remaining Performance Obligations The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied or partially unsatisfied at June 30, 2019 (dollars in thousands): Within One Year Two to Five Years Greater than Five Years Total Total revenue $ 754,280 $ 1,066,562 $ 185,857 $ 2,006,699

Disposition of Business (Tables

Disposition of Business (Tables)	9 Months Ended
	Jun. 30, 2019
Results of Operations, Discontinued Operations [Abstract]
Disposal Groups, Including Discontinued Operations [Table Text Block]	The following table summarizes the results of the discontinued operations (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 (ASC 606) (ASC 605) (ASC 606) (ASC 605) Major line items constituting net income of Imaging: Revenue (a) $ — $ 53,438 $ 67,430 $ 155,890 Cost of revenue — 12,107 16,946 37,031 Research and development — 6,299 7,557 21,066 Sales and marketing (a) — 18,392 28,433 59,122 General and administrative — 987 1,997 3,211 Amortization of intangible assets — 4,261 5,219 12,757 Acquisition-related costs, net — — (386 ) — Restructuring and other charges, net — 3,895 13,251 5,194 Other — (200 ) — (38 ) Income (loss) from discontinued operations before income taxes (a) — 7,697 (5,587 ) 17,547 Provision (benefit) for income taxes — 1,014 (2,688 ) 2,013 Gain on disposition — — 102,371 — Net income from discontinued operations $ — $ 6,683 $ 99,472 $ 15,534 Supplemental information: Depreciation — 167 391 917 Amortization — 5,849 6,569 17,909 Stock compensation — 1,703 7,103 5,471 Capital expenditures for all periods presented were de minimis. (a) As more fully described in Note 2, as a result of the adoption of ASC 606 using the modified retrospective approach, Revenue for the six months ended March 31, 2019 reflected an increase of $2.4 million due to the upfront recognition of term licenses and the re-allocation of contract consideration to performance obligations based upon standalone selling prices; Sales and marketing expense for the six months ended March 31, 2019 reflected a decrease of $1.4 million due to the capitalization and amortization of commission expense; and the provision for income taxes for the three months ended March 31, 2019 reflected an increase in tax benefit of $1.6 million related to the tax effect of the ASC 606 adjustments. The following table summarizes the assets and liabilities included within discontinued operations (dollars in thousands): September 30, (ASC 605) Major classes of Imaging assets: Accounts receivable, net $ 30,959 Prepaid expenses and other current assets 3,443 Land, building and equipment, net 2,442 Goodwill 257,352 Intangible assets, net 99,507 Other assets 196 Total assets classified as held for sale $ 393,899 Major classes of Imaging liabilities: Accounts payable $ 3,604 Accrued expenses and other current liabilities 12,304 Deferred revenue 107,965 Other liabilities 2,658 Total liabilities classified as held for sale $ 126,531

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill and Intangible Assets	The changes in the carrying amount of Goodwill by reportable segment for the nine months ended June 30, 2019 are as follows (dollars in thousands): Goodwill Healthcare Enterprise Automotive Other Total Balance as of September 30, 2018 $ 1,430,325 $ 683,347 $ 1,119,947 $ 13,486 $ 3,247,105 Purchase accounting adjustments 113 — (172 ) — (59 ) Effect of foreign currency translation (1,354 ) (1,240 ) (1,532 ) (227 ) (4,353 ) Balance at June 30, 2019 $ 1,429,084 $ 682,107 $ 1,118,243 $ 13,259 $ 3,242,693

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets Intangible Assets (Tables)	9 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets [Table Text Block]	The changes in the carrying amount of Intangible assets for the nine months ended June 30, 2019 are as follows (dollars in thousands): Intangible Assets Balance as of September 30, 2018 $ 450,001 Acquisitions 1,488 Amortization (78,126 ) Effect of foreign currency translation (429 ) Balance at June 30, 2019 $ 372,934 Fiscal Year 2018 Interim Impairment Analysis Effective the second quarter of fiscal year 2018, our Automotive business, which was previously included within our Mobile segment, became a standalone operating segment. As a result of the reorganization, the original Mobile reporting unit was separated into three discrete lines of business comprised of Automotive, Dragon TV, and Devices. Dragon TV was merged within our Enterprise segment, and Devices was included within Other segment. We assigned $1,080.5 million , $12.0 million , and $36.0 million of Goodwill to Automotive, Dragon TV and Devices, respectively, based on their relative fair values as of March 31, 2018 , and assessed the assigned Goodwill for impairment by comparing each component’s fair value to its carrying amount. As a result, we recorded a Goodwill impairment charge of $35.1 million related to Devices for the second quarter of fiscal 2018. Also during the second quarter of fiscal year 2018, our Subscriber Revenue Services ("SRS") reporting unit, originally included within our Mobile operating segment, recorded significantly lower revenue and profitability due to recent market disruptions in certain markets that we serve. We concluded that these financial results coupled with the rapid market shifts being experienced in the industry were factors that represented impairment indicators, triggering a review of Goodwill and indefinite-lived intangible assets for impairment during the second quarter of fiscal year 2018. Based on the result of the impairment assessment, the carrying value of SRS exceeded its fair value by $94.3 million . In addition, we recorded an $8.5 million deferred tax benefit related to SRS’s Goodwill, which is amortized over time for tax purposes, and therefore increased the impairment charge by the same amount. As a result, we recorded a Goodwill impairment charge of $102.8 million related to SRS for the second quarter of fiscal year 2018. After the impairment charge, Goodwill assigned to SRS was $17.8 million as of March 31, 2018. The assessment did not result in any impairment charge of Other intangible assets. Wind-down of Devices and Mobile Operator Services and Annual Goodwill Impairment Analysis During the fourth quarter of fiscal year 2018, in connection with our strategic business review announced in our earnings release issued on May 9, 2018, we restructured our SRS business by separating the voicemail transcription services business ("Voice-to-Text"), which will continue to operate as part of the Other Segment, and commenced a wind-down of our SRS Mobile Operator Services in India and Brazil, and our Devices businesses. The SRS business provides value-added services to mobile operators in India and Brazil ("Mobile Operator Services"). As a result, we revised our multi-year operating plans of Mobile Operator Services and Devices businesses, as part of our fiscal year 2019 budgeting process, to reflect a significant decline in revenue and operating income. The wind-down decision has resulted in significantly lower estimated future cash flows over a considerably shorter time horizon, which triggered a review of Goodwill and long-lived asset groups for impairment. As a result of the impairment review, we recorded an additional $15.0 million impairment charge for Devices for the fourth quarter of fiscal year 2018, including $7.6 million related to acquired trade names and customer relationships, $0.8 million related to acquired technology assets, $6.2 million related to fixed assets, and $0.4 million related to its remaining goodwill; we also recorded $25.1 million impairment charge for our Mobile Operator Services business for the fourth quarter of fiscal year 2018, including $12.9 million related to acquired trade names and customer relationships, $7.9 million related to acquired technology assets, $0.9 million related to fixed assets, and $3.4 million related to Goodwill.

Financial Instruments and Hed_2

Financial Instruments and Hedging Activities (Tables)	9 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Quantitative Summary of Fair Value of Derivative Instruments	A summary of the derivative instruments is as follows (dollars in thousands): Derivatives Not Designated as Hedges Balance Sheet Classification Fair Value June 30, September 30, Foreign currency forward contracts Prepaid expenses and other current assets $ 100 $ 143 Foreign currency forward contracts Accrued expenses and other current liabilities (109 ) (1,192 )
Summarized Activity of Derivative Instruments	A summary of income (loss) related to the derivative instruments for the three and nine months ended June 30, 2019 and 2018 is as follows (dollars in thousands): Income Statement Classification Three Months Ended June 30, Nine Months Ended June 30, Derivatives Not Designated as Hedges Income (Loss) Recognized 2019 2018 2019 2018 Foreign currency forward contracts Other income (expense), net $ (799 ) $ (1,597 ) $ (359 ) $ (2,381 )

Fair Value Measures (Tables)

Fair Value Measures (Tables)	9 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	Assets and liabilities measured at fair value on a recurring basis at June 30, 2019 and September 30, 2018 consisted of the following (dollars in thousands): June 30, 2019 Level 1 Level 2 Level 3 Total Assets: Money market funds (a) $ 386,071 $ — $ — $ 386,071 Time deposits (b) — 91,147 — 91,147 Commercial paper, $39,113 at cost (b) — 39,409 — 39,409 Corporate notes and bonds, $42,292 at cost (b) — 42,358 — 42,358 Foreign currency exchange contracts (b) — 100 — 100 Total assets at fair value $ 386,071 $ 173,014 $ — $ 559,085 Liabilities: Foreign currency exchange contracts (b) $ — $ (109 ) $ — $ (109 ) Contingent acquisition payments (c) — — (889 ) (889 ) Total liabilities at fair value $ — $ (109 ) $ (889 ) $ (998 ) September 30, 2018 Level 1 Level 2 Level 3 Total Assets: Money market funds (a) $ 200,004 $ — $ — $ 200,004 Time deposits (b) — 88,158 — 88,158 Commercial paper, $27,194 at cost (b) — 27,363 — 27,363 Corporate notes and bonds, $57,563 at cost (b) — 57,417 — 57,417 Foreign currency exchange contracts (b) — 143 — 143 Total assets at fair value $ 200,004 $ 173,081 $ — $ 373,085 Liabilities: Foreign currency exchange contracts (b) $ — $ (1,192 ) $ — $ (1,192 ) Contingent acquisition payments (c) — — (4,000 ) (4,000 ) Total liabilities at fair value $ — $ (1,192 ) $ (4,000 ) $ (5,192 )
Changes in Fair Value of Contingent Earn-Out Liabilities	The following table provides a summary of changes in the aggregate fair value of the contingent acquisition payments for all periods presented (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Balance at beginning of period $ 1,450 $ 11,752 $ 4,000 $ 8,648 Earn-out liabilities established at time of acquisition — 1,500 — 2,000 Payments and foreign currency translation — (4,557 ) (2,550 ) (4,652 ) Adjustments to fair value included in acquisition-related costs, net (561 ) (660 ) (561 ) 2,039 Balance at end of period $ 889 $ 8,035 $ 889 $ 8,035

Accrued Expenses and Other Cu_2

Accrued Expenses and Other Current Liabilities (Tables)	9 Months Ended
	Jun. 30, 2019
Payables and Accruals [Abstract]
Accrued Expenses and Other Current Liabilities	Accrued expenses and other current liabilities consisted of the following (dollars in thousands): June 30, September 30, Compensation $ 116,289 $ 174,984 Cost of revenue related liabilities 52,621 30,432 Consulting and professional fees 27,355 21,220 Accrued interest payable 12,681 21,326 Sales and other taxes payable 6,459 5,983 Facility-related liabilities 3,281 4,621 Sales and marketing incentives 2,508 1,889 Other 23,818 8,884 Total $ 245,012 $ 269,339

Restructuring and Other Charg_2

Restructuring and Other Charges, net (Tables)	9 Months Ended
	Jun. 30, 2019
Restructuring and Related Activities [Abstract]
Accrual Activity Relating to Restructuring and Other Charges	The following table sets forth accrual activities relating to restructuring reserves for the nine months ended June 30, 2019 (dollars in thousands): Personnel Facilities Total Balance at September 30, 2018 $ 9,690 $ 6,503 $ 16,193 Restructuring charges, net 19,104 2,553 21,657 Non-cash adjustment (307 ) (285 ) (592 ) Cash payments (23,429 ) (6,280 ) (29,709 ) Balance at June 30, 2019 $ 5,058 $ 2,491 $ 7,549
Restructuring and Other Charges, Net by Segment	Nine Months Ended June 30, 2019 2018 Personnel Facilities Total Restructuring Other Charges Total Personnel Facilities Total Restructuring Other Charges Total Healthcare $ 4,672 $ 142 $ 4,814 $ — $ 4,814 $ 3,678 $ 25 $ 3,703 $ — $ 3,703 Enterprise 5,086 13 5,099 — 5,099 3,939 2,170 6,109 — 6,109 Automotive 5,224 1,707 6,931 27,291 34,222 2,233 — 2,233 — 2,233 Other 1,443 15 1,458 3,306 4,764 1,498 624 2,122 — 2,122 Corporate 2,679 676 3,355 8,414 11,769 2,339 951 3,290 10,335 13,625 Total $ 19,104 $ 2,553 $ 21,657 $ 39,011 $ 60,668 $ 13,687 $ 3,770 $ 17,457 $ 10,335 $ 27,792

Debt and Credit Facilities (Tab

Debt and Credit Facilities (Tables)	9 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Schedule of Maturities of Long-term Debt [Table Text Block]	The following table summarizes the maturities of our borrowing obligations as of June 30, 2019 (dollars in thousands): Fiscal Year Convertible Debentures (1) Senior Notes Total 2019 $ — $ — $ — 2020 — — — 2021 — — — 2022 310,463 — 310,463 2023 676,488 — 676,488 Thereafter 350,000 800,000 1,150,000 Total before unamortized discount 1,336,951 800,000 2,136,951 Less: unamortized discount and issuance costs (206,457 ) (6,778 ) (213,235 ) Total long-term debt $ 1,130,494 $ 793,222 $ 1,923,716 (1) Pursuant to the terms of each convertible instrument, holders have the right to redeem the debt on specific dates prior to maturity. The repayment schedule above assumes that payment is due on the next redemption date after June 30, 2019 .
Borrowing Obligations and Applicable Margin for Borrowings	As of June 30, 2019 and September 30, 2018 , we had the following borrowing obligations (dollars in thousands): June 30, September 30, 5.625% Senior Notes due 2026, net of deferred issuance costs of $4.6 million and $5.1 million, respectively. Effective interest rate 5.625%. $ 495,364 $ 494,915 5.375% Senior Notes due 2020, net of deferred issuance costs of $1.2 million. Effective interest rate 5.375%. — 298,759 6.000% Senior Notes due 2024, net of deferred issuance costs of $1.6 million and $1.8 million, respectively. Effective interest rate 6.000%. 298,452 298,220 1.000% Convertible Debentures due 2035, net of unamortized discount of $98.1 million and $116.9 million, respectively, and deferred issuance costs of $4.6 million and $5.6 million, respectively. Effective interest rate 5.622%. 573,840 553,973 2.750% Convertible Debentures due 2031. Effective interest rate 7.432%. 46,568 46,568 1.250% Convertible Debentures due 2025, net of unamortized discount of $74.4 million and $82.4 million, respectively, and deferred issuance costs of $3.3 million and $3.7 million, respectively. Effective interest rate 5.578%. 272,350 263,863 1.500% Convertible Debentures due 2035, net of unamortized discount of $25.3 million and $32.8 million, respectively, and deferred issuance costs of $0.9 million and $1.1 million, respectively. Effective interest rate 5.394%. 237,736 229,906 Deferred issuance costs related to our Revolving Credit Facility (594 ) (843 ) Total debt 1,923,716 2,185,361 Less: current portion — — Total long-term debt $ 1,923,716 $ 2,185,361

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	9 Months Ended
	Jun. 30, 2019
Net Income (Loss) per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The following table sets forth the computation for basic and diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Numerator: Net income (loss) from continuing operations $ 9,259 $ (20,720 ) $ 6,209 $ (140,396 ) Net income from discontinued operations — 6,683 99,472 15,534 Net income (loss) $ 9,259 $ (14,037 ) $ 105,681 $ (124,862 ) Denominator: Weighted average common shares outstanding — basic 285,942 292,663 285,064 292,703 Dilutive effect of employee stock compensation plans 2,706 — 3,089 — Weighted average common shares outstanding — diluted 288,648 292,663 288,153 292,703 Net income (loss) per common share - basic: Continuing operations $ 0.03 $ (0.07 ) $ 0.02 $ (0.48 ) Discontinued operations — 0.02 0.35 0.05 Total net income (loss) per basic common share $ 0.03 $ (0.05 ) $ 0.37 $ (0.43 ) Net income (loss) per common share - diluted: Continuing operations $ 0.03 $ (0.07 ) $ 0.02 $ (0.48 ) Discontinued operations — 0.02 0.35 0.05 Total net income (loss) per diluted common share $ 0.03 $ (0.05 ) $ 0.37 $ (0.43 ) Anti-dilutive equity instruments excluded from the calculation 527 4,408 673 3,838 Contingently issuable awards excluded from the calculation (a) 2,555 1,975 2,542 1,801

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Jun. 30, 2019
Share-based Compensation [Abstract]
Stock Based Compensation Included in Consolidated Statements of Operations	The amounts included in the condensed consolidated statements of operations related to stock-based compensation are as follows (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Cost of hosting and professional services $ 7,280 $ 6,790 $ 20,093 $ 20,474 Cost of product and licensing 197 114 593 492 Cost of maintenance and support 583 551 730 1,770 Research and development 10,262 8,034 26,912 24,798 Sales and marketing 7,593 8,461 24,488 25,997 General and administrative 10,017 9,549 27,327 27,935 Total $ 35,932 $ 33,499 $ 100,143 $ 101,466
Summary of Stock Options Activity	The table below summarizes activities related to stock options for the nine months ended June 30, 2019 : Number of Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value (a) Outstanding at September 30, 2018 19,144 $ 17.31 Exercised (1,500 ) $ 12.79 Expired (4,528 ) $ 17.89 Outstanding at June 30, 2019 13,116 $ 17.63 2.7 years $ 0.02 million Exercisable at June 30, 2019 13,116 $ 17.63 2.7 years $ 0.02 million Exercisable at June 30, 2018 20,504 $ 17.16 2.5 years $ 0.10 million (a) The aggregate intrinsic value in this table represents any excess of the closing market price of our common stock as of June 30, 2019 ( $15.97 ) over the exercise price of the underlying options.
Summary of Activity Relating to Restricted Units and Restricted Stock Awards	he table below summarizes activities relating to restricted units for the nine months ended June 30, 2019 : Number of Shares Underlying Restricted Units — Contingent Awards Number of Shares Underlying Restricted Units — Time-Based Awards Outstanding at September 30, 2018 3,039,568 6,872,087 Granted 1,342,836 6,214,882 Earned/released (1,386,735 ) (5,220,312 ) Modification (a) (296,759 ) 296,759 Forfeited (688,835 ) (1,159,444 ) Outstanding at June 30, 2019 2,010,075 7,003,972 Weighted average remaining recognition period of outstanding restricted units 1.6 years 1.6 years Unrecognized stock-based compensation expense of outstanding restricted units $27.0 million $62.2 million Aggregate intrinsic value of outstanding restricted units (b) $32.1 million $111.9 million (a) 296,759 shares of contingently issuable awards were modified to time-based awards with only service conditions in December 2018. (b) The aggregate intrinsic value in this table represents any excess of the closing market price of our common stock as of June 30, 2019 ( $15.97 ) over the purchase price of the underlying restricted units.
Summary of Weighted-Average Grant-Date Fair Value and Intrinsic Value of Restricted Units and Restricted Stock Awards Vested	A summary of the weighted-average grant-date fair value of restricted units granted, and the aggregate intrinsic value of restricted units vested during the periods noted is as follows: Nine Months Ended June 30, 2019 2018 Weighted-average grant-date fair value per share $ 17.30 $ 15.76 Total intrinsic value of shares vested (in millions) $ 106.1 $ 115.3

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Components of Benefit from Income Taxes	The components of income (loss) from continuing operations before income taxes are as follows (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Domestic $ (4,912 ) $ (42,438 ) $ (20,475 ) $ (162,305 ) Foreign 21,957 31,277 34,498 (45,508 ) Income (loss) before income taxes $ 17,045 $ (11,161 ) $ 14,023 $ (207,813 ) The components of provision (benefit) for income taxes are as follows (dollars in thousands): Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 Domestic $ (3,086 ) $ (339 ) $ (8,805 ) $ (76,130 ) Foreign 10,872 9,898 16,619 8,713 Provision (benefit) for income taxes $ 7,786 $ 9,559 $ 7,814 $ (67,417 ) Effective tax rate 45.7 % (85.6 )% 55.7 % 32.4 %

Segment and Geographic Inform_2

Segment and Geographic Information and Significant Customers (Tables)	9 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment Results Along with Reconciliation of Segment Profit to Income Before Income Taxes	The following table presents segment results along with a reconciliation of segment profit to Income (loss) before income taxes (dollars in thousands): Three Months Ended Nine Months Ended June 30, June 30, 2019 2018 2019 2018 Segment revenues : (ASC 606) (ASC 605) (ASC 606) (ASC 605) Healthcare $ 228,384 $ 236,194 $ 704,911 $ 742,969 Enterprise 137,888 119,596 383,217 352,862 Automotive 72,982 73,754 222,406 204,202 Other 11,790 22,241 46,885 74,328 Total segment revenues 451,044 451,785 1,357,419 1,374,361 Less: acquisition-related revenues adjustments (1,847 ) (2,336 ) (4,985 ) (11,495 ) Total revenues 449,197 449,449 1,352,434 1,362,866 Segment profit: Healthcare 79,978 76,504 247,036 238,966 Enterprise 40,820 32,513 109,015 95,078 Automotive 30,662 27,963 76,627 79,708 Other 4,378 2,967 15,819 12,298 Total segment profit 155,838 139,947 448,497 426,050 Corporate expenses and other, net (36,904 ) (41,135 ) (104,963 ) (148,214 ) Acquisition-related revenues (1,849 ) (2,336 ) (4,985 ) (11,495 ) Stock-based compensation (35,932 ) (33,499 ) (100,143 ) (101,466 ) Amortization of intangible assets (25,391 ) (32,028 ) (78,126 ) (95,838 ) Acquisition-related costs, net (1,154 ) (4,916 ) (6,223 ) (12,837 ) Restructuring and other charges, net (16,118 ) (5,342 ) (60,668 ) (27,792 ) Impairment of goodwill — — — (137,907 ) Other expenses, net (21,445 ) (31,852 ) (79,366 ) (98,314 ) Income (loss) before income taxes $ 17,045 $ (11,161 ) $ 14,023 $ (207,813 )
Classification of Revenue By Major Geographic Areas	Revenues, classified by the major geographic areas in which our customers are located, were as follows (dollars in thousands): Three Months Ended Nine Months Ended June 30, June 30, 2019 2018 2019 2018 (ASC 606) (ASC 605) (ASC 606) (ASC 605) United States $ 337,411 $ 333,809 $ 1,019,945 $ 1,014,295 International 111,786 115,640 332,489 348,571 Total revenues $ 449,197 $ 449,449 $ 1,352,434 $ 1,362,866

Supplemental Cash Flow (Tables)

Supplemental Cash Flow (Tables)	9 Months Ended
	Jun. 30, 2019
Supplemental Cash Flow [Abstract]
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	Cash paid for Interest and Income Taxes: Three Months Ended June 30, Nine Months Ended June 30, 2019 2018 2019 2018 (Dollars in thousands) Interest paid $ 22,657 $ 22,536 $ 63,411 $ 71,244 Income taxes paid $ 7,058 $ 2,530 $ 14,272 $ 9,895

Summary of Significant Accoun_3

Summary of Significant Accounting Policies Recently Adopted Accounting Standards (Details) - USD ($) $ in Thousands	Oct. 01, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Oct. 01, 2019	Sep. 30, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts Receivable, Net, Current		$ 313,599		$ 313,599			$ 347,873
Prepaid expenses and other current assets		193,795		193,795			94,814
Other assets		241,271		241,271			141,761
Deferred Revenue, Current		310,586		310,586			330,689
Deferred revenue, net of current portion		410,897		410,897			434,316
Deferred tax liabilities		45,456		45,456			49,931
Other liabilities		97,858		97,858			93,593
Hosting and professional services		260,902	$ 253,610	771,601	$ 785,038
Product and licensing		121,809	132,762	377,349	387,956
Maintenance and support		66,486	63,077	203,484	189,872
Revenues		449,197	449,449	1,352,434	1,362,866
Hosting Cost		154,397	165,578	471,204	517,362
Product and licensing		19,207	13,969	61,897	41,867
Cost of Sales, Maintenance and Support		8,192	9,612	24,919	28,616
Amortization of intangible assets		8,895	12,172	27,700	38,744
Cost of Goods and Services Sold		190,691	201,331	585,720	626,589
Sales and marketing		72,229	77,820	223,343	233,237
Provision (benefit) for income taxes		7,786	$ 9,559	7,814	$ (67,417)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	$ 233,000
Accumulated deficit		(401,741)		(401,741)			$ (740,837)
Deferred Revenue [Domain]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	70,000
Other Assets [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	180,000
Accounts Receivable [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	30,000			26,611
Deferred Project Costs [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	30,000
Deferred Tax Asset [Domain]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 20,000			10,026
Prepaid Expenses and Other Current Assets [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				(65,621)
Other Assets [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				(121,462)
Deferred revenue, current [Domain]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				36,191
Deferred Revenue [Domain]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				19,882
Other Noncurrent Liabilities [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				(11,252)
Retained Earnings [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				(195,117)
ASC 605
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts Receivable, Net, Current		340,210		340,210
Prepaid expenses and other current assets		128,174		128,174
Other assets		119,809		119,809
Deferred Revenue, Current		346,777		346,777
Deferred revenue, net of current portion		430,779		430,779
Deferred tax liabilities		35,430		35,430
Other liabilities		86,606		86,606
Hosting and professional services		268,845		800,780
Product and licensing		127,388		386,851
Maintenance and support		62,099		183,338
Revenues		458,332		1,370,969
Hosting Cost		160,952		474,506
Product and licensing		17,711		48,956
Cost of Sales, Maintenance and Support		8,407		25,181
Cost of Goods and Services Sold		195,965		576,343
Sales and marketing		73,832		224,366
Provision (benefit) for income taxes		7,136		17,843
Accumulated deficit		(596,858)		(596,858)
Cost of professional services and hosting
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		7,943		29,179
Cost of product and licensing
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		5,579		9,502
Cost of maintenance and support
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		(4,387)		(20,146)
Sales Revenue, Net [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		9,135		18,535
Cost, professional services and hosting [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		6,555		3,302
Cost, product and licensing [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		(1,496)		(12,941)
Cost, maintenance and support [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		215		262
Cost, amortization [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		0		0
Cost of Sales [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		5,274		(9,377)
Sales and marketing
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		1,603		1,023
Provision (benefit) for income taxes [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		$ (650)		$ 10,029
Minimum | Scenario, Forecast [Member] | Deferred Revenue [Domain]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets						$ 130,000
Minimum | Scenario, Forecast [Member] | Assets [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets						110,000
Maximum | Scenario, Forecast [Member] | Deferred Revenue [Domain]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets						175,000
Maximum | Scenario, Forecast [Member] | Assets [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets						$ 145,000

Revenue Recognition Disaggreg_2

Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Hardware revenue	$ 6,400		$ 21,500
Document Period End Date			Jun. 30, 2019
Hosting Revenue	260,902	$ 253,610	$ 771,601	$ 785,038
Product and licensing	121,809	132,762	377,349	387,956
Revenue, Maintenance and Support	66,486	63,077	203,484	189,872
Revenues	449,197	$ 449,449	1,352,434	$ 1,362,866
Health Care Segment [Member]
Disaggregation of Revenue [Line Items]
Hosting Revenue	142,502		401,884
Product and licensing	48,302		183,039
Revenue, Maintenance and Support	37,062		119,212
Revenues	227,866		704,135
Enterprise Segment [Member]
Disaggregation of Revenue [Line Items]
Hosting Revenue	80,346		235,562
Product and licensing	28,232		63,285
Revenue, Maintenance and Support	29,204		83,829
Revenues	137,782		382,676
Automotive Segment [Member]
Disaggregation of Revenue [Line Items]
Hosting Revenue	28,042		93,497
Product and licensing	43,625		125,050
Revenue, Maintenance and Support	93		191
Revenues	71,760		218,738
Other Segments [Member]
Disaggregation of Revenue [Line Items]
Hosting Revenue	10,012		40,658
Product and licensing	1,650		5,975
Revenue, Maintenance and Support	127		252
Revenues	$ 11,789		$ 46,885

Revenue Recognition Contract _2

Revenue Recognition Contract Assets (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2019USD ($)
Contract Assets [Abstract]
Revenues recognized but not billed	$ 249,707
Amounts reclassified to accounts receivable	(247,156)
Balance at June 30, 2019	$ 171,146

Revenue Recognition Contract _3

Revenue Recognition Contract Liability (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2019USD ($)
Contract Liability [Abstract]
Amounts bill but not recognized	$ 712,594
Revenue recognized	(684,383)
Balance at June 30, 2019	$ 721,483

Revenue Recognition Remaining_2

Revenue Recognition Remaining Performance Obligations (Details) $ in Thousands	Jun. 30, 2019USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 2,006,699
Within One Year [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	754,280
Two to Five Years [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	1,066,562
Greater than Five Years [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 185,857

Revenue Recognition Revenue R_2

Revenue Recognition Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Oct. 01, 2018
Revenue Recognition [Abstract]
Contract with Customer, Asset, Net, Current	$ 68,200	$ 68,200
Deferred Costs, Current	7,000	7,000
Contract with Customer, Liability	721,483	721,483	$ 693,272
Capitalized Contract Cost, Net	18,600	18,600
Hardware revenue	6,400	21,500
Capitalized Contract Cost, Net, Noncurrent	28,700	28,700
Capitalized Contract Cost, Amortization	4,300	11,500
Deferred Costs, Noncurrent	95,200	95,200
Contract with Customer, Asset, Net, Noncurrent	$ 102,900	$ 102,900

Disposition of Business (Detail

Disposition of Business (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2019	Jun. 30, 2019	Jun. 30, 2018	Feb. 01, 2019	Nov. 07, 2018	Sep. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net									$ 30,959
Provision for Income Taxes, Discontinued Operations	$ 0		$ 1,014		$ (2,688)	$ 2,013
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0		6,683		99,472	15,534
Depreciation, Discontinued Operations	0		167		391	917
Disposal Group, Including Discontinued Operation, Depreciation and Amortization	0		5,849		6,569	17,909
Stock Compensation Expense, Discontinued Operations	0		1,703		7,103	5,471
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets									3,443
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment									2,442
Disposal Group, Including Discontinued Operation, Goodwill									257,352
Disposal Group, Including Discontinued Operation, Intangible Assets									99,507
Disposal Group, Including Discontinued Operation, Other Assets									196
Disposal Group, Including Discontinued Operation, Assets									393,899
Disposal Group, Including Discontinued Operation, Accounts Payable									3,604
Disposal Group, Including Discontinued Operation, Accrued Liabilities									12,304
Disposal Group, Including Discontinued Operation, Deferred Revenue									107,965
Disposal Group, Including Discontinued Operation, Revenue	0		53,438		67,430	155,890
Disposal Group, Including Discontinued Operation, Consideration							$ 404,000	$ 400,000
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	0		12,107		16,946	37,031
Disposal Group, Including Discontinued Operation, Operating Income (Loss)	0		7,697		(5,587)	17,547
Disposal Group, Including Discontinued Operation, Other Liabilities									2,658
Disposal Group, Including Discontinued Operation, Liabilities									$ 126,531
Gain (Loss) on Disposition of Business	0	$ 102,400	0		102,371	0
Sales Revenue, Net [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	9,135				18,535
Restructuring Charges [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Operating Expense	0		3,895		13,251	5,194
Other Operating Income	0		(200)		0	(38)
Acquisition-related Costs [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Operating Expense	0		0		(386)	0
Other Expense [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Operating Expense	0		4,261		5,219	12,757
General and Administrative Expense
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Operating Expense	0		987		1,997	3,211
Sales and marketing
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	1,603				1,023
Disposal Group, Including Discontinued Operation, Operating Expense	0		18,392		28,433	59,122
Research and Development
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Operating Expense	0		$ 6,299		7,557	$ 21,066
Provision (benefit) for income taxes [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ (650)				$ 10,029
Discontinued Operations, Disposed of by Sale [Member] | Sales Revenue, Net [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				$ 2,400
Discontinued Operations, Disposed of by Sale [Member] | Sales and marketing
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				1,400
Discontinued Operations, Disposed of by Sale [Member] | Provision (benefit) for income taxes [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification				$ 1,600

Business Acquisitions (Summary

Business Acquisitions (Summary of Preliminary Allocation of Purchase Consideration) (Detail) $ in Millions	9 Months Ended
	Jun. 30, 2018USD ($)
Business Combinations [Abstract]
Business Combination, Consideration Transferred	$ 113.1
Business Combination, Contingent Consideration, Liability	2
Goodwill, Acquired During Period	65.1
Finite-lived Intangible Assets Acquired	$ 60.8
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years

Business Acquisitions (Componen

Business Acquisitions (Components of Acquisition-Related Costs, Net) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Acquisition [Line Items]
Document Period End Date			Jun. 30, 2019
Transition and integration costs	$ 1,531	$ 5,370	$ 6,623	$ 12,799
Business Combination Professional Service Fees	950	1,254
Professional service fees			1,406	2,705
Business Combination Acquisition Related Adjustments	(1,327)	(1,708)
Acquisition-related adjustments			(1,806)	(2,667)
Total	$ 1,154	$ 4,916	$ 6,223	$ 12,837

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets Goodwill, Changes in Carrying values (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Goodwill [Line Items]
Balance as of September 30, 2018	$ 3,247,105
Acquisitions		$ 65,100
Purchase accounting adjustments	(59)
Effect of foreign currency translation	(4,353)
Balance at June 30, 2019	3,242,693
Healthcare
Goodwill [Line Items]
Balance as of September 30, 2018	1,430,325
Purchase accounting adjustments	113
Effect of foreign currency translation	(1,354)
Balance at June 30, 2019	1,429,084
Enterprise
Goodwill [Line Items]
Balance as of September 30, 2018	683,347
Purchase accounting adjustments	0
Effect of foreign currency translation	(1,240)
Balance at June 30, 2019	682,107
Automotive
Goodwill [Line Items]
Balance as of September 30, 2018	1,119,947
Purchase accounting adjustments	(172)
Effect of foreign currency translation	(1,532)
Balance at June 30, 2019	1,118,243
Other
Goodwill [Line Items]
Balance as of September 30, 2018	13,486
Purchase accounting adjustments	0
Effect of foreign currency translation	(227)
Balance at June 30, 2019	$ 13,259

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Balance as of September 30, 2018	$ 450,001
Acquisitions		$ 60,800
Amortization	(78,126)
Effect of foreign currency translation	(429)
Balance at June 30, 2019	372,934
Other Acquisitions [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisitions	$ 1,488

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets Goodwill Impairment Assessment (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended
	Jun. 30, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Goodwill	$ 3,242,693	$ 3,247,105			$ 3,242,693
Goodwill and Intangible Asset Impairment	0		$ 0		0	$ 137,907
Other Asset Impairment Charges					0	$ 1,780
Automotive Segment [Member]
Goodwill	$ 1,118,243	1,119,947		$ 1,080,500	$ 1,118,243
Dragon TV [Member]
Goodwill				12,000
Mobile Reporting Unit [Member]
Goodwill				36,000
Goodwill, Impairment Loss		400		35,100
Goodwill and Intangible Asset Impairment		15,000
Other Asset Impairment Charges		6,200
SRS [Member]
Goodwill				17,800
Goodwill, Impairment Loss		3,400		102,800
Fair Value, Net Asset (Liability)				94,300
Goodwill, Subsequent Recognition of Deferred Tax Asset				$ 8,500
Goodwill and Intangible Asset Impairment		25,100
Other Asset Impairment Charges		900
Customer Relationships [Member] | Mobile Reporting Unit [Member]
Impairment of Intangible Assets (Excluding Goodwill)		7,600
Customer Relationships [Member] | SRS [Member]
Impairment of Intangible Assets (Excluding Goodwill)		12,900
Patented Technology [Member] | Mobile Reporting Unit [Member]
Impairment of Intangible Assets (Excluding Goodwill)		800
Patented Technology [Member] | SRS [Member]
Impairment of Intangible Assets (Excluding Goodwill)		$ 7,900

Financial Instruments and Hed_3

Financial Instruments and Hedging Activities (Additional Information) (Detail) - Derivatives Not Designated as Hedges - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2019	Sep. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Derivative, Notional Amount	$ 153.3	$ 117.1
Maximum
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Term of foreign currency forward contracts	90 days

Financial Instruments and Hed_4

Financial Instruments and Hedging Activities (Quantitative Summary of Fair Value of Derivative Instruments) (Detail) - Foreign currency forward contracts - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Prepaid Expenses and Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	$ 100	$ 143
Accrued Expenses And Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	$ 109	$ 1,192

Financial Instruments and Hed_5

Financial Instruments and Hedging Activities (Summarized Activity of Derivative Instruments) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Document Period End Date			Jun. 30, 2019
Derivatives Not Designated as Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	$ 153,300		$ 153,300		$ 117,100
Derivatives Not Designated as Hedges | Foreign currency forward contracts | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	$ (799)	$ (1,597)	$ (359)	$ (2,381)

Fair Value Measures (Assets and

Fair Value Measures (Assets and Liabilities Measured at Fair Value on Recurring Basis) (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Sep. 30, 2018	Jun. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale Securities, Weighted Average Maturity	6 months	7 months 9 days
Document Period End Date			Jun. 30, 2019
Fair Value, Measurements, Recurring
Assets:
Money market funds	$ 386,071,000	$ 200,004,000	$ 386,071,000
Bank Time Deposits, Fair Value Disclosure	91,147,000	88,158,000	91,147,000
Commercial Paper, Fair value	39,409,000	27,363,000	39,409,000
Corporate notes and bonds, Fair Value	42,358,000	57,417,000	42,358,000
Foreign Currency Contract, Asset, Fair Value Disclosure	100,000	143,000	100,000
Total assets at fair value	559,085,000	373,085,000	559,085,000
Liabilities:
Contingent earn-out	(889,000)	(4,000,000)	(889,000)
Foreign Currency Contracts, Liability, Fair Value Disclosure	(109,000)	(1,192,000)	(109,000)
Total liabilities at fair value	(998,000)	(5,192,000)	(998,000)
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
Assets:
Money market funds	386,071,000	200,004,000	386,071,000
Bank Time Deposits, Fair Value Disclosure	0	0	0
Commercial Paper, Fair value	0	0	0
Corporate notes and bonds, Fair Value	0	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0	0
Total assets at fair value	386,071,000	200,004,000	386,071,000
Liabilities:
Contingent earn-out	0	0	0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0	0
Total liabilities at fair value	0	0	0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Assets:
Money market funds	0	0	0
Bank Time Deposits, Fair Value Disclosure	91,147,000	88,158,000	91,147,000
Commercial Paper, Fair value	39,409,000	27,363,000	39,409,000
Corporate notes and bonds, Fair Value	42,358,000	57,417,000	42,358,000
Foreign Currency Contract, Asset, Fair Value Disclosure	100,000	143,000	100,000
Total assets at fair value	173,014,000	173,081,000	173,014,000
Liabilities:
Contingent earn-out	0	0	0
Foreign Currency Contracts, Liability, Fair Value Disclosure	(109,000)	(1,192,000)	(109,000)
Total liabilities at fair value	(109,000)	(1,192,000)	(109,000)
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3
Assets:
Money market funds	0	0	0
Bank Time Deposits, Fair Value Disclosure	0	0	0
Commercial Paper, Fair value	0	0	0
Corporate notes and bonds, Fair Value	0	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0	0
Total assets at fair value	0	0	0
Liabilities:
Contingent earn-out	(889,000)	(4,000,000)	(889,000)
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0	0
Total liabilities at fair value	(889,000)	(4,000,000)	(889,000)
Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	42,291,674	57,563,000	42,291,674
Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 39,113,394	$ 27,194,000	$ 39,113,394

Fair Value Measures (Changes in

Fair Value Measures (Changes in Fair Value of Contingent Earn-Out Liabilities) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Document Period End Date			Jun. 30, 2019
Balance at beginning of period	$ 1,450	$ 11,752	$ 4,000	$ 8,648
Earn-out liabilities established at time of acquisition	0	1,500	0	2,000
Payments and foreign currency translation	0	(4,557)	(2,550)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements				4,652
Adjustments to fair value included in acquisition-related costs, net	(561)	(660)	(561)	2,039
Balance at end of period	889	$ 8,035	889	$ 8,035
Contingent Consideration Payment, Higher End	$ 1,700		$ 1,700

Fair Value Measures Fair Value

Fair Value Measures Fair Value Measures - Additional Debt Details (Details) - USD ($) $ in Millions	Jun. 30, 2019	Sep. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt, Fair Value	$ 2,112.7	$ 2,423.6
Debt Instrument, Face Amount	$ 2,137	$ 2,437

Accrued Expenses and Other Cu_3

Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Payables and Accruals [Abstract]
Compensation	$ 116,289	$ 174,984
Cost of revenue related liabilities	52,621	30,432
Sales and other taxes payable	27,355	21,220
Accrued interest payable	12,681	21,326
Facility-related liabilities	3,281	4,621
Sales and marketing incentives	2,508	1,889
Sales and other taxes payable	6,459	5,983
Other	23,818	8,884
Total	$ 245,012	$ 269,339

Restructuring and Other Charg_3

Restructuring and Other Charges, net (Accrual Activity Relating to Restructuring and Other Charges) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring [Roll Forward]
Balance at September 30, 2018			$ 16,193
Restructuring charges	$ 1,079	$ 7,074	21,657	$ 17,457
Restructuring Reserve, Accrual Adjustment			(592)
Cash payments			(29,709)
Balance at June 30, 2019	7,549		7,549
Personnel
Restructuring [Roll Forward]
Balance at September 30, 2018			9,690
Restructuring charges	677	6,324	19,104	13,687
Restructuring Reserve, Accrual Adjustment			(307)
Cash payments			(23,429)
Balance at June 30, 2019	5,058		5,058
Facilities
Restructuring [Roll Forward]
Balance at September 30, 2018			6,503
Restructuring charges	402	$ 750	2,553	$ 3,770
Restructuring Reserve, Accrual Adjustment			(285)
Cash payments			(6,280)
Balance at June 30, 2019	$ 2,491		$ 2,491

Restructuring and Other Charg_4

Restructuring and Other Charges, net (By Segment) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (1,079)	$ (7,074)	$ (21,657)	$ (17,457)
Restructuring Charges and Other Expenses	16,118	5,342	60,668	27,792
Healthcare
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(223)	(377)	(4,814)	(3,703)
Restructuring Charges and Other Expenses	223	377	4,814	3,703
Enterprise
Restructuring Cost and Reserve [Line Items]
Restructuring charges	165	(3,215)	(5,099)	(6,109)
Restructuring Charges and Other Expenses	(165)	3,215	5,099	6,109
Automotive
Restructuring Cost and Reserve [Line Items]
Restructuring charges	607	(1,233)	(6,931)	(2,233)
Restructuring Charges and Other Expenses	14,171	1,233	34,222	2,233
Other
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(544)	(208)	(1,458)	(2,122)
Restructuring Charges and Other Expenses	783	208	4,764	2,122
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(1,084)	(2,041)	(3,355)	(3,290)
Restructuring Charges and Other Expenses	1,106	309	11,769	13,625
Personnel
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(677)	(6,324)	(19,104)	(13,687)
Personnel | Healthcare
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(222)	(377)	(4,672)	(3,678)
Personnel | Enterprise
Restructuring Cost and Reserve [Line Items]
Restructuring charges	165	(3,412)	(5,086)	(3,939)
Personnel | Automotive
Restructuring Cost and Reserve [Line Items]
Restructuring charges	639	(1,233)	(5,224)	(2,233)
Personnel | Other
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(529)	(154)	(1,443)	(1,498)
Personnel | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(730)	(1,148)	(2,679)	(2,339)
Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(402)	(750)	(2,553)	(3,770)
Facilities | Healthcare
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(1)	0	(142)	(25)
Facilities | Enterprise
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	197	(13)	(2,170)
Facilities | Automotive
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(32)	0	(1,707)	0
Facilities | Other
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(15)	(54)	(15)	(624)
Facilities | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(354)	(893)	(676)	(951)
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other Charges	15,039	(1,732)	39,011	10,335
Other Restructuring [Member] | Healthcare
Restructuring Cost and Reserve [Line Items]
Other Charges	0	0	0	0
Other Restructuring [Member] | Enterprise
Restructuring Cost and Reserve [Line Items]
Other Charges	0	0	0	0
Other Restructuring [Member] | Automotive
Restructuring Cost and Reserve [Line Items]
Other Charges	14,778	0	27,291	0
Other Restructuring [Member] | Other
Restructuring Cost and Reserve [Line Items]
Other Charges	239	0	3,306	0
Other Restructuring [Member] | Corporate
Restructuring Cost and Reserve [Line Items]
Other Charges	$ 22	(1,732)	$ 8,414	10,335
Chief Executive Officer [Member] | Other Restructuring [Member] | Corporate
Restructuring Cost and Reserve [Line Items]
Other Charges		$ 1,100		$ 5,600

Restructuring and Other Charg_5

Restructuring and Other Charges, net (Additional Information) (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Sep. 30, 2018USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Charges and Other Expenses	$ 16,118	$ 5,342	$ 60,668	$ 27,792
Restructuring Reserve	7,549		$ 7,549		$ 16,193
Document Fiscal Year Focus			2019
Restructuring charges	1,079	7,074	$ 21,657	$ 17,457
Number of personnel eliminated			391	280
Proceeds from Insurance Claims	400	2,800		$ 2,500
Tangible Asset Impairment Charges			$ (700)	7,200
Personnel
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	5,058		5,058		9,690
Restructuring charges	677	6,324	19,104	13,687
Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	2,491		2,491		$ 6,503
Restructuring charges	402	750	2,553	3,770
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other Charges	15,039	(1,732)	39,011	10,335
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring Charges and Other Expenses	1,106	309	11,769	13,625
Restructuring charges	1,084	2,041	3,355	3,290
Corporate | Personnel
Restructuring Cost and Reserve [Line Items]
Restructuring charges	730	1,148	2,679	2,339
Corporate | Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring charges	354	893	676	951
Corporate | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other Charges	22	(1,732)	8,414	10,335
Corporate | Chief Executive Officer [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other Charges		$ 1,100		$ 5,600
Corporate transformation [Member] | Corporate | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other Charges			8,700
Stand-up and separation [Member] | Corporate | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other Charges	15,200		27,700
Accelerated depreciation [Member] | Corporate | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other Charges	$ 200		$ 3,300

Debt and Credit Facilities (Bor

Debt and Credit Facilities (Borrowing Obligations) (Detail) - USD ($) $ in Thousands	1 Months Ended
	Sep. 30, 2018	Nov. 30, 2017	Jan. 31, 2017	Jun. 30, 2019	Dec. 22, 2016	Jun. 21, 2016	Oct. 22, 2012	Aug. 14, 2012
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months				$ 0
Long-term Debt, Maturities, Repayments of Principal in Year Two				0
Long-term Debt, Maturities, Repayments of Principal in Year Three				0
Long-term Debt, Maturities, Repayments of Principal in Year Four				310,463
Long-term Debt, Maturities, Repayments of Principal in Year Five				676,488
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five				1,150,000
Total debt	$ 2,185,361			1,923,716
Less: current portion	0			0
Total long-term debt	2,185,361			1,923,716
Debt Issuance Costs, Noncurrent, Net	(843)			(594)
Long-term Debt, Gross				2,136,951
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net				(213,235)
5.625% Senior Notes due 2026 [Member]
Debt Instrument [Line Items]
Senior Notes, net of unamortized premium	494,915			495,364	$ 500,000
5.375% Senior Notes due August 15, 2020
Debt Instrument [Line Items]
Senior Notes, net of unamortized premium	298,759			0			$ 350,000	$ 700,000
Repayments of Debt	150,000		$ 600,000
6.0% Senior Notes due 2024 [Member]
Debt Instrument [Line Items]
Senior Notes, net of unamortized premium	298,220			298,452		$ 300,000
Convertible Debentures One Percent Due Twenty Thirty Five [Member]
Debt Instrument [Line Items]
Senior Notes, net of unamortized premium	553,973			573,840
Convertible Debentures Two Point Seven Five Percent Due November One Twenty Thirty One [Member]
Debt Instrument [Line Items]
Convertible Debentures, net of unamortized discount	46,568			46,568
Repayments of Debt		$ 331,200
1.25% Convertible Debentures due 2025 [Member]
Debt Instrument [Line Items]
Convertible Debentures, net of unamortized discount	263,863			272,350
Convertible Debentures One Point Five Percent Due November One Twenty Thirty Five [Member] [Member]
Debt Instrument [Line Items]
Convertible Debentures, net of unamortized discount	$ 229,906			237,736
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months				0
Long-term Debt, Maturities, Repayments of Principal in Year Two				0
Long-term Debt, Maturities, Repayments of Principal in Year Three				0
Long-term Debt, Maturities, Repayments of Principal in Year Four				0
Long-term Debt, Maturities, Repayments of Principal in Year Five				0
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five				800,000
Total debt				793,222
Long-term Debt, Gross				800,000
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net				(6,778)
Convertible Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months				0
Long-term Debt, Maturities, Repayments of Principal in Year Two				0
Long-term Debt, Maturities, Repayments of Principal in Year Three				0
Long-term Debt, Maturities, Repayments of Principal in Year Four				310,463
Long-term Debt, Maturities, Repayments of Principal in Year Five				676,488
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five				350,000
Total debt				1,130,494
Long-term Debt, Gross				1,336,951
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net				$ (206,457)

Debt and Credit Facilities Borr

Debt and Credit Facilities Borrowing Obligations Detail (Details) - USD ($) $ in Millions	Jun. 30, 2019	Sep. 30, 2018
Borrowing Obligations Detail [Abstract]
Long-term Debt, Fair Value	$ 2,112.7	$ 2,423.6
Debt Instrument, Face Amount	$ 2,137	$ 2,437

Debt and Credit Facilities 5.37

Debt and Credit Facilities 5.375% Senior Notes due 2020 (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2018	Jan. 31, 2017	Jun. 30, 2019	Sep. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jan. 09, 2017	Oct. 22, 2012	Aug. 14, 2012
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 2,437,000		$ 2,137,000	$ 2,437,000	$ 2,137,000
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities					300,000	$ 331,172
Loss on extinguishment of debt			900		910	$ 0
5.375% Senior Notes due August 15, 2020
Debt Instrument [Line Items]
Debt Instrument, Face Amount	300,000			300,000			$ 450,000
Senior Notes, Noncurrent	$ 298,759		$ 0	$ 298,759	$ 0			$ 350,000	$ 700,000
Debt Instrument, Interest Rate, Stated Percentage	5.375%		5.375%	5.375%	5.375%				5.375%
Unamortized Debt Issuance Expense	$ 1,241			$ 1,241
Repayments of Debt	$ 150,000	$ 600,000
Loss on extinguishment of debt		$ (18,600)		$ (300)

Debt and Credit Facilities 6.0%

Debt and Credit Facilities 6.0% Senior Notes due 2024 (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Jun. 30, 2016	Jun. 30, 2019	Sep. 30, 2018	Dec. 22, 2016	Jun. 21, 2016
5.625% Senior Notes due 2026 [Member]
Debt Instrument [Line Items]
Senior Notes, Noncurrent		$ 495,364	$ 494,915	$ 500,000
Debt Instrument, Interest Rate, Stated Percentage		5.625%	5.625%	5.625%
Unamortized Debt Issuance Expense		$ 4,636	$ 5,085
6.0% Senior Notes due 2024 [Member]
Debt Instrument [Line Items]
Senior Notes, Noncurrent		$ 298,452	$ 298,220		$ 300,000
Debt Instrument, Interest Rate, Stated Percentage		6.00%	6.00%		6.00%
Proceeds from Issuance of Long-term Debt	$ 297,500
Unamortized Debt Issuance Expense		$ 1,548	$ 1,780
Debt Instrument, Redemption Price, Percentage		100.00%

Debt and Credit Facilities 1.0%

Debt and Credit Facilities 1.0% Convertible Debentures due 2035 (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended
	Nov. 30, 2017	Jun. 30, 2019	Jun. 30, 2015	Dec. 31, 2014	Mar. 31, 2017	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018	Dec. 07, 2015	Jun. 01, 2015	Oct. 24, 2011
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 2,137,000				$ 2,137,000		$ 2,437,000
Debt Issuance Costs, Noncurrent, Net		594				594		$ 843
Loss on extinguishment of debt		$ 900				$ 910	$ 0
Convertible Debentures One Percent Due Twenty Thirty Five [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount									$ 676,500
Debt Instrument, Convertible, Carrying Amount of Equity Component									$ 181,100
Debt Instrument, Convertible, Conversion Price									$ 27.22
Debt Instrument, Interest Rate, Stated Percentage		1.00%				1.00%		1.00%	1.00%
Convertible Debt, Noncurrent									$ 495,400
Convertible Debentures Two Point Seven Five Percent Due November One Twenty Thirty One [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 46,600				$ 46,600					$ 690,000
Debt Instrument, Convertible, Carrying Amount of Equity Component											$ 156,400
Debt Instrument, Convertible, Conversion Price											$ 32.30
Repayments of Convertible Debt			$ 256,200	$ 38,300	$ 17,800
Debt Instrument, Interest Rate, Stated Percentage		2.75%				2.75%		2.75%			2.75%
Repayments of Debt	$ 331,200
Convertible Debt, Noncurrent											$ 533,600
Convertible Debentures One Point Five Percent Due November One Twenty Thirty Five [Member] [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount										$ 263,900
Debt Instrument, Convertible, Carrying Amount of Equity Component										$ 55,300
Debt Instrument, Convertible, Conversion Price										$ 23.26
Debt Instrument, Interest Rate, Stated Percentage		1.50%				1.50%		1.50%
Convertible Debt, Noncurrent										$ 208,600

Debt and Credit Facilities 2.75

Debt and Credit Facilities 2.75% Convertible Debentures due 2031 (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended
	Nov. 30, 2017	Jun. 30, 2019	Jun. 30, 2015	Dec. 31, 2014	Mar. 31, 2017	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018	Oct. 24, 2011
Debt Instrument [Line Items]
Loss on extinguishment of debt		$ 900				$ 910	$ 0
Debt Instrument, Face Amount		2,137,000				2,137,000		$ 2,437,000
Debt Issuance Costs, Noncurrent, Net		594				594		843
Convertible Debentures Two Point Seven Five Percent Due November One Twenty Thirty One [Member]
Debt Instrument [Line Items]
Repayments of Convertible Debt			$ 256,200	$ 38,300	$ 17,800
Debt Instrument, Face Amount		$ 46,600				$ 46,600			$ 690,000
Repayments of Debt	$ 331,200
Debt Instrument, Convertible, Conversion Price									$ 32.30
Debt Instrument, Unamortized Discount								$ 0
Convertible Debt, Noncurrent									$ 533,600
Debt Instrument, Convertible, Carrying Amount of Equity Component									$ 156,400
Debt Instrument, Interest Rate, Stated Percentage		2.75%				2.75%		2.75%	2.75%

Debt and Credit Facilities 1.5%

Debt and Credit Facilities 1.5% Convertible Debentures due 2035 (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 30, 2019	Sep. 30, 2018	Jun. 01, 2015
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 2,137,000	$ 2,437,000
Debt Issuance Costs, Noncurrent, Net	$ 594	$ 843
Convertible Debentures One Point Five Percent Due November One Twenty Thirty Five [Member] [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 263,900
Debt Instrument, Interest Rate, Stated Percentage	1.50%	1.50%
Debt Instrument, Convertible, Conversion Price			$ 23.26
Debt issuance Percentage of Principal Amount			97.09%
Debt Instrument, Unamortized Discount (Premium), Net			$ 7,700
Debt Instrument, Unamortized Discount	$ 25,294	$ 32,845
Convertible Debt, Noncurrent			208,600
Debt Instrument, Convertible, Carrying Amount of Equity Component			$ 55,300

Debt and Credit Facilities Cred

Debt and Credit Facilities Credit Facility (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018	Apr. 15, 2016
Line of Credit Facility [Line Items]
Debt Issuance Costs, Noncurrent, Net	$ 594	$ 594		$ 843
Loss on extinguishment of debt	(900)	(910)	$ 0
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	236,700	236,700			$ 242,500
Letters of Credit Outstanding, Amount	$ 5,800	$ 5,800
Minimum | London Interbank Offered Rate [Member] | Revolving Credit Facility Due April Fifteenth Twenty Twenty One [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.50%
Minimum | Base Rate [Member] | Revolving Credit Facility Due April Fifteenth Twenty Twenty One [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.50%
Maximum | London Interbank Offered Rate [Member] | Revolving Credit Facility Due April Fifteenth Twenty Twenty One [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.75%
Maximum | Base Rate [Member] | Revolving Credit Facility Due April Fifteenth Twenty Twenty One [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.75%

Debt and Credit Facilities Appl

Debt and Credit Facilities Applicable Borrowing Rates and Additional Detail (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Jun. 30, 2019	Sep. 30, 2018	Mar. 13, 2017	Dec. 22, 2016	Jun. 21, 2016	Dec. 07, 2015	Aug. 14, 2012	Oct. 24, 2011
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount		$ 0
5.625% Senior Notes due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.625%	5.625%		5.625%
Debt Instrument, Interest Rate, Effective Percentage	5.625%	5.625%
nuan_DebtInstrumentMaturityYear	2026	2026
Unamortized Debt Issuance Expense	$ 4,636	$ 5,085
Debt Instrument, Unamortized Premium	$ 0	$ 0
6.0% Senior Notes due 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.00%	6.00%			6.00%
Debt Instrument, Interest Rate, Effective Percentage	6.00%	6.00%
nuan_DebtInstrumentMaturityYear	2024	2024
Unamortized Debt Issuance Expense	$ 1,548	$ 1,780
Debt Instrument, Unamortized Premium		$ 0
5.375% Senior Notes due August 15, 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.375%	5.375%					5.375%
Debt Instrument, Interest Rate, Effective Percentage	5.28%	5.28%
nuan_DebtInstrumentMaturityYear	2020
Unamortized Debt Issuance Expense		$ 1,241
Debt Instrument, Unamortized Premium		$ 0
Convertible Debentures Two Point Seven Five Percent Due November One Twenty Thirty One [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.75%	2.75%						2.75%
Debt Instrument, Interest Rate, Effective Percentage	7.432%	7.43%
nuan_DebtInstrumentMaturityYear	2031
Unamortized Debt Issuance Expense	$ 0	$ 0
Debt Instrument, Unamortized Discount		$ 0
Convertible Debentures One Point Five Percent Due November One Twenty Thirty Five [Member] [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.50%	1.50%
Debt Instrument, Interest Rate, Effective Percentage	5.394%	5.39%
nuan_DebtInstrumentMaturityYear	2035
Unamortized Debt Issuance Expense	$ 865	$ 1,144
Debt Instrument, Unamortized Discount	$ (25,294)	$ (32,845)
Convertible Debentures One Percent Due Twenty Thirty Five [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.00%	1.00%				1.00%
Debt Instrument, Interest Rate, Effective Percentage	5.622%	5.62%
nuan_DebtInstrumentMaturityYear	2035
Unamortized Debt Issuance Expense	$ 4,591	$ 5,587
Debt Instrument, Unamortized Discount	$ (98,057)	$ (116,928)
Convertible Debentures 1.25% Due 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.25%	1.25%	1.25%
Debt Instrument, Interest Rate, Effective Percentage	5.578%	5.578%
nuan_DebtInstrumentMaturityYear	2025	2025
Unamortized Debt Issuance Expense	$ 3,277	$ 3,704
Debt Instrument, Unamortized Discount	$ (74,372)	$ (82,433)
Minimum | Revolving Credit Facility Due April Fifteenth Twenty Twenty One [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Minimum | Revolving Credit Facility Due April Fifteenth Twenty Twenty One [Member] | London Interbank Offered Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%
Maximum | Revolving Credit Facility Due April Fifteenth Twenty Twenty One [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Maximum | Revolving Credit Facility Due April Fifteenth Twenty Twenty One [Member] | London Interbank Offered Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%

Debt and Credit Facilities 5.62

Debt and Credit Facilities 5.625% Senior Notes due December 2026 (Details) - 5.625% Senior Notes due 2026 [Member] - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Dec. 31, 2016	Jun. 30, 2019	Sep. 30, 2018	Dec. 22, 2016
Debt Instrument [Line Items]
Senior Notes, Noncurrent		$ 495,364	$ 494,915	$ 500,000
Debt Instrument, Interest Rate, Stated Percentage		5.625%	5.625%	5.625%
Proceeds from Issuance of Senior Long-term Debt	$ 495,000
Before December 15, 2021 [Member]
Debt Instrument [Line Items]
Aggregate Principal Amount of Senior Notes, Redemption Price, Percentage		100.00%

Debt and Credit Facilities 1.25

Debt and Credit Facilities 1.25% Convertible Debentures due 2025 (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended		74 Months Ended
	Nov. 30, 2017	Jun. 30, 2019	Jun. 30, 2015	Dec. 31, 2014	Mar. 31, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Sep. 30, 2018	Mar. 13, 2017	Oct. 24, 2011
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 2,137				$ 2,137		$ 2,137	$ 2,437
Stock Repurchased and Retired During Period, Shares		1.7				7.8	8.1	63.9
Stock Repurchased During Period, Value		$ 29.6				$ 120.9	$ 112	$ 1,063.6
Convertible Debentures 1.25% Due 2025 [Member]
Debt Instrument [Line Items]
Convertible Debt, Noncurrent										$ 252.1
Debt Instrument, Face Amount										$ 350
Debt Instrument, Interest Rate, Stated Percentage		1.25%				1.25%		1.25%	1.25%	1.25%
Debt Instrument, Convertible, Carrying Amount of Equity Component										$ 97.9
Debt Instrument, Convertible, Conversion Price										$ 22.22
Convertible Debentures Two Point Seven Five Percent Due November One Twenty Thirty One [Member]
Debt Instrument [Line Items]
Convertible Debt, Noncurrent											$ 533.6
Debt Instrument, Face Amount		$ 46.6				$ 46.6		$ 46.6			$ 690
Debt Instrument, Interest Rate, Stated Percentage		2.75%				2.75%		2.75%	2.75%		2.75%
Repayments of Convertible Debt			$ 256.2	$ 38.3	$ 17.8
Repayments of Debt	$ 331.2
Debt Instrument, Convertible, Carrying Amount of Equity Component											$ 156.4
Debt Instrument, Convertible, Conversion Price											$ 32.30

Stockholders' Equity Stockhol_2

Stockholders' Equity Stockholders' Equity (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended	9 Months Ended		74 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Aug. 01, 2018	Apr. 29, 2015	Apr. 29, 2013
Stockholders Equity Note [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased, Value					$ 500	$ 500	$ 500
Stock Repurchased and Retired During Period, Shares	1.7	7.8	8.1	63.9
Stock Repurchased During Period, Value	$ 29.6	$ 120.9	$ 112	$ 1,063.6
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 436.4	$ 436.4		$ 436.4

Net Income (Loss) Per Share (Ad

Net Income (Loss) Per Share (Additional Information) (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income (loss)	$ 9,259	$ (14,037)	$ 105,681	$ (124,862)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	9,259	(20,720)	6,209	(140,396)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	$ 0	$ 6,683	$ 99,472	$ 15,534
Weighted Average Number of Shares Outstanding, Basic	285,942	292,663	285,064	292,703
Dilutive Securities, Effect on Basic Earnings Per Share	2,706	0	3,089	0
Weighted Average Number of Shares Outstanding, Diluted	288,648	292,663	288,153	292,703
Earnings Per Share, Basic	$ 0.03	$ (0.05)	$ 0.37	$ (0.43)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0	0.02	0.35	0.05
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.03	$ (0.07)	$ 0.02	$ (0.48)
Weighted Average Number of Shares, Contingently Issuable	2,555	1,975	2,542	1,801
Income (Loss) from Continuing Operations, Per Diluted Share	$ 0.03	$ (0.07)	$ 0.02	$ (0.48)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	0	0.02	0.35	0.05
Earnings Per Share, Diluted	$ 0.03	$ (0.05)	$ 0.37	$ (0.43)
Anti-dilutive common equivalent shares excluded from computation of diluted net income (loss) per share	527	4,408	673	3,838

Stock-Based Compensation (Inclu

Stock-Based Compensation (Included in Consolidated Statements of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Document Period End Date			Jun. 30, 2019
Stock based compensation	$ 35,932	$ 33,499	$ 100,143	$ 101,466
Cost of hosting and professional services
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	7,280	6,790	20,093	20,474
Cost of product and licensing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	197	114	593	492
Cost of maintenance and support
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	583	551	730	1,770
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	10,262	8,034	26,912	24,798
Sales and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	7,593	8,461	24,488	25,997
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	$ 10,017	$ 9,549	$ 27,327	$ 27,935

Stock-Based Compensation (Summa

Stock-Based Compensation (Summary of Activity Relating to Restricted Units) (Detail) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Document Period End Date	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	13,116		19,144
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	2 years 8 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	$ 17.63	$ 17.16
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 20
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	13,116	20,504
Restricted Units, Outstanding [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	2 years 8 months 12 days	2 years 6 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	$ 20	$ 100
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 17.63		$ 17.31
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	1,500
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 12.79
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period	4,528
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price	$ 17.89
Closing market value of common stock	15.97
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price for restricted units, vested	$ 0.001
Number of Shares Underlying Restricted Units — Contingent Awards
Restricted Units, Outstanding [Roll Forward]
Outstanding at September 30, 2018	3,039,568
Granted	1,342,836
Earned/released	(1,386,735)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Number of Shares, Period Increase (Decrease)	296,759
Forfeited	(688,835)
Outstanding at June 30, 2019	2,010,075
Weighted average remaining recognition period of outstanding restricted units	1 year 7 months 6 days
Unrecognized stock-based compensation expense of outstanding restricted units	$ 27,000
Aggregate intrinsic value of outstanding restricted units (b)	$ 32,100
Number of Shares Underlying Restricted Units — Time-Based Awards
Restricted Units, Outstanding [Roll Forward]
Outstanding at September 30, 2018	6,872,087
Granted	6,214,882
Earned/released	(5,220,312)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Number of Shares, Period Increase (Decrease)	296,759
Forfeited	(1,159,444)
Outstanding at June 30, 2019	7,003,972
Weighted average remaining recognition period of outstanding restricted units	1 year 7 months 6 days
Unrecognized stock-based compensation expense of outstanding restricted units	$ 62,200
Aggregate intrinsic value of outstanding restricted units (b)	$ 111,900

Stock-Based Compensation (Sum_2

Stock-Based Compensation (Summary of Weighted-Average Grant-Date Fair Value and Intrinsic Value of Restricted Units Vested) (Detail) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Document Period End Date	Jun. 30, 2019
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant-date fair value per share	$ 17.30	$ 15.76
Total intrinsic value of shares vested (in millions)	$ 106.1	$ 115.3

Stock-Based Compensation Stock

Stock-Based Compensation Stock Incentive Plan (Details)	9 Months Ended
	Jun. 30, 2019shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	82,250,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	83,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	8,500,000

Income Taxes Components of Inco

Income Taxes Components of Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Components of Income (Loss) before Income Taxes [Abstract]
Document Period End Date			Jun. 30, 2019
Domestic	$ (4,912)	$ (42,438)	$ (20,475)	$ (162,305)
Foreign	21,957	31,277	34,498	(45,508)
Income (loss) before income taxes	$ 17,045	$ (11,161)	$ 14,023	$ (207,813)

Income Taxes (Components of Ben

Income Taxes (Components of Benefit from Income Taxes) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Domestic	$ (3,086)	$ (339)	$ (8,805)	$ (76,130)
Foreign	10,872	9,898	16,619	8,713
Provision (benefit) for income taxes	$ 7,786	$ 9,559	$ 7,814	$ (67,417)
Effective tax rate	45.70%	(85.60%)	55.70%	32.40%

Income Taxes (Additional Inform

Income Taxes (Additional Information) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Acquisition [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	24.53%	21.00%	24.53%
Deferred Income Tax Expense (Benefit)			$ (18,975)	$ (90,836)
Effective Income Tax Rate Reconciliation, Percent	45.70%	(85.60%)	55.70%	32.40%
TCJA [Domain]
Business Acquisition [Line Items]
Deferred Income Tax Expense (Benefit)				$ 87,000
Current Income Tax Expense (Benefit)				$ 2,000

Commitments and Contingencies (

Commitments and Contingencies (Details)	9 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Indemnification term for former officers and directors	6 years

Segment and Geographic Inform_3

Segment and Geographic Information and Significant Customers (Segment Results Along with Reconciliation of Segment Profit to Income Before Income Taxes) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Stranded Costs	$ 1,900	$ 2,100	$ 3,700	$ 5,900
Segment Revenues	449,197	449,449	1,352,434	1,362,866
Segment profit	155,838	139,947	448,497	426,050
Corporate expenses and other, net	(36,904)	(41,135)	(104,963)	(148,214)
Acquisition-related revenues	(1,849)	(2,336)	(4,985)	(11,495)
Stock-based compensation	(35,932)	(33,499)	(100,143)	(101,466)
Amortization of intangible assets	(25,391)	(32,028)	(78,126)	(95,838)
Business Combination, Acquisition Related Costs	(1,154)	(4,916)	(6,223)	(12,837)
Restructuring and other charges, net	(16,118)	(5,342)	(60,668)	(27,792)
Goodwill and Intangible Asset Impairment	0	0	0	(137,907)
Other expenses, net	(21,445)	(31,852)	(79,366)	(98,314)
Income (loss) before income taxes	17,045	(11,161)	14,023	(207,813)
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Segment Revenues	(1,847)	(2,336)	(4,985)	(11,495)
Health Care Segment [Member]
Segment Reporting Information [Line Items]
Segment Revenues	227,866		704,135
segment revenue	228,384	236,194	704,911	742,969
Segment profit	79,978	76,504	247,036	238,966
Enterprise Segment [Member]
Segment Reporting Information [Line Items]
Segment Revenues	137,782		382,676
segment revenue	137,888	119,596	383,217	352,862
Segment profit	40,820	32,513	109,015	95,078
Automotive Segment [Member]
Segment Reporting Information [Line Items]
Segment Revenues	71,760		218,738
segment revenue	72,982	73,754	222,406	204,202
Segment profit	30,662	27,963	76,627	79,708
Other Segments [Member]
Segment Reporting Information [Line Items]
Segment Revenues	11,789		46,885
segment revenue	11,790	22,241	46,885	74,328
Segment profit	4,378	2,967	15,819	12,298
Operating Segments [Member]
Segment Reporting Information [Line Items]
segment revenue	$ 451,044	$ 451,785	$ 1,357,419	$ 1,374,361

Segment and Geographic Inform_4

Segment and Geographic Information and Significant Customers (Classification of Revenue by Major Geographic Areas) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Segment Revenues	$ 449,197	$ 449,449	$ 1,352,434	$ 1,362,866
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Segment Revenues	337,411	333,809	1,019,945	1,014,295
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Segment Revenues	$ 111,786	$ 115,640	$ 332,489	$ 348,571

Supplemental Cash Flow Suppleme

Supplemental Cash Flow Supplemental Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Supplemental Cash Flow Elements [Abstract]
Interest Paid, Including Capitalized Interest, Operating and Investing Activities	$ 22,657	$ 22,536	$ 63,411	$ 71,244
Income Taxes Paid	$ 7,058	$ 2,530	$ 14,272	$ 9,895

Related party transaction (Deta

Related party transaction (Details) - Magnet [Domain] - USD ($) $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Mar. 31, 2019	Sep. 30, 2018
Licensed Technology [Member]
Related Party Transaction, Purchases from Related Party	$ 1.5	$ 3.5		$ 5
Service Agreements [Member] | Maximum
Related Party Transaction, Purchases from Related Party		$ 2	$ 2

Uncategorized Items - nuan06302

Label	Element	Value
Contract with Customer, Asset, Net	us-gaap_ContractWithCustomerAssetNet	$ 168,595,000