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v3.19.3

Goodwill and Acquired Intangible Assets (Schedule Of Movements of Goodwill by Reportable Segment) (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Nov. 19, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Goodwill [Roll Forward] |  |  |
Balance, beginning of period |  | $ 1,182,457 | $ 1,182,772
Foreign currency translation adjustments |  | (10,596) | (4,665)
Balance, end of period |  | 1,238,179 | 1,182,457
Software Products [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Balance, beginning of period |  | 1,152,720 | 1,152,917
Foreign currency translation adjustments |  | (10,329) | (4,547)
Balance, end of period |  | 1,196,064 | 1,152,720
Professional Services [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Balance, beginning of period |  | 29,737 | 29,855
Foreign currency translation adjustments |  | (267) | (118)
Balance, end of period |  | 42,115 | 29,737
Other acquisitions [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill acquired |  | 12,645 | 4,350
Other acquisitions [Member] | Software Products [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill acquired |  | 0 | 4,350
Other acquisitions [Member] | Professional Services [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill acquired |  | 12,645 | $ 0
Frustum [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill acquired | $ 53,700 | 53,673 |
Frustum [Member] | Software Products [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill acquired |  | 53,673 |
Frustum [Member] | Professional Services [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill acquired |  | $ 0 |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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