XML 83 R69.htm IDEA: XBRL DOCUMENT v3.10.0.1

Goodwill and Intangible Assets, Net - Details of Total Goodwill (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Goodwill [Line Items]
Goodwill resulting from acquisitions	$ 227,283	$ 18,535
Value of intangible asset	265,249	177,326
Core Technology [Member]
Goodwill [Line Items]
Value of intangible asset	144,448	91,172
Customer Relationships [Member]
Goodwill [Line Items]
Value of intangible asset	110,519	$ 82,642
Vubiquity [Member]
Goodwill [Line Items]
Goodwill resulting from acquisitions	146,912
Vubiquity [Member] | Trademarks [Member]
Goodwill [Line Items]
Value of intangible asset	$ 10,104
Useful life of intangible assets	8 years
Vubiquity [Member] | Core Technology [Member]
Goodwill [Line Items]
Value of intangible asset	$ 45,692
Useful life of intangible assets	5 years
Vubiquity [Member] | Customer Relationships [Member]
Goodwill [Line Items]
Value of intangible asset	$ 38,630
Useful life of intangible assets	9 years
Projekt 202 [Member]
Goodwill [Line Items]
Goodwill resulting from acquisitions	$ 34,032
Projekt 202 [Member] | Customer Relationships [Member]
Goodwill [Line Items]
Value of intangible asset	$ 19,835
Useful life of intangible assets	4 years
UXP Systems [Member]
Goodwill [Line Items]
Goodwill resulting from acquisitions	$ 41,468
UXP Systems [Member] | Core Technology [Member]
Goodwill [Line Items]
Value of intangible asset	$ 31,552
Useful life of intangible assets	5 years
UXP Systems [Member] | Customer Relationships [Member]
Goodwill [Line Items]
Value of intangible asset	$ 6,552
Useful life of intangible assets	5 years

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- 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

Name:	us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_GoodwillLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=dox_CoreTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=dox_VubiquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=dox_Projekt202Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=dox_UXPSystemsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: