Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

The following table presents details of the Company’s total goodwill:


As of October 1, 2016	$	2,211,639
Goodwill resulting from acquisitions		18,535
Other		(8,965	)

As of September 30, 2017		2,221,209
Goodwill resulting from acquisitions(1)		227,283
Other		(3,597	)

As of September 30, 2018	$	2,444,895

(1)

Mainly relates to the acquisitions of Vubiquity, projekt202 and UXP. In allocating the total preliminary purchase price for Vubiquity, based on estimated fair values, the Company recorded $146,912 of goodwill, $38,630 of customer relationships to be amortized over approximately nine years, $45,692 of core technology to be amortized over approximately five years, $10,104 of trade mark to be amortized over eight years. In allocating the total preliminary purchase price of projekt202, based on estimated fair values, the Company recorded $34,032 of goodwill and $19,835 of customer relationships to be amortized over four years. In allocating the total preliminary purchase price of UXP, based on estimated fair values, the Company recorded $41,468 of goodwill, $31,552 of core technology to be amortized over five years and $6,552 of customer relationships to be amortized over approximately five years.

Details Regarding Total Definite-Lived Purchased Intangible Assets

The following table presents details regarding the Company’s total definite-lived purchased intangible assets:


	Gross		Accumulated Amortization			Net
September 30, 2018
Core technology	$	721,384	$	(576,936	)	$	144,448
Customer relationships		563,656		(453,137	)		110,519
Intellectual property rights and purchased computer software		51,996		(51,996	)		—
Other		43,646		(33,364	)		10,282

Total	$	1,380,682	$	(1,115,433	)	$	265,249

September 30, 2017
Core technology	$	604,673	$	(513,501	)	$	91,172
Customer relationships		497,296		(414,654	)		82,642
Intellectual property rights and purchased computer software		51,996		(51,996	)		—
Other		33,542		(30,030	)		3,512

Total	$	1,187,507	$	(1,010,181	)	$	177,326

Amortization Expense on Definite-Lived Intangible Assets

The following table presents the amortization expense of the Company’s definite-lived purchased intangible assets, included in each financial statement caption reported in the consolidated statements of income:


	Year Ended September 30,
	2018		2017		2016
Cost of revenue	$	572	$	1,405	$	1,609
Amortization of definite-lived purchased intangible assets		105,213		108,453		96,465

Total	$	105,785	$	109,858	$	98,074

Estimated Future Amortization Expense

The estimated future amortization expense of definite-lived purchased intangible assets as of September 30, 2018 is as follows:


	Amount
Fiscal year:
2019	$	92,693
2020		61,527
2021		42,554
2022		30,380
2023		14,682
Thereafter		23,413

Total	$	265,249