Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill and Acquired Intangible Assets

Goodwill and acquired intangible assets consisted of the following:

(in thousands)	September 30, 2022						September 30, 2021
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
Goodwill (not amortized)					$	2,353,654					$	2,191,887
Intangible assets with finite lives (amortized)(1):
Purchased software	$	502,859	$	355,857	$	147,002	$	483,771	$	338,542	$	145,229
Capitalized software		22,877		22,877		—		22,877		22,877		—
Customer lists and relationships		594,970		369,390		225,580		574,516		350,648		223,868
Trademarks and trade names		27,546		17,410		10,136		26,906		17,036		9,870
Other		3,766		3,766		—		4,000		4,000		—
	$	1,152,018	$	769,300	$	382,718	$	1,112,070	$	733,103	$	378,967
Total goodwill and acquired intangible assets					$	2,736,372					$	2,570,854

(1) The weighted-average useful lives of purchased software, customer lists and relationships, and trademarks and trade names with a remaining net book value are 11 years, 11 years, and 12 years, respectively.

Schedule of Changes in Goodwill by Reportable Segment

Changes in goodwill presented by reportable segment were as follows:

(in thousands)	Software Products			Professional Services			Total
Balance, September 30, 2020	$	1,583,316		$	42,470		$	1,625,786
Arena acquisition		563,620			—			563,620
Other acquisitions		181			400			581
Foreign currency translation adjustments		1,851			49			1,900
Balance, September 30, 2021	$	2,148,968		$	42,919		$	2,191,887
Intland Software acquisition		240,971			—			240,971
Other acquisitions		691			—			691
Divestiture of business		—			(32,992	)		(32,992	)
Foreign currency translation adjustments		(46,611	)		(292	)		(46,903	)
Balance, September 30, 2022	$	2,344,019		$	9,635		$	2,353,654

Schedule of Aggregate Amortization Expense for Intangible Assets with Finite Lives

The aggregate amortization expense for intangible assets with finite lives recorded for the years ended September 30, 2022, 2021 and 2020 was reflected in our Consolidated Statements of Operations as follows:

(in thousands)	Year ended September 30,
	2022		2021		2020
Amortization of acquired intangible assets	$	34,970	$	29,396	$	28,713
Cost of software revenue		25,578		29,769		27,391
Total amortization expense	$	60,548	$	59,165	$	56,104