Goodwill and Intangible Assets (Tables)

9 Months Ended

Jun. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill and Acquired Intangible Assets

Goodwill and acquired intangible assets consisted of the following:

(in thousands)	June 30, 2023						September 30, 2022
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
Goodwill (not amortized)					$	3,377,319					$	2,353,654
Intangible assets with finite lives (amortized):
Purchased software	$	617,241	$	386,917	$	230,324	$	502,859	$	355,857	$	147,002
Capitalized software		22,877		22,877		—		22,877		22,877		—
Customer lists and relationships		1,116,980		406,177		710,803		594,970		369,390		225,580
Trademarks and trade names		37,005		19,012		17,993		27,546		17,410		10,136
Other		3,912		3,912		—		3,766		3,766		—
Total intangible assets with finite lives	$	1,798,015	$	838,895	$	959,120	$	1,152,018	$	769,300	$	382,718
Total goodwill and acquired intangible assets					$	4,336,439					$	2,736,372

Schedule of Changes in Goodwill by Reportable Segments

Changes in goodwill were as follows:

(in thousands)
Balance, October 1, 2022	$	2,353,654
Acquisitions		979,349
Foreign currency translation adjustment		44,316
Balance, June 30, 2023	$	3,377,319

Schedule of Aggregate Amortization Expense for Intangible Assets with Finite Lives

The aggregate amortization expense for intangible assets with finite lives is classified in our Consolidated Statements of Operations as follows:

(in thousands)	Three months ended				Nine months ended
	June 30, 2023		June 30, 2022		June 30, 2023		June 30, 2022
Amortization of acquired intangible assets	$	10,670	$	8,931	$	29,352	$	25,865
Cost of revenue		9,841		6,596		25,817		19,010
Total amortization expense	$	20,511	$	15,527	$	55,169	$	44,875