Goodwill and Intangible Assets

3 Months Ended

Dec. 31, 2024

6. Goodwill and Intangible Assets

Goodwill and acquired intangible assets consisted of the following:


(in thousands)	December 31, 2024						September 30, 2024
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
Goodwill (not amortized)					$	3,423,420					$	3,461,891
Intangible assets with finite lives (amortized):
Purchased software	$	628,414	$	440,693	$	187,721	$	634,439	$	436,471	$	197,968
Capitalized software		22,877		22,877		—		22,877		22,877		—
Customer lists and relationships		1,129,789		460,818		668,971		1,141,086		457,718		683,368
Trademarks and trade names		37,565		22,149		15,416		37,961		21,821		16,140
Other		3,839		3,839		—		3,941		3,941		—
Total intangible assets with finite lives	$	1,822,484	$	950,376	$	872,108	$	1,840,304	$	942,828	$	897,476
Total goodwill and acquired intangible assets					$	4,295,528					$	4,359,367

Changes in Goodwill were as follows:


(in thousands)
Balance, October 1, 2024	$	3,461,891
Foreign currency translation adjustment		(38,471	)
Balance, December 31, 2024	$	3,423,420

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
	December 31, 2024		December 31, 2023
Amortization of acquired intangible assets	$	11,440	$	10,363
Cost of revenue		8,300		9,566
Total amortization expense	$	19,740	$	19,929