GOODWILL AND INTANGIBLE ASSETS

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The changes in the carrying amount of goodwill for the year ended December 31, 2023 are as follows:


(in millions)	Year Ended December 31, 2023
Beginning balance	$	286.8

Translation adjustments	0.6
Carrying amount at end of period	$	287.4

The Company assessed goodwill for impairment as part of its annual goodwill testing in accordance with the appropriate guidance (see Note 1) and determined none of its reporting units were impaired as of the annual testing date. The Company did not record an impairment of goodwill for the years ended December 31, 2023, 2022 and 2021.

Intangible Assets

The following tables summarize the amounts reported as intangible assets (in millions):


At December 31, 2023:	Gross Carrying Amount		Accumulated Amortization		Net		Weighted-Average Useful Life (in Years)	Weighted-Average Remaining Useful Life (in Years)
Developed technologies	$	626.1	$	(295.3)	$	330.8	14.4	8.1
Internal-use software	0.8		(0.1)		0.7		3.0	2.5
Internal-use software (in-process)	11.2		—		11.2		3.0	3.0
Customer relationships	1.6		(0.2)		1.4		10.0	8.8
Trademarks	6.1		(0.7)		5.4		10.0	8.8
Total intangible assets	$	645.8	$	(296.3)	$	349.5	13.9	7.9


At December 31, 2022:	Gross Carrying Amount		Accumulated Amortization		Net		Weighted-Average Useful Life (in Years)	Weighted-Average Remaining Useful Life (in Years)
Developed technologies	$	625.0	$	(252.9)	$	372.1	14.4	9.1
Customer relationships	1.6		—		1.6		10.0	9.8
Trademarks	6.1		(0.1)		6.0		10.0	9.8
Total intangible assets	$	632.7	$	(253.0)	$	379.7	14.4	9.1

As of December 31, 2023, the Company's developed technologies have estimated remaining useful lives ranging between 7 and 12 years. The Company's trademarks and customer relationships acquired as of December 31, 2023 have an estimated remaining useful life of approximately nine years. The Company's internal-use software assets are amortized over the estimated useful life of the software, which is generally three years. The Company concluded there was no impairment of long-lived intangible assets for the years ended December 31, 2023, 2022 and 2021.

The Company recorded amortization during the respective periods for these intangible assets as follows:


	Years Ended December 31,
(in millions)	2023		2022		2021
Amortization of intangible assets	$	42.8	$	41.1	$	50.7

Future amortization expense of intangible assets as of December 31, 2023 is estimated to be as follows (in millions):


Years Ended December 31,	Amortization Expense
2024	$	45.0
2025	46.3
2026	46.5
2027	44.7
2028	43.4
Thereafter	123.6
Total	$	349.5