The changes in the carrying amount of goodwill for the years ended December 31, 2024 and 2023 were as follows:


	Goodwill
	(in thousands)
Balance as of December 31, 2022	$	1,646,120
Goodwill acquired	42,780
Foreign currency translation	2,927
Balance as of December 31, 2023	$	1,691,827
Goodwill acquired	—
Foreign currency translation	(2,042)
Balance as of December 31, 2024	$	1,689,785


	As of December 31, 2024
	Weighted- Average Remaining Useful Life (Years)	Gross Carrying Amount		Accumulated Amortization		Net

	(in thousands, except years)
Domain names	2.0	$	745	$	(613)	$	132
Technology	2.3	308,333		(238,189)		70,144
Patents	8.8	39,373		(23,286)		16,087
Other	—	6,000		(6,000)		—
Total intangible assets		$	354,451	$	(268,088)	$	86,363


	As of December 31, 2023
	Weighted- Average Remaining Useful Life (Years)	Gross Carrying Amount		Accumulated Amortization		Net

	(in thousands, except years)
Domain names	3.0	$	745	$	(546)	$	199

Technology	2.8	323,313		(197,608)		125,705

Patents	8.8	39,373		(19,099)		20,274
Other	—	6,000		(5,875)		125
Total intangible assets		$	369,431	$	(223,128)	$	146,303

Amortization of intangible assets for the years ended December 31, 2024, 2023, and 2022 was $60.0 million, $81.1 million, and $132.3 million, respectively. We revised the useful lives of certain customer relationships, trademarks, domain names, and technology for the years ended December 31, 2024, 2023 and 2022, which resulted in a $3.2 million, $19.9 million, and $49.3 million increase to amortization expense for the respective years.

As of December 31, 2024, the estimated intangible asset amortization expense for the next five years and thereafter is as follows:


	Estimated Amortization
	(in thousands)
Year ending December 31,
2025	$	41,513
2026	20,299
2027	12,124
2028	4,343
2029	1,335
Thereafter	6,749
Total	$	86,363