Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the nine months ended September 30, 2021 were as follows:

(in thousands)
Goodwill as of December 31, 2020	$	831,800
Foreign currency translation adjustment		(1,121	)
Goodwill as of September 30, 2021	$	830,679

Summary of Intangible Assets

Intangible assets, net consisted of the following for the periods presented:

			December 31, 2020							September 30, 2021
(dollars in thousands)	Estimated Useful Lives		Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Customer lists		7 - 17 years	$	451,853	$	(269,989	)	$	181,864	$	450,979	$	(295,584	)	$	155,395
Trademarks		4 - 16 years		75,562		(26,855	)		48,707		75,302		(30,408	)		44,894
Technology		3 - 7 years		215,686		(155,309	)		60,377		227,147		(182,177	)		44,970
Domain names		3 - 15 years		10,118		(3,333	)		6,785		10,118		(3,840	)		6,278
Favorable leases		4 - 14 years		4,940		(2,129	)		2,811		4,940		(2,376	)		2,564
			$	758,159	$	(457,615	)	$	300,544	$	768,486	$	(514,385	)	$	254,101

Summary of Estimated Future Amortization Expense

The following is a schedule of estimated future amortization expense as of September 30, 2021:

(in thousands)
Year Ending December 31,
2021	$	19,608
2022		58,541
2023		39,884
2024		31,176
2025		24,711
Thereafter		80,181
	$	254,101