Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 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 years ended December 31, 2020 and 2021 were as follows:

(in thousands)
Goodwill at December 31, 2019	$	830,252
Foreign currency translation adjustment	1,548
Goodwill at December 31, 2020	831,800
Foreign currency translation adjustment	(985)
Acquisition of EBI	21,721
Goodwill at December 31, 2021	$	852,536

Summary of Intangible Assets

Intangible assets, net consisted of the following as of December 31, 2020 and 2021:

		December 31, 2020						December 31, 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	$	507,087	$	(304,855)	$	202,232
Trademarks	4 - 16 years	75,562		(26,855)		48,707		77,434		(31,685)		45,749
Non-compete agreement	1 - 4 years	2,442		(2,442)		—		3,191		(2,462)		729
Technology	3 - 7 years	215,686		(155,309)		60,377		231,165		(191,320)		39,845
Domain names	3 - 15 years	10,118		(3,333)		6,785		10,118		(4,009)		6,109
Favorable leases	4 - 14 years	4,940		(2,129)		2,811		4,940		(2,458)		2,482
		$	760,601	$	(460,057)	$	300,544	$	833,935	$	(536,789)	$	297,146

Summary of Estimated Future Amortization Expense

Estimated amortization expense is as follows for each of the next five years:

(in thousands)
Year Ending December 31,
2022	$	67,669
2023	48,476
2024	39,304
2025	30,735
2026	26,677
Thereafter	84,285
	$	297,146