Goodwill is included in our Marketplace segment. The following table summarizes the changes in the carrying amount of our goodwill during the years ended December 31, 2024 and 2023 (in thousands):


	Goodwill – Net
Balance at January 1, 2023	$	715,258
2023 Acquisitions (Note 3)		230,091
Foreign currency translation adjustment		2,010
Balance at December 31, 2023		947,359
Vegas.com Acquisition (Note 3)		536
Foreign currency translation adjustment		(4,776	)
Balance at December 31, 2024	$	943,119

Goodwill is recorded net of impairment, for which we recognized $377.1 million of cumulative impairment charges as of December 31, 2024 and 2023.

The following tables summarize the carrying amount and weighted average remaining life (in years, if applicable) of our intangible assets at December 31, 2024 and 2023 (in thousands):


	December 31,			Weighted Average
	2024			Remaining Life
Definite-lived intangible assets
Supplier relationships	$	57,123			3.1
Customer relationships		34,620			2.0
Acquired developed technology		29,240			2.6
Capitalized development costs		46,293			1.6
Capitalized development costs – work in progress		6,839
Acquired Domain Name		17,348			15.4
Seat images		347			3.0
Foreign currency translation adjustment		(1,891	)
Total gross book value		189,919
Less: accumulated amortization
Supplier relationships		(16,048	)
Customer relationships		(14,053	)
Acquired developed technology		(10,025	)
Capitalized development costs		(27,325	)
Acquired Domain Name		(88	)
Seat images		(26	)
Foreign currency translation adjustment		357
Total accumulated amortization		(67,208	)
Indefinite-lived intangible assets
Trademarks		110,538
Foreign currency translation adjustment		(133	)
Intangible assets – net	$	233,116


	December 31,			Weighted Average
	2023			Remaining Life
Definite-lived intangible assets
Supplier relationships	$	57,123			4.1
Customer relationships		34,620		3.0
Acquired developed technology		29,240			3.6
Capitalized development costs		28,912			1.5
Capitalized development costs – work in progress		4,795
Foreign currency translation adjustment		1,315
Total gross book value		156,005
Less: accumulated amortization
Supplier relationships		(2,881	)
Customer relationships		(3,522	)
Acquired developed technology		(2,551	)
Capitalized development costs		(16,433	)
Foreign currency translation adjustment		(97	)
Total accumulated amortization		(25,484	)
Indefinite-lived intangible assets
Trademarks		110,538
Foreign currency translation adjustment		96
Intangible assets – net	$	241,155

Intangible assets are recorded net of accumulated amortization (for definite-lived components) and impairment (for indefinite-lived components). We recognized $78.7 million of cumulative impairment charges related to our trademarks as of December 31, 2024 and 2023.

On October 22, 2024, we acquired a domain name that we had previously licensed (the “Acquired Domain Name”). In exchange for the Acquired Domain Name, we are required to disburse monthly interest-free cash payments totaling $31.4 million through June 2040 (the “Acquired Domain Name Obligation”).

We account for the Acquired Domain Name as a definite-lived intangible asset under ASC Topic 350, Intangibles—Goodwill and Other. The acquisition cost of the Acquired Domain Name was $17.3 million, which will be amortized over a period of 15.6 years (the “Acquired Domain Name Term”). As of December 31, 2024, the Acquired Domain Name had a carrying value of $17.3 million, which is recorded in Intangible assets – net in the Consolidated Balance Sheets.

We account for the Acquired Domain Name Obligation as a liability for which we will accrue interest over the Acquired Domain Name Term at an effective interest rate of 8.6% per annum. As of December 31, 2024, the Acquired Domain Name Obligation had a carrying value of $17.2 million, $0.6 million of which is recorded in Accrued expenses and other current liabilities in the Consolidated Balance Sheets. The remaining $16.6 million is recorded in Other liabilities in the Consolidated Balance Sheets. During the year ended December 31, 2024, we incurred $0.2 million of interest for the Acquired Domain Name Obligation, which is recorded in Interest expense – net in the Consolidated Statements of Operations.

During the year ended December 31, 2024, our intangible assets increased primarily as a result of our investments in the Acquired Domain Name and other various capitalized development costs. Amortization expense on our definite-lived intangible assets was $42.4 million, $15.7 million, and $7.1 million for the years ended December 31, 2024, 2023, and 2022, respectively, which is recorded in Depreciation and amortization in the Consolidated Statements of Operations. During the years ended December 31, 2024, 2023, and 2022, we incurred losses of $0.2 million, $0.6 million, and $0.3 million, respectively, on asset disposals related to our definite-lived intangible assets, which are recorded in General and administrative expenses in the Consolidated Statements of Operations.

The estimated future amortization expense related to our definite-lived intangible assets (other than work in progress capitalized development costs) at December 31, 2024 is as follows (in thousands):


	Definite-Lived Intangible Assets
2025	$	41,753
2026		36,368
2027		19,916
2028		3,202
2029		780
Thereafter		13,853
Estimated future amortization expense	$	115,872