Our purchased intangible assets primarily include finite-lived customer relationships and trademarks/trade names. Customer relationships are amortized using an accelerated amortization method over the estimated useful life. Trademarks/trade names are amortized ratably over the estimated useful life.

The remaining weighted average amortization periods for unamortized purchased intangible assets are as follows as of December 31, 2024:



Customer relationships			12 years

Trademarks / Trade names			12 years

Our purchased intangible assets consisted of the following as of December 31, 2024:


	Gross		Accumulated Amortization		Net
Core technology	$	260	$	(260)	$	—

Customer relationships	211,077		(54,537)		156,540

Trademarks / Trade names	22,000		(4,436)		17,564
Total intangible assets	$	233,337	$	(59,233)	$	174,104

Our purchased intangible assets consisted of the following as of December 31, 2023:


	Gross		Accumulated Amortization		Net
Core technology	$	283	$	(269)	$	14
Customer backlog	22,000		(22,000)		—
Customer relationships	211,128		(34,913)		176,215
Trademarks / Trade names	22,000		(2,969)		19,031
Total intangible assets	$	255,411	$	(60,151)	$	195,260

The change in the gross value of our unamortized purchased intangible assets at December 31, 2024 from December 31, 2023 was primarily due to foreign currency translation.

Expected future amortization of purchased intangible assets is as follows:


For the years ended December 31:
2025	$	19,053
2026	17,426
2027	15,806
2028	14,902
2029	14,713
Thereafter	92,204
	$	174,104