Intangible assets, net consisted of the following (amounts in thousands):


	September 30, 2024
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
Trade names	$	5,226	$	(1,711)	$	3,515
Software development	16,618		(7,623)		8,995
Customer relationships	2,020		(672)		1,348
Agent relationships	6,016		(2,469)		3,547
Know-how	430		(297)		133
	$	30,310	$	(12,773)	$	17,537


	December 31, 2023
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
Trade names	$	7,956	$	(2,058)	$	5,898
Software development	14,159		(5,517)		8,642
Customer relationships	8,180		(3,199)		4,981
Agent relationships	6,016		(1,825)		4,191
Know-how	430		(233)		197
	$	36,741	$	(12,832)	$	23,909

Estimated future amortization of intangible assets as of September 30, 2024 was as follows (amounts in thousands):


Years Ending December 31,
2024 (remaining)	$	1,197
2025	4,648
2026	4,091
2027	3,162
2028	2,095
Thereafter	2,344
Total	$	17,537

The aggregate amortization expense for intangible assets was $1.1 million and $1.3 million, of which $0.8 million and $0.7 million was included in technology and development expense, for the three months ended September 30, 2024 and 2023, respectively.

The aggregate amortization expense for intangible assets was $3.8 million and $4.0 million, of which $2.3 million and $2.1 million, respectively, was included in technology and development expense, for the nine months ended September 30, 2024 and 2023, respectively.