Intangible assets other than goodwill consist of the following:


		March 31, 2026							December 31, 2025
(In thousands)	Amortization period	Gross amount		Accumulated amortization			Net		Gross amount		Accumulated amortization			Net
Software developed for internal use	5-10 years	$	89,469	$	(51,413	)	$	38,056	$	85,843	$	(48,704	)	$	37,139
Acquired intangible assets	10 years		2,317		(194	)		2,123		2,282		(157	)		2,125
Total		$	91,786	$	(51,607	)	$	40,179	$	88,125	$	(48,861	)	$	39,264

The gross carrying amount of software developed for internal use includes capitalized costs related to the design, development, and testing of internal-use software. These costs primarily consist of eligible personnel-related expenses, share-based compensation, and travel expenses incurred by relevant employees, and other directly attributable costs incurred during the application development stage. The gross carrying amount of acquired intangible assets reflects the acquisition cost of certain data assets for which the Company has obtained perpetual usage rights.

Amortization expenses of $2,746 and $2,500 were included in depreciation and amortization expense for the three months ended March 31, 2026 and 2025, respectively. As of March 31, 2026, intangible assets of $7,211, included in the gross carrying amounts of intangible assets, have not yet commenced amortization, as they are not ready for their intended use.

The Company capitalized costs of intangible assets of $3,661 and $3,991 during the three months ended March 31, 2026 and 2025, respectively.

As of March 31, 2026, estimated amortization expense related to the Company’s intangible assets for the remainder of 2026 through 2031 and thereafter is as follows:


(In thousands)
Year	March 31, 2026
Remainder of 2026	$	8,307
2027		10,177
2028		7,744
2029		5,781
2030		3,738
2031 and thereafter		4,432
Total	$	40,179