Intangible Assets. Intangible assets include customer relationships, non-compete agreements, trade names, technology, patents, and other intangibles associated with various business and asset acquisitions. These acquired intangible assets were recorded at fair value determined as of the date of acquisition and are being amortized over the period we expect to benefit from the assets.

A summary of intangible assets as of March 31, 2025 and December 31, 2024 is as follows.


	March 31, 2025
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	$	145,966	$	(50,052	)	$	95,914
Non-compete agreements		500		(411	)		89
Trade names		18,280		(9,537	)		8,743
Technology, Patents, and Other		26,133		(26,133	)		—
Total	$	190,879	$	(86,133	)	$	104,746

	December 31, 2024
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	$	145,966	$	(46,693	)	$	99,273
Non-compete agreements		500		(393	)		107
Trade names		18,280		(9,297	)		8,983
Technology, Patents, and Other		26,133		(26,133	)		—
Total	$	190,879	$	(82,516	)	$	108,363

Amortization expense on intangible assets was $3.6 million and $2.0 million for the three months ended March 31, 2025 and 2024, respectively.

Goodwill. The following table presents a roll-forward of goodwill for the periods ended March 31, 2025 and December 31, 2024:


(in thousands)	Goodwill, Gross			Accumulated Impairment			Goodwill, Net
Balance at December 31, 2023	$	94,436		$	(70,504	)	$	23,932
Additions - DWS Acquisition		36,244			—			36,244
Balance at December 31, 2024	$	130,680		$	(70,504	)	$	60,176
Additions - SCF Acquisition		15,402			—			15,402
Foreign currency translation adjustment		(10	)		—			(10	)
Balance at March 31, 2025	$	146,072		$	(70,504	)	$	75,568

Impairment. We analyzed definite lived intangible assets for impairment as of March 31, 2025 and December 31, 2024, in accordance with Accounting Standards Codification Topic 360, Property, Plant, and Equipment ("ASC 360"), noting no impairment indicators were present. We analyzed goodwill for impairment as of March 31, 2025 and December 31, 2024, in accordance with Accounting Standards Codification Topic 350, Intangibles—Goodwill and Other ("ASC 350"), noting no impairment indicators were present. For our annual goodwill impairment test as of December 31, 2024, we performed a qualitative assessment to determine if it was more likely than not (that is, a likelihood of more than 50 percent) that the fair value of our reporting unit was less than its carrying value as of the test date, for which we determined that it was not. We evaluated events and circumstances since the date of our last quantitative or qualitative assessment, including macroeconomic conditions, industry and market conditions, and our overall financial performance, and it was determined that no changes in circumstances indicated that a potential impairment of Goodwill had occurred. Therefore, no impairment charges were recorded related to goodwill for the period ended March 31, 2025. We will continue to evaluate our goodwill and definite lived assets for potential triggering events as conditions warrant.