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Intangible Assets, net

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

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


	As of December 31, 2022
	Remaining Weighted average useful life (in years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Customer relationships	4.8	$	17,841	$	9,300	$	8,541
Developed technology	3.2	16,813		6,689		10,124
Trade names	1.3	503		383		120
Assembled workforce	2.8	125		10		115
Total intangible assets		$	35,282	$	16,382	$	18,900


	As of December 31, 2021
	Remaining Weighted average useful life (in years)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Customer relationships	5.7	$	19,163	$	8,470	$	10,693
Developed technology	4.8	10,605		5,487		5,118
Trade names	2.3	520		300		220
Total intangible assets		$	30,288	$	14,257	$	16,031

As discussed in Note 5, we acquired Revv in October 2022, UA Services in August 2022 and Earth Class Mail in November 2021. In 2022, 2021 and 2020, we recorded amortization expense of $3.5 million, $1.0 million and $2.8 million, respectively.

At December 31, 2022, estimated future intangible assets amortization expense was as follows (in thousands):


For Years Ending December 31,
2023	$	5,165
2024	5,082
2025	4,510
2026	2,670
2027	1,473
Total future amortization expense	$	18,900