Capitalized software development costs, net consisted of the following (in thousands):


	Gross carrying amount		Amortization period	Accumulated amortization			Net carrying amount
As of December 31, 2023	$	64,860	3 years	$	(33,230	)	$	31,630
As of December 31, 2022	$	92,115	3 years	$	(64,745	)	$	27,370

The Company capitalized software development costs of $20.6 million, $17.1 million and $15.3 million during the years ended December 31, 2023, 2022 and 2021, respectively.

Amortized expense for capitalized software development costs was $16.3 million, $12.5 million and $9.0 million during the years ended December 31, 2023, 2022 and 2021, respectively. Amortization of capitalized software development costs is classified within cost of revenue in the consolidated statements of operations and comprehensive loss. During the year ended December 31, 2023, the Company retired $47.9 million of fully amortized capitalized software development assets.

The expected amortization of capitalized software development costs, as of December 31, 2023, for each of the next three years is as follows (in thousands):


2024	$	15,322
2025		10,654
2026		5,654
	$	31,630