	September 30, 2019			March 31, 2019
Gross carrying amount	$	68,879		$	59,782
Accumulated amortization		(29,803	)		(21,927	)
Net capitalized software costs	$	39,076		$	37,855

Amortization expense related to capitalized software costs was $4,555 and $2,635 for the three months ended September 30, 2019 and 2018, respectively, and is recorded as cost of revenue in the condensed consolidated statements of comprehensive income.

Amortization expense related to capitalized software costs was $8,680 and $4,892 for the six months ended September 30, 2019 and 2018, respectively.

The following table presents the remaining estimated amortization of capitalized software costs as of September 30, 2019. The estimated amortization is comprised of (i) amortization of released products and (ii) the expected amortization for products that are not yet available for sale based on their estimated economic lives and projected general release dates.

For the year ended March 31,
2020 (remaining six months)	$	11,100
2021		16,900
2022		8,400
2023		2,676
Total	$	39,076