Prepaid expenses and other current assets consisted of the following (in thousands):

	January 31,
	2019		2018
Prepaid expenses	$	10,986	$	8,494
Other current assets		3,237		2,897
Total prepaid expenses and other current assets	$	14,223	$	11,391

	January 31,
	2019			2018
Servers and related equipment	$	215,626		$	170,422
Leasehold improvements		76,888			72,599
Computer hardware and software		20,614			14,558
Furniture and fixtures		13,661			14,254
Construction in progress		9,737			7,348
Total property and equipment		336,526			279,181
Less: accumulated depreciation		(198,823	)		(155,204	)
Total property and equipment, net	$	137,703		$	123,977

As of January 31, 2019, the gross carrying amount of property and equipment includes $120.0 million of servers and $8.8 million of construction in progress acquired under capital leases, and the accumulated depreciation of property and equipment acquired under these capital leases was $54.5 million. As of January 31, 2018, the gross carrying amount of property and equipment includes $74.7 million of servers and related equipment and $3.7 million of construction in progress acquired under capital leases, and the accumulated depreciation of property and equipment acquired under these capital leases was $29.1 million.

Depreciation expense related to property and equipment was $46.3 million, $39.5 million and $36.8 million for the fiscal years ended January 31, 2019, 2018 and 2017, respectively. Included in these amounts were depreciation expense for servers acquired under capital leases in the amount of $26.3 million, $18.8 million and $7.9 million, for the same periods respectively. Construction in progress primarily consists of servers and networking equipment and storage infrastructure being provisioned in our data center facilities. In addition, the amounts of interest capitalized to property and equipment were not material for all periods presented.

	January 31,
	2019		2018
Deposits, noncurrent	$	2,674	$	2,934
Other assets, noncurrent		8,372		2,469
Other long-term assets	$	11,046	$	5,403

As of January 31, 2019, we capitalized $3.5 million in qualifying costs to develop software for internal use associated with the development of additional significant features and functionality to our products as part of other long-term assets. Included in this $3.5 million is $0.8 million in capitalized stock-based compensation expense. There were no material qualifying costs as of January 31, 2018. The amortization of the capitalized costs is not material for any of the periods presented. We have not recorded any related impairment charges during the periods presented.

As of January 31, 2019, we capitalized $1.8 million in qualifying implementation costs incurred in a hosting arrangement that is a service contract, which is presented as an other asset. There were no material qualifying costs capitalized as of January 31, 2018. The amortization of the capitalized implementation cost is not material for any of the periods presented. We have not recorded any related impairment charges during the periods presented.