Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jan. 31, 2022

Accounting Policies [Abstract]

Activity in Allowance for Doubtful Accounts

A summary of activity in the allowance for doubtful accounts is as follows:

	Fiscal Year Ended January 31,
	2020		2021		2022
Balance, beginning of period	$	123	$	—	$	88
Charged to (recovery of) bad debt expense	(105)		100		90
Other	(18)		(17)		(24)
Translation adjustments	—		5		(3)
Balance, end of period	$	—	$	88	$	151

Property, Plant and Equipment

The estimated useful lives by asset classification are generally as follows:

Asset Classification	Estimated Useful Life
Furniture and fixtures	3-7 years
Computers and equipment	3 years
Buildings	40 years
Leasehold improvements	Shorter of remaining life of the lease term or estimated useful life

Property and equipment, net consisted of the following:

	As of January 31,
	2021		2022
Furniture and fixtures	$	6,706	$	7,503
Computers and equipment	5,039		7,496
Buildings and land1	16,300		33,977
Leasehold improvements	11,581		14,111
Construction in progress2	277		13,081
	39,903		76,168
Less accumulated depreciation	(9,960)		(15,491)
	$	29,943	$	60,677

1The increase in buildings and land was due to the completion of a parking deck for $17.7 million, which is an addition to our existing headquarters, for which the Company is considered the owners for accounting purposes. See Note 15 "Commitments and Contingencies" for additional details including future commitments.

2The increase in construction in progress is primarily due to construction for an additional office building that is on the property of our existing headquarters for which the Company is considered the owners for accounting purposes. See Note 15 "Commitments and Contingencies" for additional details including future commitments.

The Company recognized depreciation expense as follows:

	Fiscal Year Ended January 31,
	2020		2021		2022
Cost of subscription revenues	$	186	$	268	$	337
Cost of professional services and other revenues	763		1,029		1,095
Sales and marketing	739		1,076		1,182
Research and development	835		1,347		1,842
General and administrative	338		506		643
Total depreciation expense	$	2,861	$	4,226	$	5,099

Property and equipment by geographic region were as follows:

	As of January 31,
	2021		2022
United States	$	29,235	$	60,034
International	708		643
	$	29,943	$	60,677