Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jan. 31, 2023

Accounting Policies [Abstract]

Schedule of Cash and Cash Equivalents

The reconciliation of cash, cash equivalents, and restricted cash to amounts presented in the consolidated statements of cash flows were as follows:

	January 31,
	2023		2022		2021
	(in thousands)
Cash and cash equivalents	$	264,162	$	315,235	$	145,491
Restricted cash	30,400		400		400
Total cash, cash equivalents, and restricted cash	$	294,562	$	315,635	$	145,891

Restrictions on Cash and Cash Equivalents

The reconciliation of cash, cash equivalents, and restricted cash to amounts presented in the consolidated statements of cash flows were as follows:

	January 31,
	2023		2022		2021
	(in thousands)
Cash and cash equivalents	$	264,162	$	315,235	$	145,491
Restricted cash	30,400		400		400
Total cash, cash equivalents, and restricted cash	$	294,562	$	315,635	$	145,891

Accounts Receivable, Allowance for Credit Loss

The change in the allowance for expected credit losses for the years ended January 31, 2023, 2022, and 2021 was as follows:

	Beginning Balance		Additions Charged To Expense		Write-offs		Ending Balance
	(in thousands)
Year ended January 31, 2023
Allowance for expected credit losses	$	5,584	$	6,353	$	(1,937)	$	10,000
Year ended January 31, 2022
Allowance for expected credit losses	$	2,000	$	3,835	$	(251)	$	5,584
Year ended January 31, 2021
Allowance for expected credit losses	$	2,000	$	121	$	(121)	$	2,000

Schedule of Property and Equipment, Net

Depreciation is computed using the straight-line method over the estimated useful lives of the respective assets, as follows:

	Useful Lives
Furniture and fixtures	3 to 5 years
Computers and software	3 to 5 years
Machinery and equipment	3 to 5 years
Tooling	3 to 5 years
Leasehold improvements	Shorter of the estimated lease term or useful life
Owned and operated systems	5 to 7 years

Property and equipment, net consisted of the following:

	January 31,
	2023		2022
	(in thousands)
Furniture and fixtures	$	1,244	$	903
Computers and software	7,164		6,147
Machinery and equipment	25,144		16,193
Tooling	13,782		10,572
Leasehold improvements	9,357		10,549
Owned and operated systems	24,119		22,546
Construction in progress	2,790		2,720
	83,600		69,630
Less: Accumulated depreciation	(43,554)		(35,037)
Total Property and Equipment, Net	$	40,046	$	34,593

The following table presents the depreciation expense related to fixed assets:

	Year ended January 31,
	2023		2022		2021
	(in thousands)
Depreciation Expense	$	13,404	$	11,840	$	10,083

Deferred Policy Acquisition Costs

Changes in the deferred contract acquisition costs during the years ended January 31, 2023 and 2022 were as follows:

	(in thousands)
Balance as of January 31, 2021	$	5,534
Capitalization of deferred contract acquisition costs	3,381
Amortization of deferred contract acquisition costs	(1,786)
Balance as of January 31, 2022	$	7,129
Capitalization of deferred contract acquisition costs	3,374
Amortization of deferred contract acquisition costs	(2,361)
Balance as of January 31, 2023	$	8,142

Deferred acquisition costs capitalized on the consolidated balance sheets were as follows:

	January 31
	2023		2022
	(in thousands)
Deferred contract acquisition costs, current	$	2,598	$	2,104
Deferred contract acquisition costs, noncurrent	5,544		5,025
Total deferred contract acquisition costs	$	8,142	$	7,129

Deferred Revenue, by Arrangement, Disclosure

The following table shows the total deferred revenue for each period presented.

	January 31, 2023		January 31, 2022
	(in thousands)
Total deferred revenue	$	198,610	$	146,808

The following table shows the revenue recognized that was included in the deferred revenue balance at the beginning of the period.

	Year Ended January 31,
	2023		2022		2021
	(in thousands)
Total deferred revenue recognized	$	77,142	$	40,934	$	39,400