Income Taxes (Tables)

12 Months Ended

Jan. 31, 2021

Income Tax Disclosure [Abstract]

Summary of Loss before Income Taxes

Loss before income taxes consisted of the following for the periods indicated:

	Year Ended January 31,
	2021			2020			2019
	(in thousands)
U.S. operations	$	8		$	845		$	1,381
Non-U.S. operations		(57,311	)		(42,473	)		(35,933	)
Loss before income taxes	$	(57,303	)	$	(41,628	)	$	(34,552	)

Schedule of Income Tax Provision (Benefit)

Income tax provision (benefit) consisted of the following for the periods indicated:

	Year Ended January 31,
	2021			2020			2019
	(in thousands)
Current:
U.S. federal tax	$	1,705		$	1,440		$	1,290
U.S. state taxes		256			3			2
Non-U.S. foreign taxes		1,019			1,540			1,561
		2,980			2,983			2,853
Deferred:
U.S. federal tax		(432	)		182			(7,077	)
U.S. state taxes		—			—			—
Non-U.S. foreign taxes		(65	)		(1	)		119
		(497	)		181			(6,958	)
Provision (benefit) for income taxes	$	2,483		$	3,164		$	(4,105	)

Schedule of Reconciliation Between the Provision (Benefit) for Income Taxes at the Statutory Rate and the Effective Tax Rate

For purposes of the reconciliation between the provision (benefit) for income taxes at the statutory rate and the effective tax rate, a notional U.S. 21% rate is applied to pretax income (loss) as a result of the following for the periods indicated, respectively:

	Year Ended January 31,
	2021			2020			2019
	(in thousands)
Provision at U.S. notional statutory rate	$	(12,034	)	$	(8,742	)	$	(7,256	)
U.S. state taxes		212			3			2
Non-U.S. foreign tax differential		12,989			10,458			9,226
Stock-based compensation		4,943			4,172			4,715
U.S. R&D credit		(3,928	)		(3,109	)		(2,770	)
Valuation allowance		—			—			(7,990	)
Other		301			382			(32	)
Provision (benefit) for income taxes	$	2,483		$	3,164		$	(4,105	)

Schedule of Deferred Tax Assets and Liabilities

Temporary differences that gave rise to significant portions of the Company’s deferred tax assets and liabilities at January 31, 2021 and 2020 were as follows:  

	As of January 31,
	2021			2020
	(in thousands)
Deferred tax assets:
Federal and state credits	$	24,394		$	21,275
Expenses not currently deductible		939			593
Operating lease liabilities		2,144			2,023
Stock-based compensation		3,349			3,203
Foreign deferred		184			132
Gross deferred tax assets		31,010			27,226
Valuation allowance		(17,962	)		(14,670	)
Total deferred tax assets	$	13,048		$	12,556
Deferred tax liabilities
Property and equipment		(1,443	)		(1,469	)
Operating lease assets		(1,978	)		(1,974	)
Net deferred tax assets	$	9,627		$	9,113

Summary of Tax Valuation Allowance

Tax valuation allowance for the periods indicated below were as follows:

							Deductions
					Additions		Charged to
	Balance at		Additional		Charged to		Expenses			Balance at
	Beginning of		Charged to		Other		or Other			End of
	Period		Expenses		Account		Accounts			Period
	(in thousands)
Tax Valuation Allowance
Year ended January 31, 2021	$	14,670		3,292		—		—		$	17,962
Year ended January 31, 2020	$	12,526		2,144		—		—		$	14,670
Year ended January 31, 2019	$	18,538		1,978		—		(7,990	)	$	12,526

Schedule of Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits

The following table sets forth a reconciliation of the beginning and ending amount of unrecognized tax benefits:  

	Year Ended January 31,
	2021			2020			2019
	(in thousands)
Beginning balance:	$	42,695		$	37,531		$	34,117
Additions based on tax positions related to the    current year		3,360			4,964			3,922
Additions for tax positions of prior years		16			252			109
Reductions for tax positions in prior years		(12,483	)		—			(552	)
Settlements for prior periods		(6,087	)		—			—
Lapse of applicable statute of limitations		(245	)		(52	)		(65	)
Ending balance:	$	27,256		$	42,695		$	37,531