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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Oct. 31, 2021	Apr. 30, 2021	Oct. 31, 2020	Apr. 30, 2020	Oct. 31, 2021	Oct. 31, 2020	Jan. 31, 2021
Operating activities:
Net loss	$ (24,926)	$ (17,631)	$ (22,041)	$ (29,224)	$ (70,149)	$ (76,381)	$ (94,692)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization expense					12,490	7,539
Bad debt expense					826	2,376
Stock-based compensation expense					54,455	53,889
Amortization of operating lease right-of-use assets					6,934	9,367
Other, net					506	589
Changes in operating assets and liabilities:
Accounts receivable					34,317	30,302
Prepaid expenses and other current assets					965	(5,023)
Costs to obtain revenue contracts					(8,654)	4,743
Other long term assets					43	(1,350)
Accounts payable, accrued expenses and other current liabilities					3,841	(7,192)
Unearned revenue					(39,423)	(49,592)
Operating lease liabilities					(4,041)	2,526
Other long term liabilities					615	4,485
Net cash used in operating activities					(7,275)	(23,722)
Investing activities:
Capital expenditures					(12,333)	(53,946)
Net cash used in investing activities					(12,333)	(53,946)
Financing activities:
Proceeds from exercise of stock options					15,869	13,145
Payments of deferred financing costs					(263)	(869)
Proceeds, net from employee stock purchase plan withholdings					4,059	4,811
Net cash provided by financing activities					19,665	17,087
Effect of exchange rate changes on cash and cash equivalents					(942)	1,401
Net decrease in cash and cash equivalents					(885)	(59,180)
Cash and cash equivalents at beginning of period		$ 230,411		$ 268,176	230,411	268,176	268,176
Cash and cash equivalents at end of period	$ 229,526		$ 208,996		$ 229,526	$ 208,996	$ 230,411

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