Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Cash flows from operating activities
Net loss	$ (215,639)	$ (171,097)	$ (114,979)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Share-based compensation expense	176,555	114,900	71,750
Depreciation and amortization	24,856	21,765	17,255
Net amortization of premiums (discounts) on investments	(2,768)	0	0
Amortization of deferred commission costs	47,093	43,680	30,691
Unrealized foreign currency (gain) loss	(1,198)	1,048	(161)
Loss on disposal of assets	779	0	268
Non-cash operating lease costs	18,914	14,905	11,924
Impairment of long-lived assets	1,544	0	0
Other, net	(1,208)	0	0
Changes in operating assets and liabilities:
Accounts receivable	(47,597)	(48,575)	(43,112)
Prepaid expenses and other current assets	(21,437)	(19,884)	(3,678)
Other long-term assets	(590)	467	(5,819)
Accounts payable	154	(1,331)	(4,915)
Other accrued liabilities	8,432	1,950	5,543
Accrued compensation and related benefits	3,739	19,906	5,811
Deferred commissions	(77,566)	(74,463)	(42,965)
Deferred revenue	123,853	110,664	60,534
Other long-term liabilities	89	(3,904)	3,904
Operating lease liabilities	(14,417)	(13,543)	(7,699)
Net cash provided by (used in) operating activities	23,588	(3,512)	(15,648)
Cash flows from investing activities
Purchases of short-term investments	(456,649)	0	0
Maturities of short-term investments	226,048	0	0
Proceeds from early termination of short-term investments	0	0	50,532
Purchases of long-term investments	0	(1,000)	0
Purchases of property and equipment	(6,137)	(10,563)	(4,176)
Proceeds from sale of property and equipment	217	0	1,250
Proceeds from liquidation of a long-term investment	622	0	0
Capitalized internal-use software development costs	(7,660)	(6,706)	(7,608)
Purchases of intangible assets	0	(31)	0
Payments for business acquisitions, net of cash and restricted cash acquired	(20,342)	0	(125,055)
Net cash used in investing activities	(263,901)	(18,300)	(85,057)
Cash flows from financing activities
Payments on principal of finance leases	0	0	(4,129)
Payments of deferred offering costs	0	0	(59)
Proceeds from exercise of stock options	5,633	19,132	17,373
Taxes paid related to net share settlement of restricted stock units	(4,177)	(6,171)	(2,150)
Proceeds from contributions to Employee Stock Purchase Plan	12,600	17,380	14,758
Net cash provided by financing activities	14,056	30,341	25,793
Effects of changes in foreign currency exchange rates on cash, cash equivalents, and restricted cash	334	(1,197)	471
Net increase (decrease) in cash, cash equivalents, and restricted cash	(225,923)	7,332	(74,441)
Cash, cash equivalents, and restricted cash at beginning of period	449,680	442,348	516,789
Cash, cash equivalents, and restricted cash at end of period	223,757	449,680	442,348
Supplemental disclosures
Cash paid for interest	0	0	114
Cash paid for income tax	551	196	168
Right-of-use assets obtained in exchange for new operating lease liabilities	7,230	994	35,415
Right-of-use assets reductions related to operating leases	4,696	0	0
Accrued purchases of property and equipment, including internal-use software	1,271	1,164	1,080
Share-based compensation capitalized in internal-use software development costs	3,359	1,970	1,986
Fair value of shares issued as consideration for acquisition	$ 0	$ 0	$ 25,872