CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Revenues:
Revenues	$ 125,921	$ 95,139	$ 245,135	$ 176,483
Cost of revenues:
Cost of revenues	48,439	34,490	91,277	61,819
Gross profit	77,482	60,649	153,858	114,664
Operating expenses:
Research and development	30,212	23,364	56,931	44,378
Sales and marketing	50,488	39,820	96,627	73,430
General and administrative	28,705	20,269	37,849	37,467
Total operating expenses	109,405	83,453	191,407	155,275
Loss from operations	(31,923)	(22,804)	(37,549)	(40,611)
Interest expense	(20,223)	(8,511)	(32,512)	(11,686)
Interest income and other, net	4,759	1,479	8,087	2,403
Loss before benefit from income taxes	(47,387)	(29,836)	(61,974)	(49,894)
Benefit from income taxes	(4,271)	(9,842)	(4,042)	(9,432)
Net loss	$ (43,116)	$ (19,994)	$ (57,932)	$ (40,462)
Net loss per share attributable to common stockholders, basic and diluted	$ (0.64)	$ (0.32)	$ (0.87)	$ (0.66)
Weighted-average number of shares used in computing net loss per share attributable to common stockholders, basic and diluted	67,597	62,038	66,545	61,422
Subscription
Revenues:
Revenues	$ 111,581	$ 83,482	$ 217,316	$ 156,439
Cost of revenues:
Cost of revenues	33,805	22,062	62,807	39,465
Professional Services and Other
Revenues:
Revenues	14,340	11,657	27,819	20,044
Cost of revenues:
Cost of revenues	$ 14,634	$ 12,428	$ 28,470	$ 22,354