Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Revenue
Total revenue	$ 108,292	$ 56,121	$ 189,925	$ 96,631
Cost of revenue
Total cost of revenue	90,139	45,344	159,665	76,637
Gross profit	18,153	10,777	30,260	19,994
Operating expenses
Research and development	51,804	40,410	100,105	65,784
Sales and marketing	33,873	21,923	66,460	37,897
General and administrative	22,846	22,732	43,893	37,199
Total operating expenses	108,523	85,065	210,458	140,880
Loss from operations	(90,370)	(74,288)	(180,198)	(120,886)
Interest income	1,460	25	1,566	47
Interest expense	(2,928)	0	(3,862)	(1,499)
Change in fair value of contingent earnout liability	0	0	0	84,420
Transaction costs expensed	0	0	0	(7,031)
Other (expense) income, net	(1,254)	(189)	(1,702)	(174)
Net loss before income taxes	(93,092)	(84,873)	(184,220)	(2,546)
Provision for (benefit from) income taxes	(392)	65	(2,254)	103
Net loss	(92,700)	(84,938)	(181,966)	(2,649)
Cumulative dividends on redeemable convertible preferred stock	0	0	0	(4,292)
Deemed dividends attributable to vested option holders	0	0	0	(51,855)
Deemed dividends attributable to common stock warrant holders	0	0	0	(110,635)
Net loss attributable to common stockholders - Basic	(92,700)	(84,938)	(181,966)	(169,431)
Gain attributable to earnout shares issued	0	0	0	(84,420)
Change in fair value of dilutive warrants	0	(7,427)	0	(53,540)
Net loss attributable to common stockholders - Diluted	$ (92,700)	$ (92,365)	$ (181,966)	$ (307,391)
Weighted average shares outstanding - Basic (in shares)	336,813,555	312,227,526	335,736,772	266,197,482
Weighted average shares outstanding - Diluted (in shares)	336,813,555	313,602,100	335,736,772	275,577,000
Net loss per share - Basic (USD per share)	$ (0.28)	$ (0.27)	$ (0.54)	$ (0.64)
Net loss per share - Diluted (USD per share)	$ (0.28)	$ (0.29)	$ (0.54)	$ (1.12)
Redeemable convertible preferred stock warrant liability
Operating expenses
Change in fair value of warrant liabilities	$ 0	$ 0	$ 0	$ 9,237
Common Stock Warrant Liability
Operating expenses
Change in fair value of warrant liabilities	0	(10,421)	(24)	33,340
Networked charging systems
Revenue
Total revenue	84,148	40,874	143,699	67,674
Cost of revenue
Total cost of revenue	74,352	35,384	130,618	59,126
Subscriptions
Revenue
Total revenue	20,244	12,082	37,890	22,906
Cost of revenue
Total cost of revenue	13,278	7,830	23,905	13,470
Other
Revenue
Total revenue	3,900	3,165	8,336	6,051
Cost of revenue
Total cost of revenue	$ 2,509	$ 2,130	$ 5,142	$ 4,041