Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Revenue (related party amounts of $11,209 and $11,827 for the three months ended June 30, 2021 and 2020, respectively)	$ 59,239	$ 48,057
Cost of revenue (related party amounts of $448 and $412 for the three months ended June 30, 2021 and 2020, respectively)	28,542	25,563
Gross profit	30,697	22,494
Operating expenses:
Research and development (related party amounts of $6,022 and $1,818 for the three months ended June 30, 2021 and 2020, respectively)	44,232	34,370
Sales and marketing	15,419	10,655
General and administrative	12,596	14,191
Total operating expenses	72,247	59,216
Loss from operations	(41,550)	(36,722)
Interest income	44	74
Other (expense) income, net	(520)	878
Net and comprehensive loss	$ (42,026)	$ (35,770)
Net loss per share of Class A and Class B common stock attributable to common stockholders
Basic and diluted	$ (0.25)	$ (0.38)
Weighted-average shares used to compute net loss per share, basic and diluted
Basic and diluted	168,191,762	93,577,307