Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues	$ 194,007	$ 156,699
Cost of revenue	139,356	136,768
Gross profit	54,651	19,931
Operating expenses:
Research and development	23,295	23,279
Sales and marketing	19,952	13,949
General and administrative	25,801	29,098
Total operating expenses	69,048	66,326
Loss from operations	(14,397)	(46,395)
Interest income	74	819
Interest expense	(14,731)	(20,754)
Interest expense - related parties	0	(1,366)
Other expense, net	(85)	(8)
Loss on extinguishment of debt	0	(14,098)
(Loss) gain on revaluation of embedded derivatives	(518)	284
Loss before income taxes	(29,657)	(81,518)
Income tax provision	124	124
Net loss	(29,781)	(81,642)
Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests	(4,892)	(5,693)
Net loss attributable to Class A and Class B common stockholders	$ (24,889)	$ (75,949)
Net loss per share attributable to Class A and Class B common stockholders, basic and diluted (in dollars per share)	$ (0.15)	$ (0.61)
Weighted average shares used to compute net loss per share available to Class A and Class B common stockholders, basic and diluted (in shares)	170,745	123,763
Product
Revenues	$ 137,930	$ 99,559
Cost of revenue	87,294	72,489
Installation
Revenues	2,659	16,618
Cost of revenue	4,625	20,779
Service
Revenues	36,417	25,147
Cost of revenue	36,118	30,970
Electricity
Revenues	17,001	15,375
Cost of revenue	$ 11,319	$ 12,530