Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenue:
Revenue	$ 194,504	$ 144,363
Operating expenses:
Sales and marketing	55,953	44,079
Research and development	5,474	3,896
General and administrative	29,063	32,893
Amortization of intangible assets	893	1,051
Total operating expenses	238,675	201,074
Loss from operations	(44,171)	(56,711)
Interest expense, net	41,340	28,198
Other expenses (income), net	4,756	(1,692)
Loss before income taxes	(90,267)	(83,217)
Income tax (benefit) expense	(3,361)	8,203
Net loss	(86,906)	(91,420)
Net loss attributable to noncontrolling interests and redeemable noncontrolling interests	(73,044)	(119,452)
Net (loss) income attributable to common stockholders	$ (13,862)	$ 28,032
Net (loss) income per share attributable to common stockholders
Basic (in dollars per share)	$ (0.12)	$ 0.26
Diluted (in dollars per share)	$ (0.12)	$ 0.25
Weighted average shares used to compute net (loss) income per share attributable to common stockholders
Basic (in shares)	113,912	107,449
Diluted (in shares)	113,912	110,781
Customer agreements and incentives
Revenue:
Customer agreements and incentives	$ 99,850	$ 66,990
Operating expenses:
Costs	69,493	54,576
Solar energy systems and product sales
Revenue:
Revenue	94,654	77,373
Operating expenses:
Costs	$ 77,799	$ 64,579