Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Schedule of revenue from external customers

Revenues from external customers (including, but not limited to homeowners) for each group of similar products and services are as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Operating leases	$	47,034	$	32,980	$	82,096	$	58,307
Incentives	18,303		12,414		31,339		21,627
Operating leases and incentives	65,337		45,394		113,435		79,934
Solar energy systems	28,078		35,878		48,697		66,070
Products	44,433		41,266		79,833		75,277
Solar energy systems and product sales	72,511		77,144		128,530		141,347
Total revenue	$	137,848	$	122,538	$	241,965	$	221,281