Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2018

Related Party Transactions [Abstract]

Summary of Related Party Balances

Related party balances were comprised of the following (in thousands):

	September 30, 2018		December 31, 2017
Solar Bonds issued to related parties	$	100	$	100
Convertible senior notes due to related parties	$	3,000	$	3,000
Promissory notes due to related parties	$	—	$	100,000
Due to related parties (primarily accrued interest, included in accrued    liabilities and other)	$	239	$	2,509