Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of Stock-Based Compensation Expense (Details)

v3.19.3
Stock-Based Compensation - Summary of Stock-Based Compensation Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Compensation expense recognized $ 6,854 $ 5,741 $ 19,420 $ 21,982
Cost of customer agreements and incentives        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Compensation expense recognized 594 648 1,849 1,926
Cost of solar energy systems and product sales        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Compensation expense recognized 209 188 566 545
Sales and marketing        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Compensation expense recognized 1,352 1,102 3,782 6,086
Research and development        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Compensation expense recognized 404 313 1,149 918
General and administration        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Compensation expense recognized $ 4,295 $ 3,490 $ 12,074 $ 12,507