Convertible and Long-term Debt Obligations - MyPower Revolving Credit Facility - Additional Information (Detail) - SolarCity [Member] - Non-recourse debt [Member] - MyPower Revolving Credit Facility [Member] - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 16, 2015 |
Dec. 31, 2016 |
Jan. 09, 2015 |
|
| Class A [Member] | |||
| Debt Instrument [Line Items] | |||
| Interest Rate | 2.50% | ||
| Class B [Member] | |||
| Debt Instrument [Line Items] | |||
| Basis interest rate on remaining amount | 3.00% | ||
| Revolving Credit Facility [Member] | |||
| Debt Instrument [Line Items] | |||
| Maximum amount to be borrowed | $ 200,000,000 | ||
| Credit facility interest rate terms | The Class A notes bear interest at an annual rate of (i) for the first $160.0 million, 2.50% and (ii) for the remaining $40.0 million, 3.00%; in each case, plus (a) the commercial paper rate or (b) 1.50% plus adjusted LIBOR. The Class B notes bear interest at an annual rate of 5.00% plus LIBOR. | ||
| Revolving Credit Facility [Member] | Class A [Member] | |||
| Debt Instrument [Line Items] | |||
| Credit facility interest rate terms | The fee for undrawn commitments under the Class A notes is 0.50% per annum for the first $160.0 million of undrawn commitments and 0.75% per annum for the remaining $40.0 million of undrawn commitments | ||
| Principal amount of convertible senior notes | 160,000,000 | ||
| Line of credit, fee for undrawn commitments | 0.50% | ||
| Revolving Credit Facility [Member] | Class B [Member] | |||
| Debt Instrument [Line Items] | |||
| Credit facility interest rate terms | The fee for undrawn commitments under the Class B notes is 0.50% per annum. | ||
| Principal amount of convertible senior notes | $ 40,000,000 | ||
| Line of credit, additional interest rate | 5.00% | ||
| Line of credit, fee for undrawn commitments | 0.75% | ||
| Revolving Credit Facility [Member] | LIBOR [Member] | |||
| Debt Instrument [Line Items] | |||
| Line of credit, additional interest rate | 1.50% |