The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions				6 Months Ended	12 Months Ended
	Jun. 10, 2017	Apr. 11, 2017	Mar. 21, 2017	Jun. 30, 2017	Dec. 31, 2016	Apr. 18, 2017
Zero-coupon Convertible Senior Notes due in 2020 [Member] \| Recourse debt [Member]
Related Party Transaction [Line Items]
Debt instrument interest rate				0.00%	0.00%
Debt instrument maturity date				Dec. 31, 2020	Dec. 31, 2020
Zero-coupon Convertible Senior Notes due in 2020 [Member] \| Chief Executive Officer [Member] \| Recourse debt [Member]
Related Party Transaction [Line Items]
Principal amount of convertible senior notes						$ 10.0
SpaceX [Member] \| Solar bonds due in June 2017 [Member]
Related Party Transaction [Line Items]
Current portion of solar bonds issued to related parties	$ 75.0
Debt instrument interest rate	4.40%
Debt instrument maturity date	Jun. 10, 2017
SpaceX [Member] \| Solar bonds due in March 2017 [Member]
Related Party Transaction [Line Items]
Current portion of solar bonds issued to related parties			$ 90.0
Debt instrument interest rate			4.40%
Debt instrument maturity date			Mar. 21, 2017
Chief Executive Officer, SolarCity's Former Chief Executive Officer and SolarCity's Fomer Chief Technology Officer [Member] \| Solar bonds due in February 2018 [Member]
Related Party Transaction [Line Items]
Debt instrument interest rate		6.50%
Debt instrument maturity date		Feb. 28, 2018
Convertible principal amount		$ 100.0