Segment Reporting and Information about Geographic Areas - Schedule of Total Revenues and Gross Margin by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Revenue Reconciling Item [Line Items]
Revenues	$ 2,984,675	$ 2,298,436	$ 8,470,502	$ 4,715,501
Gross profit	449,140	636,735	1,783,701	1,163,979
Automotive Segment [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Revenues	2,667,170	2,275,102	7,652,273	4,665,492
Gross profit	368,923	637,682	1,558,295	1,164,523
Energy Generation and Storage Segment [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Revenues	317,505	23,334	818,229	50,009
Gross profit	$ 80,217	$ (947)	$ 225,406	$ (544)

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1,2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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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.

+ References

No definition available.

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