Litigation Settlement, Number of Shares Returned from Escrow

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- Definition

Settlement Agreement, Deemed Aggregate Payment

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Total Grant Date Fair Value

+ References

No definition available.

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- Definition

Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

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- Definition

The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ 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 210.5-03.4)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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- Definition

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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- Definition

Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.

+ References

No definition available.

+ Details

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- Definition

Expenditures for salaries for officers and non-officers. Does not include allocated share-based compensation, pension and post-retirement benefit expense or other labor-related non-salary expense. For commercial and industrial companies, excludes any direct and overhead labor that is included in cost of goods sold.

+ References

No definition available.

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- Definition

Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor.

+ References

No definition available.

+ Details

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

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Related Parties - Agreements with TerraForm Power and Renova (Details) - USD ($)			1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 29, 2017	May 26, 2017	Dec. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
General and administrative				$ 20,366,000	$ 14,225,000	$ 39,335,000	$ 24,409,000
Immediate family member of management \| Retention payment
Related Party Transaction [Line Items]
Grant date fair value of shares issued									$ 63,400
Immediate family member of management \| Base salary
Related Party Transaction [Line Items]
Base salary			$ 260,000
TerraForm Power \| Use and occupancy agreement
Related Party Transaction [Line Items]
Expenses from transactions with related parties						400,000
TerraForm Power \| Service contracts For ERP and IT Systems
Related Party Transaction [Line Items]
Expenses from transactions with related parties						0
Capitalized computer software			$ 400,000	$ 700,000		700,000			400,000
General and administrative - affiliate						100,000			100,000
TerraForm Power \| Management services agreement
Related Party Transaction [Line Items]
Expenses from transactions with related parties						$ 700,000
TerraForm Power \| Scenario, forecast \| Use and occupancy agreement
Related Party Transaction [Line Items]
Expenses from transactions with related parties								$ 800,000
Renova arbitration
Related Party Transaction [Line Items]
Amount awarded to other party	$ 15,000,000
Litigation settlement, number of shares returned from escrow (in shares)	792,495
Pending litigation \| Renova arbitration
Related Party Transaction [Line Items]
Amount awarded to other party		$ 15,000,000
General and administrative									$ 3,800,000
Positive outcome of litigation \| Renova arbitration
Related Party Transaction [Line Items]
Litigation settlement, number of shares returned from escrow (in shares)	792,495	792,495
Renova \| Brookfield affiliate
Related Party Transaction [Line Items]
Settlement aggregate payment amount		$ 0
Number of company shares sold in settlement agreement (in shares)		19,535,004
Shares purchase price (in dollars per share)		$ 4.75
Consideration received for shares sold		$ 92,791,269