Percentage of cash flow distributions to members.

No definition available.

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- Definition

The decrease of net assets after tax equity transactions.

+ References

No definition available.

+ Details

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Balance Type:	debit
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 35
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=114001220&loc=d3e32787-111569

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Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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Balance Type:	na
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- Definition

Amount of gain (loss) on sale or disposal of an equity method investment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(7)(c))
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(9)(a))
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow from the amount invested for projects in hopes of getting a future return or interest from it.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

+ Details

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Balance Type:	credit
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- Definition

The cash inflow from the sale of investment projects held by an entity in hopes of getting a future return or interest from it.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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INVESTMENTS IN AFFILIATES - Tax equity transactions (Details) - USD ($) $ in Thousands	1 Months Ended					12 Months Ended
	Dec. 31, 2018	Oct. 31, 2018	Dec. 31, 2015	Oct. 31, 2015	Aug. 31, 2015	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2015
Tax equity transactions
Payment received recognized as revenue						$ 47,102
Class A membership interests
Tax equity transactions
Receipt of future cash flow distributions (as a percent)	51.00%					51.00%
Class B membership interests
Tax equity transactions
Receipt of future cash flow distributions (as a percent)	49.00%					49.00%
Value wrote down	$ 5,000
Tranquillity, Garland, and Roserock
Tax equity transactions
Payment received recognized as revenue								$ 190,400
Tranquillity, Garland, and Roserock \| Class A membership interests
Tax equity transactions
Further contribution						$ 5,908,000	$ 0
Tranquillity, Garland, and Roserock \| Class B membership interests
Tax equity transactions
Percentage of interest sold		100.00%
Tranquillity
Tax equity transactions
Ownership percentage							49.00%
Net assets derecognized								93,900
Tranquillity \| Class A membership interests
Tax equity transactions
Percentage of interest sold					100.00%
Proceeds from sale of membership interest					$ 100,000
Tranquillity \| Class B membership interests
Tax equity transactions
Ownership percentage					100.00%
Garland
Tax equity transactions
Ownership percentage							49.00%
Net assets derecognized								56,400
Silverlake \| Class A membership interests
Tax equity transactions
Percentage of interest sold				100.00%
Proceeds from sale of membership interest				$ 49,000
Silverlake \| Class B membership interests
Tax equity transactions
Ownership percentage				100.00%
Roserock
Tax equity transactions
Ownership percentage	49.00%					49.00%	49.00%
Net assets derecognized								$ 23,500
Roserock \| Class A membership interests
Tax equity transactions
Percentage of interest sold			100.00%
Proceeds from sale of membership interest			$ 45,000
Roserock \| Class B membership interests
Tax equity transactions
Ownership percentage			100.00%					100.00%