Equity Method Investment, Shares Purchased

No definition available.

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- Definition

Variable Interest Entity, Percentage of the Product

+ References

No definition available.

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- Definition

Variable Interest Entity, Threshold Percentage of Fair Value

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No definition available.

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- Definition

Variable Interest Entity, Threshold Percentage of Fair Value that is No Less Than Internal Rate of Return

+ References

No definition available.

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- Definition

Variable Interest Entity, Threshold Period For Unremiedied Material Breach of the Joint Venture Agreement By The Other Party

+ References

No definition available.

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- Definition

Variable Interest Entity, Threshold Period of Trading Days That Purchase Price Per Share Will Be Equal To The Average Closing Price

+ References

No definition available.

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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

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

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- Definition

Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.19)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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- Definition

The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

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-Name Accounting Standards Codification
-Topic 480
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-Section S99
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- Definition

The aggregate fair value as of the reporting date of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
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- Definition

Redemption value, as if currently redeemable, of redeemable noncontrolling interest classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date.

+ References

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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

The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

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-Publisher FASB
-Name Accounting Standards Codification
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Investment in Joint Venture - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	May 31, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Apr. 30, 2018	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Redeemable noncontrolling interest		$ 41,950		$ 41,950			$ 0
Fair value adjustment of redeemable noncontrolling interest		(950)	$ 0	(950)	$ 0
Guardant Health AMEA, Inc
Schedule of Equity Method Investments [Line Items]
Payments to acquire interest in joint venture	$ 9,000
Equity method investment, shares purchased	40,000
Equity method investment, ownership percentage	50.00%					50.00%
Redeemable noncontrolling interest, fair value		41,000		41,000
Variable interest entity, assets		$ 49,500		$ 49,500
Threshold period for unremiedied material breach of the joint venture agreement by the other party				20 days
Threshold period of trading days that purchase price per share will be equal to the average closing price				20 days
Threshold percentage of fair value that is no less than internal rate of return				20.00%
Percentage of the product				40.00%
SoftBank \| Guardant Health AMEA, Inc
Schedule of Equity Method Investments [Line Items]
Payments to acquire interest in joint venture	$ 41,000
Equity method investment, shares purchased	40,000
Equity method investment, ownership percentage	50.00%
Redeemable noncontrolling interest, redemption value	$ 41,000
Threshold percentage of fair value (greater than)				40.00%