Derivative right to purchase number of shares.

No definition available.

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- Definition

Derivative underlying shares strike price.

+ References

No definition available.

+ Details

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- Definition

Option premium.

+ References

No definition available.

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- Definition

Underlying derivative shares.

+ References

No definition available.

+ Details

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- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 30
-Article 5

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 20
-Section 55
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+ 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

Amount of decrease in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Number of shares of affiliates held for management investment companies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
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- Details

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Derivative Liability - Additional Information (Detail) - USD ($)		3 Months Ended	12 Months Ended
	Oct. 13, 2015	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Derivative [Line Items]
Common stock, par value			$ 0.0001	$ 0.0001
Loss on derivative liability			$ 3,360,000	$ 0	$ 0
Derivative liability			$ 5,520,000	$ 0
NantKwest [Member]
Derivative [Line Items]
Number of common shares held			5,600,000
Common stock, par value			$ 0.0001
Call Option [Member]
Derivative [Line Items]
Contractual option premium associated with option agreement			$ 0
Call Option [Member] \| Cambridge Equities LP [Member]
Derivative [Line Items]
Underlying maximum shares	2,000,000
Call Option [Member] \| Scenario Forecast [Member] \| Cambridge Equities LP [Member]
Derivative [Line Items]
Number of shares right to purchase		2,000,000
Strike price per share		$ 15.295