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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ 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 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570

+ Details

Name:	us-gaap_EquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquireInterestInJointVenture
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Value of consideration received by the entity for collaboration

+ References

No definition available.

+ Details

Name:	xon_CollaborativeArrangementConsiderationReceivedValue
Namespace Prefix:	xon_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of additional capital contributions to the joint venture for which the entity is committed, maximum.

+ References

No definition available.

+ Details

Name:	xon_JointVentureAdditionalCapitalContributionsCommitted
Namespace Prefix:	xon_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	xon_ScheduleOfInvestmentsInJointVentureLineItems
Namespace Prefix:	xon_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_InvestorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=xon_IntrexonEnergyPartnersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=xon_IntrexonEnergyPartnersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Investments in Joint Ventures - Investment in Intrexon Energy Partners - Additional Information (Details) (USD $)	1 Months Ended
	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Schedule Of Investments In Joint Venture [Line Items]
Investment		$ 3,220,000us-gaap_EquityMethodInvestments	$ 6,284,000us-gaap_EquityMethodInvestments
Intrexon Energy Partners, LLC
Schedule Of Investments In Joint Venture [Line Items]
Company's ownership percentage	50.00%
Joint venture additional capital contributions committed		23,625,000
Investment		(740,000)
Investor \| Intrexon Energy Partners, LLC
Schedule Of Investments In Joint Venture [Line Items]
Company's ownership percentage	50.00%
Initial capital contribution	25,000,000
Maximum \| Intrexon Energy Partners, LLC
Schedule Of Investments In Joint Venture [Line Items]
Joint venture additional capital contributions committed	25,000,000
Maximum \| Investor \| Intrexon Energy Partners, LLC
Schedule Of Investments In Joint Venture [Line Items]
Joint venture additional capital contributions committed	25,000,000
Intrexon Energy Partners, LLC \| Upfront and Milestone Payments \| Upfront
Schedule Of Investments In Joint Venture [Line Items]
Collaborative arrangement consideration received, value	$ 25,000,000