Business acquisition deferred cash payment.

No definition available.

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- Definition

Amount of business acquisition purchase price including redeemable noncontrolling interest.

+ References

No definition available.

+ Details

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Namespace Prefix:	icge_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Definition

Cost to acquire equity interests of a non-wholly owned subsidiary or partially owned entity from the noncontrolling interest holders.

+ References

No definition available.

+ Details

Name:	icge_CostToAcquireNoncontrollingInterest
Namespace Prefix:	icge_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Decreased equity ownership interest.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Deferred cash payment due on one year anniversary of transaction.

+ References

No definition available.

+ Details

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Namespace Prefix:	icge_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Deferred cash payment due on two year anniversary of transaction.

+ References

No definition available.

+ Details

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Namespace Prefix:	icge_
Data Type:	xbrli:monetaryItemType
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- Definition

The gain or loss recognized on the equity issuance or other equity transactions of a non-wholly won subsidiary or partially owned entity.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Increase decrease in additional paid in capital due to the purchase of noncontrolling interests in the period.

+ References

No definition available.

+ Details

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

- Definition

Percentage of additional interest acquired.

+ References

No definition available.

+ Details

Name:	icge_PercentageOfAdditionalInterestAcquired
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

+ References

+ Details

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

- Definition

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 99-12

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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

- Definition

Percentage of voting equity interests acquired in the business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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- Definition

Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

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

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 38

-Subparagraph c(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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

- Definition

The cash outflow associated with the purchase of noncontrolling interest during the period.

+ 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=6943989&loc=d3e3213-108585

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 17

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Consolidated Core Companies (Details Textual) (USD $) In Millions, unless otherwise specified	6 Months Ended			2 Months Ended				6 Months Ended
	Jun. 30, 2012	Mar. 30, 2012	Jun. 29, 2012 Procurian [Member]	Aug. 31, 2012 ICG Group, Inc [Member]	Jul. 31, 2012 ICG Group, Inc [Member]	Mar. 30, 2012 MSDSonline [Member]	Jul. 31, 2012 Utilities Analyses Inc [Member]	Jun. 30, 2012 Procurian [Member]	Jun. 29, 2012 Procurian [Member]
Consolidated core companies (Textual) [Abstract]
Equity Acquired		96.00%			52.00%	96.00%
Total Acquisition price			$ 11.5
Deferred cash payment			2.0
Deferred cash payment due on one year anniversary of the transaction			1.0
Deferred cash payment due on two year anniversary of the transaction			1.0
Common shares purchased			4.0
Additional equity ownership interest								1.00%
Purchase price of equity ownership interest								1.5
Decrease in controlling interest	0.4
Dilution loss								1.1
Additional equity ownership acquired				2.4
Decrease in additional paid in capital	1.1
Equity ownership in Procurian before decrease			80.00%
Equity ownership in Procurian									81.00%
Cash paid for acquisition							$ 6.7