Accounts receivable including unbilled amounts of major customer.

No definition available.

Name:	icge_AccountsReceivableIncludingUnbilledAmountsOfMajorCustomer
Namespace Prefix:	icge_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Expiry Period of Contingent Gains Associated with Outstanding Escrows

+ References

No definition available.

+ Details

Name:	icge_ExpiryPeriodOfContingentGainsAssociatedWithOutstandingEscrows
Namespace Prefix:	icge_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of Sources of Revenues

+ References

No definition available.

+ Details

Name:	icge_NumberOfSourcesOfRevenues
Namespace Prefix:	icge_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of direct or indirect voting interest owned.

+ References

No definition available.

+ Details

Name:	icge_PercentageOfDirectOrIndirectVotingInterestOwned
Namespace Prefix:	icge_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	instant

- Definition

Period Of Maintenance And Support

+ References

No definition available.

+ Details

Name:	icge_PeriodOfMaintenanceAndSupport
Namespace Prefix:	icge_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of days in operating period.

+ References

No definition available.

+ Details

Name:	icge_PeriodOfOperation
Namespace Prefix:	icge_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Proceeds From Escrow Deposit

+ References

No definition available.

+ Details

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

- Details

Name:	icge_SignificantAccountingPoliciesLineItems
Namespace Prefix:	icge_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares of stock remaining in escrow deposit from the sale of equity method or cost method investments.

+ References

No definition available.

+ Details

Name:	icge_StockRemainingSharesInEscrowDeposit
Namespace Prefix:	icge_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Unbilled Accounts Receivable

+ References

No definition available.

+ Details

Name:	icge_UnbilledAccountsReceivable
Namespace Prefix:	icge_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Value of Common Stock Shares Remaining in Escrow

+ References

No definition available.

+ Details

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

- Definition

Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.

+ References

No definition available.

+ Details

Name:	us-gaap_EntityWideRevenueMajorCustomerPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 159

-Paragraph 18

-Subparagraph f

-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 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

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 20

-Subparagraph a (1)

-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

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

Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended	12 Months Ended	6 Months Ended			6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2013	Mar. 31, 2012	Jun. 30, 2013 Bolt	Jun. 30, 2013 MSDSonline	Jun. 30, 2013 Minimum	Jun. 30, 2013 Maximum	Jun. 30, 2013 Channel Intelligence	Jun. 30, 2013 Zurich	Jun. 30, 2012 Zurich	Jun. 30, 2013 Zurich	Jun. 30, 2012 Zurich	Dec. 31, 2012 Zurich
Significant Accounting Policies [Line Items]
Percentage of direct or indirect voting interest owned	More than 50%
Equity method investment, ownership percentage					20.00%	50.00%
Period of operation available for MSDSonline		Two days
Maintenance and customer support fees, contract life			1 year
Number of sources of revenues				3
Expiry period of contingent gains associated with outstanding escrows	2 years
Value of shares of common stock remaining in escrow						$ 0.1
Number of shares of common stock remaining in escrow	11,650
Proceeds from escrow releases							7.9
Percentage of consolidated revenue								14.00%	22.00%	14.00%	15.00%
Accounts receivable including unbilled amounts of major customer								16.4		16.4		15.8
Unbilled accounts receivable of major customer								$ 12.1		$ 12.1		$ 12.4