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Consolidated Statements Of Cash Flows (Parenthetical) (USD $)	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Consolidated Statements Of Cash Flows [Abstract]
Non cash net unrealized gain on investments, deferred tax provision	$ (198,953)	$ (896,219)

X

- Definition

The amount of deferred tax provision resulting from unrealized gains and losses during the period.

+ Details

Name:	itic_DeferredTaxProvisionRelatedToUnrealizedGainLossOnInvestments
Namespace Prefix:	itic
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_StatementOfCashFlowsAbstract
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration