Consolidated Statements Of Cash Flows (Parenthetical) (USD $)	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Consolidated Statements Of Cash Flows [Abstract]
Non cash net unrealized gain on investments, deferred tax provision	$ (1,144,006)	$ (198,953)

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

No definition available.

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