Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Cash held for escrow and trust deposits	$ 11,824	$ 11,689
Like-kind exchange deposits and reverse exchange property	$ 76,037	$ 55,580

Like-kind exchange deposits and reverse exchange property

No definition available.

Name:	itic_LikeKindExchangeDepositsAndReverseExchangeProperty
Namespace Prefix:	itic_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant