XML 37 R40.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Fair Value Measurement Schedule Of Assumptions Used To Determine Fair Value (Details) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014
Fair Value Disclosures [Abstract] |  |
Cumulative probability of earning maximum rate until maturity | 0.00% | 0.00%
Cumulative probability of principle returned prior to maturity | 95.20% | 95.20%
Cumulative probability of default at some future point | 4.80% | 4.80%

X
- Definition Percentage of cumulative probability of default at some future point + References No definition available. + Details
Name: | itic_PercentageOfCumulativeProbabilityOfDefaultAtSomeFuturePoint
Namespace Prefix: | itic_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of cumulative probability of earning maximum rate until maturity + References No definition available. + Details
Name: | itic_PercentageOfCumulativeProbabilityOfEarningMaximumRateUntilMaturity
Namespace Prefix: | itic_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of cumulative probability of principle returned prior to maturity + References No definition available. + Details
Name: | itic_PercentageOfCumulativeProbabilityOfPrincipleReturnedPriorToMaturity
Namespace Prefix: | itic_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration