XML 18 R70.htm IDEA: XBRL DOCUMENT v2.4.1.9
Earnings Per Common Share and Share Awards Schedule of Weighted Average Grant Date Fair Value of Stock Awards Plans (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Earnings Per Share [Abstract]      
Weighted-average market price $ 68.70itic_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageMarketPrice $ 71.59itic_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageMarketPrice $ 50.50itic_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageMarketPrice
Weighted-average grant-date fair value $ 28.98itic_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageGrantDateFairValue $ 27.55itic_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageGrantDateFairValue $ 18.84itic_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageGrantDateFairValue