XML 17 R46.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Investments In Securities (Schedule Of Gross Unrealized Gains And Losses And Amortized Cost For Securities) (Details) (USD $) | Mar. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | $ 101,229,832 us-gaap_AvailableForSaleSecuritiesAmortizedCost | $ 104,421,050 us-gaap_AvailableForSaleSecuritiesAmortizedCost
General Obligations Of U.S. States, Territories And Political Subdivisions |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 33,121,352 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember | 35,215,247 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
Available For Sale Securities Gross Unrealized Gain Accumulated In Investments | 1,472,862 itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember | 1,527,794 itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
Available For Sale Securities Gross Unrealized Loss Accumulated In Investments | 25,389 itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember | 19,542 itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
Available-for-sale, at fair value, Estimated Fair Value | 34,568,825 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember | 36,723,499 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USStatesAndPoliticalSubdivisionsMember
Special Revenue Obligations Of U.S. States, Territories And Political Subdivisions |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 46,113,735 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_IssuerObligationsOfUSStatesTerritoriesAndPoliticalSubdivisionsSpecialRevenueMember | 46,707,033 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_IssuerObligationsOfUSStatesTerritoriesAndPoliticalSubdivisionsSpecialRevenueMember
Available For Sale Securities Gross Unrealized Gain Accumulated In Investments | 2,527,991 itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_IssuerObligationsOfUSStatesTerritoriesAndPoliticalSubdivisionsSpecialRevenueMember | 2,405,725 itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_IssuerObligationsOfUSStatesTerritoriesAndPoliticalSubdivisionsSpecialRevenueMember
Available For Sale Securities Gross Unrealized Loss Accumulated In Investments | 30,085 itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_IssuerObligationsOfUSStatesTerritoriesAndPoliticalSubdivisionsSpecialRevenueMember | 55,502 itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_IssuerObligationsOfUSStatesTerritoriesAndPoliticalSubdivisionsSpecialRevenueMember
Available-for-sale, at fair value, Estimated Fair Value | 48,611,641 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_IssuerObligationsOfUSStatesTerritoriesAndPoliticalSubdivisionsSpecialRevenueMember | 49,057,256 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_IssuerObligationsOfUSStatesTerritoriesAndPoliticalSubdivisionsSpecialRevenueMember
Number of Special Revenue Bonds | 50 itic_NumberofSpecialRevenueBonds / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_IssuerObligationsOfUSStatesTerritoriesAndPoliticalSubdivisionsSpecialRevenueMember |
Corporate Debt Securities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 21,072,010 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember | 21,576,641 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember
Available For Sale Securities Gross Unrealized Gain Accumulated In Investments | 940,769 itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember | 823,133 itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember
Available For Sale Securities Gross Unrealized Loss Accumulated In Investments | 0 itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember | 71,339 itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember
Available-for-sale, at fair value, Estimated Fair Value | 22,012,779 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember | 22,328,435 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember
Auction Rate Securities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 922,735 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember | 922,129 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember
Available For Sale Securities Gross Unrealized Gain Accumulated In Investments | 18,465 itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember | 16,971 itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember
Available For Sale Securities Gross Unrealized Loss Accumulated In Investments | 0 itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember | 0 itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember
Available-for-sale, at fair value, Estimated Fair Value | 941,200 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember | 939,100 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember
Total Fixed Maturities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 101,229,832 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember | 104,421,050 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Available For Sale Securities Gross Unrealized Gain Accumulated In Investments | 4,960,087 itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember | 4,773,623 itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Available For Sale Securities Gross Unrealized Loss Accumulated In Investments | 55,474 itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember | 146,383 itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Available-for-sale, at fair value, Estimated Fair Value | 106,134,445 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember | 109,048,290 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_DebtSecuritiesMember
Common Stocks And Nonredeemable Preferred Stocks |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 24,349,105 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CommonStocksAndNonredeemablePreferredStocksMember | 24,128,753 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CommonStocksAndNonredeemablePreferredStocksMember
Available For Sale Equity Securities Gross Unrealized Gains | 15,255,747 itic_AvailableForSaleEquitySecuritiesGrossUnrealizedGains / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CommonStocksAndNonredeemablePreferredStocksMember | 15,225,459 itic_AvailableForSaleEquitySecuritiesGrossUnrealizedGains / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CommonStocksAndNonredeemablePreferredStocksMember
Available-For-Sale Equity Securities Gross Unrealized Losses | 127,931 itic_AvailableForSaleEquitySecuritiesGrossUnrealizedLosses / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CommonStocksAndNonredeemablePreferredStocksMember | 99,231 itic_AvailableForSaleEquitySecuritiesGrossUnrealizedLosses / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CommonStocksAndNonredeemablePreferredStocksMember
Available-for-sale, at fair value, Estimated Fair Value | 39,476,921 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CommonStocksAndNonredeemablePreferredStocksMember | 39,254,981 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CommonStocksAndNonredeemablePreferredStocksMember
Equity Securities |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 24,349,105 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember | 24,128,753 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember
Available For Sale Equity Securities Gross Unrealized Gains | 15,255,747 itic_AvailableForSaleEquitySecuritiesGrossUnrealizedGains / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember | 15,225,459 itic_AvailableForSaleEquitySecuritiesGrossUnrealizedGains / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember
Available-For-Sale Equity Securities Gross Unrealized Losses | 127,931 itic_AvailableForSaleEquitySecuritiesGrossUnrealizedLosses / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember | 99,231 itic_AvailableForSaleEquitySecuritiesGrossUnrealizedLosses / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember
Available-for-sale, at fair value, Estimated Fair Value | 39,476,921 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember | 39,254,981 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquitySecuritiesMember
Certificates Of Deposit And Other |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 4,400,330 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CertificatesOfDepositAndOtherMember | 2,576,993 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CertificatesOfDepositAndOtherMember
Short Term Investments Gross Unrealized Gains | 0 itic_ShortTermInvestmentsGrossUnrealizedGains / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CertificatesOfDepositAndOtherMember | 0 itic_ShortTermInvestmentsGrossUnrealizedGains / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CertificatesOfDepositAndOtherMember
Available-for-sale, at fair value, Gross Unrealized Losses | 0 itic_ShortTermInvestmentsGrossUnrealizedLosses / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CertificatesOfDepositAndOtherMember | 0 itic_ShortTermInvestmentsGrossUnrealizedLosses / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CertificatesOfDepositAndOtherMember
Available-for-sale, at fair value, Estimated Fair Value | 4,400,330 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CertificatesOfDepositAndOtherMember | 2,576,993 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = itic_CertificatesOfDepositAndOtherMember
Short-Term Investments |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |
Available-for-sale, at fair value, Amortized Cost | 4,400,330 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ShortTermInvestmentsMember | 2,576,993 us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ShortTermInvestmentsMember
Short Term Investments Gross Unrealized Gains | 0 itic_ShortTermInvestmentsGrossUnrealizedGains / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ShortTermInvestmentsMember | 0 itic_ShortTermInvestmentsGrossUnrealizedGains / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ShortTermInvestmentsMember
Available-for-sale, at fair value, Gross Unrealized Losses | 0 itic_ShortTermInvestmentsGrossUnrealizedLosses / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ShortTermInvestmentsMember | 0 itic_ShortTermInvestmentsGrossUnrealizedLosses / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ShortTermInvestmentsMember
Available-for-sale, at fair value, Estimated Fair Value | $ 4,400,330 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ShortTermInvestmentsMember | $ 2,576,993 us-gaap_AvailableForSaleSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_ShortTermInvestmentsMember

X
- Definition Available-For-Sale Equity Securities Gross Unrealized Gains + References No definition available. + Details
Name: | itic_AvailableForSaleEquitySecuritiesGrossUnrealizedGains
Namespace Prefix: | itic_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Available-For-Sale Equity Securities Gross Unrealized Losses + References No definition available. + Details
Name: | itic_AvailableForSaleEquitySecuritiesGrossUnrealizedLosses
Namespace Prefix: | itic_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of accumulated pre-tax unrealized gains before deducting pre-tax unrealized losses on investments in available-for-sale securities impacting investments. + References No definition available. + Details
Name: | itic_AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments
Namespace Prefix: | itic_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated pre-tax unrealized loss before deducting pre-tax unrealized gain on investments in available-for-sale securities impacting investments. + References No definition available. + Details
Name: | itic_AvailableForSaleSecuritiesGrossUnrealizedLossAccumulatedInInvestments
Namespace Prefix: | itic_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of Special Revenue Bonds + References No definition available. + Details
Name: | itic_NumberofSpecialRevenueBonds
Namespace Prefix: | itic_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Short Term Investments Gross Unrealized Gains + References No definition available. + Details
Name: | itic_ShortTermInvestmentsGrossUnrealizedGains
Namespace Prefix: | itic_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Short Term Investments Gross Unrealized Losses + References No definition available. + Details
Name: | itic_ShortTermInvestmentsGrossUnrealizedLosses
Namespace Prefix: | itic_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 + Details
Name: | us-gaap_AvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AvailableForSaleSecuritiesAmortizedCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=itic_CertificatesOfDepositAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=itic_CommonStocksAndNonredeemablePreferredStocksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=itic_IssuerObligationsOfUSStatesTerritoriesAndPoliticalSubdivisionsSpecialRevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_AuctionRateSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_DebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_ShortTermInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |