XML 59 R45.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Basis Of Presentation and Significant Accounting Policies (Details) | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($) State Subsidiary | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Number of title insurance subsidiaries | Subsidiary | 2 |  |
Number of States in which Entity operates | State | 22 |  |
Cost Method Investments, Original Cost | $ 5,438,745 | $ 4,744,402 |
Premium collection period before reserved | 7 months |  |
Unrealized holding gains on available-for-sale securities | $ 16,002,382 | 11,870,647 | $ 11,597,741
Unrecognized prior service cost and unrecognized actuarial losses associated with postretirement benefit liabilities | 57,556 | 109,200 | 114,726
Excess Tax Benefit from Share-based Compensation, Operating Activities | $ 142,280 | 32,293 | 26,875
Potential claim payment period after policy issuance | 20 years |  |
Minimum |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Property and equipment useful life | 3 years |  |
Finite-Lived Intangible Asset, Useful Life | 1 year |  |
Maximum |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Property and equipment useful life | 25 years |  |
Finite-Lived Intangible Asset, Useful Life | 30 years |  |
Lag time between Policy effective dates and transaction reporting dates | 100 days |  |
Restatement Adjustment [Member] |  |  |
Organization, Consolidation and Presentation of Financial Statements [Line Items] |  |  |
Quantifying Misstatement in Current Year Financial Statements, Amount |  | $ 1,526,230 | $ 566,213

X
- Definition Lag time between Policy effective dates and transaction reporting dates + References No definition available. + Details
Name: | itic_LagTimeBetweenPolicyEffectiveDatesAndTransactionReportingDates
Namespace Prefix: | itic_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of title insurance subsidiaries + References No definition available. + Details
Name: | itic_NumberOfTitleInsuranceSubsidiaries
Namespace Prefix: | itic_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition [Line Items] for Organization, Consolidation and Presentation of Financial Statements [Table] + References No definition available. + Details
Name: | itic_OrganizationConsolidationandPresentationofFinancialStatementsLineItems
Namespace Prefix: | itic_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Potential claim payment period after policy issuance + References No definition available. + Details
Name: | itic_PotentialClaimPaymentPeriodAfterPolicyIssuance
Namespace Prefix: | itic_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Premium collection period before reserved + References No definition available. + Details
Name: | itic_PremiumCollectionPeriodBeforeReserved
Namespace Prefix: | itic_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated appreciation or loss, net of tax, in value of the total of available-for-sale securities at the end of an accounting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e681-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669646-108580 + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Original amount of cost-method investments at the acquisition date. + References No definition available. + Details
Name: | us-gaap_CostMethodInvestmentsOriginalCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 20 -Section 55 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=96864182&loc=d3e11374-113907 + Details
Name: | us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of each individual error being corrected in the correcting adjustment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 1.N) -URI http://asc.fasb.org/extlink&oid=26874127&loc=d3e30840-122693 + Details
Name: | us-gaap_QuantifyingMisstatementInCurrentYearFinancialStatementsAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_RestatementAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |