Basis Of Presentation and Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principles of Consolidation and Basis of Presentation	Principles of Consolidation and Basis of Presentation: The accompanying Consolidated Financial Statements include the accounts and operations of Investors Title Company and its subsidiaries, and have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). Earnings attributable to noncontrolling interests in majority-owned insurance agencies are recorded in the Consolidated Statements of Income. All intercompany balances and transactions have been eliminated in consolidation.
Cash and Cash Equivalents	Cash and Cash Equivalents For the purpose of presentation in the Company’s Consolidated Statements of Cash Flows, cash equivalents are highly liquid instruments with remaining original maturities of three months or less. The carrying amount of cash and cash equivalents is a reasonable estimate of fair value due to the short-term maturity at purchase of these instruments.
Investments in Securities	Investments in Securities Investments in Fixed Maturity Securities: Fixed maturity securities are classified as available-for-sale and reported at estimated fair value with unrealized gains and losses, net of tax and adjusted for other-than-temporary declines in fair value, reported in accumulated other comprehensive income. Securities are regularly reviewed for differences between the cost and estimated fair value for factors that may indicate that a decline in fair value is other-than-temporary. Some factors considered in evaluating whether or not a decline in fair value is other-than-temporary include the duration and extent to which the fair value has been less than cost and the Company’s ability and intent to retain the investment for a period of time sufficient to allow for a recovery in value. Such reviews are inherently uncertain and the value of the investment may not fully recover or may decline in future periods resulting in a realized loss. Realized gains and losses are determined on the specific identification method. Refer to Note 3 for further information about the Company’s investments in fixed maturity securities. Investments in Equity Securities: Equity securities represent ownership interests held by the Company in entities for investment purposes. Prior to January 1, 2018, these equity securities were classified as available-for-sale and were carried at estimated fair value on the Company’s Consolidated Balance Sheets. Unrealized holding gains and losses from changes in the fair values of available-for-sale equity securities were reported in accumulated other comprehensive income. Effective January 1, 2018, changes in the estimated fair value of equity security investments are reported in the Consolidated Statements of Income. As a result, other-than-temporary impairments will no longer be considered for equity securities. Realized investment gains and losses from sales are recorded on the trade date and are determined using the specific identification method. Refer to Note 3 for further information about the Company’s investments in equity securities.
Other Investments	Other Investments Other investments consist of investments in unconsolidated affiliated entities, typically structured as limited liability companies ("LLC's"), without readily determinable fair values. Other investments are accounted for under either the equity method or the measurement alternative method. The measurement alternative method is used when an investment does not qualify for the equity method or the practical expedient in Accounting Standards Codification (“ASC”) Topic 820, which estimates fair value using the net asset value per share. Under the measurement alternative method, investments are recorded at cost, less any impairment and plus or minus any changes resulting from observable price changes in orderly transactions for an identical or similar investment of the same issuer. The aggregate cost of the Company’s cost method investments totaled $7.9 million and $6.6 million at December 31, 2019 and 2018, respectively. The Company monitors any events or changes in circumstances that may have had a significant adverse effect on the fair value of these investments and makes any necessary adjustments.
Short-term Investments	Short-term Investments Short-term investments are comprised of money market accounts which are invested in short-term funds, commercial paper, certificates of deposit, and other investments expected to have maturities or redemptions greater than three months and less than twelve months. The Company monitors any events or changes in circumstances that may have a significant adverse effect on the fair value of these investments.
Property Acquired in Settlement of Claims	Property Acquired in Settlement of Claims Property acquired in settlement of claims is held for sale and valued at the lower of cost or market. Adjustments to reported estimated realizable values and realized gains or losses on dispositions are recorded as increases or decreases in claim costs. Properties acquired in settlement of claims are included in other assets in the Consolidated Balance Sheets.
Property and Equipment	Property and Equipment Property and equipment are recorded at cost and are depreciated principally under the straight-line method over the estimated useful lives (3 to 25 years) of the respective assets. Maintenance and repairs are charged to operating expenses and improvements are capitalized.
Reserves for Claims	Reserve for Claims The total reserve for all reported and unreported losses the Company incurred through December 31, 2019 is represented by the reserve for claims. The Company’s reserve for unpaid losses and loss adjustment expenses is established using estimated amounts required to settle claims for which notice has been received (reported) and the amount estimated to be required to satisfy incurred claims of policyholders which may be reported in the future (incurred but not reported, or “IBNR”). Despite the variability of such estimates, management believes that the reserve is adequate to cover claims losses resulting from pending and future claims for policies issued through December 31, 2019. The Company continually reviews and adjusts its reserve estimates as necessary to reflect its loss experience and any new information that becomes available. Adjustments resulting from such reviews may be significant. Claims losses paid are charged to the reserve for claims. Although claims losses are typically paid in cash, occasionally claims are settled by purchasing the interest of the insured or the claimant in the real property. When this event occurs, the acquiring company carries assets at the lower of cost or estimated realizable value, net of any indebtedness on the property.
Income Taxes	Income Taxes The Company makes certain estimates and judgments in determining income tax expense (benefit) for financial statement purposes. These estimates and judgments occur in the calculation of certain tax assets and liabilities which arise from differences in the timing of recognition of revenue and expense for tax and financial statement purposes. The Company provides for deferred income taxes (benefits) for the tax consequences in future years of temporary differences between the financial statements’ carrying values and the tax bases of assets and liabilities using currently enacted tax rates. The Company establishes a valuation allowance if it believes that it is more likely than not that some or all of its deferred tax assets will not be realized. Refer to Note 8 for further information regarding income taxes.
Premiums Written and Commissions to Agents	Premiums Written and Commissions to Agents Generally, title insurance premiums are recognized at the time of settlement of the related real estate transaction, as the earnings process is then considered complete, irrespective of the timing of issuance of a title insurance policy or commitment. Expenses typically associated with premiums, including agent commissions, premium taxes, and a provision for future claims are recognized concurrent with recognition of related premium revenue.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts Company management continually evaluates the collectability of receivables and provides an allowance for doubtful accounts equal to estimated losses expected to be incurred in the collection of premiums and fees receivable. Changes to the allowance for doubtful accounts are reflected within net premiums written in the Consolidated Statements of Income. Amounts are charged off in the period they are deemed to be uncollectible. Quarterly, the Company evaluates the collectability of receivables. Premiums not collected within 7 months are fully reserved. Write-offs of receivables have not been material to the Company.
Exchange Services Revenue	Exchange Services Revenue Fees are recognized at the signing of a binding agreement and investment earnings are recognized as they are earned. Exchange services revenue is included in non-title services in the Consolidated Statements of Income.
Fair Values of Financial Instruments	Fair Values of Financial Instruments The carrying amounts reported in the Consolidated Balance Sheets for cash and cash equivalents, short-term investments, premium and fees receivable, accrued interest and dividends, accounts payable, commissions payable, reinsurance payable and current income taxes recoverable/payable approximate fair value due to the short-term nature of these assets and liabilities. Estimated fair values for the majority of investment securities are based on quoted market prices. Refer to Note 3 for further information regarding investments in securities and fair value.
Comprehensive Income	Comprehensive Income The Company’s accumulated other comprehensive income is comprised of unrealized holding gains or losses on available-for-sale securities, net of tax, and unrealized gains or losses associated with postretirement benefit liabilities, net of tax. Accumulated other comprehensive income as of December 31, 2019 consists of $3.1 million of unrealized holding gains on available-for-sale securities and $32 thousand of unrecognized actuarial losses associated with postretirement benefit liabilities. Accumulated other comprehensive income as of December 31, 2018 consists of $981 thousand of unrealized holding gains on available-for-sale securities and $32 thousand of unrecognized actuarial losses associated with postretirement benefit liabilities. Accumulated other comprehensive income as of December 31, 2017 consists of $16.0 million of unrealized holding gains on available-for-sale securities and $58 thousand of unrecognized actuarial losses associated with postretirement benefit liabilities.
Share-Based Compensation	Share-Based Compensation The Company accounts for share-based compensation in accordance with the fair value based principles required by the Financial Accounting Standards Board (“FASB”). Share-based compensation cost is generally measured at the grant date, based on the estimated fair value of the award, and is recognized as an expense over the employee’s requisite service period. As the share-based compensation expense recognized in the Consolidated Statements of Income is based on awards ultimately expected to vest, it has been reduced for estimated forfeitures. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.
Goodwill and Other Intangible Assets	Goodwill Goodwill represents the excess of cost over fair value of identifiable net assets acquired and assumed in a business combination. The fair value of the Company’s goodwill at acquisition is principally based on values obtained from a third-party valuation service. Goodwill is reviewed for impairment at least annually, or when events or changes in circumstances indicate the carrying value may not be recoverable. When evaluating whether goodwill is impaired, the Company determines through qualitative analysis whether relevant events and circumstances indicate that it is more likely than not that goodwill balances are impaired as of the testing date. If the qualitative analysis does not indicate that an impairment of goodwill is more likely than not, then no other specific quantitative impairment testing is required. If it is determined that it is more likely than not that an impairment exists, the Company performs a quantitative assessment whereby a discounted cash flow analysis is utilized to determine an estimated fair value. The estimated fair value is compared to the carrying value of goodwill as of the measurement date. The discounted cash flows used in estimating fair value are dependent on a number of significant assumptions, and therefore estimated fair value measurements are subject to change given the inherent uncertainty in predicting future results and cash flows. Other Intangible Assets The Company’s other intangible assets consist of non-compete agreements, referral relationships and a tradename resulting from agency acquisitions; all of which are recorded at the acquisition date fair value. The fair value of the Company’s other intangible assets is principally based on values obtained from a third-party valuation service. These assets are amortized on a straight-line basis over their useful lives, which range from 1 to 30 years; noting that the amortization of certain non-compete contracts will start at a future date when the related employment agreements are terminated. Other intangible assets are reviewed for impairment at least annually or when events or changes in circumstances indicate the carrying value may not be recoverable.
Title Plant	Title Plants Title plants represent a historical record of matters affecting title to parcels of land in a particular geographic area. Title plants are recorded at the cost incurred to construct or obtain and organize historical title information to the point it can be used to perform title searches. Costs incurred to maintain, update and operate title plants are expensed as incurred. Title plants are not amortized as they are considered to have an indefinite life with no diminishment of value if properly maintained; but are subject to impairment evaluation, which the Company performs on at least an annual basis.
Leases	Leases At inception, the Company determines if an arrangement is a lease. The Company enters into lease agreements that are primarily used for office space, and all current leases are accounted for as operating leases. Amounts related to operating leases are included in operating lease right-of-use ("ROU") assets and operating lease liabilities on the Company's Consolidated Balance Sheets. Operating lease ROU assets represent the Company’s right to use an underlying asset for the stated lease term. Operating lease liabilities represent the Company’s obligation to make lease payments arising from an operating lease. Operating lease ROU assets and liabilities are recognized at the date of the lease commencement, and are based on the present value of lease payments over the lease term. In addition, the Company elected certain practical expedients and therefore (a) chose not to reassess whether any expired or existing contracts are, or contain, leases, (b) chose not to reassess the lease classification for any expired or existing leases, and (c) chose not to reassess initial direct costs for any expired or existing leases. The Company's current leases do not provide an implicit interest rate, thus the Company utilized the average rate over a 10-year term based upon the Moody's seasoned Aaa corporate bond yields in determining the present value of lease payments. A portion of the Company's current leases includes an option to extend or cancel the lease term. The exercise of such an option is solely at the Company's discretion. The operating lease liability recorded in the Consolidated Balance Sheets includes lease payments related to options to extend or cancel the lease term if the Company determined at the date of adoption that the lease was expected to be renewed or extended. A lease expense is recognized on a straight-line basis over the lease term. Adjustments for straight-line rental expense for the periods presented are not material and as such, the lease expense recognized was reflected in cash used in operating activities for the respective periods. Refer to Note 9 for further information about the Company's leases.
Subsequent Events	Subsequent Events The Company has evaluated and concluded that there were no material subsequent events requiring adjustment or disclosure to its Consolidated Financial Statements.
Recently Issued Accounting Standards	Recently Adopted Accounting Standards In February 2016, the FASB issued Accounting Standards Update ("ASU") 2016-02, Leases (Topic 842). ASU 2016-02 updated guidance to improve financial reporting for leasing transactions. The core principle of the guidance is that lessees will be required to recognize assets and liabilities on the balance sheet for all leases with terms of more than twelve months. A lessee will recognize a liability to make lease payments and a ROU asset representing its right to use the underlying asset for the lease term. Disclosures are required by lessees to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. In transition, lessees are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach, with certain practical expedients available. The update was effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company adopted this update on January 1, 2019 with no material impact on the Company's Consolidated Statements of Income or the Consolidated Statements of Cash Flows. The update did have a material impact on the Company's Consolidated Balance Sheets, which included the recognition of operating lease ROU assets and operating lease liabilities. Refer to Note 9 and the Significant Accounting Policies section, above, for further information regarding the Company's accounting for leases. In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities. ASU 2017-08 is intended to enhance the accounting for the amortization of premiums for purchased callable debt securities. Specifically, the ASU shortens the amortization period for certain investments in callable debt securities purchased at a premium by requiring that the premium be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The update was effective for annual periods beginning after December 15, 2018, and interim periods within those fiscal years. The Company adopted this update on January 1, 2019 with no impact on the Company's financial position and results of operations. Recently Issued Accounting Standards In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326). ASU 2016-13 is intended to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. The update broadens the information that an entity must consider in developing its expected credit loss estimates, and is meant to better reflect an entity’s current estimate of all expected credit losses. In addition, this update amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The update is effective for annual periods beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted as of fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company has evaluated the impact that the recently issued accounting standard will have on the Company's financial position and results of operations, and does not expect it to have a material impact. Currently, the Company's potential credit losses under this accounting standard relate to fixed maturity securities. The Company does not believe that the risk of credit losses, based on current fixed maturity securities holdings, is material to the Company's consolidated financial statements as a whole. Refer to Note 3 for further information about the Company's investments. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350). This update removes the requirement to compare the implied fair value of goodwill with its carrying amount as part of step 2 of the goodwill impairment test. As a result, under the ASU, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. In addition, the ASU clarifies that an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. The update is effective for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company has evaluated the impact that the recently issued accounting standard will have on the Company's financial position and results of operations, and does not expect it to have a material impact. In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes. ASU 2019-12 is intended to reduce the complexity in accounting for income taxes during interim and annual periods and is expected to provide clarity on income tax situations where a diversity in practice has developed. The update is effective for annual and interim periods in fiscal years beginning after December 15, 2020. Early adoption is permitted for interim or annual periods for which financial statements have not yet been issued. None of these amendments are expected to have a material impact on the Company's financial position or results of operations.
Use Of Estimates and Assumptions	Use of Estimates and Assumptions The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosures of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period and accompanying consolidated notes. Actual results could differ materially from those estimates and assumptions used. The more significant of these estimates and assumptions include the following: Claims: The Company’s reserve for claims is established using estimated amounts required to settle claims for which notice has been received (reported) and the amount estimated to be required to satisfy incurred claims of policyholders which have been incurred but not reported. A provision for estimated future claims payments is recorded at the time policy revenue is recorded as a percentage of net premiums written. By their nature, title claims can often be complex, vary greatly in dollar amounts, vary in number due to economic and market conditions such as an increase in mortgage foreclosures, and involve uncertainties as to ultimate exposure. In addition, some claims may require a number of years to settle and determine the final liability for indemnity and loss adjustment expense. The payment experience may extend for more than 20 years after the issuance of a policy. Events such as fraud, defalcation and multiple property defects can substantially and unexpectedly cause increases in estimates of losses. Due to the length of time over which claim payments are made and regularly occurring changes in underlying economic and market conditions, these estimates are subject to variability. Management considers factors such as the Company’s historical claims experience, case reserve estimates on reported claims, large claims, actuarial projections and other relevant factors in determining its loss provision rates and the aggregate recorded expected liability for claims. In establishing the reserve, actuarial projections are compared with recorded reserves to evaluate the adequacy of such recorded claims reserves and any necessary adjustments are then recorded in the current period’s income statement. As the most recent claims experience develops and new information becomes available, the loss reserve estimate related to prior periods will change to more accurately reflect updated and improved emerging data. The Company reflects any adjustments to the reserve in the results of operations in the period in which new information (principally claims experience) becomes available. Premiums written: Premium revenues from certain agency operations include accruals for transactions which have settled but have not been reported as of the balance sheet date. These accruals are based on estimates of the typical lag time between settlement of real estate transactions and the agent’s reporting of these transactions to the Company. Reporting lag times vary by market. In certain markets, the lag time may be very short, but in others, can be as high as 100 days. The Company reviews and adjusts lag time estimates periodically, using historical experience and other factors, and reflects any adjustments in the result of operations in the period in which new information becomes available. Impairments: Securities are regularly evaluated and reviewed for differences between the cost and estimated fair value of each security for factors that may indicate that a decline in estimated fair value is other-than-temporary. When, in the opinion of management, a decline in the estimated fair value of an investment is considered to be other-than-temporary, such investment is written down to its estimated fair value. Some factors considered in evaluating whether or not a decline in estimated fair value is other-than-temporary include the duration and extent to which the estimated fair value has been less than cost; the probability that the Company will be unable to collect all amounts due under the contractual terms of the security; whether the Company has the intent to sell or will more likely than not be required to sell a particular security before recovery in value; and the financial condition and prospects of the issuer (including credit ratings). These factors are reviewed quarterly and any material degradation in the prospect for recovery will be considered in the other-than-temporary impairment analysis. Such reviews are inherently uncertain and the value of the investment may not fully recover or may decline in future periods resulting in a realized loss. The estimated fair values of the majority of the Company’s investments are based on quoted market prices from independent pricing services.