XML 80 R69.htm IDEA: XBRL DOCUMENT v3.22.4

Earnings Per Common Share and Share Awards Summary of Share-based Award Transactions (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding - Number Outstanding | shares	0
$60.00 - $99.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
SARs exercise price, lower limit	$ 60.00
SARs exercise price, upper limit	$ 99.99
SARs Outstanding - As of December 31, 2022 | shares	2
SARs Outstanding - Weighted Average Remaining Contractual Life	4 months 17 days
SARs Outstanding - Weighted Average Exercise Price	$ 93.87
SARs Exercisable - Number Exercisable | shares	2
SARs Exercisable - Weighted Average Exercise Price	$ 93.87
$100.00 - $149.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
SARs exercise price, lower limit	100.00
SARs exercise price, upper limit	$ 149.99
SARs Outstanding - As of December 31, 2022 | shares	14
SARs Outstanding - Weighted Average Remaining Contractual Life	5 years 3 months 10 days
SARs Outstanding - Weighted Average Exercise Price	$ 138.79
SARs Exercisable - Number Exercisable | shares	4
SARs Exercisable - Weighted Average Exercise Price	$ 129.43
$150.00 - $199.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
SARs exercise price, lower limit	150.00
SARs exercise price, upper limit	$ 199.99
SARs Outstanding - As of December 31, 2022 | shares	23
SARs Outstanding - Weighted Average Remaining Contractual Life	3 years 8 months 26 days
SARs Outstanding - Weighted Average Exercise Price	$ 178.44
SARs Exercisable - Number Exercisable | shares	22
SARs Exercisable - Weighted Average Exercise Price	$ 179.04
$60.00 - $199.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
SARs exercise price, lower limit	60.00
SARs exercise price, upper limit	$ 199.99
SARs Outstanding - As of December 31, 2022 | shares	39
SARs Outstanding - Weighted Average Remaining Contractual Life	4 years 1 month 6 days
SARs Outstanding - Weighted Average Exercise Price	$ 159.39
SARs Exercisable - Number Exercisable | shares	28
SARs Exercisable - Weighted Average Exercise Price	$ 164.86

X

- Definition

Share-based Compensation, Shares Authorized under Stock Appreciation Plans, Exercise Price Range, Number of Exercisable Shares

+ References

No definition available.

+ Details

Name:	itic_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationPlansExercisePriceRangeNumberOfExercisableShares
Namespace Prefix:	itic_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Share-based Compensation, Shares Authorized under Stock Appreciation Rights Plans, Exercise Price Range, Exercisable Shares, Weighted Average Exercise Price

+ References

No definition available.

+ Details

Name:	itic_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsPlansExercisePriceRangeExercisableSharesWeightedAverageExercisePrice
Namespace Prefix:	itic_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Share-based Compensation, Shares Authorized under Stock Appreciation Rights Plans, Exercise Price Range, Lower Range Limit

+ References

No definition available.

+ Details

Name:	itic_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsPlansExercisePriceRangeLowerRangeLimit
Namespace Prefix:	itic_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Share-based Compensation, Shares Authorized under Stock Appreciation Rights Plans, Exercise Price Range, Number of Outstanding Shares

+ References

No definition available.

+ Details

Name:	itic_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsPlansExercisePriceRangeNumberOfOutstandingShares
Namespace Prefix:	itic_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Share-based Compensation, Shares Authorized under Stock Appreciation Rights Plans, Exercise Price Range, Outstanding Shares, Weighted Average Exercise Price

+ References

No definition available.

+ Details

Name:	itic_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsPlansExercisePriceRangeOutstandingAwardsWeightedAverageExercisePrice
Namespace Prefix:	itic_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Share-based Compensation, Shares Authorized under Stock Appreciation Rights Plans, Exercise Price Range, Outstanding Shares, Weighted Average Remaining Contractual Term

+ References

No definition available.

+ Details

Name:	itic_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsPlansExercisePriceRangeOutstandingSharesWeightedAverageRemainingContractualTerm
Namespace Prefix:	itic_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Share-based Compensation, Shares Authorized under Stock Appreciation Rights Plans, Exercise Price Range, Upper Range Limit

+ References

No definition available.

+ Details

Name:	itic_ShareBasedCompensationSharesAuthorizedUnderStockAppreciationRightsPlansExercisePriceRangeUpperRangeLimit
Namespace Prefix:	itic_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=itic_StockAppreciationRightsExercisePriceRange1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=itic_StockAppreciationRightsExercisePriceRange2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=itic_StockAppreciationRightsExercisePriceRange3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=itic_StockAppreciationRightsExercisePriceRange4Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: