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- Definition

Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Canceled in Period

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No definition available.

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- Definition

Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Converted To Cash

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- Definition

Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Converted To Cash, Value

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- Definition

Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other Than Options, Exercisable, Weighted Average Exercise Price

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No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Discount rate from fair value on offering date that participants pay for shares.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- 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.

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Share-based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	2 Months Ended	11 Months Ended	12 Months Ended
	Nov. 16, 2023	Jun. 30, 2022	Dec. 31, 2023	Nov. 15, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment expense			$ 2.8	$ 1.5	$ 4.3
Argo Group International Holdings, Inc. \| Common Stock \| Brookfield Reinsurance
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity interests issued and issuable (in dollars per share)	$ 30.00
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Converted To Cash, Value	$ 2.2
Converted to cash (in shares)					140,260
Share-based compensation, restricted shares , vested in period, fair value					$ 4.8
Vested in period (in shares)					114,101
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Converted To Cash, Value	$ 0.1
Converted to cash (in shares)	5,031				5,031
Canceled in period (in shares)					102,891
Performance Shares \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period, years					1 year
Performance Shares \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period, years					4 years
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment expense				$ 0.3
Awards granted (in shares)		135,000
Share-based compensation arrangement by share-based payment award, award vesting period, years		3 years
Weighted average exercise price (in dollars per share)		$ 43.80
Weighted average grant date fair value (in dollars per share)		$ 8.28
Vested in period (in shares)		45,000
Share-based Payment Arrangement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment expense					$ 0.2	$ 0.7	$ 0.5
2007 Employee Share Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period, years					3 months
Discount from market price					85.00%
Earn Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount from market price					85.00%
Earn Plan \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period, years					3 years
Earn Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period, years					5 years