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Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized share-based compensation awards	$ 2.2	$ 1.2	$ 3.8	$ 2.0
Option exercised, intrinsic value	0.2	0.2
Non-Employee Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash received from employee stock option exercised	$ 0.2	$ 0.3	$ 0.3	$ 0.9
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	10,000	25,000	20,000	77,000
Option exercised, intrinsic value	$ 0.1	$ 0.1
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock awards granted	57,000	50,000	341,000	390,000
Number of Options, Granted	0	0	25,000	0

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- Definition

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

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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

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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