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Stock-Based Compensation Plans and Employee Benefits - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Class Of Stock [Line Items] |  |  |  |  |  |
Share-based payments award, number of shares available for grant |  |  |  | 1,700,000 |  |
Common shares issued |  |  |  | 100,000 | 100,000 | 100,000
Stock options outstanding |  |  |  | 200,000 | 200,000 | 300,000
Stock options weighted-average price |  |  |  | $ 27.36 | $ 27.31 | $ 26.96
RSUs [Member] |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, shares granted |  |  |  | 600,000 | 100,000 | 400,000
Restricted Stock [Member] |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, shares granted |  |  |  | 571,000 |  |
Weighted-average fair value of the restricted stock |  |  |  | $ 12.48 |  |
Total unrecognized compensation cost granted |  |  |  | $ 12.3 |  |
Term of recognition of unrecognized stock option compensation cost |  |  |  | 1 year 8 months 12 days |  |
Restricted Stock [Member] | Minimum [Member] |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Vesting period |  |  |  | 3 years |  |
Weighted-average fair value of the restricted stock |  |  |  | $ 7.87 |  |
Restricted Stock [Member] | Maximum [Member] |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Vesting period |  |  |  | 5 years |  |
Weighted-average fair value of the restricted stock |  |  |  | $ 15.33 |  |
Performance-Based Restricted Share Units (PRSUs) [Member] |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Common shares issued | 559,559 | 519,255 | 570,295 |  |  |
Performance-based restricted share units, description |  |  |  | In 2023 and 2022, the Board of Directors approved grants to the Company’s four named executive officers and one additional officer. In 2021 and 2020, the Board of Directors approved grants to the chief executive officer and the chief financial officer. And in 2019 and 2018, the Board of Directors approved grants to the chief executive officer. These PRSUs cover a “target” number of shares, subject to three-year performance periods beginning on the respective March 1 and ending after a three-year period on the respective February 28. In addition, in 2020 the Board of Directors approved grants to the chief financial officer covering a “target” number of shares, subject to one-year, and two-year performance periods beginning on March 1, 2020. |  |
Performance-based restricted share units, fair value equity and liability awards |  |  |  | $ 3.9 | $ 3.9 | $ 3.3
Share based compensation arrangement by share based payment award, mark to market adjustment |  |  |  |  |  | $ 5.6
Performance-Based Restricted Share Units (PRSUs) [Member] | Minimum [Member] |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, target |  |  |  | 0.00% |  |
Performance-Based Restricted Share Units (PRSUs) [Member] | Maximum [Member] |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, target threshold |  |  |  | 200.00% |  |

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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). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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