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Share-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2018 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Aggregate intrinsic value of stock options exercised |  | $ 50.3 | $ 59.1 | $ 63.7
Total fair value of stock options vested |  | $ 11.4 | 13.7 | 12.9
Stock Options Granted Prior Date |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Contractual term of stock options |  | 7 years |  |
Beginning in 2018 Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Contractual term of stock options |  | 10 years |  |
Restricted Stock Granted Prior Date |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Cliff vesting period |  | 4 years |  |
Non Employee Directors Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Cliff vesting period |  | 2 years |  |
Performance Restricted Stock Units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Expected future pre-tax compensation expense, nonvested stock options |  | $ 4.0 |  |
Nonvested stock options outstanding |  | 0.3 |  |
Weighted average period to recognize expected future pre-tax compensation expense (in years) |  | 1 year |  |
Weighted average fair value, per share |  | $ 134.69 |  |
Performance Restricted Stock Units | Officers And Key Management Employees |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Cliff vesting period |  | 3 years |  |
Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Expected future pre-tax compensation expense, nonvested restricted shares |  | $ 27.0 |  |
Nonvested stock options outstanding |  | 0.4 |  |
Weighted average period to recognize expected future pre-tax compensation expense (in years) |  | 2 years |  |
Total fair value of vested restricted stock |  | $ 17.7 | $ 28.6 | $ 14.4
Weighted average fair value, per share |  | $ 134.52 | $ 122.60 |
Restricted Stock | Stock Options Granted Prior Date |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation, vesting rate | 33.33% |  |  |
Restricted Stock | Beginning in 2018 Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation, vesting rate | 33.33% |  |  |
Restricted Stock | Share-based Payment Arrangement, Tranche Three |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation, vesting rate | 33.33% |  |  |
Non Vested Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Expected future pre-tax compensation expense, nonvested stock options |  | $ 18.0 |  |
Nonvested stock options outstanding |  | 1.1 |  |
Weighted average period to recognize expected future pre-tax compensation expense (in years) |  | 2 years |  |
Non Vested Restricted Stock | Stock Options Granted Prior Date |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation, vesting rate | 33.33% | 25.00% |  |
Non Vested Restricted Stock | Beginning in 2018 Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation, vesting rate | 33.33% | 25.00% |  |
Non Vested Restricted Stock | Share-based Payment Arrangement, Tranche Three |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation, vesting rate | 33.33% | 25.00% |  |
Non Vested Restricted Stock | Share-based Payment Arrangement, Tranche Four |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation, vesting rate |  | 25.00% |  |
Restricted Stock Units (RSUs) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Consecutive trading days |  | 5 days |  |
Minimum | Performance Restricted Stock Units | Officers And Key Management Employees |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation, vesting rate |  | 0.00% |  |
Maximum | Performance Restricted Stock Units | Officers And Key Management Employees |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation, vesting rate |  | 200.00% |  |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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