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Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) plan $ / shares shares | Dec. 31, 2023 USD ($) plan $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Shares available for issuance under the 2016 Plan (in shares) | 1,300,000 |  |
Unrecognized compensation expense for all nonvested awards | $ | $ 25,800 |  |
Weighted average period for recognition (in years) | 1 year 7 months 6 days |  |
Weighted average remaining contractual life of options outstanding (in years) | 4 years 7 months 6 days |  |
Weighted average remaining contractual life of options exercisable (in years) | 3 years 8 months 12 days |  |
Aggregate intrinsic value of total options outstanding | $ | $ 182,000 |  |
Aggregate intrinsic value of total options vested | $ | $ 178,700 |  |
Weighted average grant date fair value of options granted (in dollars per share) | $ / shares | $ 134.25 | $ 108.95 | $ 96.43
Intrinsic value of options exercised | $ | $ 90,500 | $ 151,000 | $ 60,100
Grant date fair value of options vested | $ | $ 10,800 | $ 8,600 | $ 8,800
Deferred compensation plans and restricted share awards |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Deferred compensation conversion unit (in shares) | 1 |  |
Number of deferred compensation plans | plan | 2 | 2 |
Number of deferred stock units (in shares) | 332,897 | 352,541 |
Number of deferred stock units payable in cash (in shares) | 8,851 | 8,931 |
Deferred compensation plans and restricted share awards | Non-Employee Directors |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Granted at target level (in dollars per share) | $ / shares | $ 386.03 | $ 357.00 | $ 300.78
Granted at target level (in shares) | 6,064 | 6,160 | 4,827
Stock Option |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Rate shares are reduced for each award granted | 1 |  |
Awards, expiration period (in years) | 10 years |  |
Risk-free interest rate (as a percent) | 4.30% | 4.10% | 1.80%
Stock volatility (as a percent) | 32.00% | 29.80% | 25.10%
Dividend yield (as a percent) | 0.30% | 0.30% | 0.20%
Expected life (in years) | 6 years | 5 years 8 months 12 days | 5 years 7 months 6 days
Award Types Other than Stock Options and Stock Appreciation Rights |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Rate shares are reduced for each award granted | 2.5 |  |
Stock-settled PSU awards |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Granted at target level (in dollars per share) | $ / shares | $ 348.20 | $ 306.97 | $ 362.40
Number of shares to be issued upon conversion (in shares) | 7,946 |  |
Granted at target level (in shares) | 34,484 |  |
Stock-settled PSU awards | Minimum |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Actual payout range | 0.00% |  |
Stock-settled PSU awards | Maximum |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Actual payout range | 200.00% |  |
Employee stock purchase plan |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Shares available for issuance under the 2016 Plan (in shares) | 3,700,000 |  |
Percentage of current market price for sales to eligible employees (as a percent) | 85.00% |  |
Limitation on payroll deductions of employee's base salary (as a percent) | 25.00% |  |
Limitation on payroll deductions of employee's base salary, amount | $ | $ 25 |  |
Maximum number of shares per employee (in shares) | 2,000 |  |
Maximum number of shares per employee, per year (in shares) | 8,000 |  |
Purchases of shares (in shares) | 25,237 | 23,955 | 27,894
Restricted Stock |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |
Granted at target level (in dollars per share) | $ / shares | $ 339.32 | $ 314.06 | $ 310.52
Granted at target level (in shares) | 9,660 | 8,343 | 9,648

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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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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 The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -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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- 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 -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 weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (e)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. + 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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