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Stock-Based Compensation (Restricted Stock Units) (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Jan. 03, 2023
Share-Based Payment Arrangement, Additional Disclosure |  |  |  |
Stock-based compensation | $ 36.5 | $ 39.7 | $ 31.5 |
Tax benefits related to vesting of RSUs and exercise of stock options | $ 6.9 | $ 9.0 | $ 9.7 |
Restricted Stock Units (RSUs) [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |
Nonvested, shares, beginning balance | 1,000,000.0 |  |  |
Nonvested, weighted-average grant date fair value, beginning balance (in dollars per share) | $ 108.26 |  |  |
Granted, shares | 300,000 |  |  |
Granted, weighted-average grant date fair value (in dollars per share) | $ 171.84 | $ 139.11 | $ 112.66 |
Vested, shares | (300,000) |  |  |
Vested, weighted-average grant date fair value (in dollars per share) | $ 85.56 |  |  |
Forfeited, shares | (100,000) |  |  |
Forfeited, weighted-average grant date fair value (in dollars per share) | $ 138.69 |  |  |
Nonvested, shares, ending balance | 900,000 | 1,000,000.0 |  |
Nonvested, weighted-average grant date fair value, ending balance (in dollars per share) | $ 140.18 | $ 108.26 |  |
Share-Based Payment Arrangement, Additional Disclosure |  |  |  |
Total fair value of RSU's vested | $ 54.8 | $ 76.0 | $ 85.7 |
Stock-based compensation | 36.5 | 39.7 | 31.5 |
Tax benefit related to stock-based compensation expense | 4.1 | $ 4.5 | $ 4.0 |
Unrecognized compensation cost related to non-vested stock-based compensation arrangements | $ 34.3 |  |  |
Unrecognized compensation cost expected to be recognized over weighted average period (in years) | 1 year 6 months 3 days |  |  |
Director [Member] | Restricted Stock Units (RSUs) [Member] | Non-Employee Director Equity Plan 2014 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of restricted stock units granted to each non-employee director (in shares) |  |  |  | 1,659
Employee [Member] | Restricted Stock Units (RSUs) [Member] | Employee Equity and Incentive Plan 2017 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] |  |  |  |
Granted, shares | 300,000 |  |  |
Employee [Member] | Time-based Restricted Stock Units [Member] | Employee Equity and Incentive Plan 2017 [Member] | Minimum [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period (in years) | 3 years |  |  |
Employee [Member] | Time-based Restricted Stock Units [Member] | Employee Equity and Incentive Plan 2017 [Member] | Maximum [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period (in years) | 4 years |  |  |
Employee [Member] | Performance-based RSUs [Member] | Employee Equity and Incentive Plan 2017 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period (in years) | 3 years |  |  |
Measurement Period (in years) | 3 years |  |  |
Employee [Member] | Market-based RSUs [Member] | Employee Equity and Incentive Plan 2017 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period (in years) | 3 years |  |  |
Measurement Period (in years) | 3 years |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology [Abstract] |  |  |  |
Monte Carlo Simulation, Risk Free Interest Rate | 4.31% | 4.60% |  |
Monte Carlo Simulation, Expected Volatility Rate | 40.28% | 42.89% |  |
Monte Carlo Simulation, Expected Dividend Rate | 0.00% | 0.00% |  |

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + 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)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + 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)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + 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)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + 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)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -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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