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Share-Based Compensation (Share-Based Compensation Valuation Assumptions) (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Aug. 04, 2022 $ / shares shares	Dec. 31, 2022 USD ($) $ / shares	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate exercise date intrinsic value of options exercised during the year | $		$ 27,210	$ 44,613	$ 3,433
Average estimated value of options granted during the year		$ 87.57	$ 62.66	$ 17.79
Anti-dilution adjustments of outstanding stock options, conversion ratio	1.03275
Share-based compensation arrangement by share-based payment award, options, outstanding, number, increase (decrease) (in shares) | shares	104,348
Special Dividend
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, dividends, per share, cash paid (in USD per share)	$ 13.15
Share-Based Payment Arrangement, Option, Valued With Black-Scholes Method
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life of options in years, based upon historical experience (in years)		6 years	5 years	5 years
Risk-free interest rate		2.90%	0.80%	0.40%
Expected volatility, based upon historical volatility		22.90%	24.10%	21.60%
Expected dividend yield		2.00%	2.90%	3.80%
Share-Based Payment Arrangement, Option, Valued With Monte-Carlo Simulation Method
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life of options in years, based upon historical experience (in years)		7 years	5 years
Risk-free interest rate		1.80%	0.90%
Expected volatility, based upon historical volatility		22.60%	26.50%
Expected dividend yield		2.30%	2.90%

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Anti-Dilution Adjustments Of Outstanding Stock Options, Conversion Ratio

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Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Number, Increase (Decrease)

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Aggregate dividends paid during the period for each share of common stock outstanding.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
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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.

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-Publisher FASB
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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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-Publisher FASB
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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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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)
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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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-Name Accounting Standards Codification
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-Paragraph 2
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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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