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Stockholders' Equity (Schedule of Deferred and Restricted Stock Units Transactions) (Details) - Deferred and Restricted Stock Unit - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Number of Shares
Balance at beginning of the period (in shares)	285,711	335,087	346,148
Issued (in shares)	5,427	4,653	5,703
Granted (in shares)	162,719	109,767	150,319
Dividend equivalents (in shares)	10,871	7,233	10,042
Forfeited (in shares)	(15,012)	(6,696)	(21,856)
Vested (in shares)	(171,942)	(164,333)	(155,269)
Balance at end of the period (in shares)	277,774	285,711	335,087
Weighted Average Price
Outstanding exercise price (in usd per share)	$ 110.41	$ 90.04	$ 87.54
Issued (in usd per share)	101.87	137.62	97.42
Granted (in usd per share)	119.84	142.37	97.70
Dividend equivalent (in usd per share)	103.27	134.78	95.08
Forfeited (in usd per share)	121.99	114.66	91.79
Exercised (in usd per share)	96.21	87.64	87.69
Outstanding exercise price (in usd per share)	$ 120.92	$ 110.41	$ 90.04

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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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.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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