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Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2023		Dec. 31, 2022
Deferred compensation plan investments (1)	$ 123.1	[1]	$ 120.7
Participant Withdrawals From Deferred Compensation Plan Investments	7.4		3.6
Level 1 [Member]
Deferred compensation plan investments (1)	123.1	[1]	120.7
Level 2 [Member]
Deferred compensation plan investments (1)	0.0	[1]	0.0
Level 3 [Member]
Deferred compensation plan investments (1)	$ 0.0	[1]	$ 0.0
[1] Approximately $7.4 million and $3.6 million of participant cash was withdrawn from our deferred compensation plan investments during the three months ended March 31, 2023 and the year ended December 31, 2022, respectively.

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Participant withdrawals from deferred compensation plan investments

+ References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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