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Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2026		Jun. 30, 2025	Dec. 31, 2025
Deferred compensation plan investments (1)	$ 148.9	[1]		$ 150.6
Participant Withdrawals From Deferred Compensation Plan Investments	4.9		$ 10.9
Level 1 [Member]
Deferred compensation plan investments (1)	148.9	[1]		150.6
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
Fair Value Hedging
Hedged Asset, Fair Value Hedge	2.7			4.9
Fair Value Hedging | Level 1 [Member]
Hedged Asset, Fair Value Hedge	0.0			0.0
Fair Value Hedging | Level 2 [Member]
Hedged Asset, Fair Value Hedge	2.7			4.9
Fair Value Hedging | Level 3 [Member]
Hedged Asset, Fair Value Hedge	$ 0.0			$ 0.0
[1] Approximately $4.9 million and $10.9 million of participant cash was withdrawn from our deferred compensation plan investments during the three months ended March 31, 2026 and the year ended December 31, 2025, respectively.

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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
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 7
-Publisher FASB
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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
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-Publisher FASB
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