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Capital Stock (Textuals) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Aug. 24, 2015
Share Repurchase Programs
Equity, Class of Treasury Stock [Line Items]
Shares repurchased (in shares) (less than)	0.1	0.1	0.1	0.2
Shares repurchased	$ 1.0	$ 1.0	$ 14.0	$ 19.0
2015 Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount					$ 500.0
Remaining authorized amount of repurchase	$ 182.0		$ 182.0
Settlement of Employee Tax Withholding Obligations
Equity, Class of Treasury Stock [Line Items]
Shares repurchased (in shares) (less than)	0.1	0.1	0.1	0.2
Shares repurchased	$ 1.0	$ 1.0	$ 14.0	$ 19.0

X

- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

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Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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Number of shares that have been repurchased during the period and are being held in treasury.

+ References

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-Section 50
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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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