Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended					9 Months Ended
	Jul. 10, 2023	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Jun. 20, 2023
Class of Stock [Line Items]
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			$ (0.4)		$ (1.1)	$ (1.9)
Stock Issued During Period, Shares, New Issues	200,000,000	115,661		0			567,491	722,568
Stock Issued During Period, Value, Gross		$ 4.6		$ 0.0			$ 24.5	$ 24.4
Stock Issued During Period, Value, Net		4.5		0.0			23.8	23.4
Direct Costs of Stock Issuance		$ 0.1		$ 0.0			$ 0.1	$ 0.2
Preferred Stock, Par Value Per Share		$ 1.00					$ 1.00		$ 1.00
Minimum [Member]
Class of Stock [Line Items]
Purchase Price Increase Per Share									18.00
Maximum [Member]
Class of Stock [Line Items]
Purchase Price Increase Per Share									$ 160.38
Preferred Stock [Member]
Class of Stock [Line Items]
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			0.0		0.0	0.0
Common Stock [Member] | Common Class A [Member]
Class of Stock [Line Items]
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			0.0		0.0	0.0
Excess of Capital over Par Value [Member]
Class of Stock [Line Items]
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			$ (0.4)		$ (1.1)	$ (1.9)	$ (0.1)