Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	Dec. 09, 2024	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024	Jan. 26, 2023
Equity, Class of Treasury Stock [Line Items]
Treasury stock, shares		7,500,000		7,500,000		6,700,000
Treasury stock, Cost basis		$ 314.5		$ 314.5		$ 264.1
Shares repurchased		750,000	312,993	1,100,000	312,993
Excise tax				$ 0.4
2018 Stock Buyback Program [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares authorized for repurchase	4,300,000						4,300,000
Stock repurchase expiration date	Dec. 31, 2026
Shares repurchased			312,993	1,100,000
2018 Stock Buyback Program [Member] | Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Shares purchased average cost per share			$ 46.72	$ 54.58
Restricted Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares nonvested		100,000		100,000		100,000