Earnings per Common Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Earnings Per Share, Basic and Diluted [Line Items]
Net income	$ 60.2	$ 50.2
Weighted average common shares outstanding for basic earnings per share computation (in shares)	98,880,749	103,092,225
Dilutive effects of stock-based compensation (in shares)	360,292	323,762
Weighted average common shares outstanding for diluted earnings per common share computation (in shares)	99,241,041	103,415,987
Basic earnings per common share (in dollars per share)	$ 0.61	$ 0.49
Diluted earnings per common share (in dollars per share)	$ 0.61	$ 0.49
Restricted Stock
Earnings Per Share, Basic and Diluted [Line Items]
Anti-dilutive unvested time restricted stock (in shares)	2,713	20,395
Unvested restricted stock
Earnings Per Share, Basic and Diluted [Line Items]
Anti-dilutive unvested time restricted stock (in shares)	528,756	828,874