Earnings per Common Share - Tables

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings per Share

The following table sets forth the computation of basic and diluted earnings per common share:

Year Ended December 31,	2021		2020		2019
Net income, basic and diluted	$	192.1	$	161.2	$	181.0
Weighted average common shares outstanding for basic earnings per share computation	61,650,312		63,611,891		63,645,029
Dilutive effects of stock-based compensation	91,516		117,579		239,839
Weighted average common shares outstanding for diluted earnings per common share computation	61,741,828		63,729,470		63,884,868
Basic earnings per common share	$	3.12	$	2.53	$	2.84
Diluted earnings per common share	3.11		2.53		2.83