Earnings Per Share Attributable to Common Stockholders (Tables)

9 Months Ended

Sep. 30, 2024

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

The following table details the computation of basic and diluted earnings per share:

	Three months ended September 30,				Nine months ended September 30,
	2024		2023		2024		2023
Net income available to common stockholders	$	66.9	$	54.7	$	264.7	$	99.1
Denominator:
Basic weighted average shares outstanding	184,304,993		182,148,717		183,752,510		161,724,677
Weighted average effect of dilutive securities:
Share units	590,407		875,477		617,090		655,762
Stock options and employee share purchase plan	604,588		577,407		630,299		536,154
Diluted weighted average shares outstanding	185,499,988		183,601,601		184,999,899		162,916,593
Earnings per share available to common stockholders:
Basic	$	0.36	$	0.30	$	1.44	$	0.61
Diluted	$	0.36	$	0.30	$	1.43	$	0.61