Earnings Per Share ("EPS") of Common Stock (Tables)

3 Months Ended

Mar. 31, 2022

Earnings Per Share [Abstract]

Summary of Reconciliation of Numerator and Denominator Used to Calculate Basic and Diluted Income (Loss) Per Share of Common Stock

The following table reconciles the numerator and denominator used to calculate basic and diluted EPS of common stock:

	Three months ended March 31,
	2022		2021
	(In millions, except per share amounts)
Numerator:
Net income	$	27.8	$	18.1
Income allocated to participating securities	(0.1)		(0.1)
Net income for basic EPS	$	27.7	$	18.0
Interest on 2¼% Notes	0.7		—
Net income for diluted EPS	$	28.4	$	18.0
Denominator:
Basic weighted average shares	80.2		77.6
Effect of:
21/4% Notes	5.6		3.1
Diluted weighted average shares	85.8		80.7
Basic
Basic EPS	$	0.34	$	0.23
Diluted
Diluted EPS	$	0.33	$	0.22