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

9 Months Ended

Sep. 30, 2020

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 September 30,				Nine months ended September 30,
	2020		2019		2020		2019
	(In millions, except per share amounts)
Numerator:
Net income	$	31.7	$	32.9	$	102.3	$	115.7
Income allocated to participating securities	(0.3)		(0.6)		(1.3)		(2.2)
Net income for basic and diluted EPS	$	31.4	$	32.3	$	101.0	$	113.5
Denominator:
Basic weighted average shares	77.6		77.3		77.6		77.1
Effect of:
2.25% Convertible Senior Notes ("21/4% Notes")	4.2		5.4		4.7		4.3
Awards issued under equity plans	0.1		0.1		0.1		0.1
Diluted weighted average shares	81.9		82.8		82.4		81.5
Basic
Basic EPS	$	0.40	$	0.42	$	1.30	$	1.47
Diluted
Diluted EPS	$	0.38	$	0.39	$	1.23	$	1.39