Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Summary of Quarterly Operating Results

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
(In millions, except per share data)	2020		2020		2020		2020
Revenues	$	436.2	$	368.0	$	456.7	$	520.4
Income (loss) before income taxes	(2.6)		0.1		51.6		45.0
Net income (loss)(a)	(3.7)		2.0		39.9		35.5
Earnings (loss) per share:
Basic	$	(0.13)	$	0.07	$	1.37	$	1.22
Diluted	$	(0.13)	$	0.07	$	1.35	$	1.19

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
(In millions, except per share data)	2019		2019		2019		2019
Revenues	$	475.7	$	475.1	$	508.1	$	540.1
Income (loss) before income taxes	(9.8)		15.0		5.2		53.2
Net income (loss)(b)	(6.7)		9.7		9.4		35.1
Earnings (loss) per share:
Basic	$	(0.23)	$	0.34	$	0.33	1.22
Diluted	$	(0.23)	$	0.33	$	0.32	$	1.20

(a)    Net income (loss) for the first, second and fourth quarters includes impairment charges of $6.3 million, $3.2 million and $5.9 million as discussed in Note 8, "Assets Held for Sale and Impairments."

(b)    Net income for the second quarter includes a restructuring charge of $7.7 million, the third quarter includes a loss on the early extinguishment of debt of $53.6 million and the fourth quarter includes an impairment of $4.0 million related to certain assets held for sale.