Net Income per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Reconciliation of Basic to Diluted Net Income per Share

The following is a reconciliation of basic to diluted net income per share:

	Quarter Ended				Year to Date Ended
	June 30, 2020		June 30, 2019		June 30, 2020			June 30, 2019
Net income/(loss)	$	21.7	$	29.0	$	(95.0	)	$	64.2
Shares used in net income per common share - basic		64.6		64.3		64.5			64.3
Incremental shares of unvested restricted common stock		0.1		0.2		—			0.2
Shares used in net income per common share - diluted		64.7		64.5		64.5			64.5
Shares excluded as their inclusion would be anti-dilutive		—		—		0.1			—
Earnings/(Loss) per share:
Basic net income	$	0.34	$	0.45	$	(1.47	)	$	1.00
Diluted net income	$	0.34	$	0.45	$	(1.47	)	$	1.00