Organization and Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Revenue Recognized from Contract Liability

The table below shows revenue that we recognized as a result of changes in the contract liability balances in the periods shown.



	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2020		2019		2020		2019
Revenue recognized in the period from:
Amounts included in contract liabilities at the beginning of the period	$	0.8	$	2.0	$	1.3	$	2.6

Schedule of Basic and Diluted Net Earnings (Loss) per Share

The following table sets forth the computation of basic and diluted net income (loss) per share for the periods shown.



	Three Months Ended June 30,					Six Months Ended June 30,
(In millions)	2020		2019			2020		2019
Net income (loss)	$	46.3	$	(10.5	)	$	66.2	$	(37.4	)

Net income (loss) per common share
Basic	$	0.49	$	(0.12	)	$	0.71	$	(0.41	)
Diluted	$	0.48	$	(0.12	)	$	0.69	$	(0.41	)

Basic weighted average shares outstanding	93.8		91.1			92.8		90.7
Dilutive potential common stock outstanding:
Restricted stock units	0.9		—			1.1		—
Warrants	2.3		—			1.7		—
Senior convertible notes	—		—			—		—
Diluted weighted average shares outstanding	97.0		91.1			95.6		90.7

Schedule of Outstanding Anti-dilutive Securities Excluded from Diluted Net Income (Loss) per Share

Outstanding anti-dilutive securities not included in the diluted net income (loss) per share attributable to common stockholders calculations were as follows:



	Three Months Ended June 30,		Six Months Ended June 30,
(In millions)	2020	2019	2020	2019
Restricted stock units	—	2.1	0.1	2.1
Warrants	2.9	5.2	3.5	5.2
Senior convertible notes	8.7	9.2	9.0	9.2
Total	11.6	16.5	12.6	16.5