Organization and Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 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 March 31,
(In millions)	2020		2019
Revenue recognized in the period from:
Amounts included in contract liabilities at the beginning of the period	$	1.1	$	2.4

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 March 31,
(In millions)	2020		2019
Net income (loss)	$	19.9	$	(26.9	)

Net income (loss) per common share
Basic	$	0.22	$	(0.30	)
Diluted	$	0.21	$	(0.30	)

Basic weighted average shares outstanding	91.8		90.3
Dilutive potential common stock outstanding:
Stock options and employee stock purchase plan	—		—
Restricted stock units	1.2		—
2023 Warrants	1.1		—
2022 senior convertible notes	—		—
2023 senior convertible notes	—		—
Diluted weighted average shares outstanding	94.1		90.3

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 March 31,
(In millions)	2020	2019
Options outstanding to purchase common stock	—	—
Unvested restricted stock units	0.1	2.3
2023 Warrants	4.1	5.2
Senior convertible notes due 2022	4.0	4.0
Senior convertible notes due 2023	5.2	5.2
Total	13.4	16.7