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Cash and Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2019

The components of our investments as of December 31, 2018 are as follows (in millions):



	Cash & Cash Equivalents		Restricted Cash		Restricted Marketable Securities		Total
Cash	$	69.2	$	64.3	$	—	$	133.5
Equity securities	—		—		55.6		55.6
Debt securities	—		—		6.4		6.4
Total	$	69.2	$	64.3	$	62.0	$	195.5

The components of our investments as of December 31, 2019 are as follows (in millions):



	Cash & Cash Equivalents		Restricted Cash		Restricted Marketable Securities		Total
Cash	$	94.8	$	64.8	$	—	$	159.6
Equity securities	—		—		63.5		63.5
Debt securities	—		—		12.6		12.6
Total	$	94.8	$	64.8	$	76.1	$	235.7

As of December 31, 2019 and 2018, Restricted cash consisted of the following (in millions):

A summary of our available-for-sale marketable securities as of December 31, 2019 is as follows (in millions):

A summary of our available-for-sale marketable securities as of December 31, 2018 is as follows (in millions):

Investing information related to our available-for-sale marketable securities is as follows (in millions):



	For the Year Ended December 31,
	2019		2018		2017
Proceeds from sales and maturities of available-for-sale marketable securities	$	6.4	$	—	$	4.0

Scheduled maturities of investments in debt securities at December 31, 2019 were as follows (in millions):



	Cost		Fair Value
Due in one year or less	$	12.6	$	12.6
Due after one year through five years	—		—
Due after five years through ten years	—		—
Due after ten years	—		—
Total	$	12.6	$	12.6