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Investments in Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2020

Marketable Securities [Abstract]

Schedule of Investments in Marketable Securities

The following is a summary of the cost, gross unrealized gains, gross unrealized losses and fair value of Investments in marketable securities:

															December 31, 2019						September 30, 2020
Cost															$	57.9					$	67.5
Unrealized gains															2.1						2.4
Unrealized losses															(0.6)						(1.7)
Fair value															$	59.4					$	68.2

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- Definition

Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.

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