Basis of Preparation (Tables)

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Operating Lease Future Minimum Lease Payments

The following table summarizes future minimum lease payments for non-cancelable operating leases as of September 30, 2019 and December 31, 2018:

	September 30, 2019		December 31, 2018
2019 (1)	$	1.9	$	7.9
2020	7.1		6.9
2021	6.4		5.7
2022	6.1		5.3
2023	5.5		4.6
Thereafter (2)	13.1		9.2
Total future minimum lease payments	$	40.1	$	39.6

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⁽¹⁾  Amount as of September 30, 2019 represents operating lease payments for the remaining three months, September 2019 through December 2019.

⁽²⁾ 

As of September 30, 2019, future minimum lease payments for non-cancelable operating leases for period subsequent to 2023 relate to 10 leased facilities.