Revenues (Tables)

9 Months Ended

Sep. 30, 2018

Revenue From Contract With Customer [Abstract]

Schedule of Change In Customer Advances Balance

The table below shows the change in the customer advances balance for the nine months ended September 30, 2018.

	Customer Advances Balance as of January 1, 2018		Cash Received in Advance of Satisfying Performance Obligation		Revenue Recognized		Customer Advances Balance as of September 30, 2018
Total	$	12.7	$	71.7	$	72.6	$	11.8