Prepaid Expenses and Other Assets

6 Months Ended

Jun. 30, 2019

Prepaid Expense and Other Assets [Abstract]

Prepaid Expenses and Other Assets

4. Prepaid Expenses and Other Assets

Prepaid expenses and other assets consist of the following:

	June 30, 2019		September 30, 2018
		(in millions)
Prepaid expenses and other assets	$	4.6	$	5.0
Unbilled accounts receivable		7.2		10.8
Total prepaid expenses and other assets	$	11.8	$	15.8