Prepaid Expenses and Other Current Assets

12 Months Ended

Dec. 31, 2019

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid Expenses and Other Current Assets

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets is comprised of the following (in millions):

	Year Ended December 31,
	2019		2018
Prepaid expenses	$	16.7	$	13.6
Security deposits	5.1		4.8
Lease-related receivables	4.3		4.2
Deferred contract costs	4.0		2.8
Notes receivable	0.8		4.0
Other current assets	10.7		5.4
Ending balance	$	41.6	$	34.8