Prepaid Expenses and Other Current Assets

6 Months Ended

Jun. 30, 2015

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 were as follows:

	As of
(in millions)	June 30, 2015		December 31, 2014		June 30, 2014
Workers’ compensation plan deposits	$	7.2	$	6.2	$	6.2
Deferred cost of sales - toll customers	6.2		12.7		8.6
Prepaid insurance	3.8		2.8		5.2
Derivative contract assets	1.7		1.3		1.5
Prepaid tooling	0.7		1.2		1.1
Other	2.7		2.0		3.1
Total prepaid expenses and other current assets	$	22.3	$	26.2	$	25.7