Inventories (Tables)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Summary of Inventories

The following table summarizes the components of inventories:

(in millions)	2017		2016
Finished goods	$	74.3	$	77.6
Raw materials	52.6		35.3
Work in process	10.3		7.2
Total inventories (a)	$	137.2	$	120.1

(a) Amounts at December 31, 2017 include inventories acquired in the TBEI acquisition - see Note 2 – Acquisitions.