Inventories (Notes)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

Inventories

The following table summarizes the components of inventory:

	December 31,
	2017		2016
Raw materials and supplies	$	97.2	$	65.7
Work in process	37.4		31.6
Finished goods	74.3		72.4
Total inventories, net	$	208.9	$	169.7

The Hudson acquisition added $23.1 to our inventories, net balance at December 31, 2017, of which $21.3 was classified as raw materials and supplies. Refer to Note 10, Business Combinations, for further information related to inventories acquired during 2017. The allowance for excess and obsolete inventory balance at December 31, 2017 and 2016 was $8.5 and $10.1, respectively.