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Inventories (Notes) | 12 Months Ended
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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.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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