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Inventories | 12 Months Ended
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Dec. 31, 2017
Inventories |
4. | Inventories
December 31 (dollars in millions) |  | 2017 |  |  | 2016 |
Finished products |  | $ | 134.6 |  |  | $ | 114.1 |
Work in process |  |  | 18.3 |  |  |  | 13.0 |
Raw materials |  |  | 160.5 |  |  |  | 142.4 |
Inventories, at FIFO cost |  |  | 313.4 |  |  |  | 269.5 |
LIFO reserve |  |  | (22.2 | ) |  |  | (18.4 | )
|  | $ | 291.2 |  |  | $ | 251.1 |
The Company recognized after-tax LIFO (income) expense of $(0.3) million, $0.3 million and $1.1 million in 2017, 2016 and 2015, 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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Balance Type: | na
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