XML 23 R13.htm IDEA: XBRL DOCUMENT v3.8.0.1

Inventories

3 Months Ended

Mar. 31, 2018

Inventory, Net [Abstract]

Inventories

Inventories

Inventories consist of the following:	March 31, 2018				December 31, 2017
Raw materials	$	108.1			$	106.2
Work-in-process	54.3				49.6
Finished goods	41.7				40.9
Operating and other supplies	126.6				120.8
Total inventories	$	330.7			$	317.5

Inventories are stated at the lower of cost or Net Realizable Value ("NRV") using the first-in, first-out ("FIFO") or the weighted average cost method.

X

- 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

Name:	us-gaap_InventoryDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_InventoryNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration