Number of manufacturing facilities in the consolidated group.

No definition available.

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- Definition

Owned and operated period.

+ References

No definition available.

+ Details

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- Definition

Date when the business acquisition agreement was executed, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

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- Definition

Cash dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations that are returns of capital. Excludes dividends or distributions from equity method investments classified as operating activities.

+ References

No definition available.

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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Subsequent Event - Additional Information (Detail) $ in Millions		9 Months Ended
	Nov. 01, 2016 USD ($) Facility	Sep. 30, 2016 Facility
Subsequent Event [Line Items]
Number of operating plants \| Facility		24
Beck Trading \| Minimum
Subsequent Event [Line Items]
Owned and operated period		65 years
Beck Purchase Agreement
Subsequent Event [Line Items]
Effective date of purchase agreement		Nov. 01, 2016
Subsequent Event \| Beck Trading
Subsequent Event [Line Items]
Percentage of ownership interest	49.00%
Subsequent Event \| Beck Purchase Agreement
Subsequent Event [Line Items]
Purchase agreement cash paid \| $	$ 23.7
Distributions received \| $	$ 6.0
Subsequent Event \| Beck Alloys
Subsequent Event [Line Items]
Number of operating plants \| Facility	3