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Inventories (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)
Inventory, Net [Abstract]
Nonmonetary transaction, amount of barter transaction	$ 8.3

X

- References

No definition available.

+ Details

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

X

- Definition

The amount of revenue and expenses for the services received and provided in a nonmonetary arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68051663&loc=d3e49171-111630

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration