Fair Value Measurements Level 3 Roll Forward (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Fair Value Measurements, Recurring Basis, Level 3 Rollforward
Liability Balance at Beginning of Period	$ 0	$ (2,554)
Liability Balance at End of Period	0	$ (2,554)
Cost of Sales [Member]
Fair Value Measurements, Recurring Basis, Level 3 Rollforward
Change in fair value recognized in other comprehensive income	(1,095)
Sales [Member]
Fair Value Measurements, Recurring Basis, Level 3 Rollforward
Change in fair value recognized in other comprehensive income	165
Changes Measurement [Member]
Fair Value Measurements, Recurring Basis, Level 3 Rollforward
Change in fair value recognized in other comprehensive income	(1,625)
Changes Measurement [Member] \| Cost of Sales [Member]
Fair Value Measurements, Recurring Basis, Level 3 Rollforward
Change in fair value recognized in other comprehensive income	$ 1

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of gain (loss) recognized in other comprehensive income, arising from assets, liabilities and financial instruments classified in shareholders' equity measured at fair value on a recurring basis using unobservable inputs (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

+ Details

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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