Fair Value Measurements Schedule of Fair Value of assets and liabilities measured on a recurring basis (Details) - Forward Contracts - Not Designated as Hedging Instrument - Fair Value, Measurements, Recurring - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability for Commodity Hedges, Current		$ 202	$ 1,015
Derivative liability for commodity hedges	[1]	202	1,015
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability for commodity hedges		0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability for commodity hedges		202	1,015
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability for commodity hedges		$ 0	$ 0

[1] As of September 30, 2016 and December 31, 2015 the entire derivative liability for commodity hedges of $202 and $1,015, respectively, are short-term and are included in accrued and other current liabilities in the Condensed Consolidated Balance Sheets.