Derivative Financial Instruments (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	$ 1,658	$ 434
Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	410	$ 113
Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	25
Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Average notional amount	$ 11,809