Derivative Financial Instruments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Derivative assets	$ 947	$ 547
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	583	434
Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	364	$ 113
Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Average notional amount	$ 10,791