Commitments and Contingencies (Details) $ in Thousands	1 Months Ended	6 Months Ended
	Nov. 30, 2011 customer	Jun. 30, 2015 USD ($) claim
Buenos Aires, Argentina
Commitments and Contingencies
Maximum facility revenue as a percentage of consolidated revenues		0.50%
Insurance Settlement [Member]
Commitments and Contingencies
Reasonably possible additional losses		$ 10,000
Italy Fire
Commitments and Contingencies
Number of customer lawsuits | customer	4
Number of customer lawsuits settled | claim		3