Supplemental Balance Sheet, Income Statement and Cash Flow Information - Other expense (income) (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Other expense (income)
Losses (gains) on sales, disposals and involuntary conversions of long-lived assets	$ 5,298	$ 3,474
Impairment of our CJES holdings	177,242
Merger transaction		(52,574)
Litigation expenses	637	(4,077)
Foreign currency transaction losses (gains)	4,214	(2,345)
Gain on debt buybacks	(6,023)
Other losses (gains)	1,036	(320)
Other expense (income)	$ 182,404	$ (55,842)