Commitments and Contingencies Activity in Recorded Environmental Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2016
Accrual for Environmental Loss Contingencies [Roll Forward]
Balance at beginning of period	$ 35,298
Expenditures	(387)
Accretion of discount	217
Foreign currency translation adjustments and other	1,555
Balance at end of period	$ 35,298	$ 36,683
Less amounts reported in Accrued expenses		1,904
Amounts reported in Other noncurrent liabilities		$ 34,779