Nonpension Postretirement Benefits (Pre-tax Amounts Recognized in Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	$ 4,426	$ 12,929
Prior service cost (credit)	(1,323)	(1,183)
Total cost (credit)	3,103	11,746
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	5,080	12,959
Prior service cost (credit)	(1,323)	(1,183)
Total cost (credit)	3,757	11,776
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	(654)	(30)
Prior service cost (credit)	0	0
Total cost (credit)	$ (654)	$ (30)