Divestitures Divestitures- Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations (net of tax)		$ 23,185	$ 11,030	$ (357,843)	$ 19,074
Goodwill		1,500,000		1,500,000		$ 1,500,000
Other intangibles, net of amortization		1,300,000		1,300,000		1,400,000
Chemetall Surface Treatment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		211,347	211,877	637,889	617,163
Cost of goods sold		100,061	118,712	333,832	368,381
Operating expenses, net		70,604	66,280	203,052	187,536
Interest and financing expenses	[1]	(9,864)	(12,763)	(29,912)	(38,792)
Other expense, net		134
Other (income), net			(656)	(1,636)	(3,011)
Income before income taxes		30,684	14,778	72,729	25,465
Income tax expense	[2]	7,499	3,748	430,572	6,391
Income (loss) from discontinued operations (net of tax)		23,185	$ 11,030	(357,843)	19,074
Current assets		255,577		255,577		237,447
Net property, plant and equipment		164,860		164,860		163,643
Goodwill		1,456,214		1,456,214		1,433,259
Other intangibles, net of amortization		1,328,799		1,328,799		1,349,179
All other noncurrent assets		25,143		25,143		25,374
Assets held for sale		3,230,593		3,230,593		3,208,902
Current liabilities		135,735		135,735		200,892
Deferred income taxes		355,368		355,368		351,465
All other noncurrent liabilities		111,319		111,319		112,742
Liabilities held for sale		$ 602,422		602,422		$ 665,099
Depreciation and amortization				35,194	57,567
Capital expenditures				$ 15,525	$ 11,521

[1] Interest and financing expenses included the allocation of interest expense not directly attributable to other operations as well as interest expense related to debt to be assumed by the buyer. The allocation of interest expense to discontinued operations was based on the ratio of net assets held for sale to the sum of total net assets plus consolidated debt.

[2] Income tax expense for the nine-month period ended September 30, 2016 included a discrete non-cash charge of ($381.5) million due to a change in the Company’s assertion over book and tax basis differences related to a U.S. entity being sold. In addition, Income tax expense for the three-month and nine-month periods ended September 30, 2016 included discrete non-cash benefits (charges) of $5.4 million and ($29.8) million, respectively, related to a change in the Company’s assertion over reinvestment of foreign undistributed earnings. The associated liability of $411.3 million has been recorded in Deferred income taxes on the condensed consolidated balance sheets as of September 30, 2016. Upon completion of the sale, the buyer will not assume these outside basis differences, thus the liability is ultimately the responsibility of the Company, and as such, this amount is not recorded as a Liability held for sale. The sale is expected to close in the fourth quarter of 2016, at which time any difference between the sales price and the proportionate carrying value of the interests being sold would be recognized.