Other Noncurrent Liabilities

12 Months Ended

Dec. 31, 2016

Other Liabilities, Noncurrent [Abstract]

Other Noncurrent Liabilities

Other Noncurrent Liabilities:

Other noncurrent liabilities consist of the following at December 31, 2016 and 2015 (in thousands):

	December 31,
	2016		2015
Liabilities related to uncertain tax positions(a)	$	27,919	$	101,677
Executive deferred compensation plan obligation	22,037		21,631
Environmental liabilities(b)	32,595		29,993
Asset retirement obligations(b)	36,296		37,230
Tax indemnification liability(c)	38,255		—
Other(d)	37,708		48,573
Total(e)	$	194,810	$	239,104

(a) See Note 20, “Income Taxes.”

(b) See Note 17, “Commitments and Contingencies.”

(c) Indemnification of certain income and non-income tax liabilities associated with the Chemetall Surface Treatment entities sold.

(d) No individual component exceeds 5% of total liabilities.

(e) As of December 31, 2015, $20.2 million of Other noncurrent liabilities were classified as Liabilities held for sale in the consolidated balance sheets. See Note 3, “Divestitures,” for additional information.