Other Noncurrent Liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Other Liabilities, Noncurrent [Abstract]

Other Noncurrent Liabilities

Other noncurrent liabilities consist of the following at December 31, 2018 and 2017 (in thousands):

	December 31,
	2018		2017
Transition tax on foreign earnings(a)	$	317,745	$	394,878
Liabilities related to uncertain tax positions(b)	22,877		24,369
Executive deferred compensation plan obligation	26,292		25,494
Environmental liabilities(c)	40,376		37,518
Asset retirement obligations(c)	41,489		40,450
Tax indemnification liability(d)	45,347		42,707
Other(e)	32,816		33,758
Total	$	526,942	$	599,174

(a) Noncurrent portion of one-time transition tax on foreign earnings. See Note 20, “Income Taxes,” for additional information.

(b) See Note 20, “Income Taxes.”

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

(d) Indemnification of certain income and non-income tax liabilities associated with the Chemetall Surface Treatment entities sold, as well as the proposed settlement of an ongoing audit of a previously disposed business in Germany.

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