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Other Noncurrent Liabilities (Tables)
 12 Months Ended
Dec. 31, 2022
Other Liabilities, Noncurrent [Abstract]  
Other Noncurrent Liabilities
Other noncurrent liabilities consist of the following at December 31, 2022 and 2021 (in thousands):
December 31,
20222021
Transition tax on foreign earnings(a)
$191,708 $234,180 
Operating leases(b)
99,269 126,997 
Liabilities related to uncertain tax positions(c)
83,670 27,719 
Executive deferred compensation plan obligation27,270 32,491 
Environmental liabilities(d)
31,272 37,540 
Asset retirement obligations(d)
79,522 76,196 
Tax indemnification liability(e)
66,137 66,799 
Other(f)
57,748 61,776 
Total$636,596 $663,698 
(a)Noncurrent portion of one-time transition tax on foreign earnings. See Note 21, “Income Taxes,” for additional information.
(b)See Note 18, “Leases.”
(c)See Note 21, “Income Taxes.”
(d)See Note 17, “Commitments and Contingencies.”
(e)Indemnification of certain income and non-income tax liabilities primarily associated with the Chemetall Surface Treatment entities sold in 2017.
(f)No individual component exceeds 5% of total liabilities.