v3.22.4
Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]  
Activity in Recorded Environmental Liabilities Activity
We had the following activity in our recorded environmental liabilities for the years ended December 31, 2022, 2021 and 2020 (in thousands):
Year Ended December 31,
202220212020
Balance, beginning of year$46,617 $45,771 $42,592 
Expenditures(10,378)(2,752)(3,290)
Accretion of discount1,031 960 925 
Additions, liability releases and changes in estimates, net673 4,063 3,815 
Foreign currency translation adjustments and other302 (1,425)1,729 
Balance, end of year38,245 46,617 45,771 
Less amounts reported in Accrued expenses6,973 9,077 9,473 
Amounts reported in Other noncurrent liabilities$31,272 $37,540 $36,298 
Schedule of Change in Asset Retirement Obligation
The following is a reconciliation of our beginning and ending asset retirement obligation balances for 2022 and 2021 (in thousands):
Year Ended December 31,
20222021
Balance, beginning of year$79,213 $75,872 
Additions and changes in estimates(a)
2,919 4,832 
Accretion of discount1,996 2,098 
Liabilities settled(4,266)(3,605)
Foreign currency translation adjustments and other239 16 
Balance, end of year$80,101 $79,213 
Less amounts reported in Accrued expenses579 3,017 
Amounts reported in Other noncurrent liabilities$79,522 $76,196 
(a)    Additions in 2022 primarily related to updated estimates of asset retirement obligations in Australia. 2021 additions primarily related to the update of an estimate at a site formerly owned by Albemarle.
Letters of Credit and Guarantee Agreements The following table summarizes our letters of credit and guarantee agreements (in thousands):
20232024202520262027Thereafter
Letters of credit and other guarantees$127,235 $10,366 $1,770 $1,931 $344 $684