Quarterly report pursuant to Section 13 or 15(d)

Additional Financial Statement Information - Other Balance Sheet information (Details)

v3.23.2
Additional Financial Statement Information - Other Balance Sheet information (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Other Receivables    
Insurance and Third Party Receivables for Remediation Expenses $ 4,233 $ 3,600
Reimbursable Research and Development Receivable 1,578  
Reimbursable Projects and Other 2,921 754
Total Other Receivables 8,732 4,354
Prepaids and Deposits    
Prepaid Insurance and Other 4,179 5,744
Deposits 43 61
Total Prepaids and Deposits 4,222 5,805
Accrued and Other Current Liabilities    
Accrued Operating Expense 31,615 28,877
Accrued Capital Costs 20,504 16,161
Accrued Interest 7,722 8,262
Accrued Compensation 5,076 4,809
Lease Liabilities $ 1,185 $ 1,176
Current Lease Liabilities, Classification Total Accrued and Other Current Liabilities Total Accrued and Other Current Liabilities
Asset Retirement Obligation $ 762 $ 2,242
Held for Sale Liability 554  
Other 6,281 3,884
Total Accrued and Other Current Liabilities 73,699 65,411
Other Long-Term Liabilities    
Noncurrent Lease Liabilities 8,116 7,719
Contingent Consideration Liability 2,351 2,702
Total Other Long-Term Liabilities $ 10,467 $ 10,421