Quarterly report [Sections 13 or 15(d)]

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

v3.25.1
Additional Financial Statement Information - Other Balance Sheet information (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Other Receivables    
Insurance and Third-Party Receivables for Remediation Expenses $ 5,722 $ 5,149
Reimbursable Research and Development Receivable 1,569 207
Property Insurance Receivable 2,337 2,337
Financing Receivable 2,467 3,242
Reimbursable Projects 1,778 2,894
Total Other Receivables 13,873 13,829
Other Current Assets    
Prepaid Insurance 5,011 7,257
Income Tax Receivable 2,205  
Prepaids and Deposits 3,279 3,161
Total Other Current Assets 10,495 10,418
Accrued and Other Current Liabilities    
Accrued Operating Expense 27,320 28,897
Accrued Capital Costs 8,575 4,023
Accrued Interest 626 8,067
Accrued Compensation 5,118 12,651
Accrued General and Administrative Expense 2,881 2,244
Sales Tax Payable 2,208 12,721
Operating Lease Liabilities $ 1,530 $ 1,568
Current Operating Lease Liabilities, Classification Total Accrued and Other Current Liabilities Total Accrued and Other Current Liabilities
Finance Lease Liabilities $ 743 $ 571
Current Financing Lease Liabilities, Classification Total Accrued and Other Current Liabilities Total Accrued and Other Current Liabilities
Contingent Consideration Liability $ 1,961 $ 1,024
Advance Billings for Reimbursable Research and Development Expense 813 431
Tax-Related Partnership Distribution Payable 1,340 1,340
Other 2,390 3,802
Total Accrued and Other Current Liabilities 55,505 77,339
Other Long-Term Liabilities    
Noncurrent Operating Lease Liabilities $ 13,751 $ 14,040
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Total Other Long-Term Liabilities Total Other Long-Term Liabilities
Noncurrent Finance Lease Liabilities $ 2,139 $ 1,747
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Total Other Long-Term Liabilities Total Other Long-Term Liabilities
Contingent Consideration Liability $ 1,292 $ 1,548
Total Other Long-Term Liabilities $ 17,182 $ 17,335