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Additional Financial Statement Information - Other Balance Sheet information (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Other Receivables |  |
Insurance and Third Party Receivables for Remediation Expenses | $ 5,149 | $ 4,064
Reimbursable Research and Development Receivable | 207 | 1,450
Property Insurance Receivable | 2,337 | 4,000
Financing Receivable | 3,242 |
Reimbursable Projects | 2,894 | 3,253
Total Other Receivables | 13,829 | 12,767
Prepaids and Deposits |  |
Prepaid Insurance | 7,257 | 5,494
Other Prepaids and Deposits | 3,161 | 2,870
Total Prepaids and Deposits | 10,418 | 8,364
Accrued and Other Current Liabilities |  |
Accrued Operating Expense | 28,897 | 33,491
Accrued Capital Costs | 4,023 | 3,812
Accrued Interest | 8,067 | 8,510
Accrued Compensation | 12,651 | 10,118
Accrued General and Administrative Expense | 2,244 | 1,030
Sales Tax Payable | 12,721 | 1,645
Operating Lease Liabilities | $ 1,568 | $ 1,676
Current Operating Lease Liabilities, Classification | Total Accrued and Other Current Liabilities | Total Accrued and Other Current Liabilities
Finance Lease Liabilities | $ 571 |
Current Financing Lease Liabilities, Classification | Total Accrued and Other Current Liabilities | Total Accrued and Other Current Liabilities
Contingent Consideration Liability | $ 1,024 | $ 1,221
Advance Billings for Reimbursable Research and Development Expense | 431 | 1,120
Tax-Related Partnership Distribution Payable | 1,340 |
Other | 3,802 | 1,793
Total Accrued and Other Current Liabilities | 77,339 | 64,416
Other Long-Term Liabilities |  |
Noncurrent Operating Lease Liabilities | $ 14,040 | $ 14,716
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Total Other Long-Term Liabilities | Total Other Long-Term Liabilities
Noncurrent Finance Lease Liabilities | $ 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 | $ 1,548 | $ 2,078
Total Other Long-Term Liabilities | $ 17,335 | $ 16,794

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