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Components of Operating Expenses - Components of General and Administrative Expenses and Other Expenses (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Business Acquisition [Line Items] |  |
Fixed compensation expense | $ 16,257 | $ 15,359
Annual variable compensation expense | 2,917 | 4,005
Long-term incentive award expense | 6,487 | 7,942
Systems and consulting | 3,201 | 3,112
Office costs | 2,082 | 2,040
Accounting and legal | 1,217 | 919
Corporate costs | 872 | 929
Other | 1,536 | 1,249
Total General and Administrative Expenses | 34,569 | 35,555
Portfolio Management Costs | 3,597 | 3,510
Commissions | 881 | 828
Underwriting costs | 682 | 242
Transfer and holding costs | 674 | 219
Total Loan Acquisition Costs | 2,237 | 1,289
Amortization of purchase-related intangible assets | 2,805 | 3,107
Other | 556 | 577
Total Other Expenses | 3,361 | 3,684
Total Operating Expenses | 43,764 | 44,038
Severance and transition-related expenses | 2,000 | 1,000
Equity amortization expense | 1,000 | 100
Settlement in Common Stock |  |
Business Acquisition [Line Items] |  |
Long-term incentive award expense | 6,000 | 6,000
Settlement in Cash |  |
Business Acquisition [Line Items] |  |
Long-term incentive award expense | $ 1,000 | $ 2,000

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