Secured Loans Receivable - Schedule of Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Jun. 30, 2024 |
|---|---|---|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Secured loans (current) | $ 94,037 | $ 113,067 |
| Bullion and Numismatic and Semi-numismatic and Graded Sports Memorabilia | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Secured loans (current) | $ 94,037 | $ 113,067 |
| Secured loans (current), percentage | 100.00% | 100.00% |
| Loan-to-value of 75% or More | Bullion and Numismatic and Semi-numismatic and Graded Sports Memorabilia | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Secured loans (current) | $ 11,101 | $ 11,870 |
| Secured loans (current), percentage | 11.80% | 10.50% |
| Loan-to-value of Less than 75% | Bullion and Numismatic and Semi-numismatic and Graded Sports Memorabilia | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Secured loans (current) | $ 82,936 | $ 101,197 |
| Secured loans (current), percentage | 88.20% | 89.50% |