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SUPPLEMENTAL BALANCE SHEET INFORMATION (Tables) | 9 Months Ended
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Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Contract Assets and Liabilities | The following table provides information about contract assets (trade receivables and unbilled revenue, excluding allowances for credit losses), and fees invoiced in advance (customer deposits and deferred revenue):
| Balance at June 30, 2023 |  | Balance at September 30, 2022
Contract assets: Trade receivables | $ | 74,492 |  |  | $ | 88,867 |
Contract assets: Unbilled revenue | 16,644 |  |  | 17,474 |
Contract liabilities: Customer deposits | 32,409 |  |  | 39,222 |
Contract liabilities: Deferred revenue | 18,034 |  |  | 29,420
Trade receivables and contract assets, net consisted of the following:
| June 30, |  | September 30,
| 2023 |  | 2022
Trade receivables | $ | 74,492 |  |  | $ | 88,867 |
Unbilled revenue | 16,644 |  |  | 17,474 |
Total | 91,136 |  |  | 106,341 |
Less: Allowance for credit losses | (8,365) |  |  | (6,268) |
Trade receivables and contract assets, net of allowances for credit losses | $ | 82,771 |  |  | $ | 100,073 |
The composition of fees invoiced in advance is as follows:
| June 30, |  | September 30,
| 2023 |  | 2022
Customer deposits | $ | 32,409 |  |  | $ | 39,222 |
Deferred revenue | 18,034 |  |  | 29,420 |
Fees invoiced in advance | $ | 50,443 |  |  | $ | 68,642 |
Schedule of Inventory | Inventories, net consisted of the following:
| June 30, |  | September 30,
| 2023 |  | 2022
Raw materials | $ | 2,094 |  |  | $ | 1,757 |
Work in progress | 126 |  |  | 186 |
Finished goods | 4,805 |  |  | 4,933 |
Research Model Inventory | 50,481 |  |  | 68,055 |
Total | 57,506 |  |  | 74,931 |
Less: Obsolescence reserve | (3,586) |  |  | (3,490) |
Inventories, net | $ | 53,920 |  |  | $ | 71,441 |
Schedule of Other Current Assets | Prepaid expenses and other current assets consisted of the following:
| June 30, |  | September 30,
| 2023 |  | 2022
Advances to suppliers | $ | 23,828 |  |  | $ | 30,292 |
Prepaid research models | 2,906 |  |  | 3,575 |
Income tax receivable | 1,935 |  |  | 366 |
Other | 6,850 |  |  | 8,250 |
Prepaid expenses and other current assets | $ | 35,519 |  |  | $ | 42,483 |
Schedule of Supplemental Balance Sheet information Related to Other Assets | The composition of other assets is as follows:
| June 30, |  | September 30,
| 2023 |  | 2022
Long-term advances to suppliers | $ | 4,250 |  |  | $ | 2,894 |
Funded status of defined benefit plan | 3,019 |  |  | 1,573 |
Debt issuance costs - revolving credit facility | 341 |  |  | 1,411 |
Finance lease right-of-use assets, net | 47 |  |  | 79 |
Other | 1,685 |  |  | 1,567 |
Other assets | $ | 9,342 |  |  | $ | 7,524 |
Schedule of Accrued Liabilities | Accrued expenses consisted of the following:
| June 30, |  | September 30,
| 2023 |  | 2022
Accrued compensation | $ | 8,285 |  |  | $ | 17,460 |
Non-income taxes | 3,413 |  |  | 1,200 |
Accrued interest | 2,967 |  |  | 5,228 |
Accrued professional fees | 2,717 |  |  | 4,366 |
Other | 6,068 |  |  | 7,547 |
Accrued expenses and other liabilities | $ | 23,450 |  |  | $ | 35,801 |

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