Other Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Mar. 31, 2024 |
Mar. 31, 2023 |
Mar. 31, 2024 |
Mar. 31, 2023 |
Mar. 21, 2024 |
Sep. 30, 2023 |
|
| Accrued expenses and other current liabilities | ||||||
| Accrued salaries and benefits | $ 569,600 | $ 569,600 | $ 599,800 | |||
| Accrued contract costs | 1,416,700 | 1,416,700 | 1,340,400 | |||
| Other accrued expenses | 398,900 | 398,900 | 347,300 | |||
| Total | 2,385,201 | 2,385,201 | 2,287,546 | |||
| Restructuring costs | 35,465 | $ 3,973 | 51,645 | $ 41,432 | ||
| Accrued restructuring expenses | 7,300 | $ 30,700 | 7,300 | 30,700 | ||
| Dividend paid per share in cash | $ 0.22 | |||||
| Accrued and unpaid dividend | 32,100 | 32,100 | ||||
| Personnel and other costs | ||||||
| Accrued expenses and other current liabilities | ||||||
| Restructuring costs | 38,600 | 39,000 | ||||
| Real estate costs | ||||||
| Accrued expenses and other current liabilities | ||||||
| Restructuring costs | 13,000 | $ 2,400 | ||||
| Professional liability accrual | ||||||
| Accrued expenses and other current liabilities | ||||||
| Accrued contract costs | $ 793,800 | $ 793,800 | $ 809,600 | |||