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Other Financial Information (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Sep. 30, 2017
Accrued expenses and other current liabilities |  |
Accrued salaries and benefits | $ 950,000 | $ 1,018,500
Accrued contract costs | 872,200 | 911,900
Other accrued expenses | 345,500 | 315,100
Total accrued expenses | 2,167,692 | 2,245,519
Restructuring charges | 25,600 |
Payments for restructuring charges | 18,000 |
Accounts receivable-net | 5,208,918 | 5,127,743
Accelerated recovery of pension entitlement |  |
Accrued expenses and other current liabilities |  |
Accounts receivable-net | 50,000 |
Professional liability accrual |  |
Accrued expenses and other current liabilities |  |
Accrued contract costs | $ 546,600 | $ 547,900

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