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Other Financial Information (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017
Accrued expenses and other current liabilities |  |
Accrued salaries and benefits | $ 900,800 | $ 1,018,500
Accrued contract costs | 833,500 | 911,900
Other accrued expenses | 337,900 | 315,100
Total accrued expenses | 2,072,155 | 2,245,519
Restructuring charges | 22,400 |
Payments for restructuring charges | 9,600 |
Accounts receivable-net | 5,313,672 | 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 | $ 537,700 | $ 547,900

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