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Supporting Financial Information - Accounts Receivable (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2015 | Mar. 31, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Sep. 30, 2008 | Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Total accounts receivable | $ 3,079 |  |  | $ 3,079 |  |  | $ 12,372
Less: Allowance for doubtful accounts | 0 |  |  | 0 |  |  | 0
Accounts Receivable, Net | 3,079 |  |  | 3,079 |  |  | 12,372
Revenue | 16,781 |  | $ 15,692 | 48,357 | $ 44,914 |  |
Reduction of accrued payroll related to retroactive wage and benefit payments |  |  |  | 8,677 | 0 |  |
Settlement of retroactive payment claim, net |  |  |  | 629 | $ 0 |  |
Billed Receivables |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Total accounts receivable | 2,523 |  |  | 2,523 |  |  | 2,569
Unbilled Receivables |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Total accounts receivable | 556 |  |  | 556 |  |  | 9,803
DVA |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Contract revenue nonrecurring |  |  |  |  |  | $ 10,800 |
Department of Labor | Unfavorable Regulatory Action |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Loss Contingency Accrual, Provision |  |  |  |  |  | $ 10,100 |
Employee-related Liabilities, Accrued Payroll Attributable to Retroactive Payment Cases | 0 |  |  | 0 |  |  | 8,677
Reduction of accrued payroll related to retroactive wage and benefit payments |  | $ 8,700 |  |  |  |  |
Settlement of retroactive payment claim, net |  |  |  | 629 |  |  |
Department of Labor | Unfavorable Regulatory Action | Unbilled Receivables |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Total accounts receivable | 0 | $ 9,306 |  | 0 |  |  |
Accrued Income Receivable | Unbilled Receivables |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |
Total accounts receivable | $ 556 |  |  | $ 556 |  |  | $ 497

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