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SUPPLEMENTAL BALANCE SHEET INFORMATION | 12 Months Ended
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Sep. 30, 2015
SUPPLEMENTAL BALANCE SHEET INFORMATION |
SUPPLEMENTAL BALANCE SHEET INFORMATION | NOTE 10 SUPPLEMENTAL BALANCE SHEET INFORMATION The following reflects the activity in our reserve for bad debt for 2015, 2014 and 2013:
|  | September 30, |
|  | 2015 |  | 2014 |  | 2013 |
|  | (in thousands) |
Reserve for bad debt: |  |  |  |  |  |  |  |  |  |
Balance at October 1, |  | $ | 4,597 |  | $ | 4,795 |  | $ | 942 |
Provision for (recovery of) bad debt |  |  | 6,034 |  |  | (200 | ) |  | 3,875 |
Write-off of bad debt |  |  | (4,450 | ) |  | 2 |  |  | (22 | )
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Balance at September 30, |  | $ | 6,181 |  | $ | 4,597 |  | $ | 4,795 |
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Prepaid expenses and other current assets, accrued liabilities and long-term liabilities at September 30 consist of the following:
|  | September 30, |
|  | 2015 |  | 2014 (as adjusted) |
|  | (in thousands) |
Prepaid expenses and other current assets: |  |  |  |  |  |  |
Restricted cash |  | $ | 29,998 |  | $ | 28,244 |
Prepaid insurance |  |  | 6,572 |  |  | 13,316 |
Deferred mobilization |  |  | 11,899 |  |  | 20,133 |
Prepaid income taxes |  |  | 7,320 |  |  | — |
Prepaid value added tax |  |  | 1,063 |  |  | 434 |
Other |  |  | 15,265 |  |  | 18,785 |
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Total prepaid expenses and other current assets |  | $ | 72,117 |  | $ | 80,912 |
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Accrued liabilities: |  |  |  |  |  |  |
Accrued operating costs |  | $ | 28,022 |  | $ | 91,408 |
Payroll and employee benefits |  |  | 35,938 |  |  | 88,128 |
Taxes payable, other than income tax |  |  | 38,992 |  |  | 42,538 |
Accrued income taxes |  |  | — |  |  | 10,611 |
Deferred mobilization |  |  | 18,230 |  |  | 18,103 |
Self-insurance liabilities |  |  | 10,796 |  |  | 8,118 |
Deferred income |  |  | 42,627 |  |  | 3,144 |
Other |  |  | 23,448 |  |  | 20,228 |
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Total accrued liabilities |  | $ | 198,053 |  | $ | 282,278 |
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Noncurrent liabilities—Other: |  |  |  |  |  |  |
Pension and other non-qualified retirement plans |  | $ | 28,430 |  | $ | 25,305 |
Self-insurance liabilities |  |  | 20,846 |  |  | 13,476 |
Deferred mobilization |  |  | 39,469 |  |  | 3,818 |
Uncertain tax positions including interest and penalties |  |  | 17,724 |  |  | 13,239 |
Other |  |  | 4,635 |  |  | 8,272 |
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Total noncurrent liabilities—other |  | $ | 111,104 |  | $ | 64,110 |
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