SUPPLEMENTAL BALANCE SHEET INFORMATION (Tables)

12 Months Ended

Sep. 30, 2011

SUPPLEMENTAL BALANCE SHEET INFORMATION

Schedule of supplemental balance sheet information, reflecting activity in the entity's reserve for bad debt

September 30,		2011			2010			2009
			(in thousands)
Reserve for bad debt:
	Balance at October 1,	$	830		$	659		$	1,331
	Provision for (recovery of) bad debt		106			206			(645	)
	Write-off of bad debt		(160	)		(35	)		(27	)
	Balance at September 30,	$	776		$	830		$	659

Schedule of supplemental balance sheet information, accounts receivable, prepaid expenses, accrued liabilities and long-term liabilities

September 30,			2011		2010
				(in thousands)
Accounts receivable, net of reserve:
	Trade receivables		$	460,540	$	409,920
	Income tax			—		47,739
		Total accounts receivable, net of reserve	$	460,540	$	457,659
Prepaid expenses and other:
	Restricted cash		$	16,015	$	12,848
	Prepaid insurance			10,117		9,196
	Deferred mobilization			8,512		14,430
	Prepaid value added tax			3,884		15,481
	Other			11,208		12,216
		Total prepaid expenses and other	$	49,736	$	64,171
Accrued liabilities:
	Accrued operating costs		$	50,415	$	23,436
	Payroll and employee benefits			43,077		33,392
	Taxes payable, other than income tax			37,789		44,934
	Accrued income taxes			17,075		—
	Deferred mobilization			11,281		13,522
	Self-insurance liabilities			5,452		4,135
	Deferred income			4,073		6,438
	Other			23,736		18,255
		Total accrued liabilities	$	192,898	$	144,112
Noncurrent liabilities – Other:
	Pension and other non-qualified retirement plans		$	50,225	$	51,690
	Self-insurance liabilities			13,780		5,328
	Deferred mobilization			12,033		7,816
	Deferred income			10,569		14,983
	Uncertain tax positions including interest and penalties			9,829		6,755
	Other			7,849		5,034
		Total noncurrent liabilities – other	$	104,285	$	91,606