DISCONTINUED OPERATIONS (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	12 Months Ended
Jun. 30, 2010 Rig	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Operating results from discontinued operations
Loss before income taxes		$ (487)	$ (125,944)	$ (22,470)
Income tax provision (benefit)		(5)	3,825	4,531
Loss from discontinued operations		(482)	(129,769)	(27,001)
Assets and Liabilities from Discontinued Operations
Other current assets		7,529	10,270
Current liabilities		4,979	7,992
Noncurrent liabilities		2,550	2,278
Venezuelan subsidiary
Discontinued Operations, Additional Disclosures
Number of rigs owned subject to forceful acquisition	11
Operating results from discontinued operations
Revenue			13,534	50,298
Loss before income taxes		(487)	(125,944)	(22,470)
Income tax provision (benefit)		(5)	3,825	4,531
Loss from discontinued operations		(482)	(129,769)	(27,001)
Assets and Liabilities from Discontinued Operations
Other current assets		7,529	10,270
Total assets		7,529	10,270
Current liabilities		4,979	7,992
Noncurrent liabilities		2,550	2,278
Total liabilities		$ 7,529	$ 10,270

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The aggregate value (measured at the lower of net carrying value or fair value less cost of disposal) for assets of a disposal group, including a component of the entity (discontinued operation), to be sold or that has been disposed of through sale, as of the financial statement date.

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Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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The obligations arising from the sale, disposal, or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation).

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Carrying value as of the balance sheet date of current obligations (due less than one year or one operating cycle, if longer) arising from the sale, disposal or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation).

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Carrying value of noncurrent obligations (due more than one year or one operating cycle, whichever is longer) relating to the sale, disposal or planned sale in the near future (generally within one year) of a disposal group, including a component of the entity (discontinued operation), as of the balance sheet date.

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