ACQUISITIONS (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Oct. 17, 2011
Business Acquisition, Purchase Price Allocation, Assets Acquired			$ 22,432
Business Acquisition Revenue Exceeding	40,000
Outstanding Stock Purchased On Cash And Debit Free Basis		$ 542,000

The amount of acquisition cost of a business combination allocated to assets acquired.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 37

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_BusinessAcquisitionPurchasePriceAllocationAssetsAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant