EMPLOYEE BENEFIT PLANS (Detail) - Actual and weighted-average assets allocation for qualified benefit plans	12 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Weighted Average Asset Allocations	100.00%	100.00%
Target Plan Asset Allocations	100.00%
Equity Securities [Member]
Weighted Average Asset Allocations	66.00%	55.00%
Target Plan Asset Allocations	63.00%
Fixed Income Funds [Member]
Weighted Average Asset Allocations	29.00%	41.00%
Target Plan Asset Allocations	37.00%
Other Asset Categories [Member]
Weighted Average Asset Allocations	5.00%	4.00%
Target Plan Asset Allocations	0.00%

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph d(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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Balance Type:	na
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