CONSOLIDATED STATEMENT OF INCOME (PARENTHETICALS) (USD $) In Thousands	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Statement of Income Parentheticals
Discontinued Operation Tax Effect Of Income Loss From Discontinued Operation During Phase Out Period	$ 5,502	$ 4,425	$ 2,929

Income tax expense (benefit) attributable to income (loss) from discontinued operations during the phase-out period.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 144

-Paragraph 43

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 144

-Paragraph 47

-Subparagraph c

Name:	us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration