CONSOLIDATED STATEMENTS OF CASH FLOWS (Parentheticals) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Condensed Consolidated Statements of Cash Flows Parenthetical [Abstract]
Decrease in construction payables	$ 5,948	$ (3,829)	$ (5,516)

The increase (decrease) during the reporting period of obligations, not classified as trade payables, incurred and payable for the acquisition of merchandise, materials, supplies, and services pertaining to construction projects.

No definition available.

Name:	us-gaap_IncreaseDecreaseInConstructionPayables
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration