Commitments And Contingencies (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Commitments And Contingencies [Abstract]
Accrued Insurance	$ 4,960
Reserve for construction defect liabilities	535
Estimated cost of completion of bonded project	44,963
Cash Collateral	500
Purchase Commitment Amount	4,395
Loss Contingency [Line Items]
Reserve for Uncollectable Surety Deposit	0	1,725
Other Commitments [Line Items]
Letters of Credit Outstanding, Amount	6,918
Insurance Related [Member]
Other Commitments [Line Items]
Letters of Credit Outstanding, Amount	6,347
Vendor Related [Member]
Other Commitments [Line Items]
Letters of Credit Outstanding, Amount	571
Surety Bond [Member]
Loss Contingency [Line Items]
Total settlement to be paid in monthly installments	2,200
Interest rate on settlement value gross	12.00%
Reserve for Uncollectable Surety Deposit		1,725
Receipt of payments	$ 550