Variable Interest Entities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2010
Variable Interest Entities [Abstract]
Non-recourse loan assumed	$ 15,762
Other income	669
Proceed from sale of interest VIE	50
Net carrying value of assets and liabilities	1,728
Expenses on sale of interest in VIE	1,109
Payment to limited partner	800
Tax credit guarantee	3,000
Secondary tax credit guarantee	$ 3,000