Variable Interest Entities (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
Schedule of Carrying Amount and Maximum Exposure to Loss
Carrying Amount	$ 48,260	$ 56,300
Maximum Exposure to Loss	85,055	96,675
Real Estate Joint Ventures [Member]
Schedule of Carrying Amount and Maximum Exposure to Loss
Carrying Amount	24,089	35,551
Maximum Exposure to Loss	24,089	35,551
Affordable Housing Real Estate Joint Ventures [Member]
Schedule of Carrying Amount and Maximum Exposure to Loss
Carrying Amount	24,171	20,749
Maximum Exposure to Loss	$ 60,966	$ 61,124