Operating Segments information reconciliation with Consolidated Balance Sheets (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012
Segment assets	$ 852,033	$ 889,254
Investments in real estate partnerships Operating Segments	5,415	6,230
Other assets Operating Segments	121,926	149,684
Assets held for sale Operating Segments	20,237	69,891
Total assets Operating Segments	$ 999,611	$ 1,115,059