Commercial Group Land Sale	3 Months Ended
Commercial Group Land Sale	Apr. 30, 2013
Real Estate [Abstract]
Commercial Group Land Sale	Commercial Group Land Sale On January 31, 2011, the Company closed on the sale of an approximate 10 acre land parcel and air rights to Rock Ohio Caesars Cleveland, LLC for development of a casino in downtown Cleveland for a sales price of $40,000,000. As of January 31, 2012, the Company received total cash deposits of $7,000,000 of the purchase price. The minimum initial investment still had not been met and accordingly, the cash deposits were recorded as a deposit liability under the deposit method in accordance with accounting guidance for sales of real estate and included in accounts payable, accrued expenses and other liabilities at January 31, 2012. During the three months ended April 30, 2012, the Company received the remaining cash proceeds of $33,000,000. With receipt of this payment, the buyer’s initial and continuing investment on the sale of this parcel was adequate for gain recognition under the full accrual method in accordance with accounting guidance for sales of real estate. As such, the entire sales price is included in revenues from real estate operations and the related cost of land is included in operating expenses, resulting in a gain on sale of $36,484,000 during the three months ended April 30, 2012.

The entire disclosure for certain real estate investment financial statements, real estate investment trust operating support agreements, real estate owned, retail land sales, time share transactions, as well as other real estate related disclosures.

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