Net Gain on Disposition of Partial Interests in Rental Properties	6 Months Ended
Jul. 31, 2013
Net Gain on Disposition of Partial Interests in Rental Properties [Abstract]
Net Gain on Disposition of Partial Interests in Rental Properties	Net Gain on Disposition of Partial Interests in Rental Properties On March 29, 2011, the Company entered into joint venture agreements with an outside partner, an affiliated entity of Madison International Realty LLC. The outside partner invested in and received a 49% equity interest in 15 mature retail properties located in the New York City metropolitan area. For its 49% equity interests, the outside partner invested cash and assumed debt of $244,952,000, representing 49% of the nonrecourse mortgage debt on the 15 properties. As of January 31, 2012, the Company received proceeds of $178,286,000, primarily in the form of a loan. Based on the net amount of cash received, the outside partner’s minimum initial investment requirement of 20% was not met. Since the transaction did not qualify for full gain recognition, the installment method of gain recognition was applied and a net gain on disposition of partial interests in rental properties of $9,561,000 was recorded during the year ended January 31, 2012. As of January 31, 2013, the remaining gain of $114,465,000 continued to be deferred and was included in accounts payable, accrued expenses and other liabilities. During the three months ended July 31, 2013, the Company used distribution proceeds from the joint ventures to pay down a portion of the loan which increases the net cash received for purposes of measuring whether full gain recognition is appropriate. However, the outside partner's investment requirement was still not met and the installment method of gain recognition was applied, resulting in an additional net gain on disposition of partial interests in rental properties of $4,932,000 during the three and six months ended July 31, 2013. As of July 31, 2013, the remaining gain of $109,533,000 continued to be deferred and was included in accounts payable, accrued expenses and other liabilities.

Net Gain on Disposition of Partial Interests in Rental Properties

On March 29, 2011, the Company entered into joint venture agreements with an outside partner, an affiliated entity of Madison International Realty LLC. The outside partner invested in and received a 49% equity interest in 15 mature retail properties located in the New York City metropolitan area. For its 49% equity interests, the outside partner invested cash and assumed debt of $244,952,000, representing 49% of the nonrecourse mortgage debt on the 15 properties. As of January 31, 2012, the Company received proceeds of $178,286,000, primarily in the form of a loan. Based on the net amount of cash received, the outside partner’s minimum initial investment requirement of 20% was not met. Since the transaction did not qualify for full gain recognition, the installment method of gain recognition was applied and a net gain on disposition of partial interests in rental properties of $9,561,000 was recorded during the year ended January 31, 2012. As of January 31, 2013, the remaining gain of $114,465,000 continued to be deferred and was included in accounts payable, accrued expenses and other liabilities.

During the three months ended July 31, 2013, the Company used distribution proceeds from the joint ventures to pay down a portion of the loan which increases the net cash received for purposes of measuring whether full gain recognition is appropriate. However, the outside partner's investment requirement was still not met and the installment method of gain recognition was applied, resulting in an additional net gain on disposition of partial interests in rental properties of $4,932,000 during the three and six months ended July 31, 2013. As of July 31, 2013, the remaining gain of $109,533,000 continued to be deferred and was included in accounts payable, accrued expenses and other liabilities.