Related Parties	3 Months Ended
Mar. 31, 2013
Related Party Transactions [Abstract]
Related Parties	Related Parties Through our management activities and transactions with our real estate joint ventures and partnerships, we had net accounts receivable of $1.4 million and $1.8 million outstanding as of March 31, 2013 and December 31, 2012, respectively. We also had accounts payable and accrued expenses of $5.9 million and $6.3 million outstanding as of March 31, 2013 and December 31, 2012, respectively. For the three months ended March 31, 2013 and 2012, we recorded joint venture fee income of $1.4 million and $1.7 million, respectively. In February 2012, we sold our 47.8% unconsolidated joint venture interest in a Colorado development project to our partner with gross sales proceeds totaling $29.1 million, which includes the assumption of our share of debt, generating a gain of $3.5 million. In November 2012, we sold three unconsolidated joint venture interests, ranging from 20% to 50%, in nine industrial properties to our partner with gross sales proceeds totaling $20.9 million, which includes the assumption of our share of debt, generating a gain of $8.6 million.

Related Parties

3 Months Ended

Mar. 31, 2013

Through our management activities and transactions with our real estate joint ventures and partnerships, we had net accounts receivable of $1.4 million and $1.8 million outstanding as of March 31, 2013 and December 31, 2012, respectively. We also had accounts payable and accrued expenses of $5.9 million and $6.3 million outstanding as of March 31, 2013 and December 31, 2012, respectively. For the three months ended March 31, 2013 and 2012, we recorded joint venture fee income of $1.4 million and $1.7 million, respectively.

In February 2012, we sold our 47.8% unconsolidated joint venture interest in a Colorado development project to our partner with gross sales proceeds totaling $29.1 million, which includes the assumption of our share of debt, generating a gain of $3.5 million.

In November 2012, we sold three unconsolidated joint venture interests, ranging from 20% to 50%, in nine industrial properties to our partner with gross sales proceeds totaling $20.9 million, which includes the assumption of our share of debt, generating a gain of $8.6 million.