Related Parties	6 Months Ended
Jun. 30, 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 $1.5 million and $1.8 million outstanding as of June 30, 2013 and December 31, 2012, respectively. We also had accounts payable and accrued expenses of $6.0 million and $6.3 million outstanding as of June 30, 2013 and December 31, 2012, respectively. For the three months ended June 30, 2013 and 2012, we recorded joint venture fee income of $1.4 million and $1.6 million, respectively. For the six months ended June 30, 2013 and 2012, we recorded joint venture fee income of $2.8 million and $3.3 million, respectively. In May 2013, we sold our 10% interest in two unconsolidated tenancy-in-common arrangements to our partner for approximately $8.9 million. 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

6 Months Ended

Jun. 30, 2013

Through our management activities and transactions with our real estate joint ventures and partnerships, we had net accounts receivable of $1.5 million and $1.8 million outstanding as of June 30, 2013 and December 31, 2012, respectively. We also had accounts payable and accrued expenses of $6.0 million and $6.3 million outstanding as of June 30, 2013 and December 31, 2012, respectively. For the three months ended June 30, 2013 and 2012, we recorded joint venture fee income of $1.4 million and $1.6 million, respectively. For the six months ended June 30, 2013 and 2012, we recorded joint venture fee income of $2.8 million and $3.3 million, respectively.

In May 2013, we sold our 10% interest in two unconsolidated tenancy-in-common arrangements to our partner for approximately $8.9 million.

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.