Real Estate Properties | Real Estate Properties As of June 30, 2018 , we owned 267 properties with a total of approximately 28,780,000 rentable square feet, including 226 buildings, leasable land parcels and easements with a total of approximately 16,834,000 rentable square feet that are primarily industrial lands located on the island of Oahu, HI, or our Hawaii Properties, and 41 buildings with a total of approximately 11,946,000 rentable square feet that are industrial and logistics properties located in 24 other states, or our Mainland Properties. We operate in one business segment: ownership and leasing of properties that include buildings and leased industrial lands. For both the three months ended June 30, 2018 and 2017, approximately 60.2% , of our total revenues were from our Hawaii Properties. For the six months ended June 30, 2018 and 2017, approximately 60.4% and 60.0% , respectively, of our total revenues were from our Hawaii Properties. In addition, two subsidiaries of Amazon.com, Inc., which are tenants of our Mainland Properties, accounted for $ 3,963 , or 10.1% , and $ 3,892 , or 10.1% , of our total revenues for the three months ended June 30, 2018 and 2017, respectively, and $ 8,230 , or 10.3% , and $ 8,037 , or 10.3% , of our total revenues for the six months ended June 30, 2018 and 2017, respectively. During the six months ended June 30, 2018 , we acquired one property in Doral, FL with 240,283 rentable square feet for a purchase price of $43,326 , including acquisition related costs of $251 . This property was acquired and simultaneously leased back to the seller. This acquisition was accounted for as an acquisition of assets. We allocated the purchase price of this acquisition based on the estimated fair values of the acquired assets as follows: Rentable Number of Square Purchase Building and Date Location Properties Feet Price Land Improvements June 27, 2018 Doral, FL 1 240,283 $ 43,326 $ 15,225 $ 28,101 During the six months ended June 30, 2018 , we committed $ 608 for expenditures related to tenant improvements and leasing costs for approximately 514,000 square feet of leases executed during the period. Committed but unspent tenant related obligations based on existing leases as of June 30, 2018 were $272 . In July 2018, we entered an agreement to acquire a single tenant, net leased property located in Upper Marlboro, MD with approximately 221,000 rentable square feet for a purchase price of $29,250 , excluding acquisition related costs. This acquisition is expected to occur before the end of the third quarter of 2018. This acquisition is subject to conditions; accordingly, we cannot be sure that we will acquire this property, that the acquisition will not be delayed or that the terms will not change. Certain of our industrial lands in Hawaii may require environmental remediation, especially if the use of those lands is changed; however, we do not have any present plans to change the use of those lands or to undertake this environmental remediation. As of both June 30, 2018 and December 31, 2017, accrued environmental remediation costs of $7,002 were included in accounts payable and other liabilities in our condensed consolidated balance sheets. These accrued environmental remediation costs relate to maintenance of our properties for current uses, and, because of the indeterminable timing of the remediation, these amounts have not been discounted to present value. In general, we do not have any insurance designated to limit any losses that we may incur as a result of known or unknown environmental conditions which are not caused by an insured event, such as fire or flood, although some of our tenants may maintain such insurance that may benefit us. Although we do not believe that there are environmental conditions at any of our properties that will have a material adverse effect on us, we cannot be sure that such conditions are not present at our properties or that costs we incur to remediate any contamination will not have a material adverse effect on our business or financial condition. Charges for environmental remediation costs, if any, are included in other operating expenses in our condensed consolidated statements of comprehensive income. |