Real Estate Properties | Real Estate Properties As of March 31, 2020 , we owned 301 properties with a total of approximately 43,759,000 rentable square feet, including 226 buildings, leasable land parcels and easements with a total of approximately 16,756,000 rentable square feet of primarily industrial lands located on the island of Oahu, HI, or our Hawaii Properties, and 75 properties with a total of approximately 27,003,000 rentable square feet of industrial properties located in 30 other states, or our Mainland Properties, including 12 properties with approximately 9,227,000 rentable square feet owned by a joint venture in which we own a 61% equity interest. We operate in one business segment: ownership and leasing of properties that include industrial and logistics buildings and leased industrial lands. For the three months ended March 31, 2020 and 2019, approximately 41.1% and 55.3% , respectively, of our rental income was from our Hawaii Properties. In addition, a subsidiary of Amazon.com, Inc., which is a tenant at certain of our Mainland Properties, accounted for $ 9,662 , or 15.0% , and $4,865 , or 10.6% , of our rental income for the three months ended March 31, 2020 and 2019, respectively. During the three months ended March 31, 2020 , we completed the acquisition of an industrial property containing 820,384 rentable square feet for a purchase price of $71,628 , including acquisition related costs of $147 . This acquisition was accounted for as an asset acquisition. We allocated the purchase price for this acquisition based on the estimated fair value of the acquired assets as follows: Number Rentable Buildings Acquired of Square Purchase and Real Estate Date Market Area Properties Feet Price Land Improvements Leases February 2020 Goodyear, AZ 1 820,384 $ 71,628 $ 11,214 $ 54,676 $ 5,738 1 820,384 $ 71,628 $ 11,214 $ 54,676 $ 5,738 During the three months ended March 31, 2020 , we committed $ 458 for expenditures related to tenant improvements and leasing costs for leases executed during the period for approximately 49,000 square feet. Committed but unspent tenant related obligations based on existing leases as of March 31, 2020 were $807 . 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. As of both March 31, 2020 and December 31, 2019 , accrued environmental remediation costs of $6,940 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 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. |