NOTE 15SEGMENT INFORMATION As of March 31, 2020 , we operated through three reportable business segments: triple-net leased properties, senior living operations and office operations. In our triple-net leased properties segment, we invest in and own senior housing and healthcare properties throughout the United States and the United Kingdom and lease those properties to healthcare operating companies under triple-net or absolute-net leases that obligate the tenants to pay all property-related expenses. In our senior living operations segment, we invest in senior housing communities throughout the United States and Canada and engage independent operators, such as Atria and Sunrise, to manage those communities. In our office operations segment, we primarily acquire, own, develop, lease and manage MOBs and research and innovation centers throughout the United States. Information provided for all other includes income from loans and investments and other miscellaneous income and various corporate-level expenses not directly attributable to any of our three reportable business segments. Assets included in all other consist primarily of corporate assets, including cash, restricted cash, loans receivable and investments, and miscellaneous accounts receivable. Our chief operating decision makers evaluate performance of the combined properties in each reportable business segment and determine how to allocate resources to those segments, in significant part, based on segment NOI and related measures. We define segment NOI as total revenues, less interest and other income, property-level operating expenses and office building services costs. We consider segment NOI useful because it allows investors, analysts and our management to measure unlevered property-level operating results and to compare our operating results to the operating results of other real estate companies between periods on a consistent basis. In order to facilitate a clear understanding of our historical consolidated operating results, segment NOI should be examined in conjunction with net income attributable to common stockholders as presented in our Consolidated Financial Statements and other financial data included elsewhere in this Quarterly Report on Form 10-Q. Interest expense, depreciation and amortization, general, administrative and professional fees, income tax expense and other non-property specific revenues and expenses are not allocated to individual reportable business segments for purposes of assessing segment performance. There are no intersegment sales or transfers. Summary information by reportable business segment is as follows: For the Three Months Ended March 31, 2020 Triple-Net Leased Properties Senior Living Operations Office Operations All Other Total (In thousands) Revenues: Rental income $ 194,862 $  $ 208,395 $  $ 403,257 Resident fees and services  576,770   576,770 Office building and other services revenue   2,174 954 3,128 Income from loans and investments    24,046 24,046 Interest and other income    4,853 4,853 Total revenues $ 194,862 $ 576,770 $ 210,569 $ 29,853 $ 1,012,054 Total revenues $ 194,862 $ 576,770 $ 210,569 $ 29,853 $ 1,012,054 Less: Interest and other income    4,853 4,853 Property-level operating expenses 6,331 410,131 64,506  480,968 Office building services costs   727  727 Segment NOI $ 188,531 $ 166,639 $ 145,336 $ 25,000 525,506 Interest and other income 4,853 Interest expense (116,696 ) Depreciation and amortization (248,837 ) General, administrative and professional fees (42,535 ) Merger-related expenses and deal costs (8,218 ) Other (3,708 ) Loss from unconsolidated entities (10,876 ) Gain on real estate dispositions 226,225 Income tax benefit 149,016 Income from continuing operations 474,730 Net income 474,730 Net income attributable to noncontrolling interests 1,613 Net income attributable to common stockholders $ 473,117 For the Three Months Ended March 31, 2019 Triple-Net Leased Properties Senior Living Operations Office Operations All Other Total (In thousands) Revenues: Rental income $ 200,068 $  $ 201,428 $  $ 401,496 Resident fees and services  521,447   521,447 Office building and other services revenue   1,775 743 2,518 Income from loans and investments    17,126 17,126 Interest and other income    287 287 Total revenues $ 200,068 $ 521,447 $ 203,203 $ 18,156 $ 942,874 Total revenues $ 200,068 $ 521,447 $ 203,203 $ 18,156 $ 942,874 Less: Interest and other income    287 287 Property-level operating expenses 7,433 360,986 62,085  430,504 Office building services costs   633  633 Segment NOI $ 192,635 $ 160,461 $ 140,485 $ 17,869 511,450 Interest and other income 287 Interest expense (110,619 ) Depreciation and amortization (235,920 ) General, administrative and professional fees (40,760 ) Loss on extinguishment of debt, net (405 ) Merger-related expenses and deal costs (2,180 ) Other (23 ) Loss from unconsolidated entities (946 ) Gain on real estate dispositions 5,447 Income tax benefit 1,257 Income from continuing operations 127,588 Net income 127,588 Net income attributable to noncontrolling interests 1,803 Net income attributable to common stockholders $ 125,785 Capital expenditures, including investments in real estate property and development project expenditures, by reportable business segment are as follows: For the Three Months Ended March 31, 2020 2019 (In thousands) Capital expenditures: Triple-net leased properties $ 7,685 $ 8,591 Senior living operations 51,884 26,959 Office operations 140,988 49,154 Total capital expenditures $ 200,557 $ 84,704 Our portfolio of properties and mortgage loan and other investments are located in the United States, Canada and the United Kingdom. Revenues are attributed to an individual country based on the location of each property. Geographic information regarding our operations is as follows: For the Three Months Ended March 31, 2020 2019 (In thousands) Revenues: United States $ 908,193 $ 888,281 Canada 96,970 47,597 United Kingdom 6,891 6,996 Total revenues $ 1,012,054 $ 942,874 As of March 31, 2020 As of December 31, 2019 (In thousands) Net real estate property: United States $ 18,089,200 $ 18,631,352 Canada 2,631,249 2,830,850 United Kingdom 246,827 266,885 Total net real estate property $ 20,967,276 $ 21,729,087