Segment and Geographic Information We have four operating segments: Wholesale  North America, Europe, Specialty and Self Service. Our Wholesale  North America and Self Service operating segments are aggregated into one reportable segment, North America, because they possess similar economic characteristics and have common products and services, customers, and methods of distribution. Our reportable segments are organized based on a combination of geographic areas served and type of product lines offered. The reportable segments are managed separately as each business serves different customers (i.e. geographic in the case of North America and Europe and product type in the case of Specialty) and is affected by different economic conditions. Therefore, we present three reportable segments: North America, Europe and Specialty. The following tables present our financial performance by reportable segment for the periods indicated (in thousands): North America Europe Specialty Eliminations Consolidated Three Months Ended March 31, 2019 Revenue: Third Party $ 1,302,206 $ 1,445,541 $ 352,556 $  $ 3,100,303 Intersegment 103  1,181 (1,284 )  Total segment revenue $ 1,302,309 $ 1,445,541 $ 353,737 $ (1,284 ) $ 3,100,303 Segment EBITDA $ 176,636 $ 105,298 $ 37,959 $  $ 319,893 Depreciation and amortization (1) 22,239 47,011 6,957  76,207 Three Months Ended March 31, 2018 Revenue: Third Party $ 1,329,660 $ 1,040,430 $ 350,674 $  $ 2,720,764 Intersegment 183  1,118 (1,301 )  Total segment revenue $ 1,329,843 $ 1,040,430 $ 351,792 $ (1,301 ) $ 2,720,764 Segment EBITDA $ 177,713 $ 75,534 $ 41,969 $  $ 295,216 Depreciation and amortization (1) 21,228 32,757 7,081  61,066 (1) Amounts presented include depreciation and amortization expense recorded within cost of goods sold. The key measure of segment profit or loss reviewed by our chief operating decision maker, who is our Chief Executive Officer, is Segment EBITDA. Segment EBITDA includes revenue and expenses that are controllable by the segment. Corporate general and administrative expenses are allocated to the segments based on usage, with shared expenses apportioned based on the segment's percentage of consolidated revenue. We calculate Segment EBITDA as EBITDA excluding restructuring and acquisition related expenses, change in fair value of contingent consideration liabilities, other gains and losses related to acquisitions, equity method investments, or divestitures, equity in losses and earnings of unconsolidated subsidiaries, and impairment charges. EBITDA, which is the basis for Segment EBITDA, is calculated as net income, less net income (loss) attributable to noncontrolling interest, excluding depreciation, amortization, interest and income tax expense. The table below provides a reconciliation of Net Income to Segment EBITDA (in thousands): Three Months Ended March 31, 2019 2018 Net income $ 99,063 $ 152,763 Less: net income (loss) attributable to noncontrolling interest 1,015 (197 ) Net income attributable to LKQ stockholders 98,048 152,960 Add: Depreciation and amortization 71,002 56,458 Depreciation and amortization - cost of goods sold 5,205 4,608 Interest expense, net of interest income 36,089 28,515 Provision for income taxes 51,550 49,584 EBITDA 261,894 292,125 Subtract: Equity in (losses) earnings of unconsolidated subsidiaries (1) (39,549 ) 1,412 Add: Restructuring and acquisition related expenses (2) 3,307 4,054 Inventory step-up adjustment - acquisition related  403 Impairment of net assets held for sale (3) 15,023  Change in fair value of contingent consideration liabilities 120 46 Segment EBITDA $ 319,893 $ 295,216 (1) Refer to "Investments in Unconsolidated Subsidiaries" in Note 3, "Financial Statement Information ," for further information. (2) Refer to Note 5, "Restructuring and Acquisition Related Expenses ," for further information. (3) Refer to "Net Assets Held for Sale" in Note 3, "Financial Statement Information ," for further information. The following table presents capital expenditures by reportable segment (in thousands): Three Months Ended March 31, 2019 2018 Capital Expenditures North America $ 31,234 $ 29,662 Europe 19,577 28,815 Specialty 2,205 3,712 Total capital expenditures $ 53,016 $ 62,189 The following table presents assets by reportable segment (in thousands): March 31, December 31, 2019 2018 Receivables, net North America $ 445,056 $ 411,818 Europe 770,543 649,174 Specialty 137,892 93,091 Total receivables, net 1,353,491 1,154,083 Inventories North America 994,438 1,076,306 Europe 1,363,929 1,410,264 Specialty 333,639 349,505 Total inventories 2,692,006 2,836,075 Property, plant and equipment, net North America 574,046 570,508 Europe 546,725 562,600 Specialty 85,571 87,054 Total property, plant and equipment, net 1,206,342 1,220,162 Operating lease assets, net (1) North America 757,590  Europe 438,272  Specialty 83,714  Total operating lease assets, net 1,279,576  Equity method investments North America 17,551 16,404 Europe (2) 116,683 162,765 Total equity method investments 134,234 179,169 Other unallocated assets 6,000,261 6,003,913 Total assets $ 12,665,910 $ 11,393,402 (1) Refer to " Note 12, "Leases ," for further information. (2) Refer to "Investments in Unconsolidated Subsidiaries" in Note 3, "Financial Statement Information ," for further information. We report net receivables; inventories; net property , plant and equipment; net operating lease assets; and equity method investments by segment as that information is used by the chief operating decision maker in assessing segment performance. These assets provide a measure for the operating capital employed in each segment. Unallocated assets include cash and cash equivalents, prepaid and other current and noncurrent assets, goodwill and other intangibles. Our largest countries of operation are the U.S., followed by the U.K. and Germany. Our other European operations are located in the Netherlands, Italy, Czech Republic, Belgium, Poland, Slovakia, Austria, and other European countries. Our operations in other countries include operations in Canada, engine remanufacturing and bumper refurbishing operations in Mexico, an aftermarket parts freight consolidation warehouse in Taiwan, and administrative support functions in India. Our net sales are attributed to geographic area based on the location of the selling operation. The following table sets forth our revenue by geographic area (in thousands): Three Months Ended March 31, 2019 2018 Revenue United States $ 1,542,026 $ 1,560,027 United Kingdom 412,813 430,992 Germany 386,465 803 Other countries 758,999 728,942 Total revenue $ 3,100,303 $ 2,720,764 The following table sets forth our tangible long-lived assets by geographic area (in thousands): March 31, December 31, 2019 2018 Long-lived assets (1) United States $ 1,424,978 $ 620,125 Germany 305,442 217,476 United Kingdom 339,147 165,145 Other countries 416,351 217,416 Total long-lived assets $ 2,485,918 $ 1,220,162 (1) The increase in long-lived assets is related to the net operating lease assets added as a result of the adoption of the new lease accounting standard. Refer to " Note 12, "Leases ," for further information.