13. SEGMENT INFORMATION Veritiv's business is organized under four reportable segments: Packaging, Facility Solutions, Print, and Publishing and Print Management ("Publishing"). This segment structure is consistent with the way the Chief Operating Decision Maker, who is Veritiv's Chief Executive Officer, makes operating decisions and manages the growth and profitability of the Companys business. The Company also has a Corporate &amp; Other category, which includes certain assets and costs not primarily attributable to any of the reportable segments, as well as the Veritiv logistics solutions business which provides transportation and warehousing solutions. The following tables present net sales, Adjusted EBITDA (earnings before interest, income taxes, depreciation and amortization, restructuring charges, net, integration and acquisition expenses and other similar charges including any severance costs, costs associated with warehouse and office openings or closings, consolidation, and relocation and other business optimization expenses, stock-based compensation expense, changes in the LIFO reserve, non-restructuring asset impairment charges, non-restructuring severance charges, non-restructuring pension charges, net, fair value adjustments related to contingent liabilities assumed in mergers and acquisitions and certain other adjustments), which is the metric management uses to assess operating performance of the segments, and certain other measures for each of the reportable segments and Corporate &amp; Other for the periods presented: (in millions) Packaging Facility Solutions Print Publishing Total Reportable Segments Corporate &amp; Other Total Three Months Ended June 30, 2019 Net sales $ 881.5 $ 311.7 $ 528.6 $ 203.5 $ 1,925.3 $ 32.9 $ 1,958.2 Adjusted EBITDA 65.5 8.3 12.3 5.6 91.7 (48.4 ) Depreciation and amortization 4.7 1.8 2.1 0.2 8.8 4.6 13.4 Restructuring charges, net 2.4 1.0 1.4 0.0 4.8 2.1 6.9 Three Months Ended June 30, 2018 Net sales $ 887.1 $ 334.4 $ 679.1 $ 238.3 $ 2,138.9 $ 33.0 $ 2,171.9 Adjusted EBITDA 64.4 7.6 19.4 4.8 96.2 (50.8 ) Depreciation and amortization 5.3 1.7 2.3 0.2 9.5 4.5 14.0 Restructuring charges, net 5.0 2.1 4.2 0.0 11.3 0.1 11.4 Six Months Ended June 30, 2019 Net sales $ 1,726.9 $ 610.2 $ 1,082.5 $ 413.6 $ 3,833.2 $ 66.5 $ 3,899.7 Adjusted EBITDA 113.7 12.5 19.5 10.4 156.1 (92.4 ) Depreciation and amortization 9.2 3.5 4.2 0.4 17.3 8.9 26.2 Restructuring charges, net 2.7 1.2 1.9 0.3 6.1 3.2 9.3 Six Months Ended June 30, 2018 Net sales $ 1,732.3 $ 655.0 $ 1,339.9 $ 476.4 $ 4,203.6 $ 69.3 $ 4,272.9 Adjusted EBITDA 118.0 11.7 33.1 11.6 174.4 (99.3 ) Depreciation and amortization 10.6 3.5 4.8 0.4 19.3 9.1 28.4 Restructuring charges, net 5.9 2.5 14.6 0.0 23.0 0.3 23.3 The table below presents a reconciliation of loss before income taxes as reflected in the Condensed Consolidated Statements of Operations to Adjusted EBITDA for the reportable segments: Three Months Ended June 30, Six Months Ended June 30, (in millions) 2019 2018 2019 2018 Loss before income taxes $ (11.9 ) $ (13.3 ) $ (45.4 ) $ (31.0 ) Interest expense, net 10.2 10.2 21.6 19.5 Depreciation and amortization 13.4 14.0 26.2 28.4 Restructuring charges, net 6.9 11.4 9.3 23.3 Stock-based compensation 4.3 5.1 9.0 10.7 LIFO reserve (decrease) increase (0.5 ) 8.7 2.9 14.4 Non-restructuring severance charges 1.4 0.5 2.7 1.8 Non-restructuring pension charges, net 6.6 0.0 6.6 (0.7 ) Integration and acquisition expenses 4.5 8.4 8.8 16.7 Fair value adjustment on TRA contingent liability 0.6 (0.2 ) 1.5 (0.4 ) Fair value adjustment on contingent consideration liability 7.7 (3.0 ) 13.1 (11.3 ) Escheat audit contingent liability   7.0  Other 0.1 3.6 0.4 3.7 Adjustment for Corporate &amp; Other 48.4 50.8 92.4 99.3 Adjusted EBITDA for reportable segments $ 91.7 $ 96.2 $ 156.1 $ 174.4