Concentration of Risk and Segment Data | Concentration of Risk and Segment Data Concentration of Risk Sales of the Company’s products are concentrated among specific customers. During the nine months ended May 31, 2020 , the Company’s five largest customers accounted for approximately 47% of its net revenue and 72 customers accounted for approximately 90% of its net revenue. Sales to these customers were reported in the Electronics Manufacturing Services (“EMS”) and Diversified Manufacturing Services (“DMS”) operating segments. The Company procures components from a broad group of suppliers. Some of the products manufactured by the Company require one or more components that are available from only a single source. Segment Data Net revenue for the operating segments is attributed to the segment in which the service is performed. An operating segment’s performance is evaluated based on its pre-tax operating contribution, or segment income. Segment income is defined as net revenue less cost of revenue, segment selling, general and administrative expenses, segment research and development expenses and an allocation of corporate manufacturing expenses and selling, general and administrative expenses. Segment income does not include amortization of intangibles, stock-based compensation expense and related charges, restructuring, severance and related charges, distressed customer charges, acquisition and integration charges, impairment on securities, loss on disposal of subsidiaries, settlement of receivables and related charges, impairment of notes receivable and related charges, restructuring of securities loss, goodwill impairment charges, business interruption and impairment charges, net, income (loss) from discontinued operations, gain (loss) on sale of discontinued operations, other expense (excluding certain components of net periodic benefit cost), interest income, interest expense, income tax expense or adjustment for net income (loss) attributable to noncontrolling interests. Transactions between operating segments are generally recorded at amounts that approximate those at which we would transact with third parties. The following table presents the Company’s revenues disaggregated by segment (in thousands): Three months ended May 31, 2020 May 31, 2019 EMS DMS Total EMS DMS Total Timing of transfer Point in time $ 963,512 $ 1,380,477 $ 2,343,989 $ 699,825 $ 1,156,213 $ 1,856,038 Over time 2,949,416 1,042,237 3,991,653 3,288,664 990,900 4,279,564 Total $ 3,912,928 $ 2,422,714 $ 6,335,642 $ 3,988,489 $ 2,147,113 $ 6,135,602 Nine months ended May 31, 2020 May 31, 2019 EMS DMS Total EMS DMS Total Timing of transfer Point in time $ 3,340,992 $ 4,391,837 $ 7,732,829 $ 1,957,349 $ 4,722,696 $ 6,680,045 Over time 8,819,442 3,414,152 12,233,594 9,338,970 2,689,852 12,028,822 Total $ 12,160,434 $ 7,805,989 $ 19,966,423 $ 11,296,319 $ 7,412,548 $ 18,708,867 The following table sets forth operating segment information (in thousands): Three months ended Nine months ended May 31, 2020 May 31, 2019 May 31, 2020 May 31, 2019 Segment income and reconciliation of income before income tax EMS $ 102,372 $ 130,869 $ 291,902 $ 303,618 DMS 69,712 54,896 316,945 326,866 Total segment income $ 172,084 $ 185,765 $ 608,847 $ 630,484 Reconciling items: Amortization of intangibles (13,178 ) (7,610 ) (42,895 ) (23,033 ) Stock-based compensation expense and related charges (16,882 ) (14,506 ) (62,214 ) (47,452 ) Restructuring, severance and related charges (69,150 ) (9,340 ) (144,005 ) (16,182 ) Distressed customer charge — — (14,963 ) — Business interruption and impairment charges, net (1) (4,574 ) — (4,574 ) 2,860 Acquisition and integration charges (6,119 ) (13,391 ) (30,005 ) (35,066 ) Impairment on securities — — (12,205 ) — Other expense (net of periodic benefit cost) (8,399 ) (14,084 ) (32,673 ) (39,391 ) Interest income 1,864 6,758 13,144 15,897 Interest expense (41,873 ) (50,514 ) (132,967 ) (139,326 ) Income before income tax $ 13,773 $ 83,078 $ 145,490 $ 348,791 (1) Charges for the three and nine months ended May 31, 2020, relate to a flood that impacted our facility in Huangpu, China. Charges, net of insurance proceeds of $2.9 million for the nine months ended May 31, 2019 , relate to business interruption and asset impairment costs associated with damage from Hurricane Maria, which impacted our operations in Cayey, Puerto Rico. As of May 31, 2020 , the Company operated in 31 countries worldwide. Sales to unaffiliated customers are based on the Company location that maintains the customer relationship and transacts the external sale. The following tables set forth external net revenue, net of intercompany eliminations, and long-lived asset information where individual countries represent a material portion of the total (in thousands): ` Three months ended Nine months ended May 31, 2020 May 31, 2019 May 31, 2020 May 31, 2019 External net revenue: Singapore $ 1,470,283 $ 1,324,901 $ 4,717,568 $ 5,232,505 Mexico 1,165,154 1,200,555 3,510,110 3,248,757 China 1,140,270 1,261,707 3,263,591 3,779,162 Malaysia 378,106 427,858 1,374,335 1,221,819 Vietnam 222,477 196,443 651,255 516,801 Other 908,906 892,812 2,966,952 2,690,987 Foreign source revenue 5,285,196 5,304,276 16,483,811 16,690,031 U.S. 1,050,446 831,326 3,482,612 2,018,836 Total $ 6,335,642 $ 6,135,602 $ 19,966,423 $ 18,708,867 May 31, 2020 August 31, 2019 Long-lived assets: China $ 1,490,313 $ 1,579,904 Mexico 393,079 418,641 Malaysia 223,618 154,386 Switzerland 219,290 158 Singapore 145,249 156,028 Taiwan 115,436 123,608 Vietnam 109,371 85,728 Hungary 100,568 85,809 Other 451,396 462,261 Long-lived assets related to foreign operations 3,248,320 3,066,523 U.S. 1,159,594 1,146,335 Total $ 4,407,914 $ 4,212,858 |