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Segment Reporting and Geographic Information | 12 Months Ended
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Jun. 30, 2018
Segment Reporting [Abstract] |
SEGMENT REPORTING AND GEOGRAPHIC INFORMATION | NOTE 17 — SEGMENT REPORTING AND GEOGRAPHIC INFORMATION KLA-Tencor reports one reportable segment in accordance with the provisions of the authoritative guidance for segment reporting. Operating segments are defined as components of an enterprise about which separate financial information is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance. KLA-Tencor’s chief operating decision maker is its Chief Executive Officer. The Company is engaged primarily in designing, manufacturing and marketing process control and yield management solutions for the semiconductor and related nanoelectronics industries. All operating segments have been aggregated due to their inter-dependencies, commonality of long-term economic characteristics, products and services, the production processes, class of customer and distribution processes. The Company’s service products are an extension of the system product portfolio and provide customers with spare parts and fab management services (including system preventive maintenance and optimization services) to improve yield, increase production uptime and throughput, and lower the cost of ownership. Since the Company operates in one reportable segment, all financial segment information required by the authoritative guidance can be found in the consolidated financial statements. The Company’s significant operations outside the United States include manufacturing facilities in China, Germany, Israel and Singapore and sales, marketing and service offices in Japan, the rest of the Asia Pacific region and Europe. For geographical revenue reporting, revenues are attributed to the geographic location in which the customer is located. Long-lived assets consist of land, property and equipment, net and are attributed to the geographic region in which they are located. The following is a summary of revenues by geographic region, based on ship-to location, for the indicated periods (as a percentage of total revenues):
(Dollar amounts in thousands) | Year ended June 30,
2018 |  | 2017 |  | 2016
Revenues: |  |  |  |  |  |  |  |  |  |  |
Korea | $ | 1,178,601 |  |  | 29 | % |  | $ | 688,094 |  |  | 20 | % |  | $ | 367,905 |  |  | 12 | %
China | 643,033 |  |  | 16 | % |  | 412,098 |  |  | 12 | % |  | 430,074 |  |  | 14 | %
Japan | 638,358 |  |  | 16 | % |  | 351,202 |  |  | 10 | % |  | 444,216 |  |  | 15 | %
Taiwan | 636,363 |  |  | 16 | % |  | 1,104,307 |  |  | 32 | % |  | 894,557 |  |  | 30 | %
North America | 494,330 |  |  | 12 | % |  | 523,024 |  |  | 14 | % |  | 521,335 |  |  | 18 | %
Europe & Israel | 300,883 |  |  | 7 | % |  | 263,789 |  |  | 8 | % |  | 167,936 |  |  | 6 | %
Rest of Asia | 145,133 |  |  | 4 | % |  | 137,500 |  |  | 4 | % |  | 158,470 |  |  | 5 | %
Total | $ | 4,036,701 |  |  | 100 | % |  | $ | 3,480,014 |  |  | 100 | % |  | $ | 2,984,493 |  |  | 100 | %
The following is a summary of revenues by major products for the indicated periods (as a percentage of total revenues):
(Dollar amounts in thousands) | Year ended June 30,
2018 |  | 2017 |  | 2016
Revenues: |  |  |  |  |  |  |  |  |  |  |
Wafer Inspection | $ | 1,731,826 |  |  | 43 | % |  | $ | 1,601,190 |  |  | 46 | % |  | $ | 1,293,922 |  |  | 43 | %
Patterning | 1,116,022 |  |  | 28 | % |  | 917,178 |  |  | 26 | % |  | 772,045 |  |  | 26 | %
Global Service and Support (1) | 1,090,683 |  |  | 27 | % |  | 897,794 |  |  | 26 | % |  | 852,151 |  |  | 29 | %
Other | 98,170 |  |  | 2 | % |  | 63,852 |  |  | 2 | % |  | 66,375 |  |  | 2 | %
Total | $ | 4,036,701 |  |  | 100 | % |  | $ | 3,480,014 |  |  | 100 | % |  | $ | 2,984,493 |  |  | 100 | %
__________________ (1) The Global Service and Support revenues includes service revenues as presented in the consolidated statements of operations as well as certain product revenues, primarily revenues from the Company’s K-T Pro business. In the fiscal year ended June 30, 2018, one customers accounted for approximately 21% of total revenues. In the fiscal year ended June 30, 2017, two customers accounted for approximately 23% and 16% of total revenues. In the fiscal year ended June 30, 2016, two customers accounted for approximately 18% and 10% of total revenues. Long-lived assets by geographic region as of the dates indicated below were as follows:
| As of June 30,
(In thousands) | 2018 |  | 2017
Long-lived assets: |  |  |
United States | $ | 187,352 |  |  | $ | 191,096 |
Singapore | 47,009 |  |  | 39,118 |
Israel | 26,980 |  |  | 30,182 |
Europe | 12,924 |  |  | 13,300 |
Rest of Asia | 12,041 |  |  | 10,279 |
Total | $ | 286,306 |  |  | $ | 283,975 |

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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