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Operating Segment, Geographic and Significant Customer Information (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Segment Information |
|  | Semiconductor Test |  |  | Wireless Test |  |  | System Test |  |  | Industrial Automation |  |  | Corporate And Eliminations |  |  | Consolidated |
|  | (in thousands) |
2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 1,201,530 |  |  | $ | 184,572 |  |  | $ | 211,584 |  |  | $ | 41,892 |  |  | $ | — |  |  | $ | 1,639,578 |
Income (loss) before taxes (1)(2) |  |  | 260,154 |  |  |  | (13,830 | ) |  |  | 25,101 |  |  |  | (7,574 | ) |  |  | (10,727 | ) |  |  | 253,124 |
Total assets (3) |  |  | 610,869 |  |  |  | 427,880 |  |  |  | 102,547 |  |  |  | 344,260 |  |  |  | 1,063,118 |  |  |  | 2,548,674 |
Property additions |  |  | 79,052 |  |  |  | 3,133 |  |  |  | 6,228 |  |  |  | 1,465 |  |  |  | — |  |  |  | 89,878 |
Depreciation and amortization expense |  |  | 64,415 |  |  |  | 53,440 |  |  |  | 4,390 |  |  |  | 14,500 |  |  |  | 4,027 |  |  |  | 140,772 |
2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 1,300,790 |  |  | $ | 184,535 |  |  | $ | 162,499 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,647,824 |
Income (loss) before taxes (1)(2) |  |  | 255,803 |  |  |  | (116,196 | ) |  |  | 12,116 |  |  |  | — |  |  |  | (56,347 | ) |  |  | 95,376 |
Total assets (3) |  |  | 580,501 |  |  |  | 478,974 |  |  |  | 95,105 |  |  |  | — |  |  |  | 1,383,940 |  |  |  | 2,538,520 |
Property additions |  |  | 159,783 |  |  |  | 3,730 |  |  |  | 5,469 |  |  |  | — |  |  |  | — |  |  |  | 168,982 |
Depreciation and amortization expense |  |  | 84,990 |  |  |  | 53,308 |  |  |  | 5,399 |  |  |  | — |  |  |  | 8,847 |  |  |  | 152,544 |
2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 1,023,041 |  |  | $ | 251,871 |  |  | $ | 153,021 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,427,933 |
Income before taxes (1)(2) |  |  | 153,797 |  |  |  | 23,153 |  |  |  | 3,115 |  |  |  | — |  |  |  | 21,857 |  |  |  | 201,922 |
Total assets (3) |  |  | 632,840 |  |  |  | 645,001 |  |  |  | 79,983 |  |  |  | — |  |  |  | 1,272,000 |  |  |  | 2,629,824 |
Property additions |  |  | 94,303 |  |  |  | 5,358 |  |  |  | 7,070 |  |  |  | — |  |  |  | — |  |  |  | 106,731 |
Depreciation and amortization expense |  |  | 72,472 |  |  |  | 51,675 |  |  |  | 5,180 |  |  |  | — |  |  |  | 21,360 |  |  |  | 150,687 |
(1) | Interest income, interest expense, other (income) expense, net, contingent consideration adjustments and pension and postretirement plans actuarial gains and losses are included in Corporate and Eliminations.
(2) | Included in income (loss) before taxes are charges and credits related to restructuring and other, inventory charges and goodwill impairment charges.
(3) | Total business assets are directly attributable to each business. Corporate assets consist of cash and cash equivalents, marketable securities and certain other assets.
Revenues by Country | Information as to Teradyne’s revenues by country is as follows:
|  | 2015 |  |  | 2014 |  |  | 2013 |
|  | (in thousands) |
Revenues from customers (1): |  |  |  |  |  |  |  |  |  |  |  |
Taiwan |  | $ | 436,389 |  |  | $ | 495,942 |  |  | $ | 265,472 |
China |  |  | 264,898 |  |  |  | 292,145 |  |  |  | 323,564 |
United States |  |  | 217,386 |  |  |  | 213,104 |  |  |  | 230,178 |
Japan |  |  | 128,228 |  |  |  | 63,761 |  |  |  | 81,806 |
Korea |  |  | 120,224 |  |  |  | 145,608 |  |  |  | 119,286 |
Europe |  |  | 111,903 |  |  |  | 111,043 |  |  |  | 90,797 |
Singapore |  |  | 105,216 |  |  |  | 119,421 |  |  |  | 114,765 |
Philippines |  |  | 96,103 |  |  |  | 68,662 |  |  |  | 63,392 |
Malaysia |  |  | 76,707 |  |  |  | 83,910 |  |  |  | 86,900 |
Thailand |  |  | 59,104 |  |  |  | 44,117 |  |  |  | 32,209 |
Rest of the World |  |  | 23,420 |  |  |  | 10,111 |  |  |  | 19,564 |
|  | $ | 1,639,578 |  |  | $ | 1,647,824 |  |  | $ | 1,427,933 |
(1) | Revenues attributable to a country are based on location of customer site.
Long-Lived Assets by Geographic Area | Long-lived assets by geographic area:
|  | United States |  |  | Foreign(1) |  |  | Total |
|  | (in thousands) |
December 31, 2015 |  | $ | 198,424 |  |  | $ | 74,990 |  |  | $ | 273,414 |
December 31, 2014 |  | $ | 206,334 |  |  | $ | 122,704 |  |  | $ | 329,038 |
(1) | As of December 31, 2015 and 2014, long-lived assets attributable to Singapore were $39.9 million and $99.2 million, respectively.
Semiconductor Test |
Schedule of Segment Reporting Information by Segment Charges | Included in the Semiconductor Test segment are charges in the following accounts:
|  | For the Year Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
|  | (in thousands) |
Cost of revenues—inventory charge |  | $ | 10,508 |  |  | $ | 14,389 |  |  | $ | 5,218 |
Restructuring and other |  |  | 499 |  |  |  | 490 |  |  |  | 1,016 |
System Test |
Schedule of Segment Reporting Information by Segment Charges | Included in the System Test segment are charges in the following accounts:
|  | For the Year Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
|  | (in thousands) |
Cost of revenues—inventory charge |  | $ | 8,324 |  |  | $ | 2,125 |  |  | $ | 4,168 |
Restructuring and other |  |  | 1,037 |  |  |  | 742 |  |  |  | 1,431 |
Wireless Test |
Schedule of Segment Reporting Information by Segment Charges | Included in the Wireless Test segment are charges in the following accounts:
|  | For the Year Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
|  | (in thousands) |
Cost of revenues—inventory charge |  | $ | 2,500 |  |  | $ | 5,679 |  |  | $ | 7,206 |
Restructuring and other |  |  | — |  |  |  | 565 |  |  |  | 82 |
Goodwill impairment charge |  |  | — |  |  |  | 98,897 |  |  |  | — |
Industrial Automation |
Schedule of Segment Reporting Information by Segment Charges | Included in the Industrial Automation segment are charges in the following account:
|  | For the Year Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
|  | (in thousands) |
Cost of revenues—inventory step-up (1) |  | $ | 1,567 |  |  | $ | — |  |  | $ | — |
(1) | Included in the cost of revenues for the years ended December 31, 2015 is the cost for purchase accounting inventory step-up.
Corporate And Eliminations |
Schedule of Segment Reporting Information by Segment Charges | Included in the Corporate and Eliminations segment are charges and credits in the following accounts:
|  | For the Year Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
|  | (in thousands) |
Restructuring and other—Universal Robots contingent consideration adjustment |  | $ | 5,339 |  |  | $ | — |  |  | $ | — |
Restructuring and other—ZTEC contingent consideration adjustment |  |  | (1,600 | ) |  |  | (630 | ) |  |  | — |
Restructuring and other—AIT contingent consideration adjustment |  |  | (1,250 | ) |  |  | — |  |  |  | — |
Restructuring and other—acquisition costs |  |  | 1,104 |  |  |  | 372 |  |  |  | — |
Restructuring and other |  |  | — |  |  |  | 198 |  |  |  | (449 | )
Other (income) expense, net—gain from the sale of an equity investment |  |  | (5,406 | ) |  |  | — |  |  |  | (34,212 | )
Selling and administrative—stock based compensation expense (1) |  |  | — |  |  |  | 6,598 |  |  |  | — |
(1) | Expense related to the January 2014 retirement of Teradyne’s former chief executive officer; see Note N: “Stock-Based Compensation.”

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