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Segment Information (Tables) | 9 Months Ended
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Oct. 04, 2015
Segment Information | Segment information for the three and nine months ended October 4, 2015 and September 28, 2014 is as follows:
|  | Semiconductor Test |  |  | Wireless Test |  |  | System Test |  |  | Industrial Automation |  |  | Corporate and Eliminations |  |  | Consolidated |
|  | (in thousands) |
Three months ended October 4, 2015: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 325,516 |  |  | $ | 55,359 |  |  | $ | 69,062 |  |  | $ | 16,057 |  |  | $ | — |  |  | $ | 465,994 |
Income (loss) before income taxes (1)(2) |  |  | 73,957 |  |  |  | 2,997 |  |  |  | 13,751 |  |  |  | (4,847 | ) |  |  | 1,550 |  |  |  | 87,408 |
Total assets (3) |  |  | 591,445 |  |  |  | 447,461 |  |  |  | 109,078 |  |  |  | 360,068 |  |  |  | 1,153,832 |  |  |  | 2,661,884 |
Three months ended September 28, 2014: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 380,083 |  |  | $ | 54,838 |  |  | $ | 43,089 |  |  | $ | — |  |  | $ | — |  |  | $ | 478,010 |
Income before income taxes (1)(2) |  |  | 91,900 |  |  |  | 2,379 |  |  |  | 5,779 |  |  |  | — |  |  |  | 612 |  |  |  | 100,670 |
Total assets (3) |  |  | 748,499 |  |  |  | 614,911 |  |  |  | 83,769 |  |  |  | — |  |  |  | 1,247,828 |  |  |  | 2,695,007 |
Nine months ended October 4, 2015: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 996,748 |  |  | $ | 152,285 |  |  | $ | 152,320 |  |  | $ | 19,780 |  |  | $ | — |  |  | $ | 1,321,133 |
Income (loss) before income taxes (1)(2) |  |  | 246,627 |  |  |  | (603 | ) |  |  | 10,423 |  |  |  | (6,547 | ) |  |  | 12,081 |  |  |  | 261,981 |
Total assets (3) |  |  | 591,445 |  |  |  | 447,461 |  |  |  | 109,078 |  |  |  | 360,068 |  |  |  | 1,153,832 |  |  |  | 2,661,884 |
Nine months ended September 28, 2014: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 1,063,254 |  |  | $ | 144,747 |  |  | $ | 116,586 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,324,587 |
Income (loss) before income taxes (1)(2) |  |  | 233,770 |  |  |  | (8,477 | ) |  |  | 5,512 |  |  |  | — |  |  |  | (10,616 | ) |  |  | 220,189 |
Total assets (3) |  |  | 748,499 |  |  |  | 614,911 |  |  |  | 83,769 |  |  |  | — |  |  |  | 1,247,828 |  |  |  | 2,695,007 |
(1) | Interest income, interest expense, and other (income) expense, net are included in Corporate and Eliminations.
(2) | Included in the income (loss) before income taxes for each of the segments are charges related to inventory and other.
(3) | Total business assets are directly attributable to each business. Corporate assets consist of cash and cash equivalents, marketable securities and certain other assets.
Semiconductor Test |
Schedule of Segment Reporting Information by Segment Charges | Included in the Semiconductor Test segment are charges in the following line items in the statements of operations:
|  | For the Three Months Ended |  |  | For the Nine Months Ended |
|  | October 4, 2015 |  |  | September 28, 2014 |  |  | October 4, 2015 |  |  | September 28, 2014 |
|  | (in thousands) |
Cost of revenues—inventory charge |  | $ | 1,697 |  |  | $ | 4,404 |  |  | $ | 8,637 |  |  | $ | 14,322 |
Restructuring and other |  |  | 194 |  |  |  | — |  |  |  | 499 |  |  |  | — |
Total |  | $ | 1,891 |  |  | $ | 4,404 |  |  | $ | 9,136 |  |  | $ | 14,322 |
Wireless Test |
Schedule of Segment Reporting Information by Segment Charges | Included in the Wireless Test segment are charges in the following line items in the statements of operations:
|  | For the Three Months Ended |  |  | For the Nine Months Ended |
|  | October 4, 2015 |  |  | September 28, 2014 |  |  | October 4, 2015 |  |  | September 28, 2014 |
|  | (in thousands) |
Cost of revenues—inventory charge |  | $ | 901 |  |  | $ | 1,267 |  |  | $ | 2,077 |  |  | $ | 5,239 |
Restructuring and other |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 426 |
Total |  | $ | 901 |  |  | $ | 1,267 |  |  | $ | 2,077 |  |  | $ | 5,665 |
System Test |
Schedule of Segment Reporting Information by Segment Charges | Included in the System Test segment are charges in the following line items in the statements of operations:
|  | For the Three Months Ended |  |  | For the Nine Months Ended |
|  | October 4, 2015 |  |  | September 28, 2014 |  |  | October 4, 2015 |  |  | September 28, 2014 |
|  | (in thousands) |
Cost of revenues—inventory charge |  | $ | 460 |  |  | $ | 763 |  |  | $ | 8,225 |  |  | $ | 1,944 |
Restructuring and other |  |  | 923 |  |  |  | 225 |  |  |  | 923 |  |  |  | 371 |
Total |  | $ | 1,383 |  |  | $ | 988 |  |  | $ | 9,148 |  |  | $ | 2,315 |
Industrial Automation |
Schedule of Segment Reporting Information by Segment Charges | Included in the Industrial Automation segment are charges in the following line item in the statements of operations:
|  | For the Three Months Ended |  |  | For the Nine Months Ended |
|  | October 4, 2015 |  |  | September 28, 2014 |  |  | October 4, 2015 |  |  | September 28, 2014 |
|  | (in thousands) |
Cost of revenues—inventory step-up (1) |  | $ | 972 |  |  | $ | — |  |  | $ | 1,567 |  |  | $ | — |
Total |  | $ | 972 |  |  | $ | — |  |  | $ | 1,567 |  |  | $ | — |
Corporate And Eliminations |
Schedule of Segment Reporting Information by Segment Charges | Included in Corporate and Eliminations are charges and credits in the following line items in the statements of operations:
|  | For the Three Months Ended |  |  | For the Nine Months Ended |
|  | October 4, 2015 |  |  | September 28, 2014 |  |  | October 4, 2015 |  |  | September 28, 2014 |
|  | (in thousands) |
Restructuring and other—AIT contingent consideration adjustment |  | $ | (1,000 | ) |  | $ | — |  |  | $ | (1,000 | ) |  | $ | — |
Restructuring and other—Universal Robots acquisition costs |  |  | 144 |  |  |  | — |  |  |  | 1,104 |  |  |  | — |
Restructuring and other—ZTEC contingent consideration adjustment |  |  | — |  |  |  | (630 | ) |  |  | (1,600 | ) |  |  | (630 | )
Other (income) expense, net—gain from the sale of an equity investment |  |  | — |  |  |  | — |  |  |  | (5,406 | ) |  |  | — |
Selling and administrative—stock based compensation expense (2) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 6,598 |
Total |  | $ | (856 | ) |  | $ | (630 | ) |  | $ | (6,902 | ) |  | $ | 5,968 |
(1) | Included in the cost of revenues for the three and nine months ended October 4, 2015 is the cost for purchase accounting inventory step-up.
(2) | Expense related to the January 2014 retirement of Teradyne’s former chief executive officer; see Note J: “Stock-Based Compensation.”

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