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Disaggregated Revenue by Primary Geographical Market, Major Product Line and Timing of Revenue Recognition (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jul. 02, 2023
Jul. 03, 2022
Jul. 02, 2023
Jul. 03, 2022
Disaggregation of Revenue [Line Items]        
Total $ 684,437 [1] $ 840,766 [1] $ 1,301,966 [2] $ 1,596,136 [2]
Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 474,708 541,348 889,717 1,023,688
System Test        
Disaggregation of Revenue [Line Items]        
Total 94,272 [1] 134,702 [1] 168,903 [2] 253,371 [2]
Robotics        
Disaggregation of Revenue [Line Items]        
Total 71,634 101,055 160,848 204,244
Wireless Test        
Disaggregation of Revenue [Line Items]        
Total 43,823 [1] 63,854 [1] 82,498 [2] 115,372 [2]
Corporate and Eliminations        
Disaggregation of Revenue [Line Items]        
Total 0 [1] (193) [1] 0 [2] (539) [2]
Point in Time        
Disaggregation of Revenue [Line Items]        
Total 580,196 [1] 747,475 [1] 1,092,937 [2] 1,412,951 [2]
Point in Time | System Test        
Disaggregation of Revenue [Line Items]        
Total 76,801 [1] 118,692 [1] 133,658 [2] 223,981 [2]
Point in Time | Wireless Test        
Disaggregation of Revenue [Line Items]        
Total 40,261 [1] 60,765 [1] 75,624 [2] 109,194 [2]
Point in Time | Corporate and Eliminations        
Disaggregation of Revenue [Line Items]        
Total 0 [1] (193) [1] 0 [2] (539) [2]
Over Time        
Disaggregation of Revenue [Line Items]        
Total 104,241 [1] 93,291 [1] 209,029 [2] 183,185 [2]
Over Time | System Test        
Disaggregation of Revenue [Line Items]        
Total 17,471 [1] 16,010 [1] 35,245 [2] 29,390 [2]
Over Time | Wireless Test        
Disaggregation of Revenue [Line Items]        
Total 3,562 [1] 3,089 [1] 6,874 [2] 6,178 [2]
Asia Pacific        
Disaggregation of Revenue [Line Items]        
Total 499,492 [1] 654,897 [1] 923,986 [2] 1,218,732 [2]
Asia Pacific | System Test        
Disaggregation of Revenue [Line Items]        
Total 41,644 [1] 95,584 [1] 81,234 [2] 169,369 [2]
Asia Pacific | Wireless Test        
Disaggregation of Revenue [Line Items]        
Total 22,362 [1] 44,106 [1] 45,593 [2] 79,052 [2]
Americas        
Disaggregation of Revenue [Line Items]        
Total 125,049 [1] 116,903 [1] 243,640 [2] 231,324 [2]
Americas | System Test        
Disaggregation of Revenue [Line Items]        
Total 40,163 [1] 33,409 [1] 69,143 [2] 70,017 [2]
Americas | Wireless Test        
Disaggregation of Revenue [Line Items]        
Total 19,491 [1] 17,460 [1] 32,337 [2] 27,147 [2]
Americas | Corporate and Eliminations        
Disaggregation of Revenue [Line Items]        
Total 0 [1] (193) [1] 0 [2] (539) [2]
Europe, Middle East and Africa        
Disaggregation of Revenue [Line Items]        
Total 59,896 [1] 68,966 [1] 134,340 [2] 146,080 [2]
Europe, Middle East and Africa | System Test        
Disaggregation of Revenue [Line Items]        
Total 12,465 [1] 5,709 [1] 18,526 [2] 13,985 [2]
Europe, Middle East and Africa | Wireless Test        
Disaggregation of Revenue [Line Items]        
Total 1,970 [1] 2,288 [1] 4,568 [2] 9,173 [2]
SOC | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 354,694 [1] 459,464 [1] 701,528 [2] 846,048 [2]
SOC | Point in Time | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 282,080 [1] 395,211 [1] 555,354 [2] 718,666 [2]
SOC | Over Time | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 72,614 [1] 64,253 [1] 146,173 [2] 127,382 [2]
SOC | Asia Pacific | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 303,062 [1] 413,537 [1] 586,321 [2] 754,277 [2]
SOC | Americas | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 32,191 [1] 28,714 [1] 73,759 [2] 58,428 [2]
SOC | Europe, Middle East and Africa | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 19,441 [1] 17,213 [1] 41,448 [2] 33,343 [2]
Memory | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 120,014 [1] 81,884 [1] 188,189 [2] 177,640 [2]
Memory | Point in Time | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 112,547 [1] 74,790 [1] 173,805 [2] 163,513 [2]
Memory | Over Time | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 7,467 [1] 7,094 [1] 14,384 [2] 14,127 [2]
Memory | Asia Pacific | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 115,250 [1] 78,996 [1] 178,945 [2] 172,147 [2]
Memory | Americas | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 4,286 [1] 2,552 [1] 7,230 [2] 4,598 [2]
Memory | Europe, Middle East and Africa | Semiconductor Test        
Disaggregation of Revenue [Line Items]        
Total 478 [1] 336 [1] 2,014 [2] 895 [2]
Universal Robots (UR) | Robotics        
Disaggregation of Revenue [Line Items]        
Total 57,853 [1] 82,513 [1] 129,884 [2] 167,797 [2]
Universal Robots (UR) | Point in Time | Robotics        
Disaggregation of Revenue [Line Items]        
Total 55,737 [1] 80,409 [1] 125,760 [2] 163,591 [2]
Universal Robots (UR) | Over Time | Robotics        
Disaggregation of Revenue [Line Items]        
Total 2,116 [1] 2,104 [1] 4,124 [2] 4,206 [2]
Universal Robots (UR) | Asia Pacific | Robotics        
Disaggregation of Revenue [Line Items]        
Total 14,883 [1] 17,357 [1] 28,100 [2] 35,978 [2]
Universal Robots (UR) | Americas | Robotics        
Disaggregation of Revenue [Line Items]        
Total 22,832 [1] 27,732 [1] 43,273 [2] 55,880 [2]
Universal Robots (UR) | Europe, Middle East and Africa | Robotics        
Disaggregation of Revenue [Line Items]        
Total 20,138 [1] 37,424 [1] 58,511 [2] 75,939 [2]
MiR | Robotics        
Disaggregation of Revenue [Line Items]        
Total 13,781 [1] 18,542 [1] 30,964 [2] 36,447 [2]
MiR | Point in Time | Robotics        
Disaggregation of Revenue [Line Items]        
Total 12,770 [1] 17,801 [1] 28,735 [2] 34,545 [2]
MiR | Over Time | Robotics        
Disaggregation of Revenue [Line Items]        
Total 1,011 [1] 741 [1] 2,229 [2] 1,902 [2]
MiR | Asia Pacific | Robotics        
Disaggregation of Revenue [Line Items]        
Total 2,291 [1] 5,317 [1] 3,793 [2] 7,909 [2]
MiR | Americas | Robotics        
Disaggregation of Revenue [Line Items]        
Total 6,086 [1] 7,229 [1] 17,898 [2] 15,793 [2]
MiR | Europe, Middle East and Africa | Robotics        
Disaggregation of Revenue [Line Items]        
Total $ 5,404 [1] $ 5,996 [1] $ 9,273 [2] $ 12,745 [2]
[1] Includes $1.3 million and $1.9 million in 2023 and 2022, respectively, for leases of Teradyne’s systems recognized outside Accounting Standards Codification (“ASC”) 606 “Revenue from Contracts with Customers.”
[2] Includes $2.5 million and $4.2 million in 2023 and 2022, respectively, for leases of Teradyne’s systems recognized outside ASC 606 “Revenue from Contracts with Customers.”