Schedule of Segment Reporting Information by Segment Charges and Credit (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Oct. 01, 2017 |
Oct. 02, 2016 |
Oct. 01, 2017 |
Oct. 02, 2016 |
|
Segment Reporting Information [Line Items] | ||||
Restructuring and other-employee severance | $ (4,407) | $ 12,177 | $ 392 | $ 16,372 |
System Test | ||||
Segment Reporting Information [Line Items] | ||||
Cost of revenues-inventory charge | $ 251 | 121 | $ 1,609 | 441 |
Restructuring and other-employee severance | $ (48) | $ (48) |