Geographic and Significant Customer Information - Summary of Different Geographic Regions (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Apr. 01, 2016 |
Apr. 03, 2015 |
Apr. 01, 2016 |
Apr. 03, 2015 |
Oct. 02, 2015 |
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| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||||||||
| Revenue by Geographic Region | $ 133,579 | $ 102,431 | $ 249,353 | $ 198,987 | ||||||
| Long-Lived Assets by Geographic Region | 99,637 | 99,637 | $ 83,759 | |||||||
| United States [Member] | ||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||||||||
| Revenue by Geographic Region | 36,502 | 36,336 | 70,984 | 82,185 | ||||||
| Long-Lived Assets by Geographic Region | 83,553 | 83,553 | 72,617 | |||||||
| Asia Pacific [Member] | ||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||||||||
| Revenue by Geographic Region | [1] | 87,009 | 57,901 | 159,464 | 99,952 | |||||
| Long-Lived Assets by Geographic Region | [1] | 13,167 | 13,167 | 8,740 | ||||||
| Other Countries [Member] | ||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||||||||||
| Revenue by Geographic Region | [2] | 10,068 | $ 8,194 | 18,905 | $ 16,850 | |||||
| Long-Lived Assets by Geographic Region | [2] | $ 2,917 | $ 2,917 | $ 2,402 | ||||||
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