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GEOGRAPHIC AND SIGNIFICANT CUSTOMER INFORMATION (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2019 | Jul. 28, 2019 | Apr. 28, 2019 | Jan. 27, 2019 | Oct. 31, 2018 | Jul. 29, 2018 | Apr. 29, 2018 | [1] | Jan. 28, 2018 | Oct. 31, 2019 | Oct. 31, 2018 | Oct. 29, 2017
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 156,256 | $ 138,112 | $ 131,580 | $ 124,712 | $ 144,660 | $ 136,391 | $ 130,779 | $ 123,446 | $ 550,660 | [1] | $ 535,276 | [1] | $ 450,678
Long-lived assets | 632,441 |  |  |  | 571,781 |  |  |  | 632,441 |  | 571,781 |  | 535,197
Customer One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 87,000 |  | 78,400 |  | 73,600
IC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 406,191 |  | 416,064 |  | 350,260
FPD [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 144,469 |  | 119,212 |  | 100,418
Taiwan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 244,377 |  | 237,039 |  | 187,818
Long-lived assets | 146,467 |  |  |  | 177,626 |  |  |  | 146,467 |  | 177,626 |  | 186,192
Korea [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 147,734 |  | 147,066 |  | 122,165
Long-lived assets | 117,755 |  |  |  | 127,764 |  |  |  | 117,755 |  | 127,764 |  | 147,265
United States [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 105,045 |  | 112,648 |  | 102,040
Long-lived assets | 130,935 |  |  |  | 156,948 |  |  |  | 130,935 |  | 156,948 |  | 180,095
Europe [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 32,585 |  | 35,540 |  | 36,081
Long-lived assets | 4,890 |  |  |  | 6,458 |  |  |  | 4,890 |  | 6,458 |  | 13,372
China [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 19,010 |  | 1,157 |  | 168
Long-lived assets | $ 232,394 |  |  |  | $ 102,985 |  |  |  | 232,394 |  | 102,985 |  | 8,273
All Other Asia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | $ 1,909 |  | $ 1,826 |  | $ 2,406
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Customer Account [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of net sales accounted for by significant customer |  |  |  |  |  |  |  |  | 16.00% |  | 16.00% |  | 16.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer Two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Customer Account [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of net sales accounted for by significant customer |  |  |  |  |  |  |  |  | 15.00% |  | 15.00% |  | 16.00%
[1] | Includes $0.6 million gain on sale of assets.

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