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SEGMENT INFORMATION (Operating information by segment) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Sep. 28, 2013
Jun. 29, 2013
Mar. 30, 2013
Dec. 29, 2012
Sep. 29, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 28, 2013
Sep. 29, 2012
Oct. 01, 2011
Net revenue:                      
Net revenue $ 173,608 $ 141,181 $ 106,110 $ 114,039 $ 269,166 [1] $ 255,525 $ 146,308 $ 120,024 $ 534,938 $ 791,023 $ 830,401
Cost of sales :                      
Cost of sales                 287,993 423,633 442,492
Gross profit :                      
Gross profit 80,686 65,914 48,820 51,525 122,984 [1] 122,443 66,687 55,276 246,945 367,390 387,909
Operating expenses:                      
Operating expenses                 181,139 188,164 217,849
Income from operations:                      
Income from operations 34,544 18,867 8,190 4,205 70,332 [1] 76,276 20,242 12,376 65,806 179,226 170,060
Equipment [Member]
                      
Net revenue:                      
Net revenue                 472,567 727,082 759,331
Cost of sales :                      
Cost of sales                 261,270 397,210 412,914
Gross profit :                      
Gross profit                 211,297 329,872 346,417
Operating expenses:                      
Operating expenses                 158,306 164,081 189,631
Income from operations:                      
Income from operations                 52,991 165,791 156,786
Expendable Tools [Member]
                      
Net revenue:                      
Net revenue                 62,371 63,941 71,070
Cost of sales :                      
Cost of sales                 26,723 26,423 29,578
Gross profit :                      
Gross profit                 35,648 37,518 41,492
Operating expenses:                      
Operating expenses                 22,833 24,083 28,218
Income from operations:                      
Income from operations                 $ 12,815 $ 13,435 $ 13,274
[1] Includes approximately $7.5 million of income tax expense associated with additional tax exposure in Asia which was subsequently reversed in September 2012.