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SHAREHOLDERS' EQUITY AND EMPLOYEE BENEFIT PLANS (Total equity-based compensation expense) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Oct. 01, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total equity-based compensation expense $ 10,670 $ 8,691 $ 7,212
Market-based restricted stock [Member]
      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total equity-based compensation expense 4,135 2,929 1,961
Time-based restricted stock [Member]
      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total equity-based compensation expense 5,545 4,732 4,003
Performance-based restricted stock
      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total equity-based compensation expense 107 269 442
Stock options [Member]
      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total equity-based compensation expense 43 41 86
Common stock [Member]
      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total equity-based compensation expense 840 720 720
Cost of sales [Member]
      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total equity-based compensation expense 295 312 213
Selling, general and administrative (1) [Member]
      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total equity-based compensation expense 8,457 6,602 5,671
Research and development [Member]
      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total equity-based compensation expense $ 1,918 $ 1,777 $ 1,328