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SHAREHOLDERS' EQUITY AND EMPLOYEE BENEFIT PLANS (Total equity-based compensation expense) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total equity-based compensation expense $ 3,396 $ 3,201
Market-based restricted stock [Member]
    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total equity-based compensation expense 1,472 1,225
Time-based restricted stock [Member]
    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total equity-based compensation expense 1,705 1,732
Performance-based restricted stock
    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total equity-based compensation expense 33 9
Stock options [Member]
    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total equity-based compensation expense 6 25
Common stock [Member]
    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total equity-based compensation expense 180 210
Cost of sales [Member]
    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total equity-based compensation expense 105 148
Selling, general and administrative (1) [Member]
    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total equity-based compensation expense 2,616 2,326
Research and development [Member]
    
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Total equity-based compensation expense $ 675 $ 727