XML 56 R41.htm IDEA: XBRL DOCUMENT v3.8.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule Of Property, Plant And Equipment) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 29, 2017
Sep. 30, 2016
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross $ 181,505 $ 172,919
Less accumulated depreciation 132,567 123,921
Property, plant and equipment, net of accumulated depreciation 48,938 48,998
Property improvements    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross $ 590 590
Property improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 5 years  
Property improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 20 years  
Buildings and improvements    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross $ 21,770 21,631
Buildings and improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 20 years  
Buildings and improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 40 years  
Furniture and fixtures, equipment and computer software    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross $ 159,145 $ 150,698
Furniture and fixtures, equipment and computer software | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 3 years  
Furniture and fixtures, equipment and computer software | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years