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Note 14 Plan Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Oct. 03, 2015
UNITED STATES      
Change in Fair Value of Plan Assets [Roll Forward]      
Beginning fair value $ 17,594 $ 18,646 $ 21,472
Actual return 1,598 1,341 (605)
Employer contributions 120 0 0
Benefits paid (709) (718) (660)
Other (1) [1] (1,673) (1,675) (1,561)
Ending fair value 16,930 17,594 18,646
Over (under) Funded Status [Abstract]      
Underfunded status (7,813) (10,781) (7,795)
Non-U.S.      
Change in Fair Value of Plan Assets [Roll Forward]      
Beginning fair value 26,045 27,079 29,049
Actual return 590 (461) 2,231
Employer contributions 695 607 422
Benefits paid (1,499) (1,266) (942)
Other (1) [1] 1,162 86 (3,681)
Ending fair value 26,993 26,045 27,079
Over (under) Funded Status [Abstract]      
Underfunded status $ (21,880) $ (27,611) $ (21,737)
Cash | UNITED STATES      
Weighted Average Asset Allocations by Asset Category [Abstract]      
Target 0.00%    
Actual 0.00% 0.00%  
Cash | Non-U.S.      
Weighted Average Asset Allocations by Asset Category [Abstract]      
Target 0.00%    
Actual 2.50% 1.30%  
Level 1 | Equity securities | UNITED STATES      
Weighted Average Asset Allocations by Asset Category [Abstract]      
Target 51.00%    
Actual 52.80% 51.10%  
Level 1 | Equity securities | Non-U.S.      
Weighted Average Asset Allocations by Asset Category [Abstract]      
Target 20.00%    
Actual 30.00% 26.40%  
Level 1 | Debt securities | UNITED STATES      
Weighted Average Asset Allocations by Asset Category [Abstract]      
Target 49.00%    
Actual 47.20% 48.90%  
Level 1 | Debt securities | Non-U.S.      
Weighted Average Asset Allocations by Asset Category [Abstract]      
Target 80.00%    
Actual 67.50% 72.30%  
[1] Includes miscellaneous items such as settlements, foreign exchange rate movements, etc.