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Derivative Instruments - Effect on Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 29, 2019
Mar. 30, 2018
Mar. 29, 2019
Mar. 30, 2018
Derivative [Line Items]        
Foreign currency translation adjustments $ 5,936 $ (3,860) $ (1,684) $ (1,891)
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swap agreements        
Derivative [Line Items]        
Foreign currency translation adjustments $ (21,524) $ 31,323 $ (52,525) $ 36,568