XML 52 R39.htm IDEA: XBRL DOCUMENT v3.10.0.1
Derivatives - Narrative (Details) - USD ($)
3 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Sep. 29, 2018
Estimated unrealized losses, net of tax, expected to be reclassified in next 12 months $ 1,300,000    
Gains (losses) recognized in income for derivatives related to ineffective portions and amounts excluded from effectiveness testing 0 $ 0  
Derivatives designated as hedging instruments | Derivatives in Cash Flow Hedging Relationships | Foreign currency forward contracts      
Notional amount of forward exchange contracts 74,100,000   $ 74,000,000
Fair value of derivative liability 1,300,000   1,700,000
Derivatives not designated as hedging instruments | Foreign currency forward contracts      
Notional amount of forward exchange contracts 34,600,000   28,600,000
Fair value of derivative asset $ 400,000    
Fair value of derivative liability     $ 100,000