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Allowance for Doubtful Accounts (Tables)
 12 Months Ended
Sep. 24, 2016
Receivables [Abstract]  
Schedule of Allowance for Doubtful Accounts
Changes in the allowance for doubtful accounts are summarized below (in thousands):
 
Description
Balances at
Beginning
of Period
 
Charged/
(Credited)  to
Costs and
Expenses
 
Asset
Write-Offs,
Less
Recoveries
 
Balances at
End of
Period
Fiscal Year Ended September 27, 2014
21,158

 
8,988

 
(4,934
)
 
25,212

Fiscal Year Ended September 26, 2015
25,212

 
741

 
(6,657
)
 
19,296

Fiscal Year Ended September 24, 2016
19,296

 
6,041

 
(4,268
)
 
21,069