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Asset Retirement Obligations (Tables)
 12 Months Ended
Aug. 26, 2017
Asset Retirement Obligation Disclosure [Abstract]  
Rollforward of Asset Retirement Liability
A rollforward of the Company’s asset retirement liability is as follows for fiscal 2017 and 2016 (in thousands):
 
 
August 26,
2017

August 27,
2016
Beginning balance
$
13,032

 
$
12,381

Accretion expense
853

 
826

Effect of exchange rate changes
230

 
(69
)
Asset retirement liabilities settled
—

 
(500
)
Change in estimate
(715
)
 
394

Ending balance
$
13,400

 
$
13,032