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Employee Benefit Plans (Tables)
 9 Months Ended
Jul. 01, 2017
Compensation and Retirement Disclosure [Abstract]  
Schedule of Costs For The Retirement Benefit Plan
Net periodic benefit costs for our defined benefit retirement plan included the following components:
 
 
Three Months Ended
 
Nine Months Ended
(in thousands)
 
July 1,
2017
 
July 2,
2016
 
July 1,
2017
 
July 2,
2016
Service cost
 
$
356

 
$
246

 
$
1,047

 
$
728

Interest cost
 
108

 
153

 
317

 
455

Expected return on plan assets
 
(271
)
 
(259
)
 
(797
)
 
(769
)
Net amortization and deferral
 
249

 
147

 
731

 
437

Net periodic benefit cost
 
$
442

 
$
287

 
$
1,298

 
$
851