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Leases (Tables)
12 Months Ended
Dec. 30, 2017
Leases [Abstract]  
Operating Leases
Commitments for minimum rentals under non-cancelable leases are as follows (in thousands):
 
 
Operating Leases
2018
 
$
29,135

2019
 
24,018

2020
 
17,949

2021
 
13,883

2022
 
9,252

Thereafter
 
19,480

Total minimum lease payments
 
$
113,717

Rent expense was as follows (in thousands):
 
2017

 
2016

 
2015

Rent expense
$
32,158

 
$
35,288

 
$
33,970