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DEPRECIATION AND AMORTIZATION
 12 Months Ended
Dec. 29, 2019
Depreciation and amortisation expense [abstract]  
DEPRECIATION AND AMORTIZATION
DEPRECIATION AND AMORTIZATION:
 
2019

 
2018

 
 
 
Depreciation of property, plant and equipment (note 8)
$
117,945

 
$
125,797

Depreciation of right-of-use assets (note 9)
13,295

 
—

Adjustment for the variation of depreciation included in inventories at the beginning and end of the year
3,059

 
4,940

Amortization of intangible assets, excluding software (note 10)
17,289

 
22,864

Amortization of software (note 10)
5,206

 
4,475

Depreciation and amortization included in net earnings
$
156,794

 
$
158,076