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Property and equipment, net
 12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property and equipment, net Property and equipment, net
Property and equipment, net consist of the following at year-end: 
 20212020
Land$128,055 $134,148 
Buildings and leasehold improvements660,745 657,652 
Equipment750,963 734,995 
Total cost1,539,763 1,526,795 
Total accumulated depreciation(796,230)(730,263)
 $743,533 $796,532 
 Total depreciation expense for fiscal years 2021, 2020 and 2019 amounted to $109,462, $115,031 and $111,638, respectively.