XML 75 R62.htm IDEA: XBRL DOCUMENT v3.21.1
Property, plant and equipment (Schedule of Cost of Investment Property, Plant and Equipment) (Details) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year $ 16,737,595 $ 16,971,000
Balance at end of year 15,950,352 16,737,595
Land [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 1,291,000 1,217,000
Balance at end of year 1,316,000 1,291,000
Buildings [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 4,056,000 3,625,000
Balance at end of year 4,227,000 4,056,000
Machinery and equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 9,879,000 7,187,000
Balance at end of year 9,255,000 9,879,000
Transportation equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 76,000 78,000
Balance at end of year 75,000 76,000
Furniture, mixtures and computer equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 64,000 64,000
Balance at end of year 63,000 64,000
Constructions and machinery in-progress [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 1,371,000 4,800,000
Balance at end of year 1,015,000 1,371,000
Cost [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 37,028,000 36,562,000
Additions 951,000 1,271,000
Reclassifications 0  
Translation adjustments (266,000) (805,000)
Balance at end of year 37,713,000 37,028,000
Cost [Member] | Land [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 1,291,000 1,217,000
Additions 20,000 89,000
Reclassifications 0  
Translation adjustments 5,000 (15,000)
Balance at end of year 1,316,000 1,291,000
Cost [Member] | Buildings [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 5,138,000 4,680,000
Additions 323,000 591,000
Reclassifications 94,000  
Translation adjustments (115,000) (133,000)
Balance at end of year 5,440,000 5,138,000
Cost [Member] | Machinery and equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 28,926,000 28,957,000
Additions 525,000 532,000
Reclassifications 334,000  
Translation adjustments (148,000) (563,000)
Balance at end of year 29,637,000 28,926,000
Cost [Member] | Transportation equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 161,000 159,000
Additions 0 2,000
Reclassifications 0  
Translation adjustments 0 0
Balance at end of year 161,000 161,000
Cost [Member] | Furniture, mixtures and computer equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 141,000 139,000
Additions 0 4,000
Reclassifications 0  
Translation adjustments 3,000 (2,000)
Balance at end of year 144,000 141,000
Cost [Member] | Constructions and machinery in-progress [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 1,371,000 1,410,000
Additions 83,000 53,000
Reclassifications (428,000)  
Translation adjustments (11,000) (92,000)
Balance at end of year $ 1,015,000 $ 1,371,000